refactor: mail services to nestjs

fix: Line-level discount

.all-contributorsrc

@@ -132,6 +132,42 @@
       "contributions": [
         "bug"
       ]
+    },
+    {
+      "login": "oleynikd",
+      "name": "Denis",
+      "avatar_url": "https://avatars.githubusercontent.com/u/3976868?v=4",
+      "profile": "https://github.com/oleynikd",
+      "contributions": [
+        "bug"
+      ]
+    },
+    {
+      "login": "mittalsam98",
+      "name": "Sachin Mittal",
+      "avatar_url": "https://avatars.githubusercontent.com/u/42431274?v=4",
+      "profile": "https://myself.vercel.app/",
+      "contributions": [
+        "bug"
+      ]
+    },
+    {
+      "login": "Champetaman",
+      "name": "Camilo Oviedo",
+      "avatar_url": "https://avatars.githubusercontent.com/u/64604272?v=4",
+      "profile": "https://www.camilooviedo.com/",
+      "contributions": [
+        "code"
+      ]
+    },
+    {
+      "login": "nklmantey",
+      "name": "Mantey",
+      "avatar_url": "https://avatars.githubusercontent.com/u/90279429?v=4",
+      "profile": "https://nklmantey.com/",
+      "contributions": [
+        "bug"
+      ]
     }
   ],
   "contributorsPerLine": 7,

.env.example

@@ -89,3 +89,14 @@ S3_ACCESS_KEY_ID=
 S3_SECRET_ACCESS_KEY=
 S3_ENDPOINT=
 S3_BUCKET=
+
+# PostHog 
+POSTHOG_API_KEY=
+POSTHOG_HOST=
+
+# Stripe Payment
+STRIPE_PAYMENT_SECRET_KEY=
+STRIPE_PAYMENT_PUBLISHABLE_KEY=
+STRIPE_PAYMENT_CLIENT_ID=
+STRIPE_PAYMENT_WEBHOOKS_SECRET=
+STRIPE_PAYMENT_REDIRECT_URL=

CHANGELOG.md

@@ -2,6 +2,228 @@
 
 All notable changes to Bigcapital server-side will be in this file.
 
+# [0.22.0]
+
+* feat: estimate, receipt, credit note mail preview by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/757
+* feat: Add discount to transactions by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/758
+* fix: update financial forms to use new formatted amount utilities and… by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/760
+* fix: total lines style by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/761
+* fix: discount & adjustment sale transactions bugs by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/762
+* fix: discount transactions GL entries by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/763
+
+# [0.21.2]
+
+* hotbug: upload attachments by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/755
+
+# [0.21.1]
+
+* fix: download invoice document on payment page by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/750
+* fix: attach branding template attrs to payment page by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/751
+* fix: make manual entries adjust decimal credit/debit amounts by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/754
+* feat: allow quantity of entries accept decimal value by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/753
+
+# [0.21.0]
+
+* fix: Credit and debit totals not balancing when decimal values are used by @nklmantey in https://github.com/bigcapitalhq/bigcapital/pull/722
+* docs: add nklmantey as a contributor for bug by @allcontributors in https://github.com/bigcapitalhq/bigcapital/pull/725
+* feat: track more services events by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/721
+* feat: Invoice mail receipt preview by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/723
+* fix: change the send mail button on invoice drawer by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/730
+* refactor: notification mail services by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/731
+* fix: attach payment link in sending invoice mail receipt by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/732
+* fix: send invoice drawer layout by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/733
+* fix: hook up cc and bcc fields to mail sender by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/734
+* fix: company logo does not show up in mail receipt preview by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/736
+* fix: change default invoice mail message by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/737
+* fix: typing invoice send mail fields by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/738
+* fix: clean up ivnoice mail receipt preview component by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/739
+* feat: add shared package to pdf templates to render in the server and… by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/735
+* feat: getting invoice preview on send mail view by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/740
+* fix: style SSR invoice paper template by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/741
+* fix: send invoice receipt addresses by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/742
+* fix: due invoice server invoice by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/744
+* fix: `BIG-265` forgot password text by @ibutiti in https://github.com/bigcapitalhq/bigcapital/pull/745
+* Crims on sv translation by @Crims-on in https://github.com/bigcapitalhq/bigcapital/pull/671
+* feat: Added Spanish language to the App 🇪🇸 by @angelosorno in https://github.com/bigcapitalhq/bigcapital/pull/530
+* fix: mail services by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/746
+* fix: company logo of the template by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/747
+* fix: monorepo dependencies scope by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/748
+
+# [0.20.6] 
+
+* fix: Import category column of item resource by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/710
+* fix: Parse the uppercase values in importing by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/711
+* chore: Move i18nApply localization to the account transformer by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/713
+* fix: Sync Plaid credit card account type by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/714
+* fix: Sync account normal of cashflow GL entries by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/715
+* feat: Add quantity column to pdf templates by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/716
+* feat: Pre-line invoice statements by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/717
+* feat: Invoice number in downloaded pdf document by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/718
+* feat: Track events of pdf documents views by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/719
+* fix: Customer note does not appear in pdf document by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/720
+
+# [0.20.5]
+
+* fix: Disable tabs of the pdf customization if the first field not filed up by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/701
+* fix: Invoice form layout by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/705
+* refactor: Invoice, estimate, receipt, credit note and payment received date input fields by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/707
+* feat: Add customize templates button to edit forms by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/708
+* feat: Track account, invoice and item viewed events by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/709
+
+# [0.20.4]
+
+* fix: Delete company logo from the PDF template by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/699
+* fix: Set max width/height to company logo of pdf templates by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/700
+
+# [0.20.3]
+
+* feat: Assign default PDF template automatically by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/687
+* fix: pdf template addresses controlling by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/688
+* fix: Remove empty lines from address formats by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/690
+* fix: Pdf templates layout by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/691
+* feat: Download invoice pdf of the payment link by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/689
+* fix: Display country name by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/693
+* feat: Add shared packages to Docker container by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/694
+
+# [0.20.2]
+
+* feat: Assign default PDF template automatically by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/687
+* fix: pdf template addresses controlling by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/688
+* fix: Remove empty lines from address formats by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/690
+* fix: Pdf templates layout by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/691
+* feat: Download invoice pdf of the payment link by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/689
+* fix: Display country name by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/693
+* feat: Add shared packages to Docker container by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/694
+
+# [0.20.1]
+
+* fix: Getting uploaded object uri by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/684
+
+# [0.20.0]
+
+* feat: Customize pdf templates by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/667
+* feat: Onboard accounts to Stripe Connect by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/668
+* feat: Upload company logo to invoice templates by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/670
+* fix: Invoice pdf customize by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/672
+* fix: Invoice customize bugs by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/673
+* feat: Clean up payment links endpoints by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/674
+* feat: Hook up company logo to server-side pdf templates by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/675
+* feat: Company branding preferences by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/677
+* feat: Pdf templates customer/company addresses by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/678
+* fix: Listen to Stripe session completed event by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/679
+* feat: Track pdf templates Posthog events by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/680
+* fix: Branding customize content by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/681
+* feat: Listen to Stripe integration events by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/682
+* feat: Hook up customer/company address to invoice preview of payment page by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/683
+
+# [0.19.17]
+
+* fix: Un-categorize bank transactions by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/663
+
+# [0.19.16]
+
+* feat: Tracking more Posthog events by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/653
+* fix: Expense cannot accept credit card as payment account by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/654
+* fix: Suspense the lazy loaded components in banking pages by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/657
+* feat: Add help dropdown menu by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/656
+* feat: Bank pages layout breaking by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/658
+* feat: Datatable UI improvements by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/655
+* fix: Array cast of recognize function rule ids by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/660
+* fix: Payment made filling the form full amount field by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/661
+* feat: Tabular number of all money columns by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/659
+* refactor: The expense G/L writer by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/662
+
+## [0.19.15] - 
+
+* fix: Bank transactions infinity scrolling by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/648
+* feat: Integrate multiple branches and warehouses to resource importing by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/645
+* fix: Integrate multiple branches with expense resource by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/649
+* feat: Cover more tracking events. by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/650
+* feat: Track banking service events by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/651
+
+## [0.19.14]
+
+* fix: Import bugs by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/643
+* fix: Set default index to transaction entries by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/644
+* feat(server): Events tracking using Posthog by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/646
+
+## [0.19.13]
+
+* fix: Subscription middleware by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/624
+* fix: Getting the sheet columns in import sheet by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/641
+
+## [0.19.12]
+
+* fix: Typo one-click demo page by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/640
+
+## [0.19.11]
+
+* fix: Avoid running the cost job in import preview by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/635
+* fix: Debounce scheduling calculating items cost by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/634
+* fix: Expand the resources export page size limitation by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/636
+* feat: Optimize loading perf. by splitting big chunks and lazy loading them by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/632
+* fix: Use standard ISO 8601 format for exported data by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/638
+* fix: Add customer type to customers resource by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/639
+
+## [0.19.10]
+
+* fix: Add subscription plans offer text by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/629
+
+## [0.19.9]
+
+* fix: Make webapp package env variables dynamic by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/628
+
+## [v0.19.8]
+
+* fix: Cannot import items income and cost accounts by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/617
+* fix: Some bank account details hidden by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/618
+* feat(ee): One-click demo account by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/616
+* feat: change banking service language by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/619
+* feat(banking): Filter uncategorized bank transactions by date by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/590
+* Fix: Syntax error caused error by @wolone in https://github.com/bigcapitalhq/bigcapital/pull/622
+* fix: Listen to payment webhooks by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/623
+* fix: Add prefix J-00001 to manual journals increments by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/625
+* fix: Disable sms service until Twilo integration by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/626
+* fix: Style tweaks in onboarding page by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/627
+
+## [0.19.5] - 18-08-2024
+
+* fix: Allow multi-lines to statements transactions by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/594
+* feat: Add amount comparators to amount bank rule field by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/595
+* fix: Transaction type and description do not show in general ledger. by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/596
+* fix: Refresh accounts and account transactions. by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/597
+* fix: Typo payments made by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/598
+* fix: Typo categories list by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/600
+* fix: Autofill the quick created customer/vendor by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/601
+* fix: Remove views tabs from receipts list by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/602
+* fix: Typo payment receive messages by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/599
+* fix: Enhance Dropzone visual of  accept and reject modes by @Champetaman in https://github.com/bigcapitalhq/bigcapital/pull/603
+* fix:  Matching bank transactions should create associate payment transactions by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/606
+* fix: Change Dropzone title and subtitle by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/607
+* fix: Inconsistance page size of paginated data tables by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/604
+* fix: Database connection lost error by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/611
+* fix: Language typos by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/613
+* Fix: Correctly display Date, Published At, and Created At in ExpenseDrawerHeader by @Champetaman in https://github.com/bigcapitalhq/bigcapital/pull/612
+* fix: Delete bank account with uncategorized transactions by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/614
+* feat: activate/inactivate account from drawer details by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/615
+
+## [v0.19.4]
+
+* feat: Import and export tax rates by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/591
+* feat: Un-categorize bank transactions in bulk by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/587
+* feat: Pending bank transactions by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/589
+* fix: Update `dev` Script in `package.json` to Use `cross-env` by @Champetaman in https://github.com/bigcapitalhq/bigcapital/pull/588
+* fix: Should not load branches on reconcile matching form if the branches not enabled by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/592
+* fix: Rounding the total amount the pending and matched transactions by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/593
+
+## [v0.18.0] - 10-08-2024
+
+* feat: Bank rules for automated categorization by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/511
+* feat: Categorize & match bank transaction by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/511
+* feat: Reconcile match transactions by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/522
+* fix: Issues in matching transactions by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/523
+* fix: Cashflow transactions types by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/524
+
 ## [v0.17.5] - 17-06-2024
 
 * fix: Balance sheet and P/L nested accounts by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/501

README.md

@@ -12,6 +12,9 @@
     <a href="https://github.com/bigcapitalhq/bigcapital/commits/develop">
       <img src="https://img.shields.io/github/commit-activity/m/bigcapitalhq/bigcapital/develop" />
     </a>
+    <a href="https://hub.docker.com/u/bigcapitalhq">
+      <img src="https://img.shields.io/docker/pulls/bigcapitalhq/webapp" />
+    </a>
     <a href="https://discord.com/invite/c8nPBJafeb">
       <img src="https://img.shields.io/discord/1066514716752625725?label=Discord" alt="" />
     </a>
@@ -126,6 +129,12 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
       <td align="center" valign="top" width="14.28%"><a href="http://vederis.id"><img src="https://avatars.githubusercontent.com/u/13505006?v=4?s=100" width="100px;" alt="Vederis Leunardus"/><br /><sub><b>Vederis Leunardus</b></sub></a><br /><a href="https://github.com/bigcapitalhq/bigcapital/commits?author=cloudsbird" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="http://www.pivoten.com"><img src="https://avatars.githubusercontent.com/u/104120598?v=4?s=100" width="100px;" alt="Chris Cantrell"/><br /><sub><b>Chris Cantrell</b></sub></a><br /><a href="https://github.com/bigcapitalhq/bigcapital/issues?q=author%3Accantrell72" title="Bug reports">🐛</a></td>
     </tr>
+    <tr>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/oleynikd"><img src="https://avatars.githubusercontent.com/u/3976868?v=4?s=100" width="100px;" alt="Denis"/><br /><sub><b>Denis</b></sub></a><br /><a href="https://github.com/bigcapitalhq/bigcapital/issues?q=author%3Aoleynikd" title="Bug reports">🐛</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://myself.vercel.app/"><img src="https://avatars.githubusercontent.com/u/42431274?v=4?s=100" width="100px;" alt="Sachin Mittal"/><br /><sub><b>Sachin Mittal</b></sub></a><br /><a href="https://github.com/bigcapitalhq/bigcapital/issues?q=author%3Amittalsam98" title="Bug reports">🐛</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://www.camilooviedo.com/"><img src="https://avatars.githubusercontent.com/u/64604272?v=4?s=100" width="100px;" alt="Camilo Oviedo"/><br /><sub><b>Camilo Oviedo</b></sub></a><br /><a href="https://github.com/bigcapitalhq/bigcapital/commits?author=Champetaman" title="Code">💻</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://nklmantey.com/"><img src="https://avatars.githubusercontent.com/u/90279429?v=4?s=100" width="100px;" alt="Mantey"/><br /><sub><b>Mantey</b></sub></a><br /><a href="https://github.com/bigcapitalhq/bigcapital/issues?q=author%3Anklmantey" title="Bug reports">🐛</a></td>
+    </tr>
   </tbody>
 </table>
 

lerna.json

@@ -3,6 +3,7 @@
   "version": "independent",
   "npmClient": "pnpm",
   "packages": [
-    "packages/*"
+    "packages/*",
+    "shared/*"
   ]
 }

package.json

@@ -4,12 +4,14 @@
   "scripts": {
     "dev": "lerna run dev",
     "build": "lerna run build",
-    "dev:webapp": "lerna run dev --scope \"@bigcapital/webapp\"",
-    "build:webapp": "lerna run build --scope \"@bigcapital/webapp\"",
-    "dev:server": "lerna run dev --scope \"@bigcapital/server\"",
-    "build:server": "lerna run build --scope \"@bigcapital/server\"",
-    "serve:server": "lerna run serve --scope \"@bigcapital/server\"",
-    "test:e2e": "playwright test",
+    "dev:webapp": "lerna run dev --scope \"@bigcapital/webapp\" --scope \"@bigcapital/utils\" --scope \"@bigcapital/pdf-templates\"",
+    "build:webapp": "lerna run build --scope \"@bigcapital/webapp\" --scope \"@bigcapital/utils\" --scope \"@bigcapital/pdf-templates\"",
+    "dev:server": "lerna run dev --scope \"@bigcapital/server\" --scope \"@bigcapital/utils\" --scope \"@bigcapital/pdf-templates\" --scope \"@bigcapital/email-components\"",
+    "build:server": "lerna run build --scope \"@bigcapital/server\" --scope \"@bigcapital/utils\" --scope \"@bigcapital/pdf-templates\" --scope \"@bigcapital/email-components\"",
+    "serve:server": "lerna run serve --scope \"@bigcapital/server\" --scope \"@bigcapital/utils\"",
+    "server2:start": "lerna run start:dev --scope \"@bigcapital/server2\"",
+    "test:watch": "lerna run test:watch",
+    "test:e2e": "lerna run test:e2e",
     "prepare": "husky install"
   },
   "devDependencies": {
@@ -29,5 +31,8 @@
     "hooks": {
       "commit-msg": "commitlint -E HUSKY_GIT_PARAMS"
     }
+  },
+  "dependencies": {
+    "tsup": "^8.3.0"
   }
 }

packages/server-nest/.env.example

@@ -0,0 +1,102 @@
+# Mail
+MAIL_HOST=
+MAIL_USERNAME=
+MAIL_PASSWORD=
+MAIL_PORT=
+MAIL_SECURE=
+MAIL_FROM_NAME=
+MAIL_FROM_ADDRESS=
+
+# Database
+DB_HOST=localhost
+DB_USER=bigcapital
+DB_PASSWORD=bigcapital
+DB_ROOT_PASSWORD=root
+DB_CHARSET=utf8
+
+# System database
+SYSTEM_DB_NAME=bigcapital_system
+# SYSTEM_DB_USER=
+# SYSTEM_DB_PASSWORD=
+# SYSTEM_DB_NAME=
+# SYSTEM_DB_CHARSET=
+
+# Tenant databases
+TENANT_DB_NAME_PERFIX=bigcapital_tenant_
+# TENANT_DB_HOST=
+# TENANT_DB_USER=
+# TENANT_DB_PASSWORD=
+# TENANT_DB_CHARSET=
+
+# Application
+BASE_URL=http://example.com
+JWT_SECRET=b0JDZW56RnV6aEthb0RGPXVEcUI
+
+# Jobs MongoDB
+MONGODB_DATABASE_URL=mongodb://localhost/bigcapital
+
+# App proxy
+PUBLIC_PROXY_PORT=80
+PUBLIC_PROXY_SSL_PORT=443
+
+# Agendash
+AGENDASH_AUTH_USER=agendash
+AGENDASH_AUTH_PASSWORD=123123
+
+# Sign-up restrictions
+SIGNUP_DISABLED=false
+SIGNUP_ALLOWED_DOMAINS=
+SIGNUP_ALLOWED_EMAILS=
+
+# Sign-up Email Confirmation
+SIGNUP_EMAIL_CONFIRMATION=false
+
+# API rate limit (points,duration,block duration).
+API_RATE_LIMIT=120,60,600
+
+# Gotenberg API for PDF printing - (production).
+GOTENBERG_URL=http://gotenberg:3000
+GOTENBERG_DOCS_URL=http://server:3000/public/
+
+# Gotenberg API - (development)
+# GOTENBERG_URL=http://localhost:9000
+# GOTENBERG_DOCS_URL=http://host.docker.internal:3000/public/
+
+# Exchange Rate Service
+EXCHANGE_RATE_SERVICE=open-exchange-rate
+
+# Open Exchange Rate
+OPEN_EXCHANGE_RATE_APP_ID=
+
+# The Plaid environment to use ('sandbox' or 'development').
+# https://plaid.com/docs/#api-host
+PLAID_ENV=sandbox
+
+# Your Plaid keys, which can be found in the Plaid Dashboard.
+# https://dashboard.plaid.com/account/keys
+PLAID_CLIENT_ID=
+PLAID_SECRET=
+PLAID_LINK_WEBHOOK=
+
+# https://docs.lemonsqueezy.com/guides/developer-guide/getting-started#create-an-api-key
+LEMONSQUEEZY_API_KEY=
+LEMONSQUEEZY_STORE_ID=
+LEMONSQUEEZY_WEBHOOK_SECRET=
+
+# S3 documents and attachments 
+S3_REGION=US
+S3_ACCESS_KEY_ID=
+S3_SECRET_ACCESS_KEY=
+S3_ENDPOINT=
+S3_BUCKET=
+
+# PostHog 
+POSTHOG_API_KEY=
+POSTHOG_HOST=
+
+# Stripe Payment
+STRIPE_PAYMENT_SECRET_KEY=
+STRIPE_PAYMENT_PUBLISHABLE_KEY=
+STRIPE_PAYMENT_CLIENT_ID=
+STRIPE_PAYMENT_WEBHOOKS_SECRET=
+STRIPE_PAYMENT_REDIRECT_URL=

packages/server-nest/.eslintrc.js

@@ -0,0 +1,25 @@
+module.exports = {
+  parser: '@typescript-eslint/parser',
+  parserOptions: {
+    project: 'tsconfig.json',
+    tsconfigRootDir: __dirname,
+    sourceType: 'module',
+  },
+  plugins: ['@typescript-eslint/eslint-plugin'],
+  extends: [
+    'plugin:@typescript-eslint/recommended',
+    'plugin:prettier/recommended',
+  ],
+  root: true,
+  env: {
+    node: true,
+    jest: true,
+  },
+  ignorePatterns: ['.eslintrc.js'],
+  rules: {
+    '@typescript-eslint/interface-name-prefix': 'off',
+    '@typescript-eslint/explicit-function-return-type': 'off',
+    '@typescript-eslint/explicit-module-boundary-types': 'off',
+    '@typescript-eslint/no-explicit-any': 'off',
+  },
+};

packages/server-nest/.gitignore

@@ -0,0 +1,56 @@
+# compiled output
+/dist
+/node_modules
+/build
+
+# Logs
+logs
+*.log
+npm-debug.log*
+pnpm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+
+# OS
+.DS_Store
+
+# Tests
+/coverage
+/.nyc_output
+
+# IDEs and editors
+/.idea
+.project
+.classpath
+.c9/
+*.launch
+.settings/
+*.sublime-workspace
+
+# IDE - VSCode
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+
+# dotenv environment variable files
+.env
+.env.development.local
+.env.test.local
+.env.production.local
+.env.local
+
+# temp directory
+.temp
+.tmp
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json

packages/server-nest/.prettierrc

@@ -0,0 +1,4 @@
+{
+  "singleQuote": true,
+  "trailingComma": "all"
+}

packages/server-nest/.todo

@@ -0,0 +1 @@
+- Build authentication services.

packages/server-nest/README.md

@@ -0,0 +1 @@
+## @bigcapitalhq/server

packages/server-nest/nest-cli.json

@@ -0,0 +1,11 @@
+{
+  "$schema": "https://json.schemastore.org/nest-cli",
+  "collection": "@nestjs/schematics",
+  "sourceRoot": "src",
+  "compilerOptions": {
+    "deleteOutDir": true,
+    "assets": [
+      { "include": "i18n/**/*", "watchAssets": true }
+    ]
+  }
+}

packages/server-nest/package.json

@@ -0,0 +1,127 @@
+{
+  "name": "@bigcapital/server2",
+  "version": "0.0.1",
+  "description": "",
+  "author": "",
+  "private": true,
+  "license": "UNLICENSED",
+  "scripts": {
+    "build": "nest build",
+    "format": "prettier --write \"src/**/*.ts\" \"test/**/*.ts\"",
+    "start": "nest start",
+    "start:dev": "nest start --watch",
+    "start:debug": "nest start --debug --watch",
+    "start:prod": "node dist/main",
+    "lint": "eslint \"{src,apps,libs,test}/**/*.ts\" --fix",
+    "test": "jest",
+    "test:watch": "jest --watch",
+    "test:cov": "jest --coverage",
+    "test:debug": "node --inspect-brk -r tsconfig-paths/register -r ts-node/register node_modules/.bin/jest --runInBand",
+    "test:e2e": "jest --config ./test/jest-e2e.json --watchAll"
+  },
+  "dependencies": {
+    "@bigcapital/email-components": "*",
+    "@bigcapital/pdf-templates": "*",
+    "@bigcapital/utils": "*",
+    "@nestjs/bull": "^10.2.1",
+    "@nestjs/bullmq": "^10.2.1",
+    "@nestjs/cache-manager": "^2.2.2",
+    "@nestjs/common": "^10.0.0",
+    "@nestjs/config": "^3.2.3",
+    "@nestjs/core": "^10.0.0",
+    "@nestjs/event-emitter": "^2.0.4",
+    "@nestjs/jwt": "^10.2.0",
+    "@nestjs/passport": "^10.0.3",
+    "@nestjs/platform-express": "^10.0.0",
+    "@nestjs/swagger": "^7.4.2",
+    "@nestjs/throttler": "^6.2.1",
+    "@supercharge/promise-pool": "^3.2.0",
+    "@types/nodemailer": "^6.4.17",
+    "@types/passport-local": "^1.0.38",
+    "@types/ramda": "^0.30.2",
+    "accounting": "^0.4.1",
+    "async": "^3.2.0",
+    "axios": "^1.6.0",
+    "bluebird": "^3.7.2",
+    "bull": "^4.16.3",
+    "bullmq": "^5.21.1",
+    "cache-manager": "^6.1.1",
+    "cache-manager-redis-store": "^3.0.1",
+    "class-transformer": "^0.5.1",
+    "class-validator": "^0.14.1",
+    "express-validator": "^7.2.0",
+    "form-data": "^4.0.0",
+    "fp-ts": "^2.16.9",
+    "is-my-json-valid": "^2.20.5",
+    "js-money": "^0.6.3",
+    "knex": "^3.1.0",
+    "lamda": "^0.4.1",
+    "lodash": "^4.17.21",
+    "moment": "^2.30.1",
+    "mysql": "^2.18.1",
+    "mysql2": "^3.11.3",
+    "nestjs-cls": "^4.4.1",
+    "nestjs-i18n": "^10.4.9",
+    "nodemailer": "^6.3.0",
+    "object-hash": "^2.0.3",
+    "objection": "^3.1.5",
+    "passport": "^0.7.0",
+    "passport-jwt": "^4.0.1",
+    "passport-local": "^1.0.0",
+    "plaid": "^10.3.0",
+    "pluralize": "^8.0.0",
+    "posthog-node": "^4.3.2",
+    "pug": "^3.0.2",
+    "ramda": "^0.30.1",
+    "redis": "^4.7.0",
+    "reflect-metadata": "^0.2.0",
+    "rxjs": "^7.8.1",
+    "serialize-interceptor": "^1.1.7",
+    "strategy": "^1.1.1",
+    "uniqid": "^5.2.0",
+    "uuid": "^10.0.0",
+    "yup": "^0.28.1",
+    "zod": "^3.23.8"
+  },
+  "devDependencies": {
+    "@nestjs/cli": "^10.0.0",
+    "@nestjs/schematics": "^10.0.0",
+    "@nestjs/testing": "^10.0.0",
+    "@types/express": "^5.0.0",
+    "@types/jest": "^29.5.2",
+    "@types/node": "^20.3.1",
+    "@types/supertest": "^6.0.0",
+    "@types/yup": "^0.29.13",
+    "@typescript-eslint/eslint-plugin": "^8.0.0",
+    "@typescript-eslint/parser": "^8.0.0",
+    "eslint": "^9.0.0",
+    "eslint-config-prettier": "^9.0.0",
+    "eslint-plugin-prettier": "^5.0.0",
+    "jest": "^29.5.0",
+    "prettier": "^3.0.0",
+    "source-map-support": "^0.5.21",
+    "supertest": "^7.0.0",
+    "ts-jest": "^29.1.0",
+    "ts-loader": "^9.4.3",
+    "ts-node": "^10.9.1",
+    "tsconfig-paths": "^4.2.0",
+    "typescript": "^5.1.3"
+  },
+  "jest": {
+    "moduleFileExtensions": [
+      "js",
+      "json",
+      "ts"
+    ],
+    "rootDir": "src",
+    "testRegex": ".*\\.spec\\.ts$",
+    "transform": {
+      "^.+\\.(t|j)s$": "ts-jest"
+    },
+    "collectCoverageFrom": [
+      "**/*.(t|j)s"
+    ],
+    "coverageDirectory": "../coverage",
+    "testEnvironment": "node"
+  }
+}

packages/server-nest/src/common/config/gotenberg.ts

@@ -0,0 +1,6 @@
+import { registerAs } from '@nestjs/config';
+
+export default registerAs('gotenberg', () => ({
+  url: process.env.GOTENBERG_URL,
+  docsUrl: process.env.GOTENBERG_DOCS_URL,
+}));

packages/server-nest/src/common/config/index.ts

@@ -0,0 +1,21 @@
+import systemDatabase from './system-database';
+import tenantDatabase from './tenant-database';
+import signup from './signup';
+import gotenberg from './gotenberg';
+import plaid from './plaid';
+import lemonsqueezy from './lemonsqueezy';
+import s3 from './s3';
+import openExchange from './open-exchange';
+import posthog from './posthog';
+
+export const config = [
+  systemDatabase,
+  tenantDatabase,
+  signup,
+  gotenberg,
+  plaid,
+  lemonsqueezy,
+  s3,
+  openExchange,
+  posthog,
+];

packages/server-nest/src/common/config/lemonsqueezy.ts

@@ -0,0 +1,7 @@
+import { registerAs } from '@nestjs/config';
+
+export default registerAs('lemonsqueezy', () => ({
+  apiKey: process.env.LEMONSQUEEZY_API_KEY,
+  storeId: process.env.LEMONSQUEEZY_STORE_ID,
+  webhookSecret: process.env.LEMONSQUEEZY_WEBHOOK_SECRET,
+}));

packages/server-nest/src/common/config/open-exchange.ts

@@ -0,0 +1,5 @@
+import { registerAs } from '@nestjs/config';
+
+export default registerAs('openExchange', () => ({
+  appId: process.env.OPEN_EXCHANGE_RATE_APP_ID,
+}));

packages/server-nest/src/common/config/plaid.ts

@@ -0,0 +1,8 @@
+import { registerAs } from '@nestjs/config';
+
+export default registerAs('plaid', () => ({
+  env: process.env.PLAID_ENV || 'sandbox',
+  clientId: process.env.PLAID_CLIENT_ID,
+  secret: process.env.PLAID_SECRET,
+  linkWebhook: process.env.PLAID_LINK_WEBHOOK,
+}));

packages/server-nest/src/common/config/posthog.ts

@@ -0,0 +1,6 @@
+import { registerAs } from '@nestjs/config';
+
+export default registerAs('posthog', () => ({
+  apiKey: process.env.POSTHOG_API_KEY,
+  host: process.env.POSTHOG_HOST || 'https://us.i.posthog.com',
+}));

packages/server-nest/src/common/config/s3.ts

@@ -0,0 +1,9 @@
+import { registerAs } from '@nestjs/config';
+
+export default registerAs('s3', () => ({
+  region: process.env.S3_REGION || 'US',
+  accessKeyId: process.env.S3_ACCESS_KEY_ID,
+  secretAccessKey: process.env.S3_SECRET_ACCESS_KEY,
+  endpoint: process.env.S3_ENDPOINT,
+  bucket: process.env.S3_BUCKET,
+}));

packages/server-nest/src/common/config/signup.ts

@@ -0,0 +1,12 @@
+import { registerAs } from '@nestjs/config';
+
+export default registerAs('signup', () => ({
+  disabled: process.env.SIGNUP_DISABLED === 'true',
+  allowedDomains: process.env.SIGNUP_ALLOWED_DOMAINS
+    ? process.env.SIGNUP_ALLOWED_DOMAINS.split(',')
+    : [],
+  allowedEmails: process.env.SIGNUP_ALLOWED_EMAILS
+    ? process.env.SIGNUP_ALLOWED_EMAILS.split(',')
+    : [],
+  emailConfirmation: process.env.SIGNUP_EMAIL_CONFIRMATION === 'true',
+}));

packages/server-nest/src/common/config/stripe-payment.ts

@@ -0,0 +1,9 @@
+import { registerAs } from '@nestjs/config';
+
+export default registerAs('stripePayment', () => ({
+  secretKey: process.env.STRIPE_PAYMENT_SECRET_KEY,
+  publishableKey: process.env.STRIPE_PAYMENT_PUBLISHABLE_KEY,
+  clientId: process.env.STRIPE_PAYMENT_CLIENT_ID,
+  webhooksSecret: process.env.STRIPE_PAYMENT_WEBHOOKS_SECRET,
+  redirectUrl: process.env.STRIPE_PAYMENT_REDIRECT_URL,
+}));

packages/server-nest/src/common/config/system-database.ts

@@ -0,0 +1,10 @@
+import { registerAs } from '@nestjs/config';
+
+export default registerAs('systemDatabase', () => ({
+  client: 'mysql',
+  host: process.env.SYSTEM_DB_HOST || process.env.DB_HOST,
+  port: process.env.SYSTEM_DB_PORT || process.env.DB_PORT || 5432,
+  user: process.env.SYSTEM_DB_USER || process.env.DB_USER,
+  password: process.env.SYSTEM_DB_PASSWORD || process.env.DB_PASSWORD,
+  databaseName: process.env.SYSTEM_DB_NAME || process.env.DB_NAME,
+}));

packages/server-nest/src/common/config/tenant-database.ts

@@ -0,0 +1,9 @@
+import { registerAs } from '@nestjs/config';
+
+export default registerAs('tenantDatabase', () => ({
+  client: 'mysql',
+  host: process.env.TENANT_DB_HOST || process.env.DB_HOST,
+  port: process.env.TENANT_DB_PORT || process.env.DB_PORT || 5432,
+  user: process.env.TENANT_DB_USER || process.env.DB_USER,
+  password: process.env.TENANT_DB_PASSWORD || process.env.DB_PASSWORD,
+}));

packages/server-nest/src/common/events/events.ts

@@ -0,0 +1,756 @@
+export const events = {
+  /**
+   * Authentication service.
+   */
+  auth: {
+    signIn: 'onSignIn',
+    signingIn: 'onSigningIn',
+
+    signUp: 'onSignUp',
+    signingUp: 'onSigningUp',
+
+    signUpConfirming: 'signUpConfirming',
+    signUpConfirmed: 'signUpConfirmed',
+
+    sendingResetPassword: 'onSendingResetPassword',
+    sendResetPassword: 'onSendResetPassword',
+
+    resetPassword: 'onResetPassword',
+    resetingPassword: 'onResetingPassword',
+  },
+
+  /**
+   * Invite users service.
+   */
+  inviteUser: {
+    acceptInvite: 'onUserAcceptInvite',
+    sendInvite: 'onUserSendInvite',
+    resendInvite: 'onUserInviteResend',
+    checkInvite: 'onUserCheckInvite',
+    sendInviteTenantSynced: 'onUserSendInviteTenantSynced',
+  },
+
+  /**
+   * Organization managment service.
+   */
+  organization: {
+    build: 'onOrganizationBuild',
+    built: 'onOrganizationBuilt',
+
+    seeded: 'onOrganizationSeeded',
+
+    baseCurrencyUpdated: 'onOrganizationBaseCurrencyUpdated',
+  },
+
+  /**
+   * Organization subscription.
+   */
+  subscription: {
+    onSubscriptionCancel: 'onSubscriptionCancel',
+    onSubscriptionCancelled: 'onSubscriptionCancelled',
+
+    onSubscriptionResume: 'onSubscriptionResume',
+    onSubscriptionResumed: 'onSubscriptionResumed',
+
+    onSubscriptionPlanChange: 'onSubscriptionPlanChange',
+    onSubscriptionPlanChanged: 'onSubscriptionPlanChanged',
+
+    onSubscriptionSubscribed: 'onSubscriptionSubscribed',
+
+    onSubscriptionPaymentSucceed: 'onSubscriptionPaymentSucceed',
+    onSubscriptionPaymentFailed: 'onSubscriptionPaymentFailed',
+  },
+
+  /**
+   * Tenants managment service.
+   */
+  tenantManager: {
+    databaseCreated: 'onDatabaseCreated',
+    tenantMigrated: 'onTenantMigrated',
+    tenantSeeded: 'onTenantSeeded',
+  },
+
+  /**
+   * Accounts service.
+   */
+  accounts: {
+    onViewed: 'onAccountViewed',
+    onListViewed: 'onAccountsListViewed',
+
+    onCreating: 'onAccountCreating',
+    onCreated: 'onAccountCreated',
+
+    onEditing: 'onAccountEditing',
+    onEdited: 'onAccountEdited',
+
+    onDelete: 'onAccountDelete',
+    onDeleted: 'onAccountDeleted',
+
+    onBulkDeleted: 'onBulkDeleted',
+    onBulkActivated: 'onAccountBulkActivated',
+
+    onActivated: 'onAccountActivated',
+  },
+
+  /**
+   * Manual journals service.
+   */
+  manualJournals: {
+    onCreating: 'onManualJournalCreating',
+    onCreated: 'onManualJournalCreated',
+
+    onEditing: 'onManualJournalEditing',
+    onEdited: 'onManualJournalEdited',
+
+    onDeleting: 'onManualJournalDeleting',
+    onDeleted: 'onManualJournalDeleted',
+
+    onPublished: 'onManualJournalPublished',
+    onPublishing: 'onManualJournalPublishing',
+  },
+
+  /**
+   * Expenses service.
+   */
+  expenses: {
+    onCreating: 'onExpenseCreating',
+    onCreated: 'onExpenseCreated',
+
+    onEditing: 'onExpenseEditing',
+    onEdited: 'onExpenseEdited',
+
+    onDeleting: 'onExpenseDeleting',
+    onDeleted: 'onExpenseDeleted',
+
+    onPublishing: 'onExpensePublishing',
+    onPublished: 'onExpensePublished',
+  },
+
+  /**
+   * Sales invoices service.
+   */
+  saleInvoice: {
+    onViewed: 'onSaleInvoiceItemViewed',
+    onListViewed: 'onSaleInvoiceListViewed',
+
+    onPdfViewed: 'onSaleInvoicePdfViewed',
+
+    onCreate: 'onSaleInvoiceCreate',
+    onCreating: 'onSaleInvoiceCreating',
+    onCreated: 'onSaleInvoiceCreated',
+
+    onEdit: 'onSaleInvoiceEdit',
+    onEditing: 'onSaleInvoiceEditing',
+    onEdited: 'onSaleInvoiceEdited',
+
+    onDelete: 'onSaleInvoiceDelete',
+    onDeleting: 'onSaleInvoiceDeleting',
+    onDeleted: 'onSaleInvoiceDeleted',
+
+    onDelivering: 'onSaleInvoiceDelivering',
+    onDeliver: 'onSaleInvoiceDeliver',
+    onDelivered: 'onSaleInvoiceDelivered',
+
+    onPublish: 'onSaleInvoicePublish',
+    onPublished: 'onSaleInvoicePublished',
+
+    onWriteoff: 'onSaleInvoiceWriteoff',
+    onWrittenoff: 'onSaleInvoiceWrittenoff',
+    onWrittenoffCancel: 'onSaleInvoiceWrittenoffCancel',
+    onWrittenoffCanceled: 'onSaleInvoiceWrittenoffCanceled',
+
+    onNotifySms: 'onSaleInvoiceNotifySms',
+    onNotifiedSms: 'onSaleInvoiceNotifiedSms',
+
+    onNotifyMail: 'onSaleInvoiceNotifyMail',
+    onNotifyReminderMail: 'onSaleInvoiceNotifyReminderMail',
+
+    onPreMailSend: 'onSaleInvoicePreMailSend',
+    onMailSend: 'onSaleInvoiceMailSend',
+    onMailSent: 'onSaleInvoiceMailSent',
+
+    onMailReminderSend: 'onSaleInvoiceMailReminderSend',
+    onMailReminderSent: 'onSaleInvoiceMailReminderSent',
+
+    onPublicLinkGenerating: 'onPublicSharableLinkGenerating',
+    onPublicLinkGenerated: 'onPublicSharableLinkGenerated',
+  },
+
+  /**
+   * Sales estimates service.
+   */
+  saleEstimate: {
+    onPdfViewed: 'onSaleEstimatePdfViewed',
+
+    onCreating: 'onSaleEstimateCreating',
+    onCreated: 'onSaleEstimateCreated',
+
+    onEditing: 'onSaleEstimateEditing',
+    onEdited: 'onSaleEstimateEdited',
+
+    onDeleting: 'onSaleEstimatedDeleting',
+    onDeleted: 'onSaleEstimatedDeleted',
+
+    onPublishing: 'onSaleEstimatedPublishing',
+    onPublished: 'onSaleEstimatedPublished',
+
+    onNotifySms: 'onSaleEstimateNotifySms',
+    onNotifiedSms: 'onSaleEstimateNotifiedSms',
+
+    onDelivering: 'onSaleEstimateDelivering',
+    onDelivered: 'onSaleEstimateDelivered',
+
+    onConvertedToInvoice: 'onSaleEstimateConvertedToInvoice',
+
+    onApproving: 'onSaleEstimateApproving',
+    onApproved: 'onSaleEstimateApproved',
+
+    onRejecting: 'onSaleEstimateRejecting',
+    onRejected: 'onSaleEstimateRejected',
+
+    onNotifyMail: 'onSaleEstimateNotifyMail',
+
+    onPreMailSend: 'onSaleEstimatePreMailSend',
+    onMailSend: 'onSaleEstimateMailSend',
+    onMailSent: 'onSaleEstimateMailSend',
+
+    onViewed: 'onSaleEstimateViewed',
+  },
+
+  /**
+   * Sales receipts service.
+   */
+  saleReceipt: {
+    onPdfViewed: 'onSaleReceiptPdfViewed',
+
+    onCreating: 'onSaleReceiptsCreating',
+    onCreated: 'onSaleReceiptsCreated',
+
+    onEditing: 'onSaleReceiptsEditing',
+    onEdited: 'onSaleReceiptsEdited',
+
+    onDeleting: 'onSaleReceiptsDeleting',
+    onDeleted: 'onSaleReceiptsDeleted',
+
+    onPublishing: 'onSaleReceiptPublishing',
+    onPublished: 'onSaleReceiptPublished',
+
+    onClosed: 'onSaleReceiptClosed',
+    onClosing: 'onSaleReceiptClosing',
+
+    onNotifySms: 'onSaleReceiptNotifySms',
+    onNotifiedSms: 'onSaleReceiptNotifiedSms',
+
+    onPreMailSend: 'onSaleReceiptPreMailSend',
+    onMailSend: 'onSaleReceiptMailSend',
+    onMailSent: 'onSaleReceiptMailSent',
+  },
+
+  /**
+   * Payment receipts service.
+   */
+  paymentReceive: {
+    onPdfViewed: 'onPaymentReceivedPdfViewed',
+
+    onCreated: 'onPaymentReceiveCreated',
+    onCreating: 'onPaymentReceiveCreating',
+
+    onEditing: 'onPaymentReceiveEditing',
+    onEdited: 'onPaymentReceiveEdited',
+
+    onDeleting: 'onPaymentReceiveDeleting',
+    onDeleted: 'onPaymentReceiveDeleted',
+
+    onPublishing: 'onPaymentReceivePublishing',
+    onPublished: 'onPaymentReceivePublished',
+
+    onNotifySms: 'onPaymentReceiveNotifySms',
+    onNotifiedSms: 'onPaymentReceiveNotifiedSms',
+
+    onPreMailSend: 'onPaymentReceivePreMailSend',
+    onMailSend: 'onPaymentReceiveMailSend',
+    onMailSent: 'onPaymentReceiveMailSent',
+  },
+
+  /**
+   * Bills service.
+   */
+  bill: {
+    onCreating: 'onBillCreating',
+    onCreated: 'onBillCreated',
+
+    onEditing: 'onBillEditing',
+    onEdited: 'onBillEdited',
+
+    onDeleting: 'onBillDeleting',
+    onDeleted: 'onBillDeleted',
+
+    onPublishing: 'onBillPublishing',
+    onPublished: 'onBillPublished',
+
+    onOpening: 'onBillOpening',
+    onOpened: 'onBillOpened',
+  },
+
+  /**
+   * Bill payments service.
+   */
+  billPayment: {
+    onCreating: 'onBillPaymentCreating',
+    onCreated: 'onBillPaymentCreated',
+
+    onEditing: 'onBillPaymentEditing',
+    onEdited: 'onBillPaymentEdited',
+
+    onDeleted: 'onBillPaymentDeleted',
+    onDeleting: 'onBillPaymentDeleting',
+
+    onPublishing: 'onBillPaymentPublishing',
+    onPublished: 'onBillPaymentPublished',
+  },
+
+  /**
+   * Customers services.
+   */
+  customers: {
+    onCreating: 'onCustomerCreating',
+    onCreated: 'onCustomerCreated',
+
+    onEdited: 'onCustomerEdited',
+    onEditing: 'onCustomerEditing',
+
+    onDeleted: 'onCustomerDeleted',
+    onDeleting: 'onCustomerDeleting',
+    onBulkDeleted: 'onBulkDeleted',
+
+    onOpeningBalanceChanging: 'onCustomerOpeningBalanceChanging',
+    onOpeningBalanceChanged: 'onCustomerOpeingBalanceChanged',
+
+    onActivating: 'onCustomerActivating',
+    onActivated: 'onCustomerActivated',
+  },
+
+  /**
+   * Vendors services.
+   */
+  vendors: {
+    onCreated: 'onVendorCreated',
+    onCreating: 'onVendorCreating',
+
+    onEdited: 'onVendorEdited',
+    onEditing: 'onVendorEditing',
+
+    onDeleted: 'onVendorDeleted',
+    onDeleting: 'onVendorDeleting',
+
+    onOpeningBalanceChanging: 'onVendorOpeingBalanceChanging',
+    onOpeningBalanceChanged: 'onVendorOpeingBalanceChanged',
+
+    onActivating: 'onVendorActivating',
+    onActivated: 'onVendorActivated',
+  },
+
+  /**
+   * Items service.
+   */
+  item: {
+    onViewed: 'onItemViewed',
+
+    onCreated: 'onItemCreated',
+    onCreating: 'onItemCreating',
+
+    onEditing: 'onItemEditing',
+    onEdited: 'onItemEdited',
+
+    onDeleted: 'onItemDeleted',
+    onDeleting: 'onItemDeleting',
+
+    onActivating: 'onItemActivating',
+    onActivated: 'onItemActivated',
+
+    onInactivating: 'onInactivating',
+    onInactivated: 'onItemInactivated',
+  },
+
+  /**
+   * Item category service.
+   */
+  itemCategory: {
+    onCreated: 'onItemCategoryCreated',
+    onEdited: 'onItemCategoryEdited',
+    onDeleted: 'onItemCategoryDeleted',
+    onBulkDeleted: 'onItemCategoryBulkDeleted',
+  },
+
+  /**
+   * Inventory service.
+   */
+  inventory: {
+    onInventoryTransactionsCreated: 'onInventoryTransactionsCreated',
+    onInventoryTransactionsDeleted: 'onInventoryTransactionsDeleted',
+
+    onComputeItemCostJobScheduled: 'onComputeItemCostJobScheduled',
+    onComputeItemCostJobStarted: 'onComputeItemCostJobStarted',
+    onComputeItemCostJobCompleted: 'onComputeItemCostJobCompleted',
+
+    onInventoryCostEntriesWritten: 'onInventoryCostEntriesWritten',
+
+    onCostLotsGLEntriesBeforeWrite: 'onInventoryCostLotsGLEntriesBeforeWrite',
+    onCostLotsGLEntriesWrite: 'onInventoryCostLotsGLEntriesWrite',
+  },
+
+  /**
+   * Inventory adjustment service.
+   */
+  inventoryAdjustment: {
+    onQuickCreating: 'onInventoryAdjustmentCreating',
+    onQuickCreated: 'onInventoryAdjustmentQuickCreated',
+
+    onCreated: 'onInventoryAdjustmentCreated',
+
+    onDeleting: 'onInventoryAdjustmentDeleting',
+    onDeleted: 'onInventoryAdjustmentDeleted',
+
+    onPublishing: 'onInventoryAdjustmentPublishing',
+    onPublished: 'onInventoryAdjustmentPublished',
+  },
+
+  /**
+   * Bill landed cost.
+   */
+  billLandedCost: {
+    onCreate: 'onBillLandedCostCreate',
+    onCreated: 'onBillLandedCostCreated',
+    onDelete: 'onBillLandedCostDelete',
+    onDeleted: 'onBillLandedCostDeleted',
+  },
+
+  cashflow: {
+    onOwnerContributionCreate: 'onCashflowOwnerContributionCreate',
+    onOwnerContributionCreated: 'onCashflowOwnerContributionCreated',
+
+    onOtherIncomeCreate: 'onCashflowOtherIncomeCreate',
+    onOtherIncomeCreated: 'onCashflowOtherIncomeCreated',
+
+    onTransactionCreating: 'onCashflowTransactionCreating',
+    onTransactionCreated: 'onCashflowTransactionCreated',
+
+    onTransactionDeleting: 'onCashflowTransactionDeleting',
+    onTransactionDeleted: 'onCashflowTransactionDeleted',
+
+    onTransactionCategorizing: 'onTransactionCategorizing',
+    onTransactionCategorized: 'onCashflowTransactionCategorized',
+
+    onTransactionUncategorizedCreating: 'onTransactionUncategorizedCreating',
+    onTransactionUncategorizedCreated: 'onTransactionUncategorizedCreated',
+
+    onTransactionUncategorizing: 'onTransactionUncategorizing',
+    onTransactionUncategorized: 'onTransactionUncategorized',
+
+    onTransactionCategorizingAsExpense: 'onTransactionCategorizingAsExpense',
+    onTransactionCategorizedAsExpense: 'onTransactionCategorizedAsExpense',
+  },
+
+  /**
+   * Roles service events.
+   */
+  roles: {
+    onCreate: 'onRoleCreate',
+    onCreated: 'onRoleCreated',
+    onEdit: 'onRoleEdit',
+    onEdited: 'onRoleEdited',
+    onDelete: 'onRoleDelete',
+    onDeleted: 'onRoleDeleted',
+  },
+
+  tenantUser: {
+    onEdited: 'onTenantUserEdited',
+    onDeleted: 'onTenantUserDeleted',
+    onActivated: 'onTenantUserActivated',
+    onInactivated: 'onTenantUserInactivated',
+  },
+
+  /**
+   * Credit note service.
+   */
+  creditNote: {
+    onPdfViewed: 'onCreditNotePdfViewed',
+
+    onCreate: 'onCreditNoteCreate',
+    onCreating: 'onCreditNoteCreating',
+    onCreated: 'onCreditNoteCreated',
+
+    onEditing: 'onCreditNoteEditing',
+    onEdit: 'onCreditNoteEdit',
+    onEdited: 'onCreditNoteEdited',
+
+    onDelete: 'onCreditNoteDelete',
+    onDeleting: 'onCreditNoteDeleting',
+    onDeleted: 'onCreditNoteDeleted',
+
+    onOpen: 'onCreditNoteOpen',
+    onOpening: 'onCreditNoteOpening',
+    onOpened: 'onCreditNoteOpened',
+
+    onRefundCreate: 'onCreditNoteRefundCreate',
+    onRefundCreating: 'onCreditNoteRefundCreating',
+    onRefundCreated: 'onCreditNoteRefundCreated',
+
+    onRefundDelete: 'onCreditNoteRefundDelete',
+    onRefundDeleting: 'onCreditNoteRefundDeleting',
+    onRefundDeleted: 'onCreditNoteRefundDeleted',
+
+    onApplyToInvoicesCreated: 'onCreditNoteApplyToInvoiceCreated',
+    onApplyToInvoicesCreate: 'onCreditNoteApplyToInvoiceCreate',
+    onApplyToInvoicesDeleted: 'onCreditNoteApplyToInvoiceDeleted',
+  },
+
+  /**
+   * Vendor credit service.
+   */
+  vendorCredit: {
+    onCreate: 'onVendorCreditCreate',
+    onCreating: 'onVendorCreditCreating',
+    onCreated: 'onVendorCreditCreated',
+
+    onEdit: 'onVendorCreditEdit',
+    onEditing: 'onVendorCreditEditing',
+    onEdited: 'onVendorCreditEdited',
+
+    onDelete: 'onVendorCreditDelete',
+    onDeleting: 'onVendorCreditDeleting',
+    onDeleted: 'onVendorCreditDeleted',
+
+    onOpen: 'onVendorCreditOpen',
+    onOpened: 'onVendorCreditOpened',
+
+    onRefundCreating: 'onVendorCreditRefundCreating',
+    onRefundCreate: 'onVendorCreditRefundCreate',
+    onRefundCreated: 'onVendorCreditRefundCreated',
+
+    onRefundDelete: 'onVendorCreditRefundDelete',
+    onRefundDeleting: 'onVendorCreditRefundDeleting',
+    onRefundDeleted: 'onVendorCreditRefundDeleted',
+
+    onApplyToInvoicesCreated: 'onVendorCreditApplyToInvoiceCreated',
+    onApplyToInvoicesCreate: 'onVendorCreditApplyToInvoiceCreate',
+    onApplyToInvoicesDeleted: 'onVendorCreditApplyToInvoiceDeleted',
+  },
+
+  transactionsLocking: {
+    locked: 'onTransactionLockingLocked',
+    lockCanceled: 'onTransactionLockingLockCanceled',
+    partialUnlocked: 'onTransactionLockingPartialUnlocked',
+    partialUnlockCanceled: 'onTransactionLockingPartialUnlockCanceled',
+  },
+
+  warehouse: {
+    onCreate: 'onWarehouseCreate',
+    onCreated: 'onWarehouseCreated',
+
+    onEdit: 'onWarehouseEdit',
+    onEdited: 'onWarehouseEdited',
+
+    onDelete: 'onWarehouseDelete',
+    onDeleted: 'onWarehouseDeleted',
+
+    onActivate: 'onWarehouseActivate',
+    onActivated: 'onWarehouseActivated',
+
+    onMarkPrimary: 'onWarehouseMarkPrimary',
+    onMarkedPrimary: 'onWarehouseMarkedPrimary',
+  },
+
+  warehouseTransfer: {
+    onCreate: 'onWarehouseTransferCreate',
+    onCreated: 'onWarehouseTransferCreated',
+
+    onEdit: 'onWarehouseTransferEdit',
+    onEdited: 'onWarehouseTransferEdited',
+
+    onDelete: 'onWarehouseTransferDelete',
+    onDeleted: 'onWarehouseTransferDeleted',
+
+    onInitiate: 'onWarehouseTransferInitiate',
+    onInitiated: 'onWarehouseTransferInitated',
+
+    onTransfer: 'onWarehouseTransferInitiate',
+    onTransferred: 'onWarehouseTransferTransferred',
+  },
+
+  /**
+   * Branches.
+   */
+  branch: {
+    onActivate: 'onBranchActivate',
+    onActivated: 'onBranchActivated',
+
+    onMarkPrimary: 'onBranchMarkPrimary',
+    onMarkedPrimary: 'onBranchMarkedPrimary',
+  },
+
+  /**
+   * Projects.
+   */
+  project: {
+    onCreate: 'onProjectCreate',
+    onCreating: 'onProjectCreating',
+    onCreated: 'onProjectCreated',
+
+    onEdit: 'onEditProject',
+    onEditing: 'onEditingProject',
+    onEdited: 'onEditedProject',
+
+    onEditStatus: 'onEditStatusProject',
+    onEditingStatus: 'onEditingStatusProject',
+    onEditedStatus: 'onEditedStatusProject',
+
+    onDelete: 'onDeleteProject',
+    onDeleting: 'onDeletingProject',
+    onDeleted: 'onDeletedProject',
+  },
+
+  /**
+   * Project Tasks.
+   */
+  projectTask: {
+    onCreate: 'onProjectTaskCreate',
+    onCreating: 'onProjectTaskCreating',
+    onCreated: 'onProjectTaskCreated',
+
+    onEdit: 'onProjectTaskEdit',
+    onEditing: 'onProjectTaskEditing',
+    onEdited: 'onProjectTaskEdited',
+
+    onDelete: 'onProjectTaskDelete',
+    onDeleting: 'onProjectTaskDeleting',
+    onDeleted: 'onProjectTaskDeleted',
+  },
+
+  /**
+   * Project Times.
+   */
+  projectTime: {
+    onCreate: 'onProjectTimeCreate',
+    onCreating: 'onProjectTimeCreating',
+    onCreated: 'onProjectTimeCreated',
+
+    onEdit: 'onProjectTimeEdit',
+    onEditing: 'onProjectTimeEditing',
+    onEdited: 'onProjectTimeEdited',
+
+    onDelete: 'onProjectTimeDelete',
+    onDeleting: 'onProjectTimeDeleting',
+    onDeleted: 'onProjectTimeDeleted',
+  },
+
+  taxRates: {
+    onCreating: 'onTaxRateCreating',
+    onCreated: 'onTaxRateCreated',
+
+    onEditing: 'onTaxRateEditing',
+    onEdited: 'onTaxRateEdited',
+
+    onDeleting: 'onTaxRateDeleting',
+    onDeleted: 'onTaxRateDeleted',
+
+    onActivating: 'onTaxRateActivating',
+    onActivated: 'onTaxRateActivated',
+
+    onInactivating: 'onTaxRateInactivating',
+    onInactivated: 'onTaxRateInactivated',
+  },
+
+  plaid: {
+    onItemCreated: 'onPlaidItemCreated',
+    onTransactionsSynced: 'onPlaidTransactionsSynced',
+  },
+
+  // Bank rules.
+  bankRules: {
+    onCreating: 'onBankRuleCreating',
+    onCreated: 'onBankRuleCreated',
+
+    onEditing: 'onBankRuleEditing',
+    onEdited: 'onBankRuleEdited',
+
+    onDeleting: 'onBankRuleDeleting',
+    onDeleted: 'onBankRuleDeleted',
+  },
+
+  // Bank matching.
+  bankMatch: {
+    onMatching: 'onBankTransactionMatching',
+    onMatched: 'onBankTransactionMatched',
+
+    onUnmatching: 'onBankTransactionUnmathcing',
+    onUnmatched: 'onBankTransactionUnmathced',
+  },
+
+  bankTransactions: {
+    onExcluding: 'onBankTransactionExclude',
+    onExcluded: 'onBankTransactionExcluded',
+
+    onUnexcluding: 'onBankTransactionUnexcluding',
+    onUnexcluded: 'onBankTransactionUnexcluded',
+
+    onPendingRemoving: 'onBankTransactionPendingRemoving',
+    onPendingRemoved: 'onBankTransactionPendingRemoved',
+  },
+
+  bankAccount: {
+    onDisconnecting: 'onBankAccountDisconnecting',
+    onDisconnected: 'onBankAccountDisconnected',
+  },
+
+  // Import files.
+  import: {
+    onImportCommitted: 'onImportFileCommitted',
+  },
+
+  // Branding templates
+  pdfTemplate: {
+    onCreating: 'onPdfTemplateCreating',
+    onCreated: 'onPdfTemplateCreated',
+
+    onEditing: 'onPdfTemplateEditing',
+    onEdited: 'onPdfTemplatedEdited',
+
+    onDeleting: 'onPdfTemplateDeleting',
+    onDeleted: 'onPdfTemplateDeleted',
+
+    onAssignedDefault: 'onPdfTemplateAssignedDefault',
+    onAssigningDefault: 'onPdfTemplateAssigningDefault',
+  },
+
+  // Payment method.
+  paymentMethod: {
+    onEditing: 'onPaymentMethodEditing',
+    onEdited: 'onPaymentMethodEdited',
+
+    onDeleted: 'onPaymentMethodDeleted',
+  },
+
+  // Payment methods integrations
+  paymentIntegrationLink: {
+    onPaymentIntegrationLink: 'onPaymentIntegrationLink',
+    onPaymentIntegrationDeleteLink: 'onPaymentIntegrationDeleteLink',
+  },
+
+  // Stripe Payment Integration
+  stripeIntegration: {
+    onAccountCreated: 'onStripeIntegrationAccountCreated',
+    onAccountDeleted: 'onStripeIntegrationAccountDeleted',
+
+    onPaymentLinkCreated: 'onStripePaymentLinkCreated',
+    onPaymentLinkInactivated: 'onStripePaymentLinkInactivated',
+
+    onOAuthCodeGranted: 'onStripeOAuthCodeGranted',
+  },
+
+  // Stripe Payment Webhooks
+  stripeWebhooks: {
+    onCheckoutSessionCompleted: 'onStripeCheckoutSessionCompleted',
+    onAccountUpdated: 'onStripeAccountUpdated',
+  },
+};

packages/server-nest/src/common/exceptions/ModelEntityNotFound.ts

@@ -0,0 +1,6 @@
+export class ModelEntityNotFound extends Error {
+  constructor(entityId, message?) {
+    message = message || `Entity with id ${entityId} does not exist`;
+    super(message);
+  }
+}

packages/server-nest/src/common/filters/service-error.filter.ts

@@ -0,0 +1,24 @@
+import {
+  ExceptionFilter,
+  Catch,
+  ArgumentsHost,
+  HttpStatus,
+} from '@nestjs/common';
+import { Response } from 'express';
+import { ServiceError } from '@/modules/Items/ServiceError';
+
+@Catch(ServiceError)
+export class ServiceErrorFilter implements ExceptionFilter {
+  catch(exception: ServiceError, host: ArgumentsHost) {
+    const ctx = host.switchToHttp();
+    const response = ctx.getResponse<Response>();
+    const status = exception.getStatus();
+
+    response.status(status).json({
+      statusCode: status,
+      errorType: exception.errorType,
+      message: exception.message,
+      payload: exception.payload,
+    });
+  }
+}

packages/server-nest/src/common/interceptors/serialize.interceptor.ts

@@ -0,0 +1,78 @@
+import {
+  type ExecutionContext,
+  Injectable,
+  type NestInterceptor,
+  type CallHandler,
+  Optional,
+} from '@nestjs/common';
+import { type Observable } from 'rxjs';
+import { map } from 'rxjs/operators';
+
+export function camelToSnake<T = any>(value: T) {
+  if (value === null || value === undefined) {
+    return value;
+  }
+  if (Array.isArray(value)) {
+    return value.map(camelToSnake);
+  }
+  if (typeof value === 'object' && !(value instanceof Date)) {
+    return Object.fromEntries(
+      Object.entries(value).map(([key, value]) => [
+        key
+          .split(/(?=[A-Z])/)
+          .join('_')
+          .toLowerCase(),
+        camelToSnake(value),
+      ]),
+    );
+  }
+  return value;
+}
+
+export function snakeToCamel<T = any>(value: T) {
+  if (value === null || value === undefined) {
+    return value;
+  }
+
+  if (Array.isArray(value)) {
+    return value.map(snakeToCamel);
+  }
+
+  const impl = (str: string) => {
+    const converted = str.replace(/([-_]\w)/g, (group) =>
+      group[1].toUpperCase(),
+    );
+    return converted[0].toLowerCase() + converted.slice(1);
+  };
+
+  if (typeof value === 'object' && !(value instanceof Date)) {
+    return Object.fromEntries(
+      Object.entries(value).map(([key, value]) => [
+        impl(key),
+        snakeToCamel(value),
+      ]),
+    );
+  }
+  return value;
+}
+
+export const DEFAULT_STRATEGY = {
+  in: snakeToCamel,
+  out: camelToSnake,
+};
+
+@Injectable()
+export class SerializeInterceptor implements NestInterceptor<any, any> {
+  constructor(@Optional() readonly strategy = DEFAULT_STRATEGY) {}
+
+  intercept(
+    context: ExecutionContext,
+    next: CallHandler<any>,
+  ): Observable<any> {
+    const request = context.switchToHttp().getRequest();
+    request.body = this.strategy.in(request.body);
+
+    // handle returns stream..
+    return next.handle().pipe(map(this.strategy.out));
+  }
+}

packages/server-nest/src/common/pipes/ZodValidation.pipe.ts

@@ -0,0 +1,20 @@
+import {
+  PipeTransform,
+  ArgumentMetadata,
+  BadRequestException,
+} from '@nestjs/common';
+import { ZodSchema } from 'zod';
+
+export class ZodValidationPipe implements PipeTransform {
+  constructor(private schema: ZodSchema) {}
+
+  transform(value: unknown, metadata: ArgumentMetadata) {
+    try {
+      const parsedValue = this.schema.parse(value);
+      return parsedValue;
+    } catch (error) {
+      console.log(error);
+      throw new BadRequestException(error.errors);
+    }
+  }
+}

packages/server-nest/src/common/repository/CachableRepository.ts

@@ -0,0 +1,260 @@
+// import hashObject from 'object-hash';
+// import { EntityRepository } from './EntityRepository';
+
+// export class CachableRepository extends EntityRepository {
+//   repositoryName: string;
+//   cache: any;
+//   i18n: any;
+
+//   /**
+//    * Constructor method.
+//    * @param {Knex} knex
+//    * @param {Cache} cache
+//    */
+//   constructor(knex, cache, i18n) {
+//     super(knex);
+
+//     this.cache = cache;
+//     this.i18n = i18n;
+//     this.repositoryName = this.constructor.name;
+//   }
+
+//   getByCache(key, callback) {
+//     return callback();
+//   }
+
+//   /**
+//    * Retrieve the cache key of the method name and arguments.
+//    * @param {string} method
+//    * @param {...any} args
+//    * @return {string}
+//    */
+//   getCacheKey(method, ...args) {
+//     const hashArgs = hashObject({ ...args });
+//     const repositoryName = this.repositoryName;
+
+//     return `${repositoryName}-${method}-${hashArgs}`;
+//   }
+
+//   /**
+//    * Retrieve all entries with specified relations.
+//    * @param withRelations
+//    */
+//   all(withRelations?, trx?) {
+//     const cacheKey = this.getCacheKey('all', withRelations);
+
+//     return this.getByCache(cacheKey, () => {
+//       return super.all(withRelations, trx);
+//     });
+//   }
+
+//   /**
+//    * Finds list of entities with specified attributes
+//    * @param {Object} attributeValues - values to filter retrieved entities by
+//    * @param {string || string[]} [withRelations] - name of relation(s) to eagerly retrieve.
+//    * @returns {Promise<Object[]>} - query builder. You can chain additional methods to it or call "await" or then() on it to execute
+//    */
+//   find(attributeValues = {}, withRelations?) {
+//     const cacheKey = this.getCacheKey('find', attributeValues, withRelations);
+
+//     return this.getByCache(cacheKey, () => {
+//       return super.find(attributeValues, withRelations);
+//     });
+//   }
+
+//   /**
+//    * Finds list of entities with attribute values that are different from specified ones
+//    * @param {Object} attributeValues - values to filter retrieved entities by
+//    * @param {string || string[]} [withRelations] - name of relation(s) to eagerly retrieve, as defined in model relationMappings()
+//    * @returns {Promise<Object[]>} - query builder. You can chain additional methods to it or call "await" or then() on it to execute
+//    */
+//   findWhereNot(attributeValues = {}, withRelations?) {
+//     const cacheKey = this.getCacheKey(
+//       'findWhereNot',
+//       attributeValues,
+//       withRelations
+//     );
+
+//     return this.getByCache(cacheKey, () => {
+//       return super.findWhereNot(attributeValues, withRelations);
+//     });
+//   }
+
+//   /**
+//    * Finds list of entities with specified attributes (any of multiple specified values)
+//    * Supports both ('attrName', ['value1', 'value2]) and ({attrName: ['value1', 'value2']} formats)
+//    *
+//    * @param {string|Object} searchParam - attribute name or search criteria object
+//    * @param {*[]} [attributeValues] - attribute values to filter retrieved entities by
+//    * @param {string || string[]} [withRelations] - name of relation(s) to eagerly retrieve, as defined in model relationMappings()
+//    * @returns {PromiseLike<Object[]>} - query builder. You can chain additional methods to it or call "await" or then() on it to execute
+//    */
+//   findWhereIn(searchParam, attributeValues, withRelations?) {
+//     const cacheKey = this.getCacheKey(
+//       'findWhereIn',
+//       attributeValues,
+//       withRelations
+//     );
+
+//     return this.getByCache(cacheKey, () => {
+//       return super.findWhereIn(searchParam, attributeValues, withRelations);
+//     });
+//   }
+
+//   /**
+//    * Finds first entity by given parameters
+//    *
+//    * @param {Object} attributeValues - values to filter retrieved entities by
+//    * @param {string || string[]} [withRelations] - name of relation(s) to eagerly retrieve, as defined in model relationMappings()
+//    * @returns {Promise<Object>}
+//    */
+//   findOne(attributeValues = {}, withRelations?) {
+//     const cacheKey = this.getCacheKey(
+//       'findOne',
+//       attributeValues,
+//       withRelations
+//     );
+//     return this.getByCache(cacheKey, () => {
+//       return super.findOne(attributeValues, withRelations);
+//     });
+//   }
+
+//   /**
+//    * Finds first entity by given parameters
+//    *
+//    * @param {string || number} id - value of id column of the entity
+//    * @param {string || string[]} [withRelations] - name of relation(s) to eagerly retrieve, as defined in model relationMappings()
+//    * @returns {Promise<Object>}
+//    */
+//   findOneById(id, withRelations?) {
+//     const cacheKey = this.getCacheKey('findOneById', id, withRelations);
+
+//     return this.getByCache(cacheKey, () => {
+//       return super.findOneById(id, withRelations);
+//     });
+//   }
+
+//   /**
+//    * Persists new entity or an array of entities.
+//    * This method does not recursively persist related entities, use createRecursively (to be implemented) for that.
+//    * Batch insert only works on PostgreSQL
+//    * @param {Object} entity - model instance or parameters for a new entity
+//    * @returns {Promise<Object>} - query builder. You can chain additional methods to it or call "await" or then() on it to execute
+//    */
+//   async create(entity, trx?) {
+//     const result = await super.create(entity, trx);
+
+//     // Flushes the repository cache after insert operation.
+//     this.flushCache();
+
+//     return result;
+//   }
+
+//   /**
+//    * Persists updated entity. If previously set fields are not present, performs an incremental update (does not remove fields unless explicitly set to null)
+//    *
+//    * @param {Object} entity - single entity instance
+//    * @param {Object} [trx] - knex transaction instance. If not specified, new implicit transaction will be used.
+//    * @returns {Promise<integer>} number of affected rows
+//    */
+//   async update(entity, whereAttributes?, trx?) {
+//     const result = await super.update(entity, whereAttributes, trx);
+
+//     // Flushes the repository cache after update operation.
+//     this.flushCache();
+
+//     return result;
+//   }
+
+//   /**
+//    * @param {Object} attributeValues - values to filter deleted entities by
+//    * @param {Object} [trx]
+//    * @returns {Promise<integer>} Query builder. After promise is resolved, returns count of deleted rows
+//    */
+//   async deleteBy(attributeValues, trx?) {
+//     const result = await super.deleteBy(attributeValues, trx);
+//     this.flushCache();
+
+//     return result;
+//   }
+
+//   /**
+//    * @param {string || number} id - value of id column of the entity
+//    * @returns {Promise<integer>} Query builder. After promise is resolved, returns count of deleted rows
+//    */
+//   deleteById(id: number | string, trx?) {
+//     const result = super.deleteById(id, trx);
+
+//     // Flushes the repository cache after insert operation.
+//     this.flushCache();
+
+//     return result;
+//   }
+
+//   /**
+//    *
+//    * @param {string|number[]} values -
+//    */
+//   async deleteWhereIn(field: string, values: string | number[]) {
+//     const result = await super.deleteWhereIn(field, values);
+
+//     // Flushes the repository cache after delete operation.
+//     this.flushCache();
+
+//     return result;
+//   }
+
+//   /**
+//    *
+//    * @param {string|number[]} values
+//    */
+//   async deleteWhereIdIn(values: string | number[], trx?) {
+//     const result = await super.deleteWhereIdIn(values, trx);
+
+//     // Flushes the repository cache after delete operation.
+//     this.flushCache();
+
+//     return result;
+//   }
+
+//   /**
+//    *
+//    * @param graph
+//    * @param options
+//    */
+//   async upsertGraph(graph, options) {
+//     const result = await super.upsertGraph(graph, options);
+
+//     // Flushes the repository cache after insert operation.
+//     this.flushCache();
+
+//     return result;
+//   }
+
+//   /**
+//    *
+//    * @param {} whereAttributes
+//    * @param {string} field
+//    * @param {number} amount
+//    */
+//   async changeNumber(whereAttributes, field: string, amount: number, trx?) {
+//     const result = await super.changeNumber(
+//       whereAttributes,
+//       field,
+//       amount,
+//       trx
+//     );
+
+//     // Flushes the repository cache after update operation.
+//     this.flushCache();
+
+//     return result;
+//   }
+
+//   /**
+//    * Flush repository cache.
+//    */
+//   flushCache(): void {
+//     this.cache.delStartWith(this.repositoryName);
+//   }
+// }

packages/server-nest/src/common/repository/EntityRepository.ts

@@ -0,0 +1,232 @@
+import { cloneDeep, forOwn, isString } from 'lodash';
+import { ModelEntityNotFound } from '../exceptions/ModelEntityNotFound';
+import { Model } from 'objection';
+
+function applyGraphFetched(withRelations, builder) {
+  const relations = Array.isArray(withRelations)
+    ? withRelations
+    : typeof withRelations === 'string'
+      ? withRelations.split(',').map((relation) => relation.trim())
+      : [];
+
+  relations.forEach((relation) => {
+    builder.withGraphFetched(relation);
+  });
+}
+
+export class EntityRepository {
+  idColumn: string = 'id';
+  knex: any;
+
+  /**
+   * Retrieve the repository model binded it to knex instance.
+   */
+  get model(): typeof Model {
+    throw new Error("The repository's model is not defined.");
+  }
+
+  /**
+   * Retrieve all entries with specified relations.
+   * @param withRelations
+   */
+  all(withRelations?, trx?) {
+    const builder = this.model.query(trx);
+    applyGraphFetched(withRelations, builder);
+
+    return builder;
+  }
+
+  /**
+   * Finds list of entities with specified attributes
+   *
+   * @param {Object} attributeValues - values to filter retrieved entities by
+   * @param {string || string[]} [withRelations] - name of relation(s) to eagerly retrieve.
+   * @returns {Promise<Object[]>} - query builder. You can chain additional methods to it or call "await" or then() on it to execute
+   */
+  find(attributeValues = {}, withRelations?) {
+    const builder = this.model.query().where(attributeValues);
+
+    applyGraphFetched(withRelations, builder);
+    return builder;
+  }
+
+  /**
+   * Finds list of entities with attribute values that are different from specified ones
+   *
+   * @param {Object} attributeValues - values to filter retrieved entities by
+   * @param {string || string[]} [withRelations] - name of relation(s) to eagerly retrieve, as defined in model relationMappings()
+   * @returns {PromiseLike<Object[]>} - query builder. You can chain additional methods to it or call "await" or then() on it to execute
+   */
+  findWhereNot(attributeValues = {}, withRelations?) {
+    const builder = this.model.query().whereNot(attributeValues);
+
+    applyGraphFetched(withRelations, builder);
+    return builder;
+  }
+
+  /**
+   * Finds list of entities with specified attributes (any of multiple specified values)
+   * Supports both ('attrName', ['value1', 'value2]) and ({attrName: ['value1', 'value2']} formats)
+   *
+   * @param {string|Object} searchParam - attribute name or search criteria object
+   * @param {*[]} [attributeValues] - attribute values to filter retrieved entities by
+   * @param {string || string[]} [withRelations] - name of relation(s) to eagerly retrieve, as defined in model relationMappings()
+   * @returns {PromiseLike<Object[]>} - query builder. You can chain additional methods to it or call "await" or then() on it to execute
+   */
+  findWhereIn(searchParam, attributeValues, withRelations?) {
+    const commonBuilder = (builder) => {
+      applyGraphFetched(withRelations, builder);
+    };
+    if (isString(searchParam)) {
+      return this.model
+        .query()
+        .whereIn(searchParam, attributeValues)
+        .onBuild(commonBuilder);
+    } else {
+      const builder = this.model.query(this.knex).onBuild(commonBuilder);
+
+      forOwn(searchParam, (value, key) => {
+        if (Array.isArray(value)) {
+          builder.whereIn(key, value);
+        } else {
+          builder.where(key, value);
+        }
+      });
+      return builder;
+    }
+  }
+
+  /**
+   * Finds first entity by given parameters
+   *
+   * @param {Object} attributeValues - values to filter retrieved entities by
+   * @param {string || string[]} [withRelations] - name of relation(s) to eagerly retrieve, as defined in model relationMappings()
+   * @returns {Promise<Object>}
+   */
+  async findOne(attributeValues = {}, withRelations?) {
+    const results = await this.find(attributeValues, withRelations);
+    return results[0] || null;
+  }
+
+  /**
+   * Finds first entity by given parameters
+   *
+   * @param {string || number} id - value of id column of the entity
+   * @param {string || string[]} [withRelations] - name of relation(s) to eagerly retrieve, as defined in model relationMappings()
+   * @returns {Promise<Object>}
+   */
+  findOneById(id, withRelations?) {
+    return this.findOne({ [this.idColumn]: id }, withRelations);
+  }
+
+  /**
+   * Persists new entity or an array of entities.
+   * This method does not recursively persist related entities, use createRecursively (to be implemented) for that.
+   * Batch insert only works on PostgreSQL
+   *
+   * @param {Object} entity - model instance or parameters for a new entity
+   * @returns {Promise<Object>} - query builder. You can chain additional methods to it or call "await" or then() on it to execute
+   */
+  create(entity, trx?) {
+    // Keep the input parameter immutable
+    const instanceDTO = cloneDeep(entity);
+
+    return this.model.query(trx).insert(instanceDTO);
+  }
+
+  /**
+   * Persists updated entity. If previously set fields are not present, performs an incremental update (does not remove fields unless explicitly set to null)
+   *
+   * @param   {Object} entity - single entity instance
+   * @returns {Promise<integer>} number of affected rows
+   */
+  async update(entity, whereAttributes?, trx?) {
+    const entityDto = cloneDeep(entity);
+    const identityClause = {};
+
+    if (Array.isArray(this.idColumn)) {
+      this.idColumn.forEach(
+        (idColumn) => (identityClause[idColumn] = entityDto[idColumn]),
+      );
+    } else {
+      identityClause[this.idColumn] = entityDto[this.idColumn];
+    }
+    const whereConditions = whereAttributes || identityClause;
+    const modifiedEntitiesCount = await this.model
+      .query(trx)
+      .where(whereConditions)
+      .update(entityDto);
+
+    if (modifiedEntitiesCount === 0) {
+      throw new ModelEntityNotFound(entityDto[this.idColumn]);
+    }
+    return modifiedEntitiesCount;
+  }
+
+  /**
+   *
+   * @param {Object} attributeValues - values to filter deleted entities by
+   * @param {Object} [trx]
+   * @returns {Promise<integer>} Query builder. After promise is resolved, returns count of deleted rows
+   */
+  deleteBy(attributeValues, trx?) {
+    return this.model.query(trx).delete().where(attributeValues);
+  }
+
+  /**
+   * @param {string || number} id - value of id column of the entity
+   * @returns {Promise<integer>} Query builder. After promise is resolved, returns count of deleted rows
+   */
+  deleteById(id: number | string, trx?) {
+    return this.deleteBy(
+      {
+        [this.idColumn]: id,
+      },
+      trx,
+    );
+  }
+
+  /**
+   * Deletes the given entries in the array on the specific field.
+   * @param {string} field -
+   * @param {number|string} values -
+   */
+  deleteWhereIn(field: string, values: (string | number)[], trx) {
+    return this.model.query(trx).whereIn(field, values).delete();
+  }
+
+  /**
+   *
+   * @param {string|number[]} values
+   */
+  deleteWhereIdIn(values: (string | number)[], trx?) {
+    return this.deleteWhereIn(this.idColumn, values, trx);
+  }
+
+  /**
+   * Arbitrary relation graphs can be upserted (insert + update + delete)
+   * using the upsertGraph method.
+   * @param graph
+   * @param options
+   */
+  upsertGraph(graph, options) {
+    // Keep the input grpah immutable
+    const graphCloned = cloneDeep(graph);
+    return this.model.query().upsertGraph(graphCloned, options);
+  }
+
+  /**
+   *
+   * @param {object} whereAttributes
+   * @param {string} field
+   * @param amount
+   */
+  changeNumber(whereAttributes, field: string, amount: number, trx) {
+    const changeMethod = amount > 0 ? 'increment' : 'decrement';
+
+    return this.model
+      .query(trx)
+      .where(whereAttributes)
+      [changeMethod](field, Math.abs(amount));
+  }
+}

packages/server-nest/src/common/repository/TenantRepository.ts

@@ -0,0 +1,6 @@
+// import { CachableRepository } from './CachableRepository';
+import { EntityRepository } from './EntityRepository';
+
+export class TenantRepository extends EntityRepository {
+
+}

packages/server-nest/src/common/types/Discount.ts

@@ -0,0 +1,4 @@
+export enum DiscountType {
+  Percentage = 'percentage',
+  Amount = 'amount',
+}

packages/server-nest/src/common/types/Features.ts

@@ -0,0 +1,16 @@
+export enum Features {
+  WAREHOUSES = 'warehouses',
+  BRANCHES = 'branches',
+  BankSyncing = 'BankSyncing',
+}
+
+export interface IFeatureAllItem {
+  name: string;
+  isAccessible: boolean;
+  defaultAccessible: boolean;
+}
+
+export interface IFeatureConfiugration {
+  name: string;
+  defaultValue?: boolean;
+}

packages/server-nest/src/constants/accounts.ts

@@ -0,0 +1,230 @@
+export const ACCOUNT_TYPE = {
+  CASH: 'cash',
+  BANK: 'bank',
+  ACCOUNTS_RECEIVABLE: 'accounts-receivable',
+  INVENTORY: 'inventory',
+  OTHER_CURRENT_ASSET: 'other-current-asset',
+  FIXED_ASSET: 'fixed-asset',
+  NON_CURRENT_ASSET: 'none-current-asset',
+
+  ACCOUNTS_PAYABLE: 'accounts-payable',
+  CREDIT_CARD: 'credit-card',
+  TAX_PAYABLE: 'tax-payable',
+  OTHER_CURRENT_LIABILITY: 'other-current-liability',
+  LOGN_TERM_LIABILITY: 'long-term-liability',
+  NON_CURRENT_LIABILITY: 'non-current-liability',
+
+  EQUITY: 'equity',
+  INCOME: 'income',
+  OTHER_INCOME: 'other-income',
+  COST_OF_GOODS_SOLD: 'cost-of-goods-sold',
+  EXPENSE: 'expense',
+  OTHER_EXPENSE: 'other-expense',
+};
+
+export const ACCOUNT_PARENT_TYPE = {
+  CURRENT_ASSET: 'current-asset',
+  FIXED_ASSET: 'fixed-asset',
+  NON_CURRENT_ASSET: 'non-current-asset',
+
+  CURRENT_LIABILITY: 'current-liability',
+  LOGN_TERM_LIABILITY: 'long-term-liability',
+  NON_CURRENT_LIABILITY: 'non-current-liability',
+
+  EQUITY: 'equity',
+  EXPENSE: 'expense',
+  INCOME: 'income',
+};
+
+export const ACCOUNT_ROOT_TYPE = {
+  ASSET: 'asset',
+  LIABILITY: 'liability',
+  EQUITY: 'equity',
+  EXPENSE: 'expense',
+  INCOME: 'income',
+};
+
+export const ACCOUNT_NORMAL = {
+  CREDIT: 'credit',
+  DEBIT: 'debit',
+};
+export const ACCOUNT_TYPES = [
+  {
+    label: 'Cash',
+    key: ACCOUNT_TYPE.CASH,
+    normal: ACCOUNT_NORMAL.DEBIT,
+    parentType: ACCOUNT_PARENT_TYPE.CURRENT_ASSET,
+    rootType: ACCOUNT_ROOT_TYPE.ASSET,
+    multiCurrency: true,
+    balanceSheet: true,
+    incomeSheet: false,
+  },
+  {
+    label: 'Bank',
+    key: ACCOUNT_TYPE.BANK,
+    normal: ACCOUNT_NORMAL.DEBIT,
+    parentType: ACCOUNT_PARENT_TYPE.CURRENT_ASSET,
+    rootType: ACCOUNT_ROOT_TYPE.ASSET,
+    multiCurrency: true,
+    balanceSheet: true,
+    incomeSheet: false,
+  },
+  {
+    label: 'Accounts Receivable',
+    key: ACCOUNT_TYPE.ACCOUNTS_RECEIVABLE,
+    normal: ACCOUNT_NORMAL.DEBIT,
+    rootType: ACCOUNT_ROOT_TYPE.ASSET,
+    parentType: ACCOUNT_PARENT_TYPE.CURRENT_ASSET,
+    balanceSheet: true,
+    incomeSheet: false,
+  },
+  {
+    label: 'Inventory',
+    key: ACCOUNT_TYPE.INVENTORY,
+    normal: ACCOUNT_NORMAL.DEBIT,
+    rootType: ACCOUNT_ROOT_TYPE.ASSET,
+    parentType: ACCOUNT_PARENT_TYPE.CURRENT_ASSET,
+    balanceSheet: true,
+    incomeSheet: false,
+  },
+  {
+    label: 'Other Current Asset',
+    key: ACCOUNT_TYPE.OTHER_CURRENT_ASSET,
+    normal: ACCOUNT_NORMAL.DEBIT,
+    rootType: ACCOUNT_ROOT_TYPE.ASSET,
+    parentType: ACCOUNT_PARENT_TYPE.CURRENT_ASSET,
+    balanceSheet: true,
+    incomeSheet: false,
+  },
+  {
+    label: 'Fixed Asset',
+    key: ACCOUNT_TYPE.FIXED_ASSET,
+    normal: ACCOUNT_NORMAL.DEBIT,
+    rootType: ACCOUNT_ROOT_TYPE.ASSET,
+    parentType: ACCOUNT_PARENT_TYPE.FIXED_ASSET,
+    balanceSheet: true,
+    incomeSheet: false,
+  },
+  {
+    label: 'Non-Current Asset',
+    key: ACCOUNT_TYPE.NON_CURRENT_ASSET,
+    normal: ACCOUNT_NORMAL.DEBIT,
+    rootType: ACCOUNT_ROOT_TYPE.ASSET,
+    parentType: ACCOUNT_PARENT_TYPE.FIXED_ASSET,
+    balanceSheet: true,
+    incomeSheet: false,
+  },
+  {
+    label: 'Accounts Payable',
+    key: ACCOUNT_TYPE.ACCOUNTS_PAYABLE,
+    normal: ACCOUNT_NORMAL.CREDIT,
+    rootType: ACCOUNT_ROOT_TYPE.LIABILITY,
+    parentType: ACCOUNT_PARENT_TYPE.CURRENT_LIABILITY,
+    balanceSheet: true,
+    incomeSheet: false,
+  },
+  {
+    label: 'Credit Card',
+    key: ACCOUNT_TYPE.CREDIT_CARD,
+    normal: ACCOUNT_NORMAL.CREDIT,
+    rootType: ACCOUNT_ROOT_TYPE.LIABILITY,
+    parentType: ACCOUNT_PARENT_TYPE.CURRENT_LIABILITY,
+    multiCurrency: true,
+    balanceSheet: true,
+    incomeSheet: false,
+  },
+  {
+    label: 'Tax Payable',
+    key: ACCOUNT_TYPE.TAX_PAYABLE,
+    normal: ACCOUNT_NORMAL.CREDIT,
+    rootType: ACCOUNT_ROOT_TYPE.LIABILITY,
+    parentType: ACCOUNT_PARENT_TYPE.CURRENT_LIABILITY,
+    balanceSheet: true,
+    incomeSheet: false,
+  },
+  {
+    label: 'Other Current Liability',
+    key: ACCOUNT_TYPE.OTHER_CURRENT_LIABILITY,
+    normal: ACCOUNT_NORMAL.CREDIT,
+    rootType: ACCOUNT_ROOT_TYPE.LIABILITY,
+    parentType: ACCOUNT_PARENT_TYPE.CURRENT_LIABILITY,
+    balanceSheet: false,
+    incomeSheet: true,
+  },
+  {
+    label: 'Long Term Liability',
+    key: ACCOUNT_TYPE.LOGN_TERM_LIABILITY,
+    normal: ACCOUNT_NORMAL.CREDIT,
+    rootType: ACCOUNT_ROOT_TYPE.LIABILITY,
+    parentType: ACCOUNT_PARENT_TYPE.LOGN_TERM_LIABILITY,
+    balanceSheet: false,
+    incomeSheet: true,
+  },
+  {
+    label: 'Non-Current Liability',
+    key: ACCOUNT_TYPE.NON_CURRENT_LIABILITY,
+    normal: ACCOUNT_NORMAL.CREDIT,
+    rootType: ACCOUNT_ROOT_TYPE.LIABILITY,
+    parentType: ACCOUNT_PARENT_TYPE.NON_CURRENT_LIABILITY,
+    balanceSheet: false,
+    incomeSheet: true,
+  },
+  {
+    label: 'Equity',
+    key: ACCOUNT_TYPE.EQUITY,
+    normal: ACCOUNT_NORMAL.CREDIT,
+    rootType: ACCOUNT_ROOT_TYPE.EQUITY,
+    parentType: ACCOUNT_PARENT_TYPE.EQUITY,
+    balanceSheet: true,
+    incomeSheet: false,
+  },
+  {
+    label: 'Income',
+    key: ACCOUNT_TYPE.INCOME,
+    normal: ACCOUNT_NORMAL.CREDIT,
+    rootType: ACCOUNT_ROOT_TYPE.INCOME,
+    parentType: ACCOUNT_PARENT_TYPE.INCOME,
+    balanceSheet: false,
+    incomeSheet: true,
+  },
+  {
+    label: 'Other Income',
+    key: ACCOUNT_TYPE.OTHER_INCOME,
+    normal: ACCOUNT_NORMAL.CREDIT,
+    rootType: ACCOUNT_ROOT_TYPE.INCOME,
+    parentType: ACCOUNT_PARENT_TYPE.INCOME,
+    balanceSheet: false,
+    incomeSheet: true,
+  },
+  {
+    label: 'Cost of Goods Sold',
+    key: ACCOUNT_TYPE.COST_OF_GOODS_SOLD,
+    normal: ACCOUNT_NORMAL.DEBIT,
+    rootType: ACCOUNT_ROOT_TYPE.EXPENSE,
+    parentType: ACCOUNT_PARENT_TYPE.EXPENSE,
+    balanceSheet: false,
+    incomeSheet: true,
+  },
+  {
+    label: 'Expense',
+    key: ACCOUNT_TYPE.EXPENSE,
+    normal: ACCOUNT_NORMAL.DEBIT,
+    rootType: ACCOUNT_ROOT_TYPE.EXPENSE,
+    parentType: ACCOUNT_PARENT_TYPE.EXPENSE,
+    balanceSheet: false,
+    incomeSheet: true,
+  },
+  {
+    label: 'Other Expense',
+    key: ACCOUNT_TYPE.OTHER_EXPENSE,
+    normal: ACCOUNT_NORMAL.DEBIT,
+    rootType: ACCOUNT_ROOT_TYPE.EXPENSE,
+    parentType: ACCOUNT_PARENT_TYPE.EXPENSE,
+    balanceSheet: false,
+    incomeSheet: true,
+  },
+];
+
+export const getAccountsSupportsMultiCurrency = () => {
+  return ACCOUNT_TYPES.filter((account) => account.multiCurrency);
+};

packages/server-nest/src/constants/data-types.ts

@@ -0,0 +1,7 @@
+export const DATATYPES_LENGTH = {
+  STRING: 255,
+  TEXT: 65535,
+  INT_10: 4294967295,
+  DECIMAL_13_3: 9999999999.999,
+  DECIMAL_15_5: 999999999999.999,
+};

packages/server-nest/src/constants/metable-options.ts

@@ -0,0 +1,241 @@
+// import { getTransactionsLockingSettingsSchema } from '@/api/controllers/TransactionsLocking/utils';
+
+export const SettingsOptions = {
+  organization: {
+    name: {
+      type: 'string',
+    },
+    base_currency: {
+      type: 'string',
+    },
+    industry: {
+      type: 'string',
+    },
+    location: {
+      type: 'string',
+    },
+    fiscal_year: {
+      type: 'string',
+    },
+    financial_date_start: {
+      type: 'string',
+    },
+    language: {
+      type: 'string',
+    },
+    time_zone: {
+      type: 'string',
+    },
+    date_format: {
+      type: 'string',
+    },
+    accounting_basis: {
+      type: 'string',
+    },
+  },
+  manual_journals: {
+    next_number: {
+      type: 'string',
+    },
+    number_prefix: {
+      type: 'string',
+    },
+    auto_increment: {
+      type: 'boolean',
+    },
+  },
+  bill_payments: {
+    withdrawal_account: {
+      type: 'number',
+    },
+  },
+  sales_estimates: {
+    next_number: {
+      type: 'string',
+    },
+    number_prefix: {
+      type: 'string',
+    },
+    auto_increment: {
+      type: 'boolean',
+    },
+    customer_notes: {
+      type: 'string',
+    },
+    terms_conditions: {
+      type: 'string',
+    },
+  },
+  sales_receipts: {
+    next_number: {
+      type: 'string',
+    },
+    number_prefix: {
+      type: 'string',
+    },
+    auto_increment: {
+      type: 'boolean',
+    },
+    preferred_deposit_account: {
+      type: 'number',
+    },
+    receipt_message: {
+      type: 'string',
+    },
+    terms_conditions: {
+      type: 'string',
+    },
+  },
+  sales_invoices: {
+    next_number: {
+      type: 'string',
+    },
+    number_prefix: {
+      type: 'string',
+    },
+    auto_increment: {
+      type: 'boolean',
+    },
+    customer_notes: {
+      type: 'string',
+    },
+    terms_conditions: {
+      type: 'string',
+    },
+  },
+  payment_receives: {
+    next_number: {
+      type: 'string',
+    },
+    number_prefix: {
+      type: 'string',
+    },
+    auto_increment: {
+      type: 'boolean',
+    },
+    preferred_deposit_account: {
+      type: 'number',
+    },
+    preferred_advance_deposit: {
+      type: 'number',
+    },
+  },
+  items: {
+    preferred_sell_account: {
+      type: 'number',
+    },
+    preferred_cost_account: {
+      type: 'number',
+    },
+    preferred_inventory_account: {
+      type: 'number',
+    },
+  },
+  expenses: {
+    preferred_payment_account: {
+      type: 'number',
+    },
+  },
+  inventory: {
+    cost_compute_running: {
+      type: 'boolean',
+    },
+  },
+  accounts: {
+    account_code_required: {
+      type: 'boolean',
+    },
+    account_code_unique: {
+      type: 'boolean',
+    },
+  },
+  cashflow: {
+    next_number: {
+      type: 'string',
+    },
+    number_prefix: {
+      type: 'string',
+    },
+    auto_increment: {
+      type: 'boolean',
+    },
+  },
+  credit_note: {
+    next_number: {
+      type: 'string',
+    },
+    number_prefix: {
+      type: 'string',
+    },
+    auto_increment: {
+      type: 'boolean',
+    },
+    customer_notes: {
+      type: 'string',
+    },
+    terms_conditions: {
+      type: 'string',
+    },
+  },
+  vendor_credit: {
+    next_number: {
+      type: 'string',
+    },
+    number_prefix: {
+      type: 'string',
+    },
+    auto_increment: {
+      type: 'boolean',
+    },
+  },
+  warehouse_transfers: {
+    next_number: {
+      type: 'string',
+    },
+    number_prefix: {
+      type: 'string',
+    },
+    auto_increment: {
+      type: 'boolean',
+    },
+  },
+  'sms-notification': {
+    'sms-notification-enable.sale-invoice-details': {
+      type: 'boolean',
+    },
+    'sms-notification-enable.sale-invoice-reminder': {
+      type: 'boolean',
+    },
+    'sms-notification-enable.sale-estimate-details': {
+      type: 'boolean',
+    },
+    'sms-notification-enable.sale-receipt-details': {
+      type: 'boolean',
+    },
+    'sms-notification-enable.payment-receive-details': {
+      type: 'boolean',
+    },
+    'sms-notification-enable.customer-balance': {
+      type: 'boolean',
+    },
+  },
+  'transactions-locking': {
+    'locking-type': {
+      type: 'string',
+    },
+    // ...getTransactionsLockingSettingsSchema([
+    //   'all',
+    //   'sales',
+    //   'purchases',
+    //   'financial',
+    // ]),
+  },
+  features: {
+    'multi-warehouses': {
+      type: 'boolean',
+    },
+    'multi-branches': {
+      type: 'boolean',
+    },
+  },
+};

packages/server-nest/src/i18n/en/test.json

@@ -0,0 +1,21 @@
+{
+  "HELLO": "Hello",
+  "PRODUCT": {
+    "NEW": "New Product: {name}"
+  },
+  "ENGLISH": "English",
+  "ARRAY": ["ONE", "TWO", "THREE"],
+  "cat": "Cat",
+  "cat_name": "Cat: {name}",
+  "set-up-password": {
+    "heading": "Hello, {username}",
+    "title": "Forgot password",
+    "followLink": "Please follow the link to set up your password"
+  },
+  "day_interval": {
+    "one": "Every day",
+    "other": "Every {count} days",
+    "zero": "Never"
+  },
+  "nested": "We go shopping: $t(test.day_interval, {{\"count\": {count} }})"
+}

packages/server-nest/src/interceptors/ExcludeNull.interceptor.ts

@@ -0,0 +1,15 @@
+import {
+  Injectable,
+  NestInterceptor,
+  ExecutionContext,
+  CallHandler,
+} from '@nestjs/common';
+import { Observable } from 'rxjs';
+import { map } from 'rxjs/operators';
+
+@Injectable()
+export class ExcludeNullInterceptor implements NestInterceptor {
+  intercept(context: ExecutionContext, next: CallHandler): Observable<any> {
+    return next.handle().pipe(map((value) => (value === null ? '' : value)));
+  }
+}

packages/server-nest/src/interceptors/global-prefix.interceptor.ts

@@ -0,0 +1,21 @@
+import {
+  Injectable,
+  NestInterceptor,
+  ExecutionContext,
+  CallHandler,
+} from '@nestjs/common';
+import { Observable } from 'rxjs';
+import { map } from 'rxjs/operators';
+
+@Injectable()
+export class GlobalPrefixInterceptor implements NestInterceptor {
+  intercept(context: ExecutionContext, next: CallHandler): Observable<any> {
+    const request = context.switchToHttp().getRequest();
+    request.url = `/api${request.url}`;
+    return next.handle().pipe(
+      map((data) => {
+        return data;
+      }),
+    );
+  }
+}

packages/server-nest/src/interceptors/user-ip.interceptor.ts

@@ -0,0 +1,21 @@
+import {
+  CallHandler,
+  ExecutionContext,
+  Injectable,
+  NestInterceptor,
+} from '@nestjs/common';
+import { ClsService } from 'nestjs-cls';
+import { Observable } from 'rxjs';
+
+@Injectable()
+export class UserIpInterceptor implements NestInterceptor {
+  constructor(private readonly cls: ClsService) {}
+
+  intercept(context: ExecutionContext, next: CallHandler): Observable<any> {
+    const request = context.switchToHttp().getRequest();
+    const userIp = request.connection.remoteAddress;
+    this.cls.set('ip', userIp);
+
+    return next.handle();
+  }
+}

packages/server-nest/src/interfaces/Account.ts

@@ -0,0 +1,174 @@
+import { Knex } from 'knex';
+
+export interface IAccountDTO {
+  name: string;
+  code: string;
+  description: string;
+  accountType: string;
+  parentAccountId?: number;
+  active: boolean;
+  bankBalance?: number;
+  accountMask?: string;
+}
+
+export interface IAccountCreateDTO extends IAccountDTO {
+  currencyCode?: string;
+  plaidAccountId?: string;
+  plaidItemId?: string;
+}
+
+export interface IAccountEditDTO extends IAccountDTO {}
+
+export interface IAccount {
+  id: number;
+  name: string;
+  slug: string;
+  code: string;
+  index: number;
+  description: string;
+  accountType: string;
+  parentAccountId: number;
+  active: boolean;
+  predefined: boolean;
+  amount: number;
+  currencyCode: string;
+  transactions?: any[];
+  type?: any[];
+  accountNormal: string;
+  accountParentType: string;
+  bankBalance: string;
+  plaidItemId: number | null;
+  lastFeedsUpdatedAt: Date;
+}
+
+export enum AccountNormal {
+  DEBIT = 'debit',
+  CREDIT = 'credit',
+}
+
+export interface IAccountsTransactionsFilter {
+  accountId?: number;
+  limit?: number;
+}
+
+export interface IAccountTransaction {
+  id?: number;
+
+  credit: number;
+  debit: number;
+  currencyCode: string;
+  exchangeRate: number;
+
+  accountId: number;
+  contactId?: number | null;
+  date: string | Date;
+
+  referenceType: string;
+  referenceTypeFormatted: string;
+  referenceId: number;
+
+  referenceNumber?: string;
+
+  transactionNumber?: string;
+  transactionType?: string;
+
+  note?: string;
+
+  index: number;
+  indexGroup?: number;
+
+  costable?: boolean;
+
+  userId?: number;
+  itemId?: number;
+  branchId?: number;
+  projectId?: number;
+
+  account?: IAccount;
+
+  taxRateId?: number;
+  taxRate?: number;
+}
+export interface IAccountResponse extends IAccount {}
+
+export enum IAccountsStructureType {
+  Tree = 'tree',
+  Flat = 'flat',
+}
+
+export interface IAccountsFilter {
+  stringifiedFilterRoles?: string;
+  onlyInactive: boolean;
+  structure?: IAccountsStructureType;
+}
+
+export interface IAccountType {
+  label: string;
+  key: string;
+  normal: string;
+  rootType: string;
+  childType: string;
+  balanceSheet: boolean;
+  incomeSheet: boolean;
+}
+
+export interface IAccountsTypesService {
+  getAccountsTypes(tenantId: number): Promise<IAccountType>;
+}
+
+export interface IAccountEventCreatingPayload {
+  tenantId: number;
+  accountDTO: any;
+  trx: Knex.Transaction;
+}
+export interface IAccountEventCreatedPayload {
+  tenantId: number;
+  account: IAccount;
+  accountId: number;
+  trx: Knex.Transaction;
+}
+
+export interface IAccountEventEditedPayload {
+  tenantId: number;
+  account: IAccount;
+  oldAccount: IAccount;
+  trx: Knex.Transaction;
+}
+
+export interface IAccountEventDeletedPayload {
+  tenantId: number;
+  accountId: number;
+  oldAccount: IAccount;
+  trx: Knex.Transaction;
+}
+
+export interface IAccountEventDeletePayload {
+  trx: Knex.Transaction;
+  oldAccount: IAccount;
+  tenantId: number;
+}
+
+export interface IAccountEventActivatedPayload {
+  tenantId: number;
+  accountId: number;
+  trx: Knex.Transaction;
+}
+
+export enum AccountAction {
+  CREATE = 'Create',
+  EDIT = 'Edit',
+  DELETE = 'Delete',
+  VIEW = 'View',
+  TransactionsLocking = 'TransactionsLocking',
+}
+
+export enum TaxRateAction {
+  CREATE = 'Create',
+  EDIT = 'Edit',
+  DELETE = 'Delete',
+  VIEW = 'View',
+}
+
+export interface CreateAccountParams {
+  ignoreUniqueName: boolean;
+}

packages/server-nest/src/interfaces/Item.ts

@@ -0,0 +1,165 @@
+import { ApiProperty } from '@nestjs/swagger';
+import { Knex } from 'knex';
+import { Item } from '@/modules/Items/models/Item';
+// import { AbilitySubject } from '@/interfaces';
+// import { IFilterRole } from '@/interfaces/DynamicFilter';
+
+export interface IItem {
+  id: number;
+  name: string;
+  type: string;
+  code: string;
+
+  sellable: boolean;
+  purchasable: boolean;
+
+  costPrice: number;
+  sellPrice: number;
+  currencyCode: string;
+
+  costAccountId: number;
+  sellAccountId: number;
+  inventoryAccountId: number;
+
+  sellDescription: string;
+  purchaseDescription: string;
+
+  sellTaxRateId: number;
+  purchaseTaxRateId: number;
+
+  quantityOnHand: number;
+
+  note: string;
+  active: boolean;
+
+  categoryId: number;
+  userId: number;
+
+  createdAt: Date;
+  updatedAt: Date;
+}
+
+export class IItemDTO {
+  @ApiProperty()
+  name: string;
+
+  @ApiProperty()
+  type: string;
+
+  @ApiProperty()
+  code: string;
+
+  @ApiProperty()
+  sellable: boolean;
+
+  @ApiProperty()
+  purchasable: boolean;
+
+  @ApiProperty()
+  costPrice: number;
+
+  @ApiProperty()
+  sellPrice: number;
+
+  @ApiProperty()
+  currencyCode: string;
+
+  @ApiProperty()
+  costAccountId: number;
+
+  @ApiProperty()
+  sellAccountId: number;
+
+  @ApiProperty()
+  inventoryAccountId: number;
+
+  @ApiProperty()
+  sellDescription: string;
+
+  @ApiProperty()
+  purchaseDescription: string;
+
+  @ApiProperty()
+  sellTaxRateId: number;
+
+  @ApiProperty()
+  purchaseTaxRateId: number;
+
+  @ApiProperty()
+  quantityOnHand: number;
+
+  @ApiProperty()
+  note: string;
+
+  @ApiProperty()
+  active: boolean;
+
+  @ApiProperty()
+  categoryId: number;
+}
+
+export interface IItemCreateDTO extends IItemDTO {}
+export interface IItemEditDTO extends IItemDTO {}
+
+// export interface IItemsService {
+//   getItem(tenantId: number, itemId: number): Promise<IItem>;
+//   deleteItem(tenantId: number, itemId: number): Promise<void>;
+//   editItem(tenantId: number, itemId: number, itemDTO: IItemDTO): Promise<IItem>;
+//   newItem(tenantId: number, itemDTO: IItemDTO): Promise<IItem>;
+//   itemsList(
+//     tenantId: number,
+//     itemsFilter: IItemsFilter,
+//   ): Promise<{ items: IItem[] }>;
+// }
+
+// export interface IItemsFilter extends IDynamicListFilterDTO {
+//   stringifiedFilterRoles?: string;
+//   page: number;
+//   pageSize: number;
+//   inactiveMode: boolean;
+//   viewSlug?: string;
+// }
+
+// export interface IItemsAutoCompleteFilter {
+//   limit: number;
+//   keyword: string;
+//   filterRoles?: IFilterRole[];
+//   columnSortBy: string;
+//   sortOrder: string;
+// }
+
+export interface IItemEventCreatedPayload {
+  // tenantId: number;
+  item: Item;
+  itemId: number;
+  trx: Knex.Transaction;
+}
+
+export interface IItemEventEditedPayload {
+  item: Item;
+  oldItem: Item;
+  itemId: number;
+  trx: Knex.Transaction;
+}
+
+export interface IItemEventDeletingPayload {
+  // tenantId: number;
+  trx: Knex.Transaction;
+  oldItem: Item;
+}
+
+export interface IItemEventDeletedPayload {
+  // tenantId: number;
+  itemId: number;
+  oldItem: Item;
+  trx: Knex.Transaction;
+}
+
+export enum ItemAction {
+  CREATE = 'Create',
+  EDIT = 'Edit',
+  DELETE = 'Delete',
+  VIEW = 'View',
+}
+
+// export type ItemAbility = [ItemAction, AbilitySubject.Item];

packages/server-nest/src/interfaces/Model.ts

@@ -0,0 +1,193 @@
+export interface IModel {
+  name: string;
+  tableName: string;
+  fields: { [key: string]: any };
+}
+
+export interface IFilterMeta {
+  sortOrder: string;
+  sortBy: string;
+}
+
+export interface IPaginationMeta {
+  pageSize: number;
+  page: number;
+}
+
+export interface IModelMetaDefaultSort {
+  sortOrder: ISortOrder;
+  sortField: string;
+}
+
+export type IModelColumnType =
+  | 'text'
+  | 'number'
+  | 'enumeration'
+  | 'boolean'
+  | 'relation';
+
+export type ISortOrder = 'DESC' | 'ASC';
+
+export interface IModelMetaFieldCommon {
+  name: string;
+  column: string;
+  columnable?: boolean;
+  customQuery?: Function;
+  required?: boolean;
+  importHint?: string;
+  importableRelationLabel?: string;
+  order?: number;
+  unique?: number;
+  dataTransferObjectKey?: string;
+}
+
+export interface IModelMetaFieldText {
+  fieldType: 'text';
+  minLength?: number;
+  maxLength?: number;
+}
+export interface IModelMetaFieldBoolean {
+  fieldType: 'boolean';
+}
+export interface IModelMetaFieldNumber {
+  fieldType: 'number';
+  min?: number;
+  max?: number;
+}
+export interface IModelMetaFieldDate {
+  fieldType: 'date';
+}
+export interface IModelMetaFieldUrl {
+  fieldType: 'url';
+}
+export type IModelMetaField = IModelMetaFieldCommon &
+  (
+    | IModelMetaFieldText
+    | IModelMetaFieldNumber
+    | IModelMetaFieldBoolean
+    | IModelMetaFieldDate
+    | IModelMetaFieldUrl
+    | IModelMetaEnumerationField
+    | IModelMetaRelationField
+    | IModelMetaCollectionField
+  );
+
+export interface IModelMetaEnumerationOption {
+  key: string;
+  label: string;
+}
+
+export interface IModelMetaEnumerationField {
+  fieldType: 'enumeration';
+  options: IModelMetaEnumerationOption[];
+}
+
+export interface IModelMetaRelationFieldCommon {
+  fieldType: 'relation';
+}
+
+export interface IModelMetaRelationEnumerationField {
+  relationType: 'enumeration';
+  relationKey: string;
+  relationEntityLabel: string;
+  relationEntityKey: string;
+}
+
+export interface IModelMetaFieldWithFields {
+  fields: IModelMetaFieldCommon2 &
+    (
+      | IModelMetaFieldText
+      | IModelMetaFieldNumber
+      | IModelMetaFieldBoolean
+      | IModelMetaFieldDate
+      | IModelMetaFieldUrl
+      | IModelMetaEnumerationField
+      | IModelMetaRelationField
+    );
+}
+
+interface IModelMetaCollectionObjectField extends IModelMetaFieldWithFields {
+  collectionOf: 'object';
+}
+
+export interface IModelMetaCollectionFieldCommon {
+  fieldType: 'collection';
+  collectionMinLength?: number;
+  collectionMaxLength?: number;
+}
+
+export type IModelMetaCollectionField = IModelMetaCollectionFieldCommon &
+  IModelMetaCollectionObjectField;
+
+export type IModelMetaRelationField = IModelMetaRelationFieldCommon &
+  IModelMetaRelationEnumerationField;
+
+interface IModelPrintMeta {
+  pageTitle: string;
+}
+
+export interface IModelMeta {
+  defaultFilterField: string;
+  defaultSort: IModelMetaDefaultSort;
+
+  exportable?: boolean;
+  exportFlattenOn?: string;
+
+  importable?: boolean;
+  importAggregator?: string;
+  importAggregateOn?: string;
+  importAggregateBy?: string;
+
+  print?: IModelPrintMeta;
+
+  fields: Record<string, IModelMetaField>;
+  fields2: Record<string, IModelMetaField2>;
+  columns: Record<string, IModelMetaColumn>;
+}
+
+// ----
+export interface IModelMetaFieldCommon2 {
+  name: string;
+  required?: boolean;
+  importHint?: string;
+  order?: number;
+  unique?: number;
+  features?: Array<any>;
+}
+
+export interface IModelMetaRelationField2 {
+  fieldType: 'relation';
+  relationModel: string;
+  importableRelationLabel: string | string[];
+}
+
+export type IModelMetaField2 = IModelMetaFieldCommon2 &
+  (
+    | IModelMetaFieldText
+    | IModelMetaFieldNumber
+    | IModelMetaFieldBoolean
+    | IModelMetaFieldDate
+    | IModelMetaFieldUrl
+    | IModelMetaEnumerationField
+    | IModelMetaRelationField2
+    | IModelMetaCollectionField
+  );
+
+export interface ImodelMetaColumnMeta {
+  name: string;
+  accessor?: string;
+  exportable?: boolean;
+}
+
+interface IModelMetaColumnText {
+  type: 'text;';
+}
+
+interface IModelMetaColumnCollection {
+  type: 'collection';
+  collectionOf: 'object';
+  columns: { [key: string]: ImodelMetaColumnMeta & IModelMetaColumnText };
+}
+
+export type IModelMetaColumn = ImodelMetaColumnMeta &
+  (IModelMetaColumnText | IModelMetaColumnCollection);

packages/server-nest/src/interfaces/SubscriptionPlan.ts

@@ -0,0 +1,8 @@
+export interface SubscriptionPayload {
+  lemonSqueezyId?: string;
+}
+
+export enum SubscriptionPaymentStatus {
+  Succeed = 'succeed',
+  Failed = 'failed',
+}

packages/server-nest/src/libs/accounts-utils/AccountTypesUtils.ts

@@ -0,0 +1,101 @@
+import { get } from 'lodash';
+import { ACCOUNT_TYPES } from '@/constants/accounts';
+
+export class AccountTypesUtils {
+  /**
+   * Retrieve account types list.
+   */
+  static getList() {
+    return ACCOUNT_TYPES;
+  }
+
+  /**
+   * Retrieve accounts types by the given root type.
+   * @param {string} rootType -
+   * @return {string}
+   */
+  static getTypesByRootType(rootType: string) {
+    return ACCOUNT_TYPES.filter((type) => type.rootType === rootType);
+  }
+
+  /**
+   * Retrieve account type by the given account type key.
+   * @param {string} key 
+   * @param {string} accessor 
+   */
+  static getType(key: string, accessor?: string) {
+    const type = ACCOUNT_TYPES.find((type) => type.key === key);
+
+    if (accessor) {
+      return get(type, accessor);
+    }
+    return type;
+  }
+
+  /**
+   * Retrieve accounts types by the parent account type.
+   * @param {string} parentType 
+   */
+  static getTypesByParentType(parentType: string) {
+    return ACCOUNT_TYPES.filter((type) => type.parentType === parentType);
+  }
+
+  /**
+   * Retrieve accounts types by the given account normal.
+   * @param {string} normal 
+   */
+  static getTypesByNormal(normal: string) {
+    return ACCOUNT_TYPES.filter((type) => type.normal === normal);
+  }
+
+  /**
+   * Detarmines whether the root type equals the account type. 
+   * @param {string} key 
+   * @param {string} rootType 
+   */
+  static isRootTypeEqualsKey(key: string, rootType: string): boolean {
+    return ACCOUNT_TYPES.some((type) => {
+      const isType = type.key === key;
+      const isRootType = type.rootType === rootType;
+
+      return isType && isRootType;
+    });
+  }
+
+  /**
+   * Detarmines whether the parent account type equals the account type key.
+   * @param {string} key - Account type key.
+   * @param {string} parentType - Account parent type.
+   */
+  static isParentTypeEqualsKey(key: string, parentType: string): boolean {
+    return ACCOUNT_TYPES.some((type) => {
+      const isType = type.key === key;
+      const isParentType = type.parentType === parentType;
+
+      return isType && isParentType;
+    });
+  }
+
+  /**
+   * Detarmines whether account type has balance sheet.
+   * @param {string} key - Account type key.
+   * 
+   */
+  static isTypeBalanceSheet(key: string): boolean {
+    return ACCOUNT_TYPES.some((type) => {
+      const isType = type.key === key;
+      return isType && type.balanceSheet;
+    });
+  }
+
+  /**
+   * Detarmines whether account type has profit/loss sheet.
+   * @param {string} key - Account type key.
+   */
+  static isTypePLSheet(key: string): boolean {
+    return ACCOUNT_TYPES.some((type) => {
+      const isType = type.key === key;
+      return isType && type.incomeSheet;
+    });
+  }
+}

packages/server-nest/src/libs/chromiumly/Chromiumly.ts

@@ -0,0 +1,26 @@
+import { ChromiumRoute, LibreOfficeRoute, PdfEngineRoute } from './_types';
+
+export class Chromiumly {
+  public static readonly GOTENBERG_ENDPOINT = process.env.GOTENBERG_URL || '';
+
+  public static readonly CHROMIUM_PATH = 'forms/chromium/convert';
+  public static readonly PDF_ENGINES_PATH = 'forms/pdfengines';
+  public static readonly LIBRE_OFFICE_PATH = 'forms/libreoffice';
+
+  public static readonly GOTENBERG_DOCS_ENDPOINT =
+    process.env.GOTENBERG_DOCS_URL || '';
+
+  public static readonly CHROMIUM_ROUTES = {
+    url: ChromiumRoute.URL,
+    html: ChromiumRoute.HTML,
+    markdown: ChromiumRoute.MARKDOWN,
+  };
+
+  public static readonly PDF_ENGINE_ROUTES = {
+    merge: PdfEngineRoute.MERGE,
+  };
+
+  public static readonly LIBRE_OFFICE_ROUTES = {
+    convert: LibreOfficeRoute.CONVERT,
+  };
+}

packages/server-nest/src/libs/chromiumly/ConvertUtils.ts

@@ -0,0 +1,66 @@
+import FormData from 'form-data';
+import { GotenbergUtils } from './GotenbergUtils';
+import { PageProperties } from './_types';
+
+export class ConverterUtils {
+  public static injectPageProperties(
+    data: FormData,
+    pageProperties: PageProperties
+  ): void {
+    if (pageProperties.size) {
+      GotenbergUtils.assert(
+        pageProperties.size.width >= 1.0 && pageProperties.size.height >= 1.5,
+        'size is smaller than the minimum printing requirements (i.e. 1.0 x 1.5 in)'
+      );
+
+      data.append('paperWidth', pageProperties.size.width);
+      data.append('paperHeight', pageProperties.size.height);
+    }
+    if (pageProperties.margins) {
+      GotenbergUtils.assert(
+        pageProperties.margins.top >= 0 &&
+          pageProperties.margins.bottom >= 0 &&
+          pageProperties.margins.left >= 0 &&
+          pageProperties.margins.left >= 0,
+        'negative margins are not allowed'
+      );
+      data.append('marginTop', pageProperties.margins.top);
+      data.append('marginBottom', pageProperties.margins.bottom);
+      data.append('marginLeft', pageProperties.margins.left);
+      data.append('marginRight', pageProperties.margins.right);
+    }
+    if (pageProperties.preferCssPageSize) {
+      data.append(
+        'preferCssPageSize',
+        String(pageProperties.preferCssPageSize)
+      );
+    }
+    if (pageProperties.printBackground) {
+      data.append('printBackground', String(pageProperties.printBackground));
+    }
+    if (pageProperties.landscape) {
+      data.append('landscape', String(pageProperties.landscape));
+    }
+    if (pageProperties.scale) {
+      GotenbergUtils.assert(
+        pageProperties.scale >= 0.1 && pageProperties.scale <= 2.0,
+        'scale is outside of [0.1 - 2] range'
+      );
+      data.append('scale', pageProperties.scale);
+    }
+
+    if (pageProperties.nativePageRanges) {
+      GotenbergUtils.assert(
+        pageProperties.nativePageRanges.from > 0 &&
+          pageProperties.nativePageRanges.to > 0 &&
+          pageProperties.nativePageRanges.to >=
+            pageProperties.nativePageRanges.from,
+        'page ranges syntax error'
+      );
+      data.append(
+        'nativePageRanges',
+        `${pageProperties.nativePageRanges.from}-${pageProperties.nativePageRanges.to}`
+      );
+    }
+  }
+}

packages/server-nest/src/libs/chromiumly/Converter.ts

@@ -0,0 +1,10 @@
+import { Chromiumly } from './Chromiumly';
+import { ChromiumRoute } from './_types';
+
+export abstract class Converter {
+  readonly endpoint: string;
+
+  constructor(route: ChromiumRoute) {
+    this.endpoint = `${Chromiumly.GOTENBERG_ENDPOINT}/${Chromiumly.CHROMIUM_PATH}/${Chromiumly.CHROMIUM_ROUTES[route]}`;
+  }
+}

packages/server-nest/src/libs/chromiumly/GotenbergUtils.ts

@@ -0,0 +1,24 @@
+import FormData from 'form-data';
+import Axios from 'axios';
+
+export class GotenbergUtils {
+  public static assert(condition: boolean, message: string): asserts condition {
+    if (!condition) {
+      throw new Error(message);
+    }
+  }
+
+  public static async fetch(endpoint: string, data: FormData): Promise<Buffer> {
+    try {
+      const response = await Axios.post(endpoint, data, {
+        headers: {
+          ...data.getHeaders(),
+        },
+        responseType: 'arraybuffer', // This ensures you get a Buffer bac
+      });
+      return response.data;
+    } catch (error) {
+      console.error(error);
+    }
+  }
+}

packages/server-nest/src/libs/chromiumly/HTMLConvert.ts

@@ -0,0 +1,38 @@
+import { constants, createReadStream, PathLike, promises } from 'fs';
+import FormData from 'form-data';
+import { GotenbergUtils } from './GotenbergUtils';
+import { IConverter, PageProperties } from './_types';
+import { PdfFormat, ChromiumRoute } from './_types';
+import { ConverterUtils } from './ConvertUtils';
+import { Converter } from './Converter';
+
+export class HtmlConverter extends Converter implements IConverter {
+  constructor() {
+    super(ChromiumRoute.HTML);
+  }
+
+  async convert({
+    html,
+    properties,
+    pdfFormat,
+  }: {
+    html: PathLike;
+    properties?: PageProperties;
+    pdfFormat?: PdfFormat;
+  }): Promise<Buffer> {
+    try {
+      await promises.access(html, constants.R_OK);
+      const data = new FormData();
+      if (pdfFormat) {
+        data.append('pdfFormat', pdfFormat);
+      }
+      data.append('index.html', createReadStream(html));
+      if (properties) {
+        ConverterUtils.injectPageProperties(data, properties);
+      }
+      return GotenbergUtils.fetch(this.endpoint, data);
+    } catch (error) {
+      throw error;
+    }
+  }
+}

packages/server-nest/src/libs/chromiumly/UrlConvert.ts

@@ -0,0 +1,38 @@
+import FormData from 'form-data';
+import { IConverter, PageProperties, PdfFormat, ChromiumRoute } from './_types';
+import { ConverterUtils } from './ConvertUtils';
+import { Converter } from './Converter';
+import { GotenbergUtils } from './GotenbergUtils';
+
+export class UrlConverter extends Converter implements IConverter {
+  constructor() {
+    super(ChromiumRoute.URL);
+  }
+
+  async convert({
+    url,
+    properties,
+    pdfFormat,
+  }: {
+    url: string;
+    properties?: PageProperties;
+    pdfFormat?: PdfFormat;
+  }): Promise<Buffer> {
+    try {
+      const _url = new URL(url);
+      const data = new FormData();
+
+      if (pdfFormat) {
+        data.append('pdfFormat', pdfFormat);
+      }
+      data.append('url', _url.href);
+
+      if (properties) {
+        ConverterUtils.injectPageProperties(data, properties);
+      }
+      return GotenbergUtils.fetch(this.endpoint, data);
+    } catch (error) {
+      throw error;
+    }
+  }
+}

packages/server-nest/src/libs/chromiumly/_types.ts

@@ -0,0 +1,51 @@
+import { PathLike } from 'fs';
+
+export type PageSize = {
+  width: number; // Paper width, in inches (default 8.5)
+  height: number; //Paper height, in inches (default 11)
+};
+
+export type PageMargins = {
+  top: number; // Top margin, in inches (default 0.39)
+  bottom: number; // Bottom margin, in inches (default 0.39)
+  left: number; // Left margin, in inches (default 0.39)
+  right: number; // Right margin, in inches (default 0.39)
+};
+
+export type PageProperties = {
+  size?: PageSize;
+  margins?: PageMargins;
+  preferCssPageSize?: boolean; // Define whether to prefer page size as defined by CSS (default false)
+  printBackground?: boolean; // Print the background graphics (default false)
+  landscape?: boolean; // Set the paper orientation to landscape (default false)
+  scale?: number; // The scale of the page rendering (default 1.0)
+  nativePageRanges?: { from: number; to: number }; // Page ranges to print
+};
+
+export interface IConverter {
+  convert({
+    ...args
+  }: {
+    [x: string]: string | PathLike | PageProperties | PdfFormat;
+  }): Promise<Buffer>;
+}
+
+export enum PdfFormat {
+  A_1a = 'PDF/A-1a',
+  A_2b = 'PDF/A-2b',
+  A_3b = 'PDF/A-3b',
+}
+
+export enum ChromiumRoute {
+  URL = 'url',
+  HTML = 'html',
+  MARKDOWN = 'markdown',
+}
+
+export enum PdfEngineRoute {
+  MERGE = 'merge',
+}
+
+export enum LibreOfficeRoute {
+  CONVERT = 'convert',
+}

packages/server-nest/src/libs/dependency-graph/index.ts

@@ -0,0 +1,350 @@
+// @ts-nocheck
+/**
+ * A simple dependency graph
+ */
+/**
+ * Helper for creating a Topological Sort using Depth-First-Search on a set of edges.
+ *
+ * Detects cycles and throws an Error if one is detected (unless the "circular"
+ * parameter is "true" in which case it ignores them).
+ *
+ * @param edges The set of edges to DFS through
+ * @param leavesOnly Whether to only return "leaf" nodes (ones who have no edges)
+ * @param result An array in which the results will be populated
+ * @param circular A boolean to allow circular dependencies
+ */
+function createDFS(edges, leavesOnly, result, circular) {
+    var visited = {};
+    return function (start) {
+      if (visited[start]) {
+        return;
+      }
+      var inCurrentPath = {};
+      var currentPath = [];
+      var todo = []; // used as a stack
+      todo.push({ node: start, processed: false });
+      while (todo.length > 0) {
+        var current = todo[todo.length - 1]; // peek at the todo stack
+        var processed = current.processed;
+        var node = current.node;
+        if (!processed) {
+          // Haven't visited edges yet (visiting phase)
+          if (visited[node]) {
+            todo.pop();
+            continue;
+          } else if (inCurrentPath[node]) {
+            // It's not a DAG
+            if (circular) {
+              todo.pop();
+              // If we're tolerating cycles, don't revisit the node
+              continue;
+            }
+            currentPath.push(node);
+            throw new DepGraphCycleError(currentPath);
+          }
+  
+          inCurrentPath[node] = true;
+          currentPath.push(node);
+          var nodeEdges = edges[node];
+          // (push edges onto the todo stack in reverse order to be order-compatible with the old DFS implementation)
+          for (var i = nodeEdges.length - 1; i >= 0; i--) {
+            todo.push({ node: nodeEdges[i], processed: false });
+          }
+          current.processed = true;
+        } else {
+          // Have visited edges (stack unrolling phase)
+          todo.pop();
+          currentPath.pop();
+          inCurrentPath[node] = false;
+          visited[node] = true;
+          if (!leavesOnly || edges[node].length === 0) {
+            result.push(node);
+          }
+        }
+      }
+    };
+  }
+  
+  /**
+   * Simple Dependency Graph
+   */
+  var DepGraph = (DepGraph = function DepGraph(opts) {
+    this.nodes = {}; // Node -> Node/Data (treated like a Set)
+    this.outgoingEdges = {}; // Node -> [Dependency Node]
+    this.incomingEdges = {}; // Node -> [Dependant Node]
+    this.circular = opts && !!opts.circular; // Allows circular deps
+  });
+  
+  DepGraph.fromArray = (
+    items,
+    options = { itemId: 'id', parentItemId: 'parent_id' }
+  ) => {
+    const depGraph = new DepGraph();
+  
+    items.forEach((item) => {
+      depGraph.addNode(item[options.itemId], item);
+    });
+    items.forEach((item) => {
+      if (item[options.parentItemId]) {
+        depGraph.addDependency(item[options.parentItemId], item[options.itemId]);
+      }
+    });
+    return depGraph;
+  };
+  
+  DepGraph.prototype = {
+    /**
+     * The number of nodes in the graph.
+     */
+    size: function () {
+      return Object.keys(this.nodes).length;
+    },
+    /**
+     * Add a node to the dependency graph. If a node already exists, this method will do nothing.
+     */
+    addNode: function (node, data) {
+      if (!this.hasNode(node)) {
+        // Checking the arguments length allows the user to add a node with undefined data
+        if (arguments.length === 2) {
+          this.nodes[node] = data;
+        } else {
+          this.nodes[node] = node;
+        }
+        this.outgoingEdges[node] = [];
+        this.incomingEdges[node] = [];
+      }
+    },
+    /**
+     * Remove a node from the dependency graph. If a node does not exist, this method will do nothing.
+     */
+    removeNode: function (node) {
+      if (this.hasNode(node)) {
+        delete this.nodes[node];
+        delete this.outgoingEdges[node];
+        delete this.incomingEdges[node];
+        [this.incomingEdges, this.outgoingEdges].forEach(function (edgeList) {
+          Object.keys(edgeList).forEach(function (key) {
+            var idx = edgeList[key].indexOf(node);
+            if (idx >= 0) {
+              edgeList[key].splice(idx, 1);
+            }
+          }, this);
+        });
+      }
+    },
+    /**
+     * Check if a node exists in the graph
+     */
+    hasNode: function (node) {
+      return this.nodes.hasOwnProperty(node);
+    },
+    /**
+     * Get the data associated with a node name
+     */
+    getNodeData: function (node) {
+      if (this.hasNode(node)) {
+        return this.nodes[node];
+      } else {
+        throw new Error('Node does not exist: ' + node);
+      }
+    },
+  
+    /**
+     * Set the associated data for a given node name. If the node does not exist, this method will throw an error
+     */
+    setNodeData: function (node, data) {
+      if (this.hasNode(node)) {
+        this.nodes[node] = data;
+      } else {
+        throw new Error('Node does not exist: ' + node);
+      }
+    },
+    /**
+     * Add a dependency between two nodes. If either of the nodes does not exist,
+     * an Error will be thrown.
+     */
+    addDependency: function (from, to) {
+      if (!this.hasNode(from)) {
+        throw new Error('Node does not exist: ' + from);
+      }
+      if (!this.hasNode(to)) {
+        throw new Error('Node does not exist: ' + to);
+      }
+      if (this.outgoingEdges[from].indexOf(to) === -1) {
+        this.outgoingEdges[from].push(to);
+      }
+      if (this.incomingEdges[to].indexOf(from) === -1) {
+        this.incomingEdges[to].push(from);
+      }
+      return true;
+    },
+    /**
+     * Remove a dependency between two nodes.
+     */
+    removeDependency: function (from, to) {
+      var idx;
+      if (this.hasNode(from)) {
+        idx = this.outgoingEdges[from].indexOf(to);
+        if (idx >= 0) {
+          this.outgoingEdges[from].splice(idx, 1);
+        }
+      }
+  
+      if (this.hasNode(to)) {
+        idx = this.incomingEdges[to].indexOf(from);
+        if (idx >= 0) {
+          this.incomingEdges[to].splice(idx, 1);
+        }
+      }
+    },
+    /**
+     * Return a clone of the dependency graph. If any custom data is attached
+     * to the nodes, it will only be shallow copied.
+     */
+    clone: function () {
+      var source = this;
+      var result = new DepGraph();
+      var keys = Object.keys(source.nodes);
+      keys.forEach(function (n) {
+        result.nodes[n] = source.nodes[n];
+        result.outgoingEdges[n] = source.outgoingEdges[n].slice(0);
+        result.incomingEdges[n] = source.incomingEdges[n].slice(0);
+      });
+      return result;
+    },
+    /**
+     * Get an array containing the nodes that the specified node depends on (transitively).
+     *
+     * Throws an Error if the graph has a cycle, or the specified node does not exist.
+     *
+     * If `leavesOnly` is true, only nodes that do not depend on any other nodes will be returned
+     * in the array.
+     */
+    dependenciesOf: function (node, leavesOnly) {
+      if (this.hasNode(node)) {
+        var result = [];
+        var DFS = createDFS(
+          this.outgoingEdges,
+          leavesOnly,
+          result,
+          this.circular
+        );
+        DFS(node);
+        var idx = result.indexOf(node);
+        if (idx >= 0) {
+          result.splice(idx, 1);
+        }
+        return result;
+      } else {
+        throw new Error('Node does not exist: ' + node);
+      }
+    },
+    /**
+     * get an array containing the nodes that depend on the specified node (transitively).
+     *
+     * Throws an Error if the graph has a cycle, or the specified node does not exist.
+     *
+     * If `leavesOnly` is true, only nodes that do not have any dependants will be returned in the array.
+     */
+    dependantsOf: function (node, leavesOnly) {
+      if (this.hasNode(node)) {
+        var result = [];
+        var DFS = createDFS(
+          this.incomingEdges,
+          leavesOnly,
+          result,
+          this.circular
+        );
+        DFS(node);
+        var idx = result.indexOf(node);
+        if (idx >= 0) {
+          result.splice(idx, 1);
+        }
+        return result;
+      } else {
+        throw new Error('Node does not exist: ' + node);
+      }
+    },
+    /**
+     * Construct the overall processing order for the dependency graph.
+     *
+     * Throws an Error if the graph has a cycle.
+     *
+     * If `leavesOnly` is true, only nodes that do not depend on any other nodes will be returned.
+     */
+    overallOrder: function (leavesOnly) {
+      var self = this;
+      var result = [];
+      var keys = Object.keys(this.nodes);
+      if (keys.length === 0) {
+        return result; // Empty graph
+      } else {
+        if (!this.circular) {
+          // Look for cycles - we run the DFS starting at all the nodes in case there
+          // are several disconnected subgraphs inside this dependency graph.
+          var CycleDFS = createDFS(this.outgoingEdges, false, [], this.circular);
+          keys.forEach(function (n) {
+            CycleDFS(n);
+          });
+        }
+  
+        var DFS = createDFS(
+          this.outgoingEdges,
+          leavesOnly,
+          result,
+          this.circular
+        );
+        // Find all potential starting points (nodes with nothing depending on them) an
+        // run a DFS starting at these points to get the order
+        keys
+          .filter(function (node) {
+            return self.incomingEdges[node].length === 0;
+          })
+          .forEach(function (n) {
+            DFS(n);
+          });
+  
+        // If we're allowing cycles - we need to run the DFS against any remaining
+        // nodes that did not end up in the initial result (as they are part of a
+        // subgraph that does not have a clear starting point)
+        if (this.circular) {
+          keys
+            .filter(function (node) {
+              return result.indexOf(node) === -1;
+            })
+            .forEach(function (n) {
+              DFS(n);
+            });
+        }
+  
+        return result;
+      }
+    },
+  
+    mapNodes(mapper) {},
+  };
+  
+  /**
+   * Cycle error, including the path of the cycle.
+   */
+  var DepGraphCycleError = (exports.DepGraphCycleError = function (cyclePath) {
+    var message = 'Dependency Cycle Found: ' + cyclePath.join(' -> ');
+    var instance = new Error(message);
+    instance.cyclePath = cyclePath;
+    Object.setPrototypeOf(instance, Object.getPrototypeOf(this));
+    if (Error.captureStackTrace) {
+      Error.captureStackTrace(instance, DepGraphCycleError);
+    }
+    return instance;
+  });
+  DepGraphCycleError.prototype = Object.create(Error.prototype, {
+    constructor: {
+      value: Error,
+      enumerable: false,
+      writable: true,
+      configurable: true,
+    },
+  });
+  Object.setPrototypeOf(DepGraphCycleError, Error);
+  
+  export default DepGraph;

packages/server-nest/src/libs/logic-evaluation/Lexer.js

@@ -0,0 +1,172 @@
+
+const OperationType = {
+  LOGIC: 'LOGIC',
+  STRING: 'STRING',
+  COMPARISON: 'COMPARISON',
+  MATH: 'MATH',
+};
+
+export class Lexer {
+  // operation table
+  static get optable() {
+    return {
+      '=': OperationType.LOGIC,
+      '&': OperationType.LOGIC,
+      '|': OperationType.LOGIC,
+      '?': OperationType.LOGIC,
+      ':': OperationType.LOGIC,
+
+      '\'': OperationType.STRING,
+      '"': OperationType.STRING,
+
+      '!': OperationType.COMPARISON,
+      '>': OperationType.COMPARISON,
+      '<': OperationType.COMPARISON,
+
+      '(': OperationType.MATH,
+      ')': OperationType.MATH,
+      '+': OperationType.MATH,
+      '-': OperationType.MATH,
+      '*': OperationType.MATH,
+      '/': OperationType.MATH,
+      '%': OperationType.MATH,
+    };
+  }
+
+  /**
+   * Constructor
+   * @param {*} expression -
+   */
+  constructor(expression) {
+    this.currentIndex = 0;
+    this.input = expression;
+    this.tokenList = [];
+  }
+
+  getTokens() {
+    let tok;
+    do {
+      // read current token, so step should be -1
+      tok = this.pickNext(-1);
+      const pos = this.currentIndex;
+      switch (Lexer.optable[tok]) {
+        case OperationType.LOGIC:
+          // == && || ===
+          this.readLogicOpt(tok);
+          break;
+
+        case OperationType.STRING:
+          this.readString(tok);
+          break;
+
+        case OperationType.COMPARISON:
+          this.readCompare(tok);
+          break;
+
+        case OperationType.MATH:
+          this.receiveToken();
+          break;
+
+        default:
+          this.readValue(tok);
+      }
+
+      // if the pos not changed, this loop will go into a infinite loop, every step of while loop,
+      // we must move the pos forward
+      // so here we should throw error, for example `1 & 2`
+      if (pos === this.currentIndex && tok !== undefined) {
+        const err = new Error(`unkonw token ${tok} from input string ${this.input}`);
+        err.name = 'UnknowToken';
+        throw err;
+      }
+    } while (tok !== undefined)
+
+    return this.tokenList;
+  }
+
+  /**
+   * read next token, the index param can set next step, default go foward 1 step
+   *
+   * @param index next postion
+   */
+  pickNext(index = 0) {
+    return this.input[index + this.currentIndex + 1];
+  }
+
+  /**
+   * Store token into result tokenList, and move the pos index
+   *
+   * @param index
+   */
+  receiveToken(index = 1) {
+    const tok = this.input.slice(this.currentIndex, this.currentIndex + index).trim();
+    // skip empty string
+    if (tok) {
+      this.tokenList.push(tok);
+    }
+
+    this.currentIndex += index;
+  }
+
+  // ' or "
+  readString(tok) {
+    let next;
+    let index = 0;
+    do {
+      next = this.pickNext(index);
+      index += 1;
+    } while (next !== tok && next !== undefined);
+    this.receiveToken(index + 1);
+  }
+
+  // > or < or >= or <= or !==
+  // tok in (>, <, !)
+  readCompare(tok) {
+    if (this.pickNext() !== '=') {
+      this.receiveToken(1);
+      return;
+    }
+    // !==
+    if (tok === '!' && this.pickNext(1) === '=') {
+      this.receiveToken(3);
+      return;
+    }
+    this.receiveToken(2);
+  }
+
+  // === or ==
+  // && ||
+  readLogicOpt(tok) {
+    if (this.pickNext() === tok) {
+      // ===
+      if (tok === '=' && this.pickNext(1) === tok) {
+        return this.receiveToken(3);
+      }
+      // == && ||
+      return this.receiveToken(2);
+    }
+    // handle as &&
+    // a ? b : c is equal to a && b || c
+    if (tok === '?' || tok === ':') {
+      return this.receiveToken(1);
+    }
+  }
+
+  readValue(tok) {
+    if (!tok) {
+      return;
+    }
+
+    let index = 0;
+    while (!Lexer.optable[tok] && tok !== undefined) {
+      tok = this.pickNext(index);
+      index += 1;
+    }
+    this.receiveToken(index);
+  }
+}
+
+export default function token(expression) {
+  const lexer = new Lexer(expression);
+  return lexer.getTokens();
+}

packages/server-nest/src/libs/logic-evaluation/Parser.js

@@ -0,0 +1,159 @@
+export const OPERATION = {
+  '!': 5,
+  '*': 4,
+  '/': 4,
+  '%': 4,
+  '+': 3,
+  '-': 3,
+  '>': 2,
+  '<': 2,
+  '>=': 2,
+  '<=': 2,
+  '===': 2,
+  '!==': 2,
+  '==': 2,
+  '!=': 2,
+  '&&': 1,
+  '||': 1,
+  '?': 1,
+  ':': 1,
+};
+
+// export interface Node {
+//   left: Node | string | null;
+//   right: Node | string | null;
+//   operation: string;
+//   grouped?: boolean;
+// };
+
+export default class Parser {
+
+  constructor(token) {
+    this.index = -1;
+    this.blockLevel = 0;
+    this.token = token;
+  }
+
+  /**
+   * 
+   * @return {Node | string} =- 
+   */
+  parse() {
+    let tok;
+    let root = {
+      left: null,
+      right: null,
+      operation: null,
+    };
+
+    do {
+      tok = this.parseStatement();
+
+      if (tok === null || tok === undefined) {
+        break;
+      }
+
+      if (root.left === null) {
+        root.left = tok;
+        root.operation = this.nextToken();
+
+        if (!root.operation) {
+          return tok;
+        }
+
+        root.right = this.parseStatement();
+      } else {
+        if (typeof tok !== 'string') {
+          throw new Error('operation must be string, but get ' + JSON.stringify(tok));
+        }
+        root = this.addNode(tok, this.parseStatement(), root);
+      }
+    } while (tok);
+
+    return root;
+  }
+
+  nextToken() {
+    this.index += 1;
+    return this.token[this.index];
+  }
+
+  prevToken() {
+    return this.token[this.index - 1];
+  }
+
+  /**
+   * 
+   * @param {string} operation 
+   * @param {Node|String|null} right 
+   * @param {Node} root 
+   */
+  addNode(operation, right, root) {
+    let pre = root;
+    
+    if (this.compare(pre.operation, operation) < 0 && !pre.grouped) {
+      
+      while (pre.right !== null &&
+        typeof pre.right !== 'string' &&
+        this.compare(pre.right.operation, operation) < 0 && !pre.right.grouped) {
+        pre = pre.right;
+      }
+
+      pre.right = {
+        operation,
+        left: pre.right,
+        right,
+      };
+      return root;
+    }
+    return {
+      left: pre,
+      right,
+      operation,
+    }
+  }
+
+  /**
+   * 
+   * @param {String} a 
+   * @param {String} b 
+   */
+  compare(a, b) {
+    if (!OPERATION.hasOwnProperty(a) || !OPERATION.hasOwnProperty(b)) {
+      throw new Error(`unknow operation ${a} or ${b}`);
+    }
+    return OPERATION[a] - OPERATION[b];
+  }
+
+  /**
+   * @return string | Node | null
+   */
+  parseStatement() {
+    const token = this.nextToken();
+    if (token === '(') {
+      this.blockLevel += 1;
+      const node = this.parse();
+      this.blockLevel -= 1;
+
+      if (typeof node !== 'string') {
+        node.grouped = true;
+      }
+      return node;
+    }
+
+    if (token === ')') {
+      return null;
+    }
+
+    if (token === '!') {
+      return { left: null, operation: token, right: this.parseStatement() }
+    }
+
+    // 3 > -12 or -12 + 10
+    if (token === '-' && (OPERATION[this.prevToken()] > 0 || this.prevToken() === undefined)) {
+      return { left: '0', operation: token, right: this.parseStatement(), grouped: true };
+    }
+
+    return token;
+  }
+}

packages/server-nest/src/libs/logic-evaluation/QueryParser.js

@@ -0,0 +1,61 @@
+import { OPERATION } from './Parser';
+
+export default class QueryParser {
+
+  constructor(tree, queries) {
+    this.tree = tree;
+    this.queries = queries;
+    this.query = null;
+  }
+
+  setQuery(query) {
+    this.query = query.clone();
+  }
+
+  parse() {
+    return this.parseNode(this.tree);
+  }
+
+  parseNode(node) {
+    if (typeof node === 'string') {
+      const nodeQuery = this.getQuery(node);
+      return (query) => { nodeQuery(query); };
+    }
+    if (OPERATION[node.operation] === undefined) {
+      throw new Error(`unknow expression ${node.operation}`);
+    }
+    const leftQuery = this.getQuery(node.left);
+    const rightQuery = this.getQuery(node.right);
+
+    switch (node.operation) {
+      case '&&':
+      case 'AND':
+      default:
+        return (nodeQuery) => nodeQuery.where((query) => {
+          query.where((q) => { leftQuery(q); });
+          query.andWhere((q) => { rightQuery(q); });
+        });
+      case '||':
+      case 'OR':
+        return (nodeQuery) => nodeQuery.where((query) => {
+          query.where((q) => { leftQuery(q); });
+          query.orWhere((q) => { rightQuery(q); });
+        });
+    }
+  }
+
+  getQuery(node) {
+    if (typeof node !== 'string' && node !== null) {
+      return this.parseNode(node);
+    }
+    const value = parseFloat(node);
+
+    if (!isNaN(value)) {
+      if (typeof this.queries[node] === 'undefined') {
+        throw new Error(`unknow query under index ${node}`);
+      }
+      return this.queries[node];
+    }
+    return null;
+  }
+}

packages/server-nest/src/main.ts

@@ -0,0 +1,29 @@
+import { NestFactory } from '@nestjs/core';
+import { DocumentBuilder, SwaggerModule } from '@nestjs/swagger';
+import { ClsMiddleware } from 'nestjs-cls';
+import './utils/moment-mysql';
+import { AppModule } from './modules/App/App.module';
+import { ServiceErrorFilter } from './common/filters/service-error.filter';
+
+async function bootstrap() {
+  const app = await NestFactory.create(AppModule);
+  app.setGlobalPrefix('/api');
+
+  // create and mount the middleware manually here
+  app.use(new ClsMiddleware({}).use);
+
+  const config = new DocumentBuilder()
+    .setTitle('Bigcapital')
+    .setDescription('Financial accounting software')
+    .setVersion('1.0')
+    .addTag('cats')
+    .build();
+
+  const documentFactory = () => SwaggerModule.createDocument(app, config);
+  SwaggerModule.setup('swagger', app, documentFactory);
+
+  app.useGlobalFilters(new ServiceErrorFilter());
+
+  await app.listen(process.env.PORT ?? 3000);
+}
+bootstrap();

packages/server-nest/src/middleware/logger.middleware.ts

@@ -0,0 +1,11 @@
+import { Injectable, NestMiddleware } from '@nestjs/common';
+import { Request, Response, NextFunction } from 'express';
+
+@Injectable()
+export class LoggerMiddleware implements NestMiddleware {
+  use(req: Request, res: Response, next: NextFunction) {
+    // @ts-expect-error
+    req.test = 'test';
+    next();
+  }
+}

packages/server-nest/src/models/Model.ts

@@ -0,0 +1,43 @@
+import { QueryBuilder, Model } from 'objection';
+
+interface PaginationResult<M extends Model> {
+  results: M[];
+  pagination: {
+    total: number;
+    page: number;
+    pageSize: number;
+  };
+}
+
+export type PaginationQueryBuilderType<M extends Model> = QueryBuilder<
+  M,
+  PaginationResult<M>
+>;
+
+class PaginationQueryBuilder<M extends Model, R = M[]> extends QueryBuilder<
+  M,
+  R
+> {
+  pagination(page: number, pageSize: number): PaginationQueryBuilderType<M> {
+    const query = super.page(page, pageSize);
+    
+    return query.runAfter(({ results, total }) => {
+      return {
+        results,
+        pagination: {
+          total,
+          page: page + 1,
+          pageSize,
+        },
+      };
+    }) as unknown as PaginationQueryBuilderType<M>;
+  }
+}
+
+export class BaseModel extends Model {
+  public readonly id: number;
+  public readonly tableName: string;
+
+  QueryBuilderType!: PaginationQueryBuilder<this>;
+  static QueryBuilder = PaginationQueryBuilder;
+}

packages/server-nest/src/modules/Accounts/Account.transformer.ts

@@ -0,0 +1,130 @@
+import { Transformer } from '../Transformer/Transformer';
+import { Account } from './models/Account.model';
+import { flatToNestedArray } from '@/utils/flat-to-nested-array';
+import { assocDepthLevelToObjectTree } from '@/utils/assoc-depth-level-to-object-tree';
+import { nestedArrayToFlatten } from '@/utils/nested-array-to-flatten';
+import { IAccountsStructureType } from './Accounts.types';
+
+export class AccountTransformer extends Transformer {
+  /**
+   * Include these attributes to sale invoice object.
+   * @returns {Array}
+   */
+  public includeAttributes = (): string[] => {
+    return [
+      'accountTypeLabel',
+      'accountNormalFormatted',
+      'formattedAmount',
+      'flattenName',
+      'bankBalanceFormatted',
+      'lastFeedsUpdatedAtFormatted',
+      'isFeedsPaused',
+    ];
+  };
+
+  /**
+   * Exclude attributes.
+   * @returns {string[]}
+   */
+  public excludeAttributes = (): string[] => {
+    return ['plaidItem'];
+  };
+
+  /**
+   * Retrieves the flatten name with all dependants accounts names.
+   * @param {IAccount} account -
+   * @returns {string}
+   */
+  public flattenName = (account: Account): string => {
+    const parentDependantsIds = this.options.accountsGraph.dependantsOf(
+      account.id,
+    );
+    const prefixAccounts = parentDependantsIds.map((dependId) => {
+      const node = this.options.accountsGraph.getNodeData(dependId);
+      return `${node.name}: `;
+    });
+    return `${prefixAccounts}${account.name}`;
+  };
+
+  /**
+   * Retrieve formatted account amount.
+   * @param {IAccount} invoice
+   * @returns {string}
+   */
+  protected formattedAmount = (account: Account): string => {
+    return this.formatNumber(account.amount, {
+      currencyCode: account.currencyCode,
+    });
+  };
+
+  /**
+   * Retrieves the formatted bank balance.
+   * @param {Account} account
+   * @returns {string}
+   */
+  protected bankBalanceFormatted = (account: Account): string => {
+    return this.formatNumber(account.bankBalance, {
+      currencyCode: account.currencyCode,
+    });
+  };
+
+  /**
+   * Retrieves the formatted last feeds update at.
+   * @param {IAccount} account
+   * @returns {string}
+   */
+  protected lastFeedsUpdatedAtFormatted = (account: Account): string => {
+    return account.lastFeedsUpdatedAt
+      ? this.formatDate(account.lastFeedsUpdatedAt)
+      : '';
+  };
+
+  /**
+   * Detarmines whether the bank account connection is paused.
+   * @param account
+   * @returns {boolean}
+   */
+  protected isFeedsPaused = (account: Account): boolean => {
+    // return account.plaidItem?.isPaused || false;
+
+    return false;
+  };
+
+  /**
+   * Retrieves formatted account type label.
+   * @returns {string}
+   */
+  protected accountTypeLabel = (account: Account): string => {
+    return this.context.i18n.t(account.accountTypeLabel);
+  };
+
+  /**
+   * Retrieves formatted account normal.
+   * @returns {string}
+   */
+  protected accountNormalFormatted = (account: Account): string => {
+    return this.context.i18n.t(account.accountNormalFormatted);
+  };
+
+  /**
+   * Transformes the accounts collection to flat or nested array.
+   * @param {IAccount[]}
+   * @returns {IAccount[]}
+   */
+  protected postCollectionTransform = (accounts: Account[]) => {
+    // Transfom the flatten to accounts tree.
+    const transformed = flatToNestedArray(accounts, {
+      id: 'id',
+      parentId: 'parentAccountId',
+    });
+    // Associate `accountLevel` attr to indicate object depth.
+    const transformed2 = assocDepthLevelToObjectTree(
+      transformed,
+      1,
+      'accountLevel',
+    );
+    return this.options.structure === IAccountsStructureType.Flat
+      ? nestedArrayToFlatten(transformed2)
+      : transformed2;
+  };
+}

packages/server-nest/src/modules/Accounts/AccountTransaction.transformer.ts

@@ -0,0 +1,124 @@
+import { Transformer } from '../Transformer/Transformer';
+import { AccountTransaction } from './models/AccountTransaction.model';
+
+export class AccountTransactionTransformer extends Transformer {
+  /**
+   * Include these attributes to sale invoice object.
+   * @returns {Array}
+   */
+  public includeAttributes = (): string[] => {
+    return [
+      'date',
+      'formattedDate',
+      'transactionType',
+      'transactionId',
+      'transactionTypeFormatted',
+      'credit',
+      'debit',
+      'formattedCredit',
+      'formattedDebit',
+      'fcCredit',
+      'fcDebit',
+      'formattedFcCredit',
+      'formattedFcDebit',
+    ];
+  };
+
+  /**
+   * Exclude all attributes of the model.
+   * @returns {Array<string>}
+   */
+  public excludeAttributes = (): string[] => {
+    return ['*'];
+  };
+
+  /**
+   * Retrieves the formatted date.
+   * @returns {string}
+   */
+  public formattedDate(transaction: AccountTransaction) {
+    return this.formatDate(transaction.date);
+  }
+
+  /**
+   * Retrieves the formatted transaction type.
+   * @returns {string}
+   */
+  public transactionTypeFormatted(transaction: AccountTransaction) {
+    return this.context.i18n.t(transaction.referenceTypeFormatted);
+  }
+
+  /**
+   * Retrieves the tranasction type.
+   * @returns {string}
+   */
+  public transactionType(transaction: AccountTransaction) {
+    return transaction.referenceType;
+  }
+
+  /**
+   * Retrieves the transaction id.
+   * @returns {number}
+   */
+  public transactionId(transaction: AccountTransaction) {
+    return transaction.referenceId;
+  }
+
+  /**
+   * Retrieves the credit amount.
+   * @returns {string}
+   */
+  protected formattedCredit(transaction: AccountTransaction) {
+    return this.formatMoney(transaction.credit, {
+      excerptZero: true,
+    });
+  }
+
+  /**
+   * Retrieves the credit amount.
+   * @returns {string}
+   */
+  protected formattedDebit(transaction: AccountTransaction) {
+    return this.formatMoney(transaction.debit, {
+      excerptZero: true,
+    });
+  }
+
+  /**
+   * Retrieves the foreign credit amount.
+   * @returns {number}
+   */
+  protected fcCredit(transaction: AccountTransaction) {
+    return transaction.credit * transaction.exchangeRate;
+  }
+
+  /**
+   * Retrieves the foreign debit amount.
+   * @returns {number}
+   */
+  protected fcDebit(transaction: AccountTransaction) {
+    return transaction.debit * transaction.exchangeRate;
+  }
+
+  /**
+   * Retrieves the formatted foreign credit amount.
+   * @returns {string}
+   */
+  protected formattedFcCredit(transaction: AccountTransaction) {
+    return this.formatMoney(this.fcCredit(transaction), {
+      currencyCode: transaction.currencyCode,
+      excerptZero: true,
+    });
+  }
+
+  /**
+   * Retrieves the formatted foreign debit amount.
+   * @returns {string}
+   */
+  protected formattedFcDebit(transaction: AccountTransaction) {
+    return this.formatMoney(this.fcDebit(transaction), {
+      currencyCode: transaction.currencyCode,
+      excerptZero: true,
+    });
+  }
+}

packages/server-nest/src/modules/Accounts/Accounts.constants.ts

@@ -0,0 +1,637 @@
+export const OtherExpensesAccount = {
+  name: 'Other Expenses',
+  slug: 'other-expenses',
+  account_type: 'other-expense',
+  code: '40011',
+  description: '',
+  active: 1,
+  index: 1,
+  predefined: 1,
+};
+
+export const TaxPayableAccount = {
+  name: 'Tax Payable',
+  slug: 'tax-payable',
+  account_type: 'tax-payable',
+  code: '20006',
+  description: '',
+  active: 1,
+  index: 1,
+  predefined: 1,
+};
+
+export const UnearnedRevenueAccount = {
+  name: 'Unearned Revenue',
+  slug: 'unearned-revenue',
+  account_type: 'other-current-liability',
+  parent_account_id: null,
+  code: '50005',
+  active: true,
+  index: 1,
+  predefined: true,
+};
+
+export const PrepardExpenses = {
+  name: 'Prepaid Expenses',
+  slug: 'prepaid-expenses',
+  account_type: 'other-current-asset',
+  parent_account_id: null,
+  code: '100010',
+  active: true,
+  index: 1,
+  predefined: true,
+};
+
+export const StripeClearingAccount = {
+  name: 'Stripe Clearing',
+  slug: 'stripe-clearing',
+  account_type: 'other-current-asset',
+  parent_account_id: null,
+  code: '100020',
+  active: true,
+  index: 1,
+  predefined: true,
+};
+
+export const DiscountExpenseAccount = {
+  name: 'Discount',
+  slug: 'discount',
+  account_type: 'other-income',
+  code: '40008',
+  active: true,
+  index: 1,
+  predefined: true,
+};
+
+export const PurchaseDiscountAccount = {
+  name: 'Purchase Discount',
+  slug: 'purchase-discount',
+  account_type: 'other-expense',
+  code: '40009',
+  active: true,
+  index: 1,
+  predefined: true,
+};
+
+export const OtherChargesAccount = {
+  name: 'Other Charges',
+  slug: 'other-charges',
+  account_type: 'other-income',
+  code: '40010',
+  active: true,
+  index: 1,
+  predefined: true,
+};
+
+export const SeedAccounts = [
+  {
+    name: 'Bank Account',
+    slug: 'bank-account',
+    account_type: 'bank',
+    code: '10001',
+    description: '',
+    active: 1,
+    index: 1,
+    predefined: 1,
+  },
+  {
+    name: 'Saving Bank Account',
+    slug: 'saving-bank-account',
+    account_type: 'bank',
+    code: '10002',
+    description: '',
+    active: 1,
+    index: 1,
+    predefined: 0,
+  },
+  {
+    name: 'Undeposited Funds',
+    slug: 'undeposited-funds',
+    account_type: 'cash',
+    code: '10003',
+    description: '',
+    active: 1,
+    index: 1,
+    predefined: 1,
+  },
+  {
+    name: 'Petty Cash',
+    slug: 'petty-cash',
+    account_type: 'cash',
+    code: '10004',
+    description: '',
+    active: 1,
+    index: 1,
+    predefined: 1,
+  },
+  {
+    name: 'Computer Equipment',
+    slug: 'computer-equipment',
+    code: '10005',
+    account_type: 'fixed-asset',
+    predefined: 0,
+    parent_account_id: null,
+    index: 1,
+    active: 1,
+    description: '',
+  },
+  {
+    name: 'Office Equipment',
+    slug: 'office-equipment',
+    code: '10006',
+    account_type: 'fixed-asset',
+    predefined: 0,
+    parent_account_id: null,
+    index: 1,
+    active: 1,
+    description: '',
+  },
+  {
+    name: 'Accounts Receivable (A/R)',
+    slug: 'accounts-receivable',
+    account_type: 'accounts-receivable',
+    code: '10007',
+    description: '',
+    active: 1,
+    index: 1,
+    predefined: 1,
+  },
+  {
+    name: 'Inventory Asset',
+    slug: 'inventory-asset',
+    code: '10008',
+    account_type: 'inventory',
+    predefined: 1,
+    parent_account_id: null,
+    index: 1,
+    active: 1,
+    description:
+      'An account that holds valuation of products or goods that available for sale.',
+  },
+
+  // Libilities
+  {
+    name: 'Accounts Payable (A/P)',
+    slug: 'accounts-payable',
+    account_type: 'accounts-payable',
+    parent_account_id: null,
+    code: '20001',
+    description: '',
+    active: 1,
+    index: 1,
+    predefined: 1,
+  },
+  {
+    name: 'Owner A Drawings',
+    slug: 'owner-drawings',
+    account_type: 'other-current-liability',
+    parent_account_id: null,
+    code: '20002',
+    description: 'Withdrawals by the owners.',
+    active: 1,
+    index: 1,
+    predefined: 0,
+  },
+  {
+    name: 'Loan',
+    slug: 'owner-drawings',
+    account_type: 'other-current-liability',
+    code: '20003',
+    description: 'Money that has been borrowed from a creditor.',
+    active: 1,
+    index: 1,
+    predefined: 0,
+  },
+  {
+    name: 'Opening Balance Liabilities',
+    slug: 'opening-balance-liabilities',
+    account_type: 'other-current-liability',
+    code: '20004',
+    description:
+      'This account will hold the difference in the debits and credits entered during the opening balance..',
+    active: 1,
+    index: 1,
+    predefined: 0,
+  },
+  {
+    name: 'Revenue Received in Advance',
+    slug: 'revenue-received-in-advance',
+    account_type: 'other-current-liability',
+    parent_account_id: null,
+    code: '20005',
+    description: 'When customers pay in advance for products/services.',
+    active: 1,
+    index: 1,
+    predefined: 0,
+  },
+  TaxPayableAccount,
+
+  // Equity
+  {
+    name: 'Retained Earnings',
+    slug: 'retained-earnings',
+    account_type: 'equity',
+    code: '30001',
+    description:
+      'Retained earnings tracks net income from previous fiscal years.',
+    active: 1,
+    index: 1,
+    predefined: 1,
+  },
+  {
+    name: 'Opening Balance Equity',
+    slug: 'opening-balance-equity',
+    account_type: 'equity',
+    code: '30002',
+    description:
+      'When you enter opening balances to the accounts, the amounts enter in Opening balance equity. This ensures that you have a correct trial balance sheet for your company, without even specific the second credit or debit entry.',
+    active: 1,
+    index: 1,
+    predefined: 1,
+  },
+  {
+    name: "Owner's Equity",
+    slug: 'owner-equity',
+    account_type: 'equity',
+    code: '30003',
+    description: '',
+    active: 1,
+    index: 1,
+    predefined: 1,
+  },
+  {
+    name: `Drawings`,
+    slug: 'drawings',
+    account_type: 'equity',
+    code: '30003',
+    description:
+      'Goods purchased with the intention of selling these to customers',
+    active: 1,
+    index: 1,
+    predefined: 1,
+  },
+
+  // Expenses
+  OtherExpensesAccount,
+  {
+    name: 'Other Expenses',
+    slug: 'other-expenses',
+    account_type: 'other-expense',
+    parent_account_id: null,
+    code: '40001',
+    description: '',
+    active: 1,
+    index: 1,
+    predefined: 1,
+  },
+  {
+    name: 'Cost of Goods Sold',
+    slug: 'cost-of-goods-sold',
+    account_type: 'cost-of-goods-sold',
+    parent_account_id: null,
+    code: '40002',
+    description: 'Tracks the direct cost of the goods sold.',
+    active: 1,
+    index: 1,
+    predefined: 1,
+  },
+  {
+    name: 'Office expenses',
+    slug: 'office-expenses',
+    account_type: 'expense',
+    parent_account_id: null,
+    code: '40003',
+    description: '',
+    active: 1,
+    index: 1,
+    predefined: 0,
+  },
+  {
+    name: 'Rent',
+    slug: 'rent',
+    account_type: 'expense',
+    parent_account_id: null,
+    code: '40004',
+    description: '',
+    active: 1,
+    index: 1,
+    predefined: 0,
+  },
+  {
+    name: 'Exchange Gain or Loss',
+    slug: 'exchange-grain-loss',
+    account_type: 'other-expense',
+    parent_account_id: null,
+    code: '40005',
+    description: 'Tracks the gain and losses of the exchange differences.',
+    active: 1,
+    index: 1,
+    predefined: 1,
+  },
+  {
+    name: 'Bank Fees and Charges',
+    slug: 'bank-fees-and-charges',
+    account_type: 'expense',
+    parent_account_id: null,
+    code: '40006',
+    description:
+      'Any bank fees levied is recorded into the bank fees and charges account. A bank account maintenance fee, transaction charges, a late payment fee are some examples.',
+    active: 1,
+    index: 1,
+    predefined: 0,
+  },
+  {
+    name: 'Depreciation Expense',
+    slug: 'depreciation-expense',
+    account_type: 'expense',
+    parent_account_id: null,
+    code: '40007',
+    description: '',
+    active: 1,
+    index: 1,
+    predefined: 0,
+  },
+
+  // Income
+  {
+    name: 'Sales of Product Income',
+    slug: 'sales-of-product-income',
+    account_type: 'income',
+    predefined: 1,
+    parent_account_id: null,
+    code: '50001',
+    index: 1,
+    active: 1,
+    description: '',
+  },
+  {
+    name: 'Sales of Service Income',
+    slug: 'sales-of-service-income',
+    account_type: 'income',
+    predefined: 0,
+    parent_account_id: null,
+    code: '50002',
+    index: 1,
+    active: 1,
+    description: '',
+  },
+  {
+    name: 'Uncategorized Income',
+    slug: 'uncategorized-income',
+    account_type: 'income',
+    parent_account_id: null,
+    code: '50003',
+    description: '',
+    active: 1,
+    index: 1,
+    predefined: 1,
+  },
+  {
+    name: 'Other Income',
+    slug: 'other-income',
+    account_type: 'other-income',
+    parent_account_id: null,
+    code: '50004',
+    description:
+      'The income activities are not associated to the core business.',
+    active: 1,
+    index: 1,
+    predefined: 0,
+  },
+  UnearnedRevenueAccount,
+  PrepardExpenses,
+  DiscountExpenseAccount,
+  PurchaseDiscountAccount,
+  OtherChargesAccount,
+];
+
+export const ACCOUNT_TYPE = {
+  CASH: 'cash',
+  BANK: 'bank',
+  ACCOUNTS_RECEIVABLE: 'accounts-receivable',
+  INVENTORY: 'inventory',
+  OTHER_CURRENT_ASSET: 'other-current-asset',
+  FIXED_ASSET: 'fixed-asset',
+  NON_CURRENT_ASSET: 'none-current-asset',
+
+  ACCOUNTS_PAYABLE: 'accounts-payable',
+  CREDIT_CARD: 'credit-card',
+  TAX_PAYABLE: 'tax-payable',
+  OTHER_CURRENT_LIABILITY: 'other-current-liability',
+  LOGN_TERM_LIABILITY: 'long-term-liability',
+  NON_CURRENT_LIABILITY: 'non-current-liability',
+
+  EQUITY: 'equity',
+  INCOME: 'income',
+  OTHER_INCOME: 'other-income',
+  COST_OF_GOODS_SOLD: 'cost-of-goods-sold',
+  EXPENSE: 'expense',
+  OTHER_EXPENSE: 'other-expense',
+};
+
+export const ACCOUNT_PARENT_TYPE = {
+  CURRENT_ASSET: 'current-asset',
+  FIXED_ASSET: 'fixed-asset',
+  NON_CURRENT_ASSET: 'non-current-asset',
+
+  CURRENT_LIABILITY: 'current-liability',
+  LOGN_TERM_LIABILITY: 'long-term-liability',
+  NON_CURRENT_LIABILITY: 'non-current-liability',
+
+  EQUITY: 'equity',
+  EXPENSE: 'expense',
+  INCOME: 'income',
+};
+
+export const ACCOUNT_ROOT_TYPE = {
+  ASSET: 'asset',
+  LIABILITY: 'liability',
+  EQUITY: 'equity',
+  EXPENSE: 'expense',
+  INCOME: 'income',
+};
+
+export const ACCOUNT_NORMAL = {
+  CREDIT: 'credit',
+  DEBIT: 'debit',
+};
+export const ACCOUNT_TYPES = [
+  {
+    label: 'Cash',
+    key: ACCOUNT_TYPE.CASH,
+    normal: ACCOUNT_NORMAL.DEBIT,
+    parentType: ACCOUNT_PARENT_TYPE.CURRENT_ASSET,
+    rootType: ACCOUNT_ROOT_TYPE.ASSET,
+    multiCurrency: true,
+    balanceSheet: true,
+    incomeSheet: false,
+  },
+  {
+    label: 'Bank',
+    key: ACCOUNT_TYPE.BANK,
+    normal: ACCOUNT_NORMAL.DEBIT,
+    parentType: ACCOUNT_PARENT_TYPE.CURRENT_ASSET,
+    rootType: ACCOUNT_ROOT_TYPE.ASSET,
+    multiCurrency: true,
+    balanceSheet: true,
+    incomeSheet: false,
+  },
+  {
+    label: 'Accounts Receivable',
+    key: ACCOUNT_TYPE.ACCOUNTS_RECEIVABLE,
+    normal: ACCOUNT_NORMAL.DEBIT,
+    rootType: ACCOUNT_ROOT_TYPE.ASSET,
+    parentType: ACCOUNT_PARENT_TYPE.CURRENT_ASSET,
+    balanceSheet: true,
+    incomeSheet: false,
+  },
+  {
+    label: 'Inventory',
+    key: ACCOUNT_TYPE.INVENTORY,
+    normal: ACCOUNT_NORMAL.DEBIT,
+    rootType: ACCOUNT_ROOT_TYPE.ASSET,
+    parentType: ACCOUNT_PARENT_TYPE.CURRENT_ASSET,
+    balanceSheet: true,
+    incomeSheet: false,
+  },
+  {
+    label: 'Other Current Asset',
+    key: ACCOUNT_TYPE.OTHER_CURRENT_ASSET,
+    normal: ACCOUNT_NORMAL.DEBIT,
+    rootType: ACCOUNT_ROOT_TYPE.ASSET,
+    parentType: ACCOUNT_PARENT_TYPE.CURRENT_ASSET,
+    balanceSheet: true,
+    incomeSheet: false,
+  },
+  {
+    label: 'Fixed Asset',
+    key: ACCOUNT_TYPE.FIXED_ASSET,
+    normal: ACCOUNT_NORMAL.DEBIT,
+    rootType: ACCOUNT_ROOT_TYPE.ASSET,
+    parentType: ACCOUNT_PARENT_TYPE.FIXED_ASSET,
+    balanceSheet: true,
+    incomeSheet: false,
+  },
+  {
+    label: 'Non-Current Asset',
+    key: ACCOUNT_TYPE.NON_CURRENT_ASSET,
+    normal: ACCOUNT_NORMAL.DEBIT,
+    rootType: ACCOUNT_ROOT_TYPE.ASSET,
+    parentType: ACCOUNT_PARENT_TYPE.FIXED_ASSET,
+    balanceSheet: true,
+    incomeSheet: false,
+  },
+  {
+    label: 'Accounts Payable',
+    key: ACCOUNT_TYPE.ACCOUNTS_PAYABLE,
+    normal: ACCOUNT_NORMAL.CREDIT,
+    rootType: ACCOUNT_ROOT_TYPE.LIABILITY,
+    parentType: ACCOUNT_PARENT_TYPE.CURRENT_LIABILITY,
+    balanceSheet: true,
+    incomeSheet: false,
+  },
+  {
+    label: 'Credit Card',
+    key: ACCOUNT_TYPE.CREDIT_CARD,
+    normal: ACCOUNT_NORMAL.CREDIT,
+    rootType: ACCOUNT_ROOT_TYPE.LIABILITY,
+    parentType: ACCOUNT_PARENT_TYPE.CURRENT_LIABILITY,
+    multiCurrency: true,
+    balanceSheet: true,
+    incomeSheet: false,
+  },
+  {
+    label: 'Tax Payable',
+    key: ACCOUNT_TYPE.TAX_PAYABLE,
+    normal: ACCOUNT_NORMAL.CREDIT,
+    rootType: ACCOUNT_ROOT_TYPE.LIABILITY,
+    parentType: ACCOUNT_PARENT_TYPE.CURRENT_LIABILITY,
+    balanceSheet: true,
+    incomeSheet: false,
+  },
+  {
+    label: 'Other Current Liability',
+    key: ACCOUNT_TYPE.OTHER_CURRENT_LIABILITY,
+    normal: ACCOUNT_NORMAL.CREDIT,
+    rootType: ACCOUNT_ROOT_TYPE.LIABILITY,
+    parentType: ACCOUNT_PARENT_TYPE.CURRENT_LIABILITY,
+    balanceSheet: false,
+    incomeSheet: true,
+  },
+  {
+    label: 'Long Term Liability',
+    key: ACCOUNT_TYPE.LOGN_TERM_LIABILITY,
+    normal: ACCOUNT_NORMAL.CREDIT,
+    rootType: ACCOUNT_ROOT_TYPE.LIABILITY,
+    parentType: ACCOUNT_PARENT_TYPE.LOGN_TERM_LIABILITY,
+    balanceSheet: false,
+    incomeSheet: true,
+  },
+  {
+    label: 'Non-Current Liability',
+    key: ACCOUNT_TYPE.NON_CURRENT_LIABILITY,
+    normal: ACCOUNT_NORMAL.CREDIT,
+    rootType: ACCOUNT_ROOT_TYPE.LIABILITY,
+    parentType: ACCOUNT_PARENT_TYPE.NON_CURRENT_LIABILITY,
+    balanceSheet: false,
+    incomeSheet: true,
+  },
+  {
+    label: 'Equity',
+    key: ACCOUNT_TYPE.EQUITY,
+    normal: ACCOUNT_NORMAL.CREDIT,
+    rootType: ACCOUNT_ROOT_TYPE.EQUITY,
+    parentType: ACCOUNT_PARENT_TYPE.EQUITY,
+    balanceSheet: true,
+    incomeSheet: false,
+  },
+  {
+    label: 'Income',
+    key: ACCOUNT_TYPE.INCOME,
+    normal: ACCOUNT_NORMAL.CREDIT,
+    rootType: ACCOUNT_ROOT_TYPE.INCOME,
+    parentType: ACCOUNT_PARENT_TYPE.INCOME,
+    balanceSheet: false,
+    incomeSheet: true,
+  },
+  {
+    label: 'Other Income',
+    key: ACCOUNT_TYPE.OTHER_INCOME,
+    normal: ACCOUNT_NORMAL.CREDIT,
+    rootType: ACCOUNT_ROOT_TYPE.INCOME,
+    parentType: ACCOUNT_PARENT_TYPE.INCOME,
+    balanceSheet: false,
+    incomeSheet: true,
+  },
+  {
+    label: 'Cost of Goods Sold',
+    key: ACCOUNT_TYPE.COST_OF_GOODS_SOLD,
+    normal: ACCOUNT_NORMAL.DEBIT,
+    rootType: ACCOUNT_ROOT_TYPE.EXPENSE,
+    parentType: ACCOUNT_PARENT_TYPE.EXPENSE,
+    balanceSheet: false,
+    incomeSheet: true,
+  },
+  {
+    label: 'Expense',
+    key: ACCOUNT_TYPE.EXPENSE,
+    normal: ACCOUNT_NORMAL.DEBIT,
+    rootType: ACCOUNT_ROOT_TYPE.EXPENSE,
+    parentType: ACCOUNT_PARENT_TYPE.EXPENSE,
+    balanceSheet: false,
+    incomeSheet: true,
+  },
+  {
+    label: 'Other Expense',
+    key: ACCOUNT_TYPE.OTHER_EXPENSE,
+    normal: ACCOUNT_NORMAL.DEBIT,
+    rootType: ACCOUNT_ROOT_TYPE.EXPENSE,
+    parentType: ACCOUNT_PARENT_TYPE.EXPENSE,
+    balanceSheet: false,
+    incomeSheet: true,
+  },
+];
+
+export const getAccountsSupportsMultiCurrency = () => {
+  return ACCOUNT_TYPES.filter((account) => account.multiCurrency);
+};

packages/server-nest/src/modules/Accounts/Accounts.controller.ts

@@ -0,0 +1,72 @@
+import {
+  Controller,
+  Post,
+  Body,
+  Param,
+  Delete,
+  Get,
+  Query,
+  ParseIntPipe,
+} from '@nestjs/common';
+import { AccountsApplication } from './AccountsApplication.service';
+import { CreateAccountDTO } from './CreateAccount.dto';
+import { EditAccountDTO } from './EditAccount.dto';
+import { PublicRoute } from '../Auth/Jwt.guard';
+import { IAccountsFilter, IAccountsTransactionsFilter } from './Accounts.types';
+// import { IAccountsFilter, IAccountsTransactionsFilter } from './Accounts.types';
+// import { ZodValidationPipe } from '@/common/pipes/ZodValidation.pipe';
+
+@Controller('accounts')
+@PublicRoute()
+export class AccountsController {
+  constructor(private readonly accountsApplication: AccountsApplication) {}
+
+  @Post()
+  async createAccount(@Body() accountDTO: CreateAccountDTO) {
+    return this.accountsApplication.createAccount(accountDTO);
+  }
+
+  @Post(':id')
+  async editAccount(
+    @Param('id', ParseIntPipe) id: number,
+    @Body() accountDTO: EditAccountDTO,
+  ) {
+    return this.accountsApplication.editAccount(id, accountDTO);
+  }
+
+  @Delete(':id')
+  async deleteAccount(@Param('id', ParseIntPipe) id: number) {
+    return this.accountsApplication.deleteAccount(id);
+  }
+
+  @Post(':id/activate')
+  async activateAccount(@Param('id', ParseIntPipe) id: number) {
+    return this.accountsApplication.activateAccount(id);
+  }
+
+  @Post(':id/inactivate')
+  async inactivateAccount(@Param('id', ParseIntPipe) id: number) {
+    return this.accountsApplication.inactivateAccount(id);
+  }
+
+  @Get('types')
+  async getAccountTypes() {
+    return this.accountsApplication.getAccountTypes();
+  }
+
+  @Get('transactions')
+  async getAccountTransactions(@Query() filter: IAccountsTransactionsFilter) {
+    return this.accountsApplication.getAccountsTransactions(filter);
+  }
+
+  @Get(':id')
+  async getAccount(@Param('id', ParseIntPipe) id: number) {
+    return this.accountsApplication.getAccount(id);
+  }
+
+  @Get()
+  async getAccounts(@Query() filter: IAccountsFilter) {
+    return this.accountsApplication.getAccounts(filter);
+  }
+
+}

packages/server-nest/src/modules/Accounts/Accounts.module.ts

@@ -0,0 +1,42 @@
+import { Module } from '@nestjs/common';
+import { TenancyDatabaseModule } from '../Tenancy/TenancyDB/TenancyDB.module';
+import { AccountsController } from './Accounts.controller';
+import { AccountsApplication } from './AccountsApplication.service';
+import { CreateAccountService } from './CreateAccount.service';
+import { TenancyContext } from '../Tenancy/TenancyContext.service';
+import { CommandAccountValidators } from './CommandAccountValidators.service';
+import { AccountRepository } from './repositories/Account.repository';
+import { EditAccount } from './EditAccount.service';
+import { DeleteAccount } from './DeleteAccount.service';
+import { GetAccount } from './GetAccount.service';
+import { TransformerInjectable } from '../Transformer/TransformerInjectable.service';
+import { ActivateAccount } from './ActivateAccount.service';
+import { GetAccountTypesService } from './GetAccountTypes.service';
+import { GetAccountTransactionsService } from './GetAccountTransactions.service';
+import { RegisterTenancyModel } from '../Tenancy/TenancyModels/Tenancy.module';
+import { BankAccount } from '../BankingTransactions/models/BankAccount';
+// import { GetAccountsService } from './GetAccounts.service';
+
+const models = [RegisterTenancyModel(BankAccount)];
+
+@Module({
+  imports: [TenancyDatabaseModule],
+  controllers: [AccountsController],
+  providers: [
+    AccountsApplication,
+    CreateAccountService,
+    TenancyContext,
+    CommandAccountValidators,
+    AccountRepository,
+    EditAccount,
+    DeleteAccount,
+    GetAccount,
+    TransformerInjectable,
+    ActivateAccount,
+    GetAccountTypesService,
+    GetAccountTransactionsService,
+    ...models,
+  ],
+  exports: [AccountRepository, CreateAccountService, ...models],
+})
+export class AccountsModule {}

packages/server-nest/src/modules/Accounts/Accounts.types.ts

@@ -0,0 +1,91 @@
+import { Knex } from 'knex';
+import { Account } from './models/Account.model';
+// import { IDynamicListFilterDTO } from '@/interfaces/DynamicFilter';
+
+export enum AccountNormal {
+  DEBIT = 'debit',
+  CREDIT = 'credit',
+}
+
+export interface IAccountsTransactionsFilter {
+  accountId?: number;
+  limit?: number;
+}
+
+export enum IAccountsStructureType {
+  Tree = 'tree',
+  Flat = 'flat',
+}
+
+// export interface IAccountsFilter extends IDynamicListFilterDTO {
+// }
+export interface IAccountsFilter {
+  onlyInactive: boolean;
+  structure?: IAccountsStructureType;
+}
+export interface IAccountType {
+  label: string;
+  key: string;
+  normal: string;
+  rootType: string;
+  childType: string;
+  balanceSheet: boolean;
+  incomeSheet: boolean;
+}
+
+export interface IAccountsTypesService {
+  getAccountsTypes(): Promise<IAccountType>;
+}
+
+export interface IAccountEventCreatingPayload {
+  accountDTO: any;
+  trx: Knex.Transaction;
+}
+export interface IAccountEventCreatedPayload {
+  account: Account;
+  accountId: number;
+  trx: Knex.Transaction;
+}
+
+export interface IAccountEventEditedPayload {
+  account: Account;
+  oldAccount: Account;
+  trx: Knex.Transaction;
+}
+
+export interface IAccountEventDeletedPayload {
+  accountId: number;
+  oldAccount: Account;
+  trx: Knex.Transaction;
+}
+
+export interface IAccountEventDeletePayload {
+  trx: Knex.Transaction;
+  oldAccount: Account;
+}
+
+export interface IAccountEventActivatedPayload {
+  accountId: number;
+  trx: Knex.Transaction;
+}
+
+export enum AccountAction {
+  CREATE = 'Create',
+  EDIT = 'Edit',
+  DELETE = 'Delete',
+  VIEW = 'View',
+  TransactionsLocking = 'TransactionsLocking',
+}
+
+export enum TaxRateAction {
+  CREATE = 'Create',
+  EDIT = 'Edit',
+  DELETE = 'Delete',
+  VIEW = 'View',
+}
+
+export interface CreateAccountParams {
+  ignoreUniqueName: boolean;
+}
+
+export interface IGetAccountTransactionPOJO {}

packages/server-nest/src/modules/Accounts/AccountsApplication.service.ts

@@ -0,0 +1,123 @@
+import { Knex } from 'knex';
+import { Injectable } from '@nestjs/common';
+import { CreateAccountService } from './CreateAccount.service';
+import { DeleteAccount } from './DeleteAccount.service';
+import { EditAccount } from './EditAccount.service';
+import { CreateAccountDTO } from './CreateAccount.dto';
+import { Account } from './models/Account.model';
+import { EditAccountDTO } from './EditAccount.dto';
+import { GetAccount } from './GetAccount.service';
+import { ActivateAccount } from './ActivateAccount.service';
+import { GetAccountTypesService } from './GetAccountTypes.service';
+import { GetAccountTransactionsService } from './GetAccountTransactions.service';
+import {
+  IAccountsFilter,
+  IAccountsTransactionsFilter,
+  IGetAccountTransactionPOJO,
+} from './Accounts.types';
+import { GetAccountsService } from './GetAccounts.service';
+import { IFilterMeta } from '@/interfaces/Model';
+
+@Injectable()
+export class AccountsApplication {
+  constructor(
+    private readonly createAccountService: CreateAccountService,
+    private readonly editAccountService: EditAccount,
+    private readonly deleteAccountService: DeleteAccount,
+    private readonly activateAccountService: ActivateAccount,
+    private readonly getAccountTypesService: GetAccountTypesService,
+    private readonly getAccountService: GetAccount,
+    private readonly getAccountTransactionsService: GetAccountTransactionsService,
+    private readonly getAccountsService: GetAccountsService,
+  ) {}
+
+  /**
+   * Creates a new account.
+   * @param {number} tenantId
+   * @param {IAccountCreateDTO} accountDTO
+   * @returns {Promise<IAccount>}
+   */
+  public createAccount = (
+    accountDTO: CreateAccountDTO,
+    trx?: Knex.Transaction,
+  ): Promise<Account> => {
+    return this.createAccountService.createAccount(accountDTO, trx);
+  };
+
+  /**
+   * Deletes the given account.
+   * @param {number} tenantId
+   * @param {number} accountId
+   * @returns {Promise<void>}
+   */
+  public deleteAccount = (accountId: number) => {
+    return this.deleteAccountService.deleteAccount(accountId);
+  };
+
+  /**
+   * Edits the given account.
+   * @param {number} tenantId
+   * @param {number} accountId
+   * @param {IAccountEditDTO} accountDTO
+   * @returns
+   */
+  public editAccount = (accountId: number, accountDTO: EditAccountDTO) => {
+    return this.editAccountService.editAccount(accountId, accountDTO);
+  };
+
+  /**
+   * Activate the given account.
+   * @param {number} accountId - Account id.
+   */
+  public activateAccount = (accountId: number) => {
+    return this.activateAccountService.activateAccount(accountId, true);
+  };
+
+  /**
+   * Inactivate the given account.
+   * @param {number} accountId - Account id.
+   */
+  public inactivateAccount = (accountId: number) => {
+    return this.activateAccountService.activateAccount(accountId, false);
+  };
+
+  /**
+   * Retrieves the account details.
+   * @param {number} tenantId - Tenant id.
+   * @param {number} accountId - Account id.
+   * @returns {Promise<IAccount>}
+   */
+  public getAccount = (accountId: number) => {
+    return this.getAccountService.getAccount(accountId);
+  };
+
+  /**
+   * Retrieves all account types.
+   * @returns {Promise<IAccountType[]>}
+   */
+  public getAccountTypes = () => {
+    return this.getAccountTypesService.getAccountsTypes();
+  };
+
+  /**
+   * Retrieves the accounts list.
+   * @param {IAccountsFilter} filterDTO - Filter DTO.
+   * @returns {Promise<{ accounts: IAccountResponse[]; filterMeta: IFilterMeta }>}
+   */
+  public getAccounts = (
+    filterDTO: IAccountsFilter,
+  ): Promise<{ accounts: Account[]; filterMeta: IFilterMeta }> => {
+    return this.getAccountsService.getAccountsList(filterDTO);
+  };
+
+  /**
+   * Retrieves the given account transactions.
+   * @param {IAccountsTransactionsFilter} filter
+   * @returns {Promise<IGetAccountTransactionPOJO[]>}
+   */
+  public getAccountsTransactions = (
+    filter: IAccountsTransactionsFilter,
+  ): Promise<IGetAccountTransactionPOJO[]> => {
+    return this.getAccountTransactionsService.getAccountsTransactions(filter);
+  };
+}

packages/server-nest/src/modules/Accounts/AccountsExportable.service.ts

@@ -0,0 +1,32 @@
+// import { Inject, Service } from 'typedi';
+// import { AccountsApplication } from './AccountsApplication.service';
+// import { Exportable } from '../Export/Exportable';
+// import { IAccountsFilter, IAccountsStructureType } from '@/interfaces';
+// import { EXPORT_SIZE_LIMIT } from '../Export/constants';
+
+// @Service()
+// export class AccountsExportable extends Exportable {
+//   @Inject()
+//   private accountsApplication: AccountsApplication;
+
+//   /**
+//    * Retrieves the accounts data to exportable sheet.
+//    * @param {number} tenantId
+//    * @returns
+//    */
+//   public exportable(tenantId: number, query: IAccountsFilter) {
+//     const parsedQuery = {
+//       sortOrder: 'desc',
+//       columnSortBy: 'created_at',
+//       inactiveMode: false,
+//       ...query,
+//       structure: IAccountsStructureType.Flat,
+//       pageSize: EXPORT_SIZE_LIMIT,
+//       page: 1,
+//     } as IAccountsFilter;
+
+//     return this.accountsApplication
+//       .getAccounts(tenantId, parsedQuery)
+//       .then((output) => output.accounts);
+//   }
+// }

packages/server-nest/src/modules/Accounts/AccountsImportable.SampleData.ts

@@ -0,0 +1,50 @@
+export const AccountsSampleData = [
+  {
+    'Account Name': 'Utilities Expense',
+    'Account Code': 9000,
+    Type: 'Expense',
+    Description: 'Omnis voluptatum consequatur.',
+    Active: 'T',
+    'Currency Code': '',
+  },
+  {
+    'Account Name': 'Unearned Revenue',
+    'Account Code': 9010,
+    Type: 'Long Term Liability',
+    Description: 'Autem odit voluptas nihil unde.',
+    Active: 'T',
+    'Currency Code': '',
+  },
+  {
+    'Account Name': 'Long-Term Debt',
+    'Account Code': 9020,
+    Type: 'Long Term Liability',
+    Description: 'In voluptas cumque exercitationem.',
+    Active: 'T',
+    'Currency Code': '',
+  },
+  {
+    'Account Name': 'Salaries and Wages Expense',
+    'Account Code': 9030,
+    Type: 'Expense',
+    Description: 'Assumenda aspernatur soluta aliquid perspiciatis quasi.',
+    Active: 'T',
+    'Currency Code': '',
+  },
+  {
+    'Account Name': 'Rental Income',
+    'Account Code': 9040,
+    Type: 'Income',
+    Description: 'Omnis possimus amet occaecati inventore.',
+    Active: 'T',
+    'Currency Code': '',
+  },
+  {
+    'Account Name': 'Paypal',
+    'Account Code': 9050,
+    Type: 'Bank',
+    Description: 'In voluptas cumque exercitationem.',
+    Active: 'T',
+    'Currency Code': '',
+  },
+];

packages/server-nest/src/modules/Accounts/AccountsImportable.service.ts

@@ -0,0 +1,45 @@
+// import { Inject, Service } from 'typedi';
+// import { Knex } from 'knex';
+// import { IAccountCreateDTO } from '@/interfaces';
+// import { CreateAccount } from './CreateAccount.service';
+// import { Importable } from '../Import/Importable';
+// import { AccountsSampleData } from './AccountsImportable.SampleData';
+
+// @Service()
+// export class AccountsImportable extends Importable {
+//   @Inject()
+//   private createAccountService: CreateAccount;
+
+//   /**
+//    * Importing to account service.
+//    * @param {number} tenantId
+//    * @param {IAccountCreateDTO} createAccountDTO
+//    * @returns
+//    */
+//   public importable(
+//     tenantId: number,
+//     createAccountDTO: IAccountCreateDTO,
+//     trx?: Knex.Transaction
+//   ) {
+//     return this.createAccountService.createAccount(
+//       tenantId,
+//       createAccountDTO,
+//       trx
+//     );
+//   }
+
+//   /**
+//    * Concurrrency controlling of the importing process.
+//    * @returns {number}
+//    */
+//   public get concurrency() {
+//     return 1;
+//   }
+
+//   /**
+//    * Retrieves the sample data that used to download accounts sample sheet. 
+//    */
+//   public sampleData(): any[] {
+//     return AccountsSampleData;
+//   }
+// }

packages/server-nest/src/modules/Accounts/ActivateAccount.service.ts

@@ -0,0 +1,53 @@
+import { Inject, Injectable } from '@nestjs/common';
+import { Knex } from 'knex';
+import { IAccountEventActivatedPayload } from './Accounts.types';
+import { Account } from './models/Account.model';
+import { AccountRepository } from './repositories/Account.repository';
+import { UnitOfWork } from '../Tenancy/TenancyDB/UnitOfWork.service';
+import { EventEmitter2 } from '@nestjs/event-emitter';
+import { events } from '@/common/events/events';
+
+@Injectable()
+export class ActivateAccount {
+  constructor(
+    private readonly eventEmitter: EventEmitter2,
+    private readonly uow: UnitOfWork,
+
+    @Inject(Account.name)
+    private readonly accountModel: typeof Account,
+    private readonly accountRepository: AccountRepository,
+  ) {}
+
+  /**
+   * Activates/Inactivates the given account.
+   * @param {number} accountId
+   * @param {boolean} activate
+   */
+  public activateAccount = async (accountId: number, activate?: boolean) => {
+    // Retrieve the given account or throw not found error.
+    const oldAccount = await this.accountModel
+      .query()
+      .findById(accountId)
+      .throwIfNotFound();
+
+    // Get all children accounts.
+    const accountsGraph = await this.accountRepository.getDependencyGraph();
+    const dependenciesAccounts = accountsGraph.dependenciesOf(accountId);
+
+    const patchAccountsIds = [...dependenciesAccounts, accountId];
+
+    // Activate account and associated transactions under unit-of-work environment.
+    return this.uow.withTransaction(async (trx: Knex.Transaction) => {
+      // Activate and inactivate the given accounts ids.
+      activate
+        ? await this.accountRepository.activateByIds(patchAccountsIds, trx)
+        : await this.accountRepository.inactivateByIds(patchAccountsIds, trx);
+
+      // Triggers `onAccountActivated` event.
+      this.eventEmitter.emitAsync(events.accounts.onActivated, {
+        accountId,
+        trx,
+      } as IAccountEventActivatedPayload);
+    });
+  };
+}

packages/server-nest/src/modules/Accounts/CommandAccountValidators.service.ts

@@ -0,0 +1,223 @@
+// @ts-nocheck
+import { Inject, Injectable, Scope } from '@nestjs/common';
+// import { IAccountDTO, IAccount, IAccountCreateDTO } from './Accounts.types';
+// import AccountTypesUtils from '@/lib/AccountTypes';
+import { ServiceError } from '../Items/ServiceError';
+import { ERRORS, MAX_ACCOUNTS_CHART_DEPTH } from './constants';
+import { Account } from './models/Account.model';
+import { AccountRepository } from './repositories/Account.repository';
+import { AccountTypesUtils } from './utils/AccountType.utils';
+import { CreateAccountDTO } from './CreateAccount.dto';
+import { EditAccountDTO } from './EditAccount.dto';
+
+@Injectable({ scope: Scope.REQUEST })
+export class CommandAccountValidators {
+  constructor(
+    @Inject(Account.name)
+    private readonly accountModel: typeof Account,
+    private readonly accountRepository: AccountRepository,
+  ) {}
+
+  /**
+   * Throws error if the account was prefined.
+   * @param {Account} account
+   */
+  public throwErrorIfAccountPredefined(account: Account) {
+    if (account.predefined) {
+      throw new ServiceError(ERRORS.ACCOUNT_PREDEFINED);
+    }
+  }
+
+  /**
+   * Diff account type between new and old account, throw service error
+   * if they have different account type.
+   * @param {Account|CreateAccountDTO|EditAccountDTO} oldAccount
+   * @param {Account|CreateAccountDTO|EditAccountDTO} newAccount
+   */
+  public async isAccountTypeChangedOrThrowError(
+    oldAccount: Account | CreateAccountDTO | EditAccountDTO,
+    newAccount: Account | CreateAccountDTO | EditAccountDTO,
+  ) {
+    if (oldAccount.accountType !== newAccount.accountType) {
+      throw new ServiceError(ERRORS.ACCOUNT_TYPE_NOT_ALLOWED_TO_CHANGE);
+    }
+  }
+
+  /**
+   * Retrieve account type or throws service error.
+   * @param {string} accountTypeKey -
+   * @return {IAccountType}
+   */
+  public getAccountTypeOrThrowError(accountTypeKey: string) {
+    const accountType = AccountTypesUtils.getType(accountTypeKey);
+
+    if (!accountType) {
+      throw new ServiceError(ERRORS.ACCOUNT_TYPE_NOT_FOUND);
+    }
+    return accountType;
+  }
+
+  /**
+   * Retrieve parent account or throw service error.
+   * @param {number} accountId - Account id.
+   * @param {number} notAccountId - Ignore the account id.
+   */
+  public async getParentAccountOrThrowError(
+    accountId: number,
+    notAccountId?: number,
+  ) {
+    const parentAccount = await this.accountModel
+      .query()
+      .findById(accountId)
+      .onBuild((query) => {
+        if (notAccountId) {
+          query.whereNot('id', notAccountId);
+        }
+      });
+    if (!parentAccount) {
+      throw new ServiceError(ERRORS.PARENT_ACCOUNT_NOT_FOUND);
+    }
+    return parentAccount;
+  }
+
+  /**
+   * Throws error if the account type was not unique on the storage.
+   * @param {string} accountCode - Account code.
+   * @param {number} notAccountId - Ignore the account id.
+   */
+  public async isAccountCodeUniqueOrThrowError(
+    accountCode: string,
+    notAccountId?: number,
+  ) {
+    const account = await this.accountModel
+      .query()
+      .where('code', accountCode)
+      .onBuild((query) => {
+        if (notAccountId) {
+          query.whereNot('id', notAccountId);
+        }
+      });
+    if (account.length > 0) {
+      throw new ServiceError(
+        ERRORS.ACCOUNT_CODE_NOT_UNIQUE,
+        'Account code is not unique.',
+      );
+    }
+  }
+
+  /**
+   * Validates the account name uniquiness.
+   * @param {string} accountName - Account name.
+   * @param {number} notAccountId - Ignore the account id.
+   */
+  public async validateAccountNameUniquiness(
+    accountName: string,
+    notAccountId?: number,
+  ) {
+    const foundAccount = await this.accountModel
+      .query()
+      .findOne('name', accountName)
+      .onBuild((query) => {
+        if (notAccountId) {
+          query.whereNot('id', notAccountId);
+        }
+      });
+    if (foundAccount) {
+      throw new ServiceError(
+        ERRORS.ACCOUNT_NAME_NOT_UNIQUE,
+        'Account name is not unique.',
+      );
+    }
+  }
+
+  /**
+   * Validates the given account type supports multi-currency.
+   * @param {CreateAccountDTO | EditAccountDTO} accountDTO -
+   */
+  public validateAccountTypeSupportCurrency = (
+    accountDTO: CreateAccountDTO | EditAccountDTO,
+    baseCurrency: string,
+  ) => {
+    // Can't continue to validate the type has multi-currency feature
+    // if the given currency equals the base currency or not assigned.
+    if (accountDTO.currencyCode === baseCurrency || !accountDTO.currencyCode) {
+      return;
+    }
+    const meta = AccountTypesUtils.getType(accountDTO.accountType);
+
+    // Throw error if the account type does not support multi-currency.
+    if (!meta?.multiCurrency) {
+      throw new ServiceError(ERRORS.ACCOUNT_TYPE_NOT_SUPPORTS_MULTI_CURRENCY);
+    }
+  };
+
+  /**
+   * Validates the account DTO currency code whether equals the currency code of
+   * parent account.
+   * @param {CreateAccountDTO | EditAccountDTO} accountDTO
+   * @param {Account} parentAccount
+   * @param {string} baseCurrency -
+   * @throws {ServiceError(ERRORS.ACCOUNT_CURRENCY_NOT_SAME_PARENT_ACCOUNT)}
+   */
+  public validateCurrentSameParentAccount = (
+    accountDTO: CreateAccountDTO | EditAccountDTO,
+    parentAccount: Account,
+    baseCurrency: string,
+  ) => {
+    // If the account DTO currency not assigned and the parent account has no base currency.
+    if (
+      !accountDTO.currencyCode &&
+      parentAccount.currencyCode !== baseCurrency
+    ) {
+      throw new ServiceError(ERRORS.ACCOUNT_CURRENCY_NOT_SAME_PARENT_ACCOUNT);
+    }
+    // If the account DTO is assigned and not equals the currency code of parent account.
+    if (
+      accountDTO.currencyCode &&
+      parentAccount.currencyCode !== accountDTO.currencyCode
+    ) {
+      throw new ServiceError(ERRORS.ACCOUNT_CURRENCY_NOT_SAME_PARENT_ACCOUNT);
+    }
+  };
+
+  /**
+   * Throws service error if parent account has different type.
+   * @param {IAccountDTO} accountDTO
+   * @param {IAccount} parentAccount
+   */
+  public throwErrorIfParentHasDiffType(
+    accountDTO: CreateAccountDTO | EditAccountDTO,
+    parentAccount: Account,
+  ) {
+    if (accountDTO.accountType !== parentAccount.accountType) {
+      throw new ServiceError(ERRORS.PARENT_ACCOUNT_HAS_DIFFERENT_TYPE);
+    }
+  }
+
+  /**
+   * Retrieve account of throw service error in case account not found.
+   * @param {number} accountId
+   * @return {IAccount}
+   */
+  public async getAccountOrThrowError(accountId: number) {
+    const account = await this.accountRepository.findOneById(accountId);
+
+    if (!account) {
+      throw new ServiceError(ERRORS.ACCOUNT_NOT_FOUND);
+    }
+    return account;
+  }
+
+  /**
+   * Validates the max depth level of accounts chart.
+   * @param {number} parentAccountId - Parent account id.
+   */
+  public async validateMaxParentAccountDepthLevels(parentAccountId: number) {
+    const accountsGraph = await this.accountRepository.getDependencyGraph();
+    const parentDependantsIds = accountsGraph.dependantsOf(parentAccountId);
+
+    if (parentDependantsIds.length >= MAX_ACCOUNTS_CHART_DEPTH) {
+      throw new ServiceError(ERRORS.PARENT_ACCOUNT_EXCEEDED_THE_DEPTH_LEVEL);
+    }
+  }
+}

packages/server-nest/src/modules/Accounts/CreateAccount.dto.ts

@@ -0,0 +1,51 @@
+import {
+  IsString,
+  IsOptional,
+  IsInt,
+  MinLength,
+  MaxLength,
+  IsBoolean,
+} from 'class-validator';
+
+export class CreateAccountDTO {
+  @IsString()
+  @MinLength(3)
+  @MaxLength(255) // Assuming DATATYPES_LENGTH.STRING is 255
+  name: string;
+
+  @IsOptional()
+  @IsString()
+  @MinLength(3)
+  @MaxLength(6)
+  code?: string;
+
+  @IsOptional()
+  @IsString()
+  currencyCode?: string;
+
+  @IsString()
+  @MinLength(3)
+  @MaxLength(255) // Assuming DATATYPES_LENGTH.STRING is 255
+  accountType: string;
+
+  @IsOptional()
+  @IsString()
+  @MaxLength(65535) // Assuming DATATYPES_LENGTH.TEXT is 65535
+  description?: string;
+
+  @IsOptional()
+  @IsInt()
+  parentAccountId?: number;
+
+  @IsOptional()
+  @IsBoolean()
+  active?: boolean;
+
+  @IsOptional()
+  @IsString()
+  plaidAccountId?: string;
+
+  @IsOptional()
+  @IsString()
+  plaidItemId?: string;
+}

packages/server-nest/src/modules/Accounts/CreateAccount.service.ts

@@ -0,0 +1,139 @@
+
+import { Inject, Injectable } from '@nestjs/common';
+import { kebabCase } from 'lodash';
+import { Knex } from 'knex';
+import { EventEmitter2 } from '@nestjs/event-emitter';
+import {
+  // IAccount,
+  // IAccountEventCreatedPayload,
+  // IAccountCreateDTO,
+  IAccountEventCreatingPayload,
+  CreateAccountParams,
+} from './Accounts.types';
+import { CommandAccountValidators } from './CommandAccountValidators.service';
+import { Account } from './models/Account.model';
+import { UnitOfWork } from '../Tenancy/TenancyDB/UnitOfWork.service';
+import { TenancyContext } from '../Tenancy/TenancyContext.service';
+import { events } from '@/common/events/events';
+import { CreateAccountDTO } from './CreateAccount.dto';
+
+@Injectable()
+export class CreateAccountService {
+  constructor(
+    @Inject(Account.name)
+    private readonly accountModel: typeof Account,
+    private readonly eventEmitter: EventEmitter2,
+    private readonly uow: UnitOfWork,
+    private readonly validator: CommandAccountValidators,
+    private readonly tenancyContext: TenancyContext,
+  ) {}
+
+  /**
+   * Authorize the account creation.
+   * @param {CreateAccountDTO} accountDTO
+   */
+  private authorize = async (
+    accountDTO: CreateAccountDTO,
+    baseCurrency: string,
+    params?: CreateAccountParams,
+  ) => {
+    // Validate account name uniquiness.
+    if (!params.ignoreUniqueName) {
+      await this.validator.validateAccountNameUniquiness(accountDTO.name);
+    }
+    // Validate the account code uniquiness.
+    if (accountDTO.code) {
+      await this.validator.isAccountCodeUniqueOrThrowError(accountDTO.code);
+    }
+    // Retrieve the account type meta or throw service error if not found.
+    this.validator.getAccountTypeOrThrowError(accountDTO.accountType);
+
+    // Ingore the parent account validation if not presented.
+    if (accountDTO.parentAccountId) {
+      const parentAccount = await this.validator.getParentAccountOrThrowError(
+        accountDTO.parentAccountId,
+      );
+      this.validator.throwErrorIfParentHasDiffType(accountDTO, parentAccount);
+
+      // Inherit active status from parent account.
+      accountDTO.active = parentAccount.active;
+
+      // Validate should currency code be the same currency of parent account.
+      this.validator.validateCurrentSameParentAccount(
+        accountDTO,
+        parentAccount,
+        baseCurrency,
+      );
+      // Validates the max depth level of accounts chart.
+      await this.validator.validateMaxParentAccountDepthLevels(
+        accountDTO.parentAccountId,
+      );
+    }
+    // Validates the given account type supports the multi-currency.
+    this.validator.validateAccountTypeSupportCurrency(accountDTO, baseCurrency);
+  };
+
+  /**
+   * Transformes the create account DTO to input model.
+   * @param {IAccountCreateDTO} createAccountDTO
+   */
+  private transformDTOToModel = (
+    createAccountDTO: CreateAccountDTO,
+    baseCurrency: string,
+  ) => {
+    return {
+      ...createAccountDTO,
+      slug: kebabCase(createAccountDTO.name),
+      currencyCode: createAccountDTO.currencyCode || baseCurrency,
+
+      // Mark the account is Plaid owner since Plaid item/account is defined on creating.
+      isSyncingOwner: Boolean(
+        createAccountDTO.plaidAccountId || createAccountDTO.plaidItemId,
+      ),
+    };
+  };
+
+  /**
+   * Creates a new account on the storage.
+   * @param {IAccountCreateDTO} accountDTO
+   * @returns {Promise<IAccount>}
+   */
+  public createAccount = async (
+    accountDTO: CreateAccountDTO,
+    trx?: Knex.Transaction,
+    params: CreateAccountParams = { ignoreUniqueName: false },
+  ): Promise<Account> => {
+    // Retrieves the given tenant metadata.
+    const tenant = await this.tenancyContext.getTenant(true);
+
+    // Authorize the account creation.
+    await this.authorize(accountDTO, tenant.metadata.baseCurrency, params);
+
+    // Transformes the DTO to model.
+    const accountInputModel = this.transformDTOToModel(
+      accountDTO,
+      tenant.metadata.baseCurrency,
+    );
+    // Creates a new account with associated transactions under unit-of-work envirement.
+    return this.uow.withTransaction(async (trx: Knex.Transaction) => {
+      // Triggers `onAccountCreating` event.
+      await this.eventEmitter.emitAsync(events.accounts.onCreating, {
+        accountDTO,
+        trx,
+      } as IAccountEventCreatingPayload);
+
+      // Inserts account to the storage.
+      const account = await this.accountModel.query().insert({
+        ...accountInputModel,
+      });
+      // Triggers `onAccountCreated` event.
+      // await this.eventEmitter.emitAsync(events.accounts.onCreated, {
+      //   account,
+      //   accountId: account.id,
+      //   trx,
+      // } as IAccountEventCreatedPayload);
+
+      return account;
+    }, trx);
+  };
+}

packages/server-nest/src/modules/Accounts/DeleteAccount.service.ts

@@ -0,0 +1,80 @@
+import { Knex } from 'knex';
+import { Inject, Injectable } from '@nestjs/common';
+// import { IAccountEventDeletedPayload } from '@/interfaces';
+import { CommandAccountValidators } from './CommandAccountValidators.service';
+import { Account } from './models/Account.model';
+import { EventEmitter2 } from '@nestjs/event-emitter';
+import { UnitOfWork } from '../Tenancy/TenancyDB/UnitOfWork.service';
+import { events } from '@/common/events/events';
+import { IAccountEventDeletedPayload } from './Accounts.types';
+
+@Injectable()
+export class DeleteAccount {
+  constructor(
+    @Inject(Account.name) private accountModel: typeof Account,
+    private eventEmitter: EventEmitter2,
+    private uow: UnitOfWork,
+    private validator: CommandAccountValidators,
+  ) {}
+
+  /**
+   * Authorize account delete.
+   * @param {number} accountId - Account id.
+   */
+  private authorize = async (accountId: number, oldAccount: Account) => {
+    // Throw error if the account was predefined.
+    this.validator.throwErrorIfAccountPredefined(oldAccount);
+  };
+
+  /**
+   * Unlink the given parent account with children accounts.
+   * @param {number|number[]} parentAccountId -
+   */
+  private async unassociateChildrenAccountsFromParent(
+    parentAccountId: number | number[],
+    trx?: Knex.Transaction,
+  ) {
+    const accountsIds = Array.isArray(parentAccountId)
+      ? parentAccountId
+      : [parentAccountId];
+
+    await this.accountModel
+      .query(trx)
+      .whereIn('parent_account_id', accountsIds)
+      .patch({ parent_account_id: null });
+  }
+
+  /**
+   * Deletes the account from the storage.
+   * @param {number} accountId
+   */
+  public deleteAccount = async (accountId: number): Promise<void> => {
+    // Retrieve account or not found service error.
+    const oldAccount = await this.accountModel.query().findById(accountId);
+
+    // Authorize before delete account.
+    await this.authorize(accountId, oldAccount);
+
+    // Deletes the account and associated transactions under UOW environment.
+    return this.uow.withTransaction(async (trx: Knex.Transaction) => {
+      // Triggers `onAccountDelete` event.
+      await this.eventEmitter.emitAsync(events.accounts.onDelete, {
+        trx,
+        oldAccount,
+      } as IAccountEventDeletedPayload);
+
+      // Unlink the parent account from children accounts.
+      await this.unassociateChildrenAccountsFromParent(accountId, trx);
+
+      // Deletes account by the given id.
+      await this.accountModel.query(trx).deleteById(accountId);
+
+      // Triggers `onAccountDeleted` event.
+      await this.eventEmitter.emitAsync(events.accounts.onDeleted, {
+        accountId,
+        oldAccount,
+        trx,
+      } as IAccountEventDeletedPayload);
+    });
+  };
+}

packages/server-nest/src/modules/Accounts/EditAccount.dto.ts

@@ -0,0 +1,34 @@
+import {
+  IsString,
+  IsOptional,
+  IsInt,
+  MinLength,
+  MaxLength,
+} from 'class-validator';
+
+export class EditAccountDTO {
+  @IsString()
+  @MinLength(3)
+  @MaxLength(255) // Assuming DATATYPES_LENGTH.STRING is 255
+  name: string;
+
+  @IsOptional()
+  @IsString()
+  @MinLength(3)
+  @MaxLength(6)
+  code?: string;
+
+  @IsString()
+  @MinLength(3)
+  @MaxLength(255) // Assuming DATATYPES_LENGTH.STRING is 255
+  accountType: string;
+
+  @IsOptional()
+  @IsString()
+  @MaxLength(65535) // Assuming DATATYPES_LENGTH.TEXT is 65535
+  description?: string;
+
+  @IsOptional()
+  @IsInt()
+  parentAccountId?: number;
+}

packages/server-nest/src/modules/Accounts/EditAccount.service.ts

@@ -0,0 +1,100 @@
+import { Inject, Injectable } from '@nestjs/common';
+import { Knex } from 'knex';
+import { CommandAccountValidators } from './CommandAccountValidators.service';
+import { Account } from './models/Account.model';
+import { EventEmitter2 } from '@nestjs/event-emitter';
+import { UnitOfWork } from '../Tenancy/TenancyDB/UnitOfWork.service';
+import { events } from '@/common/events/events';
+import { EditAccountDTO } from './EditAccount.dto';
+
+@Injectable()
+export class EditAccount {
+  constructor(
+    private readonly eventEmitter: EventEmitter2,
+    private readonly uow: UnitOfWork,
+    private readonly validator: CommandAccountValidators,
+
+    @Inject(Account.name)
+    private readonly accountModel: typeof Account,
+  ) {}
+
+  /**
+   * Authorize the account editing.
+   * @param {number} accountId
+   * @param {IAccountEditDTO} accountDTO
+   * @param {IAccount} oldAccount -
+   */
+  private authorize = async (
+    accountId: number,
+    accountDTO: EditAccountDTO,
+    oldAccount: Account,
+  ) => {
+    // Validate account name uniquiness.
+    await this.validator.validateAccountNameUniquiness(
+      accountDTO.name,
+      accountId,
+    );
+    // Validate the account type should be not mutated.
+    await this.validator.isAccountTypeChangedOrThrowError(
+      oldAccount,
+      accountDTO,
+    );
+    // Validate the account code not exists on the storage.
+    if (accountDTO.code && accountDTO.code !== oldAccount.code) {
+      await this.validator.isAccountCodeUniqueOrThrowError(
+        accountDTO.code,
+        oldAccount.id,
+      );
+    }
+    // Retrieve the parent account of throw not found service error.
+    if (accountDTO.parentAccountId) {
+      const parentAccount = await this.validator.getParentAccountOrThrowError(
+        accountDTO.parentAccountId,
+        oldAccount.id,
+      );
+      this.validator.throwErrorIfParentHasDiffType(accountDTO, parentAccount);
+    }
+  };
+
+  /**
+   * Edits details of the given account.
+   * @param {number} accountId
+   * @param {IAccountDTO} accountDTO
+   */
+  public async editAccount(
+    accountId: number,
+    accountDTO: EditAccountDTO,
+  ): Promise<Account> {
+    // Retrieve the old account or throw not found service error.
+    const oldAccount = await this.accountModel
+      .query()
+      .findById(accountId)
+      .throwIfNotFound();
+
+    // Authorize the account editing.
+    await this.authorize(accountId, accountDTO, oldAccount);
+
+    // Edits account and associated transactions under unit-of-work environment.
+    return this.uow.withTransaction(async (trx: Knex.Transaction) => {
+      // Triggers `onAccountEditing` event.
+      await this.eventEmitter.emitAsync(events.accounts.onEditing, {
+        oldAccount,
+        accountDTO,
+      });
+      // Update the account on the storage.
+      const account = await this.accountModel
+        .query(trx)
+        .findById(accountId)
+        .updateAndFetch({ ...accountDTO });
+
+      // Triggers `onAccountEdited` event.
+      // await this.eventEmitter.emitAsync(events.accounts.onEdited, {
+      //   account,
+      //   oldAccount,
+      //   trx,
+      // } as IAccountEventEditedPayload);
+
+      return account;
+    });
+  }
+}

packages/server-nest/src/modules/Accounts/GetAccount.service.ts

@@ -0,0 +1,46 @@
+import { Inject, Injectable } from '@nestjs/common';
+import { AccountTransformer } from './Account.transformer';
+import { Account } from './models/Account.model';
+import { AccountRepository } from './repositories/Account.repository';
+import { TransformerInjectable } from '../Transformer/TransformerInjectable.service';
+import { EventEmitter2 } from '@nestjs/event-emitter';
+import { events } from '@/common/events/events';
+
+@Injectable()
+export class GetAccount {
+  constructor(
+    @Inject(Account.name)
+    private readonly accountModel: typeof Account,
+    private readonly accountRepository: AccountRepository,
+    private readonly transformer: TransformerInjectable,
+    private readonly eventEmitter: EventEmitter2,
+  ) {}
+
+  /**
+   * Retrieve the given account details.
+   * @param {number} accountId
+   */
+  public getAccount = async (accountId: number) => {
+    // Find the given account or throw not found error.
+    const account = await this.accountModel
+      .query()
+      .findById(accountId)
+      .withGraphFetched('plaidItem')
+      .throwIfNotFound();
+
+    const accountsGraph = await this.accountRepository.getDependencyGraph();
+
+    // Transforms the account model to POJO.
+    const transformed = await this.transformer.transform(
+      account,
+      new AccountTransformer(),
+      { accountsGraph },
+    );
+    const eventPayload = { accountId };
+
+    // Triggers `onAccountViewed` event.
+    await this.eventEmitter.emitAsync(events.accounts.onViewed, eventPayload);
+
+    return transformed;
+  };
+}

packages/server-nest/src/modules/Accounts/GetAccountTransactions.service.ts

@@ -0,0 +1,52 @@
+import {
+  IAccountsTransactionsFilter,
+  IGetAccountTransactionPOJO,
+} from './Accounts.types';
+import { AccountTransactionTransformer } from './AccountTransaction.transformer';
+import { AccountTransaction } from './models/AccountTransaction.model';
+import { Account } from './models/Account.model';
+import { Inject, Injectable } from '@nestjs/common';
+import { TransformerInjectable } from '../Transformer/TransformerInjectable.service';
+
+@Injectable()
+export class GetAccountTransactionsService {
+  constructor(
+    private readonly transformer: TransformerInjectable,
+
+    @Inject(AccountTransaction.name)
+    private readonly accountTransaction: typeof AccountTransaction,
+
+    @Inject(Account.name)
+    private readonly account: typeof Account,
+  ) {}
+
+  /**
+   * Retrieve the accounts transactions.
+   * @param {IAccountsTransactionsFilter} filter -
+   */
+  public getAccountsTransactions = async (
+    filter: IAccountsTransactionsFilter,
+  ): Promise<IGetAccountTransactionPOJO[]> => {
+    // Retrieve the given account or throw not found error.
+    if (filter.accountId) {
+      await this.account.query().findById(filter.accountId).throwIfNotFound();
+    }
+    const transactions = await this.accountTransaction
+      .query()
+      .onBuild((query) => {
+        query.orderBy('date', 'DESC');
+
+        if (filter.accountId) {
+          query.where('account_id', filter.accountId);
+        }
+        query.withGraphFetched('account');
+        query.withGraphFetched('contact');
+        query.limit(filter.limit || 50);
+      });
+    // Transform the account transaction.
+    return this.transformer.transform(
+      transactions,
+      new AccountTransactionTransformer(),
+    );
+  };
+}

packages/server-nest/src/modules/Accounts/GetAccountTypes.service.ts

@@ -0,0 +1,17 @@
+// import { IAccountType } from './Accounts.types';
+import { Injectable } from '@nestjs/common';
+import { AccountTypesUtils } from './utils/AccountType.utils';
+
+@Injectable()
+export class GetAccountTypesService {
+  /**
+   * Retrieve all accounts types.
+   * @param {number} tenantId - 
+   * @return {IAccountType}
+   */
+  public getAccountsTypes() {
+    const accountTypes = AccountTypesUtils.getList();
+
+    return accountTypes;
+  }
+}

packages/server-nest/src/modules/Accounts/GetAccounts.service.ts

@@ -0,0 +1,66 @@
+import { Inject, Injectable } from '@nestjs/common';
+import * as R from 'ramda';
+import { IAccountsFilter } from './Accounts.types';
+import { DynamicListService } from '../DynamicListing/DynamicList.service';
+import { AccountTransformer } from './Account.transformer';
+import { TransformerInjectable } from '../Transformer/TransformerInjectable.service';
+import { Account } from './models/Account.model';
+import { AccountRepository } from './repositories/Account.repository';
+import { IFilterMeta } from '@/interfaces/Model';
+
+@Injectable()
+export class GetAccountsService {
+  constructor(
+    private readonly dynamicListService: DynamicListService,
+    private readonly transformerService: TransformerInjectable,
+
+    @Inject(Account.name)
+    private readonly accountModel: typeof Account,
+    private readonly accountRepository: AccountRepository,
+  ) {}
+
+  /**
+   * Retrieve accounts datatable list.
+   * @param {IAccountsFilter} accountsFilter
+   * @returns {Promise<{ accounts: IAccountResponse[]; filterMeta: IFilterMeta }>}
+   */
+  public async getAccountsList(
+    filterDTO: IAccountsFilter,
+  ): Promise<{ accounts: Account[]; filterMeta: IFilterMeta }> {
+    // Parses the stringified filter roles.
+    const filter = this.parseListFilterDTO(filterDTO);
+
+    // Dynamic list service.
+    const dynamicList = await this.dynamicListService.dynamicList(
+      this.accountModel,
+      filter,
+    );
+    // Retrieve accounts model based on the given query.
+    const accounts = await this.accountModel.query().onBuild((builder) => {
+      dynamicList.buildQuery()(builder);
+      builder.modify('inactiveMode', filter.inactiveMode);
+    });
+    const accountsGraph = await this.accountRepository.getDependencyGraph();
+
+    // Retrieves the transformed accounts collection.
+    const transformedAccounts = await this.transformerService.transform(
+      accounts,
+      new AccountTransformer(),
+      { accountsGraph, structure: filterDTO.structure },
+    );
+
+    return {
+      accounts: transformedAccounts,
+      filterMeta: dynamicList.getResponseMeta(),
+    };
+  }
+
+  /**
+   * Parsees accounts list filter DTO.
+   * @param filterDTO
+   * @returns
+   */
+  private parseListFilterDTO(filterDTO) {
+    return R.compose(this.dynamicListService.parseStringifiedFilter)(filterDTO);
+  }
+}

packages/server-nest/src/modules/Accounts/MutateBaseCurrencyAccounts.ts

@@ -0,0 +1,22 @@
+// import { Inject, Service } from 'typedi';
+// import HasTenancyService from '@/services/Tenancy/TenancyService';
+
+// @Service()
+// export class MutateBaseCurrencyAccounts {
+//   @Inject()
+//   tenancy: HasTenancyService;
+
+//   /**
+//    * Mutates the all accounts or the organziation.
+//    * @param {number} tenantId
+//    * @param {string} currencyCode
+//    */
+//   public mutateAllAccountsCurrency = async (
+//     tenantId: number,
+//     currencyCode: string
+//   ) => {
+//     const { Account } = this.tenancy.models(tenantId);
+
+//     await Account.query().update({ currencyCode });
+//   };
+// }

packages/server-nest/src/modules/Accounts/constants.ts

@@ -0,0 +1,103 @@
+export const ERRORS = {
+  ACCOUNT_NOT_FOUND: 'account_not_found',
+  ACCOUNT_TYPE_NOT_FOUND: 'account_type_not_found',
+  PARENT_ACCOUNT_NOT_FOUND: 'parent_account_not_found',
+  ACCOUNT_CODE_NOT_UNIQUE: 'account_code_not_unique',
+  ACCOUNT_NAME_NOT_UNIQUE: 'account_name_not_unqiue',
+  PARENT_ACCOUNT_HAS_DIFFERENT_TYPE: 'parent_has_different_type',
+  ACCOUNT_TYPE_NOT_ALLOWED_TO_CHANGE: 'account_type_not_allowed_to_changed',
+  ACCOUNT_PREDEFINED: 'account_predefined',
+  ACCOUNT_HAS_ASSOCIATED_TRANSACTIONS: 'account_has_associated_transactions',
+  PREDEFINED_ACCOUNTS: 'predefined_accounts',
+  ACCOUNTS_HAVE_TRANSACTIONS: 'accounts_have_transactions',
+  CLOSE_ACCOUNT_AND_TO_ACCOUNT_NOT_SAME_TYPE:
+    'close_account_and_to_account_not_same_type',
+  ACCOUNTS_NOT_FOUND: 'accounts_not_found',
+  ACCOUNT_TYPE_NOT_SUPPORTS_MULTI_CURRENCY:
+    'ACCOUNT_TYPE_NOT_SUPPORTS_MULTI_CURRENCY',
+  ACCOUNT_CURRENCY_NOT_SAME_PARENT_ACCOUNT:
+    'ACCOUNT_CURRENCY_NOT_SAME_PARENT_ACCOUNT',
+  PARENT_ACCOUNT_EXCEEDED_THE_DEPTH_LEVEL:
+    'PARENT_ACCOUNT_EXCEEDED_THE_DEPTH_LEVEL',
+};
+
+// Default views columns.
+export const DEFAULT_VIEW_COLUMNS = [
+  { key: 'name', label: 'Account name' },
+  { key: 'code', label: 'Account code' },
+  { key: 'account_type_label', label: 'Account type' },
+  { key: 'account_normal', label: 'Account normal' },
+  { key: 'amount', label: 'Balance' },
+  { key: 'currencyCode', label: 'Currency' },
+];
+
+export const MAX_ACCOUNTS_CHART_DEPTH = 5;
+
+// Accounts default views.
+export const DEFAULT_VIEWS = [
+  {
+    name: 'Assets',
+    slug: 'assets',
+    rolesLogicExpression: '1',
+    roles: [
+      { index: 1, fieldKey: 'root_type', comparator: 'equals', value: 'asset' },
+    ],
+    columns: DEFAULT_VIEW_COLUMNS,
+  },
+  {
+    name: 'Liabilities',
+    slug: 'liabilities',
+    rolesLogicExpression: '1',
+    roles: [
+      {
+        fieldKey: 'root_type',
+        index: 1,
+        comparator: 'equals',
+        value: 'liability',
+      },
+    ],
+    columns: DEFAULT_VIEW_COLUMNS,
+  },
+  {
+    name: 'Equity',
+    slug: 'equity',
+    rolesLogicExpression: '1',
+    roles: [
+      {
+        fieldKey: 'root_type',
+        index: 1,
+        comparator: 'equals',
+        value: 'equity',
+      },
+    ],
+    columns: DEFAULT_VIEW_COLUMNS,
+  },
+  {
+    name: 'Income',
+    slug: 'income',
+    rolesLogicExpression: '1',
+    roles: [
+      {
+        fieldKey: 'root_type',
+        index: 1,
+        comparator: 'equals',
+        value: 'income',
+      },
+    ],
+    columns: DEFAULT_VIEW_COLUMNS,
+  },
+  {
+    name: 'Expenses',
+    slug: 'expenses',
+    rolesLogicExpression: '1',
+    roles: [
+      {
+        fieldKey: 'root_type',
+        index: 1,
+        comparator: 'equals',
+        value: 'expense',
+      },
+    ],
+    columns: DEFAULT_VIEW_COLUMNS,
+  },
+];

packages/server-nest/src/modules/Accounts/models/Account.model.ts

@@ -0,0 +1,458 @@
+/* eslint-disable global-require */
+// import { mixin, Model } from 'objection';
+import { castArray } from 'lodash';
+import DependencyGraph from '@/libs/dependency-graph';
+import {
+  ACCOUNT_TYPES,
+  getAccountsSupportsMultiCurrency,
+} from '@/constants/accounts';
+import { TenantModel } from '@/modules/System/models/TenantModel';
+// import { SearchableModel } from '@/modules/Search/SearchableMdel';
+// import { CustomViewBaseModel } from '@/modules/CustomViews/CustomViewBaseModel';
+// import { ModelSettings } from '@/modules/Settings/ModelSettings';
+import { AccountTypesUtils } from '@/libs/accounts-utils/AccountTypesUtils';
+import { Model } from 'objection';
+import { PlaidItem } from '@/modules/BankingPlaid/models/PlaidItem';
+// import AccountSettings from './Account.Settings';
+// import { DEFAULT_VIEWS } from '@/modules/Accounts/constants';
+// import { buildFilterQuery, buildSortColumnQuery } from '@/lib/ViewRolesBuilder';
+// import { flatToNestedArray } from 'utils';
+
+// @ts-expect-error
+// export class Account extends mixin(TenantModel, [
+//   ModelSettings,
+//   CustomViewBaseModel,
+//   SearchableModel,
+// ]) {
+
+export class Account extends TenantModel {
+  public name!: string;
+  public slug!: string;
+  public code!: string;
+  public index!: number;
+  public accountType!: string;
+  public predefined!: boolean;
+  public currencyCode!: string;
+  public active!: boolean;
+  public bankBalance!: number;
+  public lastFeedsUpdatedAt!: string | null;
+  public amount!: number;
+  public plaidItemId!: number;
+
+  public plaidItem!: PlaidItem;
+
+  /**
+   * Table name.
+   */
+  static get tableName() {
+    return 'accounts';
+  }
+
+  /**
+   * Timestamps columns.
+   */
+  static get timestamps() {
+    return ['createdAt', 'updatedAt'];
+  }
+
+  /**
+   * Virtual attributes.
+   */
+  static get virtualAttributes() {
+    return [
+      'accountTypeLabel',
+      'accountParentType',
+      'accountRootType',
+      'accountNormal',
+      'accountNormalFormatted',
+      'isBalanceSheetAccount',
+      'isPLSheet',
+    ];
+  }
+
+  /**
+   * Account normal.
+   */
+  get accountNormal() {
+    return AccountTypesUtils.getType(this.accountType, 'normal');
+  }
+
+  get accountNormalFormatted() {
+    const paris = {
+      credit: 'Credit',
+      debit: 'Debit',
+    };
+    return paris[this.accountNormal] || '';
+  }
+
+  /**
+   * Retrieve account type label.
+   */
+  get accountTypeLabel() {
+    return AccountTypesUtils.getType(this.accountType, 'label');
+  }
+
+  /**
+   * Retrieve account parent type.
+   */
+  get accountParentType() {
+    return AccountTypesUtils.getType(this.accountType, 'parentType');
+  }
+
+  /**
+   * Retrieve account root type.
+   */
+  get accountRootType() {
+    return AccountTypesUtils.getType(this.accountType, 'rootType');
+  }
+
+  /**
+   * Retrieve whether the account is balance sheet account.
+   */
+  get isBalanceSheetAccount() {
+    return this.isBalanceSheet();
+  }
+
+  /**
+   * Retrieve whether the account is profit/loss sheet account.
+   */
+  get isPLSheet() {
+    return this.isProfitLossSheet();
+  }
+  /**
+   * Allows to mark model as resourceable to viewable and filterable.
+   */
+  static get resourceable() {
+    return true;
+  }
+
+  /**
+   * Model modifiers.
+   */
+  static get modifiers() {
+    const TABLE_NAME = Account.tableName;
+
+    return {
+      /**
+       * Inactive/Active mode.
+       */
+      inactiveMode(query, active = false) {
+        query.where('accounts.active', !active);
+      },
+
+      filterAccounts(query, accountIds) {
+        if (accountIds.length > 0) {
+          query.whereIn(`${TABLE_NAME}.id`, accountIds);
+        }
+      },
+      filterAccountTypes(query, typesIds) {
+        if (typesIds.length > 0) {
+          query.whereIn('account_types.account_type_id', typesIds);
+        }
+      },
+      viewRolesBuilder(query, conditionals, expression) {
+        // buildFilterQuery(Account.tableName, conditionals, expression)(query);
+      },
+      sortColumnBuilder(query, columnKey, direction) {
+        // buildSortColumnQuery(Account.tableName, columnKey, direction)(query);
+      },
+
+      /**
+       * Filter by root type.
+       */
+      filterByRootType(query, rootType) {
+        const filterTypes = ACCOUNT_TYPES.filter(
+          (accountType) => accountType.rootType === rootType,
+        ).map((accountType) => accountType.key);
+
+        query.whereIn('account_type', filterTypes);
+      },
+
+      /**
+       * Filter by account normal
+       */
+      filterByAccountNormal(query, accountNormal) {
+        const filterTypes = ACCOUNT_TYPES.filter(
+          (accountType) => accountType.normal === accountNormal,
+        ).map((accountType) => accountType.key);
+
+        query.whereIn('account_type', filterTypes);
+      },
+
+      /**
+       * Finds account by the given slug.
+       * @param {*} query
+       * @param {*} slug
+       */
+      findBySlug(query, slug) {
+        query.where('slug', slug).first();
+      },
+
+      /**
+       *
+       * @param {*} query
+       * @param {*} baseCyrrency
+       */
+      preventMutateBaseCurrency(query) {
+        const accountsTypes = getAccountsSupportsMultiCurrency();
+        const accountsTypesKeys = accountsTypes.map((type) => type.key);
+
+        query
+          .whereIn('accountType', accountsTypesKeys)
+          .where('seededAt', null)
+          .first();
+      },
+    };
+  }
+
+  /**
+   * Relationship mapping.
+   */
+  static get relationMappings() {
+    const { AccountTransaction } = require('./AccountTransaction.model');
+    const { Item } = require('../../Items/models/Item');
+    // const InventoryAdjustment = require('models/InventoryAdjustment');
+    // const ManualJournalEntry = require('models/ManualJournalEntry');
+    // const Expense = require('models/Expense');
+    // const ExpenseEntry = require('models/ExpenseCategory');
+    // const ItemEntry = require('models/ItemEntry');
+    // const UncategorizedTransaction = require('models/UncategorizedCashflowTransaction');
+    const { PlaidItem } = require('../../BankingPlaid/models/PlaidItem');
+
+    return {
+      /**
+       * Account model may has many transactions.
+       */
+      transactions: {
+        relation: Model.HasManyRelation,
+        modelClass: AccountTransaction,
+        join: {
+          from: 'accounts.id',
+          to: 'accounts_transactions.accountId',
+        },
+      },
+      /**
+       * Account may has many items as cost account.
+       */
+      itemsCostAccount: {
+        relation: Model.HasManyRelation,
+        modelClass: Item,
+        join: {
+          from: 'accounts.id',
+          to: 'items.costAccountId',
+        },
+      },
+      /**
+       * Account may has many items as sell account.
+       */
+      itemsSellAccount: {
+        relation: Model.HasManyRelation,
+        modelClass: Item,
+        join: {
+          from: 'accounts.id',
+          to: 'items.sellAccountId',
+        },
+      },
+      //   /**
+      //    *
+      //    */
+      //   inventoryAdjustments: {
+      //     relation: Model.HasManyRelation,
+      //     modelClass: InventoryAdjustment.default,
+      //     join: {
+      //       from: 'accounts.id',
+      //       to: 'inventory_adjustments.adjustmentAccountId',
+      //     },
+      //   },
+      //   /**
+      //    *
+      //    */
+      //   manualJournalEntries: {
+      //     relation: Model.HasManyRelation,
+      //     modelClass: ManualJournalEntry.default,
+      //     join: {
+      //       from: 'accounts.id',
+      //       to: 'manual_journals_entries.accountId',
+      //     },
+      //   },
+      //   /**
+      //    *
+      //    */
+      //   expensePayments: {
+      //     relation: Model.HasManyRelation,
+      //     modelClass: Expense.default,
+      //     join: {
+      //       from: 'accounts.id',
+      //       to: 'expenses_transactions.paymentAccountId',
+      //     },
+      //   },
+      //   /**
+      //    *
+      //    */
+      //   expenseEntries: {
+      //     relation: Model.HasManyRelation,
+      //     modelClass: ExpenseEntry.default,
+      //     join: {
+      //       from: 'accounts.id',
+      //       to: 'expense_transaction_categories.expenseAccountId',
+      //     },
+      //   },
+      //   /**
+      //    *
+      //    */
+      //   entriesCostAccount: {
+      //     relation: Model.HasManyRelation,
+      //     modelClass: ItemEntry.default,
+      //     join: {
+      //       from: 'accounts.id',
+      //       to: 'items_entries.costAccountId',
+      //     },
+      //   },
+      //   /**
+      //    *
+      //    */
+      //   entriesSellAccount: {
+      //     relation: Model.HasManyRelation,
+      //     modelClass: ItemEntry.default,
+      //     join: {
+      //       from: 'accounts.id',
+      //       to: 'items_entries.sellAccountId',
+      //     },
+      //   },
+      //   /**
+      //    * Associated uncategorized transactions.
+      //    */
+      //   uncategorizedTransactions: {
+      //     relation: Model.HasManyRelation,
+      //     modelClass: UncategorizedTransaction.default,
+      //     join: {
+      //       from: 'accounts.id',
+      //       to: 'uncategorized_cashflow_transactions.accountId',
+      //     },
+      //     filter: (query) => {
+      //       query.where('categorized', false);
+      //     },
+      //   },
+      /**
+       * Account model may belongs to a Plaid item.
+       */
+      plaidItem: {
+        relation: Model.BelongsToOneRelation,
+        modelClass: PlaidItem,
+        join: {
+          from: 'accounts.plaidItemId',
+          to: 'plaid_items.plaidItemId',
+        },
+      },
+    };
+  }
+
+  /**
+   * Detarmines whether the given type equals the account type.
+   * @param {string} accountType
+   * @return {boolean}
+   */
+  isAccountType(accountType) {
+    const types = castArray(accountType);
+    return types.indexOf(this.accountType) !== -1;
+  }
+
+  /**
+   * Detarmines whether the given root type equals the account type.
+   * @param {string} rootType
+   * @return {boolean}
+   */
+  isRootType(rootType) {
+    return AccountTypesUtils.isRootTypeEqualsKey(this.accountType, rootType);
+  }
+
+  /**
+   * Detarmine whether the given parent type equals the account type.
+   * @param {string} parentType
+   * @return {boolean}
+   */
+  isParentType(parentType) {
+    return AccountTypesUtils.isParentTypeEqualsKey(
+      this.accountType,
+      parentType,
+    );
+  }
+
+  /**
+   * Detarmines whether the account is balance sheet account.
+   * @return {boolean}
+   */
+  isBalanceSheet() {
+    return AccountTypesUtils.isTypeBalanceSheet(this.accountType);
+  }
+
+  /**
+   * Detarmines whether the account is profit/loss account.
+   * @return {boolean}
+   */
+  isProfitLossSheet() {
+    return AccountTypesUtils.isTypePLSheet(this.accountType);
+  }
+
+  /**
+   * Detarmines whether the account is income statement account
+   * @return {boolean}
+   */
+  isIncomeSheet() {
+    return this.isProfitLossSheet();
+  }
+
+  /**
+   * Converts flatten accounts list to nested array.
+   * @param {Array} accounts
+   * @param {Object} options
+   */
+  static toNestedArray(accounts, options = { children: 'children' }) {
+    // return flatToNestedArray(accounts, {
+    //   id: 'id',
+    //   parentId: 'parentAccountId',
+    // });
+  }
+
+  /**
+   * Transformes the accounts list to depenedency graph structure.
+   * @param {IAccount[]} accounts
+   */
+  static toDependencyGraph(accounts) {
+    return DependencyGraph.fromArray(accounts, {
+      itemId: 'id',
+      parentItemId: 'parentAccountId',
+    });
+  }
+
+  /**
+   * Model settings.
+   */
+  // static get meta() {
+  // return AccountSettings;
+  // }
+
+  /**
+   * Retrieve the default custom views, roles and columns.
+   */
+  // static get defaultViews() {
+  //   return DEFAULT_VIEWS;
+  // }
+
+  /**
+   * Model search roles.
+   */
+  static get searchRoles() {
+    return [
+      { condition: 'or', fieldKey: 'name', comparator: 'contains' },
+      { condition: 'or', fieldKey: 'code', comparator: 'like' },
+    ];
+  }
+
+  /**
+   * Prevents mutate base currency since the model is not empty.
+   */
+  static get preventMutateBaseCurrency() {
+    return true;
+  }
+}

packages/server-nest/src/modules/Accounts/models/AccountTransaction.model.ts

@@ -0,0 +1,266 @@
+import { Model, raw } from 'objection';
+import moment, { unitOfTime } from 'moment';
+import { isEmpty, castArray } from 'lodash';
+import { BaseModel } from '@/models/Model';
+import { Account } from './Account.model';
+// import { getTransactionTypeLabel } from '@/utils/transactions-types';
+
+export class AccountTransaction extends BaseModel {
+  referenceType: string;
+  referenceId: number;
+  accountId: number;
+  contactId: number;
+  credit: number;
+  debit: number;
+  exchangeRate: number;
+  taxRate: number;
+  date: Date | string;
+  transactionType: string;
+  currencyCode: string;
+  referenceTypeFormatted: string;
+  transactionNumber!: string;
+  referenceNumber!: string;
+  note!: string;
+
+  index!: number;
+  indexGroup!: number;
+
+  taxRateId!: number;
+
+  branchId!: number;
+  userId!: number;
+  itemId!: number;
+  projectId!: number;
+  account: Account;
+
+  /**
+   * Table name
+   */
+  static get tableName() {
+    return 'accounts_transactions';
+  }
+
+  /**
+   * Timestamps columns.
+   */
+  get timestamps() {
+    return ['createdAt'];
+  }
+
+  /**
+   * Virtual attributes.
+   */
+  static get virtualAttributes() {
+    return ['referenceTypeFormatted', 'creditLocal', 'debitLocal'];
+  }
+
+  /**
+   * Retrieves the credit amount in base currency.
+   * @return {number}
+   */
+  get creditLocal() {
+    return this.credit * this.exchangeRate;
+  }
+
+  /**
+   * Retrieves the debit amount in base currency.
+   * @return {number}
+   */
+  get debitLocal() {
+    return this.debit * this.exchangeRate;
+  }
+
+  // /**
+  //  * Retrieve formatted reference type.
+  //  * @return {string}
+  //  */
+  // get referenceTypeFormatted() {
+  //   return getTransactionTypeLabel(this.referenceType, this.transactionType);
+  // }
+
+  /**
+   * Model modifiers.
+   */
+  static get modifiers() {
+    return {
+      /**
+       * Filters accounts by the given ids.
+       * @param {Query} query
+       * @param {number[]} accountsIds
+       */
+      filterAccounts(query, accountsIds) {
+        if (Array.isArray(accountsIds) && accountsIds.length > 0) {
+          query.whereIn('account_id', accountsIds);
+        }
+      },
+
+      /**
+       * Filters the transaction types.
+       * @param {Query} query
+       * @param {string[]} types
+       */
+      filterTransactionTypes(query, types) {
+        if (Array.isArray(types) && types.length > 0) {
+          query.whereIn('reference_type', types);
+        } else if (typeof types === 'string') {
+          query.where('reference_type', types);
+        }
+      },
+
+      /**
+       * Filters the date range.
+       * @param {Query} query
+       * @param {moment.MomentInput} startDate
+       * @param {moment.MomentInput} endDate
+       * @param {unitOfTime.StartOf} type
+       */
+      filterDateRange(
+        query,
+        startDate: moment.MomentInput,
+        endDate: moment.MomentInput,
+        type: unitOfTime.StartOf = 'day',
+      ) {
+        const dateFormat = 'YYYY-MM-DD';
+        const fromDate = moment(startDate).startOf(type).format(dateFormat);
+        const toDate = moment(endDate).endOf(type).format(dateFormat);
+
+        if (startDate) {
+          query.where('date', '>=', fromDate);
+        }
+        if (endDate) {
+          query.where('date', '<=', toDate);
+        }
+      },
+
+      /**
+       * Filters the amount range.
+       * @param {Query} query
+       * @param {number} fromAmount
+       * @param {number} toAmount
+       */
+      filterAmountRange(query, fromAmount, toAmount) {
+        if (fromAmount) {
+          query.andWhere((q) => {
+            q.where('credit', '>=', fromAmount);
+            q.orWhere('debit', '>=', fromAmount);
+          });
+        }
+        if (toAmount) {
+          query.andWhere((q) => {
+            q.where('credit', '<=', toAmount);
+            q.orWhere('debit', '<=', toAmount);
+          });
+        }
+      },
+      sumationCreditDebit(query) {
+        query.select(['accountId']);
+
+        query.sum('credit as credit');
+        query.sum('debit as debit');
+        query.groupBy('account_id');
+      },
+      filterContactType(query, contactType) {
+        query.where('contact_type', contactType);
+      },
+      filterContactIds(query, contactIds) {
+        query.whereIn('contact_id', contactIds);
+      },
+      openingBalance(query, fromDate) {
+        query.modify('filterDateRange', null, fromDate);
+        query.modify('sumationCreditDebit');
+      },
+      closingBalance(query, toDate) {
+        query.modify('filterDateRange', null, toDate);
+        query.modify('sumationCreditDebit');
+      },
+      contactsOpeningBalance(
+        query,
+        openingDate,
+        receivableAccounts,
+        customersIds,
+      ) {
+        // Filter by date.
+        query.modify('filterDateRange', null, openingDate);
+
+        // Filter by customers.
+        query.whereNot('contactId', null);
+        query.whereIn('accountId', castArray(receivableAccounts));
+
+        if (!isEmpty(customersIds)) {
+          query.whereIn('contactId', castArray(customersIds));
+        }
+        // Group by the contact transactions.
+        query.groupBy('contactId');
+        query.sum('credit as credit');
+        query.sum('debit as debit');
+        query.select('contactId');
+      },
+      creditDebitSummation(query) {
+        query.sum('credit as credit');
+        query.sum('debit as debit');
+      },
+      groupByDateFormat(query, groupType = 'month') {
+        const groupBy = {
+          day: '%Y-%m-%d',
+          month: '%Y-%m',
+          year: '%Y',
+        };
+        const dateFormat = groupBy[groupType];
+
+        query.select(raw(`DATE_FORMAT(DATE, '${dateFormat}')`).as('date'));
+        query.groupByRaw(`DATE_FORMAT(DATE, '${dateFormat}')`);
+      },
+
+      filterByBranches(query, branchesIds) {
+        const formattedBranchesIds = castArray(branchesIds);
+
+        query.whereIn('branchId', formattedBranchesIds);
+      },
+
+      filterByProjects(query, projectsIds) {
+        const formattedProjectsIds = castArray(projectsIds);
+
+        query.whereIn('projectId', formattedProjectsIds);
+      },
+
+      filterByReference(query, referenceId: number, referenceType: string) {
+        query.where('reference_id', referenceId);
+        query.where('reference_type', referenceType);
+      },
+    };
+  }
+
+  /**
+   * Relationship mapping.
+   */
+  static get relationMappings() {
+    const { Account } = require('./Account.model');
+    const { Contact } = require('../../Contacts/models/Contact');
+
+    return {
+      account: {
+        relation: Model.BelongsToOneRelation,
+        modelClass: Account,
+        join: {
+          from: 'accounts_transactions.accountId',
+          to: 'accounts.id',
+        },
+      },
+      contact: {
+        relation: Model.BelongsToOneRelation,
+        modelClass: Contact,
+        join: {
+          from: 'accounts_transactions.contactId',
+          to: 'contacts.id',
+        },
+      },
+    };
+  }
+
+  /**
+   * Prevents mutate base currency since the model is not empty.
+   */
+  static get preventMutateBaseCurrency() {
+    return true;
+  }
+}

packages/server-nest/src/modules/Accounts/repositories/Account.repository.ts

@@ -0,0 +1,390 @@
+import { Knex } from 'knex';
+import { Inject, Injectable, Scope } from '@nestjs/common';
+import { TenantRepository } from '@/common/repository/TenantRepository';
+import { TENANCY_DB_CONNECTION } from '@/modules/Tenancy/TenancyDB/TenancyDB.constants';
+import { Account } from '../models/Account.model';
+import { I18nService } from 'nestjs-i18n';
+import { TenancyContext } from '@/modules/Tenancy/TenancyContext.service';
+import {
+  DiscountExpenseAccount,
+  OtherChargesAccount,
+  OtherExpensesAccount,
+  PrepardExpenses,
+  PurchaseDiscountAccount,
+  StripeClearingAccount,
+  TaxPayableAccount,
+  UnearnedRevenueAccount,
+} from '../Accounts.constants';
+
+@Injectable({ scope: Scope.REQUEST })
+export class AccountRepository extends TenantRepository {
+  constructor(
+    private readonly i18n: I18nService,
+    private readonly tenancyContext: TenancyContext,
+
+    @Inject(TENANCY_DB_CONNECTION)
+    private readonly tenantDBKnex: Knex,
+  ) {
+    super();
+  }
+
+  /**
+   * Gets the repository's model.
+   */
+  get model(): typeof Account {
+    return Account.bindKnex(this.tenantDBKnex);
+  }
+
+  /**
+   * Retrieve accounts dependency graph.
+   * @param {string} withRelation
+   * @param {Knex.Transaction} trx
+   * @returns {}
+   */
+  public async getDependencyGraph(
+    withRelation?: string,
+    trx?: Knex.Transaction,
+  ) {
+    const accounts = await this.all(withRelation, trx);
+
+    return this.model.toDependencyGraph(accounts);
+  }
+
+  /**
+   * Retrieve account by slug.
+   * @param {string} slug
+   * @return {Promise<IAccount>}
+   */
+  public findBySlug(slug: string) {
+    return this.findOne({ slug });
+  }
+
+  // /**
+  //  * Changes account balance.
+  //  * @param {number} accountId
+  //  * @param {number} amount
+  //  * @return {Promise<void>}
+  //  */
+  // async balanceChange(accountId: number, amount: number): Promise<void> {
+  //   const method: string = amount < 0 ? 'decrement' : 'increment';
+
+  //   await this.model.query().where('id', accountId)[method]('amount', amount);
+  //   this.flushCache();
+  // }
+
+  /**
+   * Activate user by the given id.
+   * @param  {number} userId - User id.
+   * @return {Promise<void>}
+   */
+  activateById(userId: number): Promise<number> {
+    return super.update({ active: 1 }, { id: userId });
+  }
+
+  /**
+   * Inactivate user by the given id.
+   * @param  {number} userId - User id.
+   * @return {Promise<void>}
+   */
+  inactivateById(userId: number): Promise<number> {
+    return super.update({ active: 0 }, { id: userId });
+  }
+
+  /**
+   * Activate user by the given id.
+   * @param  {number} userId - User id.
+   * @return {Promise<void>}
+   */
+  async activateByIds(userIds: number[], trx): Promise<number> {
+    const results = await this.model
+      .query(trx)
+      .whereIn('id', userIds)
+      .patch({ active: true });
+
+    return results;
+  }
+
+  /**
+   * Inactivate user by the given id.
+   * @param  {number} userId - User id.
+   * @return {Promise<void>}
+   */
+  async inactivateByIds(userIds: number[], trx): Promise<number> {
+    const results = await this.model
+      .query(trx)
+      .whereIn('id', userIds)
+      .patch({ active: false });
+
+    return results;
+  }
+
+  /**
+   *
+   * @param {string} currencyCode
+   * @param extraAttrs
+   * @param trx
+   * @returns
+   */
+  findOrCreateAccountReceivable = async (
+    currencyCode: string = '',
+    extraAttrs = {},
+    trx?: Knex.Transaction,
+  ) => {
+    let result = await this.model
+      .query(trx)
+      .onBuild((query) => {
+        if (currencyCode) {
+          query.where('currencyCode', currencyCode);
+        }
+        query.where('accountType', 'accounts-receivable');
+      })
+      .first();
+
+    if (!result) {
+      result = await this.model.query(trx).insertAndFetch({
+        name: this.i18n.t('account.accounts_receivable.currency', {
+          args: { currency: currencyCode },
+        }),
+        accountType: 'accounts-receivable',
+        currencyCode,
+        active: 1,
+        ...extraAttrs,
+      });
+    }
+    return result;
+  };
+
+  /**
+   * Find or create tax payable account.
+   * @param {Record<string, string>}extraAttrs
+   * @param {Knex.Transaction} trx
+   * @returns
+   */
+  async findOrCreateTaxPayable(
+    extraAttrs: Record<string, string> = {},
+    trx?: Knex.Transaction,
+  ) {
+    let result = await this.model
+      .query(trx)
+      .findOne({ slug: TaxPayableAccount.slug, ...extraAttrs });
+
+    if (!result) {
+      result = await this.model.query(trx).insertAndFetch({
+        ...TaxPayableAccount,
+        ...extraAttrs,
+      });
+    }
+    return result;
+  }
+
+  findOrCreateAccountsPayable = async (
+    currencyCode: string = '',
+    extraAttrs = {},
+    trx?: Knex.Transaction,
+  ) => {
+    let result = await this.model
+      .query(trx)
+      .onBuild((query) => {
+        if (currencyCode) {
+          query.where('currencyCode', currencyCode);
+        }
+        query.where('accountType', 'accounts-payable');
+      })
+      .first();
+
+    if (!result) {
+      result = await this.model.query(trx).insertAndFetch({
+        name: this.i18n.t('account.accounts_payable.currency', {
+          args: { currency: currencyCode },
+        }),
+        accountType: 'accounts-payable',
+        currencyCode,
+        active: 1,
+        ...extraAttrs,
+      });
+    }
+    return result;
+  };
+
+  /**
+   * Finds or creates the unearned revenue.
+   * @param {Record<string, string>} extraAttrs
+   * @param {Knex.Transaction} trx
+   * @returns
+   */
+  public async findOrCreateUnearnedRevenue(
+    extraAttrs: Record<string, string> = {},
+    trx?: Knex.Transaction,
+  ) {
+    const tenantMeta = await this.tenancyContext.getTenantMetadata();
+    const _extraAttrs = {
+      currencyCode: tenantMeta.baseCurrency,
+      ...extraAttrs,
+    };
+    let result = await this.model
+      .query(trx)
+      .findOne({ slug: UnearnedRevenueAccount.slug, ..._extraAttrs });
+
+    if (!result) {
+      result = await this.model.query(trx).insertAndFetch({
+        ...UnearnedRevenueAccount,
+        ..._extraAttrs,
+      });
+    }
+    return result;
+  }
+
+  /**
+   * Finds or creates the prepard expenses account.
+   * @param {Record<string, string>} extraAttrs
+   * @param {Knex.Transaction} trx
+   * @returns
+   */
+  public async findOrCreatePrepardExpenses(
+    extraAttrs: Record<string, string> = {},
+    trx?: Knex.Transaction,
+  ) {
+    const tenantMeta = await this.tenancyContext.getTenantMetadata();
+    const _extraAttrs = {
+      currencyCode: tenantMeta.baseCurrency,
+      ...extraAttrs,
+    };
+
+    let result = await this.model
+      .query(trx)
+      .findOne({ slug: PrepardExpenses.slug, ..._extraAttrs });
+
+    if (!result) {
+      result = await this.model.query(trx).insertAndFetch({
+        ...PrepardExpenses,
+        ..._extraAttrs,
+      });
+    }
+    return result;
+  }
+
+  /**
+   * Finds or creates the stripe clearing account.
+   * @param {Record<string, string>} extraAttrs
+   * @param {Knex.Transaction} trx
+   * @returns
+   */
+  public async findOrCreateStripeClearing(
+    extraAttrs: Record<string, string> = {},
+    trx?: Knex.Transaction,
+  ) {
+    const tenantMeta = await this.tenancyContext.getTenantMetadata();
+    const _extraAttrs = {
+      currencyCode: tenantMeta.baseCurrency,
+      ...extraAttrs,
+    };
+    let result = await this.model
+      .query(trx)
+      .findOne({ slug: StripeClearingAccount.slug, ..._extraAttrs });
+
+    if (!result) {
+      result = await this.model.query(trx).insertAndFetch({
+        ...StripeClearingAccount,
+        ..._extraAttrs,
+      });
+    }
+    return result;
+  }
+
+  /**
+   * Finds or creates the discount expense account.
+   * @param {Record<string, string>} extraAttrs
+   * @param {Knex.Transaction} trx
+   * @returns
+   */
+  public async findOrCreateDiscountAccount(
+    extraAttrs: Record<string, string> = {},
+    trx?: Knex.Transaction,
+  ) {
+    const tenantMeta = await this.tenancyContext.getTenantMetadata();
+    const _extraAttrs = {
+      currencyCode: tenantMeta.baseCurrency,
+      ...extraAttrs,
+    };
+
+    let result = await this.model
+      .query(trx)
+      .findOne({ slug: DiscountExpenseAccount.slug, ..._extraAttrs });
+
+    if (!result) {
+      result = await this.model.query(trx).insertAndFetch({
+        ...DiscountExpenseAccount,
+        ..._extraAttrs,
+      });
+    }
+    return result;
+  }
+
+  public async findOrCreatePurchaseDiscountAccount(
+    extraAttrs: Record<string, string> = {},
+    trx?: Knex.Transaction,
+  ) {
+    const tenantMeta = await this.tenancyContext.getTenantMetadata();
+    const _extraAttrs = {
+      currencyCode: tenantMeta.baseCurrency,
+      ...extraAttrs,
+    };
+
+    let result = await this.model
+      .query(trx)
+      .findOne({ slug: PurchaseDiscountAccount.slug, ..._extraAttrs });
+
+    if (!result) {
+      result = await this.model.query(trx).insertAndFetch({
+        ...PurchaseDiscountAccount,
+        ..._extraAttrs,
+      });
+    }
+    return result;
+  }
+
+  public async findOrCreateOtherChargesAccount(
+    extraAttrs: Record<string, string> = {},
+    trx?: Knex.Transaction,
+  ) {
+    const tenantMeta = await this.tenancyContext.getTenantMetadata();
+    const _extraAttrs = {
+      currencyCode: tenantMeta.baseCurrency,
+      ...extraAttrs,
+    };
+
+    let result = await this.model
+      .query(trx)
+      .findOne({ slug: OtherChargesAccount.slug, ..._extraAttrs });
+
+    if (!result) {
+      result = await this.model.query(trx).insertAndFetch({
+        ...OtherChargesAccount,
+        ..._extraAttrs,
+      });
+    }
+    return result;
+  }
+
+  public async findOrCreateOtherExpensesAccount(
+    extraAttrs: Record<string, string> = {},
+    trx?: Knex.Transaction,
+  ) {
+    const tenantMeta = await this.tenancyContext.getTenantMetadata();
+    const _extraAttrs = {
+      currencyCode: tenantMeta.baseCurrency,
+      ...extraAttrs,
+    };
+    let result = await this.model
+      .query(trx)
+      .findOne({ slug: OtherExpensesAccount.slug, ..._extraAttrs });
+
+    if (!result) {
+      result = await this.model.query(trx).insertAndFetch({
+        ...OtherExpensesAccount,
+        ..._extraAttrs,
+      });
+    }
+    return result;
+  }
+}

packages/server-nest/src/modules/Accounts/susbcribers/MutateBaseCurrencyAccounts.ts

@@ -0,0 +1,34 @@
+// import { Service, Inject } from 'typedi';
+// import events from '@/subscribers/events';
+// import { MutateBaseCurrencyAccounts } from '../MutateBaseCurrencyAccounts';
+
+// @Service()
+// export class MutateBaseCurrencyAccountsSubscriber {
+//   @Inject()
+//   public mutateBaseCurrencyAccounts: MutateBaseCurrencyAccounts;
+
+//   /**
+//    * Attaches the events with handles.
+//    * @param bus
+//    */
+//   attach(bus) {
+//     bus.subscribe(
+//       events.organization.baseCurrencyUpdated,
+//       this.updateAccountsCurrencyOnBaseCurrencyMutated
+//     );
+//   }
+
+//   /**
+//    * Updates the all accounts currency once the base currency
+//    * of the organization is mutated.
+//    */
+//   private updateAccountsCurrencyOnBaseCurrencyMutated = async ({
+//     tenantId,
+//     organizationDTO,
+//   }) => {
+//     await this.mutateBaseCurrencyAccounts.mutateAllAccountsCurrency(
+//       tenantId,
+//       organizationDTO.baseCurrency
+//     );
+//   };
+// }

packages/server-nest/src/modules/Accounts/utils/AccountType.utils.ts

@@ -0,0 +1,101 @@
+import { get } from 'lodash';
+import { ACCOUNT_TYPES } from '../Accounts.constants';
+
+export class AccountTypesUtils {
+  /**
+   * Retrieve account types list.
+   */
+  static getList() {
+    return ACCOUNT_TYPES;
+  }
+
+  /**
+   * Retrieve accounts types by the given root type.
+   * @param {string} rootType -
+   * @return {string}
+   */
+  static getTypesByRootType(rootType: string) {
+    return ACCOUNT_TYPES.filter((type) => type.rootType === rootType);
+  }
+
+  /**
+   * Retrieve account type by the given account type key.
+   * @param {string} key
+   * @param {string} accessor
+   */
+  static getType(key: string, accessor?: string) {
+    const type = ACCOUNT_TYPES.find((type) => type.key === key);
+
+    if (accessor) {
+      return get(type, accessor);
+    }
+    return type;
+  }
+
+  /**
+   * Retrieve accounts types by the parent account type.
+   * @param {string} parentType
+   */
+  static getTypesByParentType(parentType: string) {
+    return ACCOUNT_TYPES.filter((type) => type.parentType === parentType);
+  }
+
+  /**
+   * Retrieve accounts types by the given account normal.
+   * @param {string} normal
+   */
+  static getTypesByNormal(normal: string) {
+    return ACCOUNT_TYPES.filter((type) => type.normal === normal);
+  }
+
+  /**
+   * Detarmines whether the root type equals the account type.
+   * @param {string} key
+   * @param {string} rootType
+   */
+  static isRootTypeEqualsKey(key: string, rootType: string): boolean {
+    return ACCOUNT_TYPES.some((type) => {
+      const isType = type.key === key;
+      const isRootType = type.rootType === rootType;
+
+      return isType && isRootType;
+    });
+  }
+
+  /**
+   * Detarmines whether the parent account type equals the account type key.
+   * @param {string} key - Account type key.
+   * @param {string} parentType - Account parent type.
+   */
+  static isParentTypeEqualsKey(key: string, parentType: string): boolean {
+    return ACCOUNT_TYPES.some((type) => {
+      const isType = type.key === key;
+      const isParentType = type.parentType === parentType;
+
+      return isType && isParentType;
+    });
+  }
+
+  /**
+   * Detarmines whether account type has balance sheet.
+   * @param {string} key - Account type key.
+   *
+   */
+  static isTypeBalanceSheet(key: string): boolean {
+    return ACCOUNT_TYPES.some((type) => {
+      const isType = type.key === key;
+      return isType && type.balanceSheet;
+    });
+  }
+
+  /**
+   * Detarmines whether account type has profit/loss sheet.
+   * @param {string} key - Account type key.
+   */
+  static isTypePLSheet(key: string): boolean {
+    return ACCOUNT_TYPES.some((type) => {
+      const isType = type.key === key;
+      return isType && type.incomeSheet;
+    });
+  }
+}

packages/server-nest/src/modules/App/App.controller.spec.ts

@@ -0,0 +1,22 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { AppController } from './App.controller';
+import { AppService } from './App.service';
+
+describe('AppController', () => {
+  let appController: AppController;
+
+  beforeEach(async () => {
+    const app: TestingModule = await Test.createTestingModule({
+      controllers: [AppController],
+      providers: [AppService],
+    }).compile();
+
+    appController = app.get<AppController>(AppController);
+  });
+
+  describe('root', () => {
+    it('should return "Hello World!"', () => {
+      expect(appController.getHello()).toBe('Hello World!');
+    });
+  });
+});

packages/server-nest/src/modules/App/App.controller.ts

@@ -0,0 +1,12 @@
+import { Controller, Get } from '@nestjs/common';
+import { AppService } from './App.service';
+
+@Controller()
+export class AppController {
+  constructor(private readonly appService: AppService) {}
+
+  @Get()
+  getHello(): string {
+    return this.appService.getHello();
+  }
+}

packages/server-nest/src/modules/App/App.module.ts

@@ -0,0 +1,192 @@
+import { MiddlewareConsumer, Module, RequestMethod } from '@nestjs/common';
+import { ConfigModule, ConfigService } from '@nestjs/config';
+import { EventEmitterModule } from '@nestjs/event-emitter';
+import { join } from 'path';
+import {
+  AcceptLanguageResolver,
+  CookieResolver,
+  HeaderResolver,
+  I18nModule,
+  QueryResolver,
+} from 'nestjs-i18n';
+import { BullModule } from '@nestjs/bullmq';
+import { JwtModule } from '@nestjs/jwt';
+import { PassportModule } from '@nestjs/passport';
+import { ClsModule } from 'nestjs-cls';
+import { AppController } from './App.controller';
+import { AppService } from './App.service';
+import { ItemsModule } from '../Items/items.module';
+import { config } from '../../common/config';
+import { SystemDatabaseModule } from '../System/SystemDB/SystemDB.module';
+import { SystemModelsModule } from '../System/SystemModels/SystemModels.module';
+import { JwtStrategy } from '../Auth/Jwt.strategy';
+import { jwtConstants } from '../Auth/Auth.constants';
+import { TenancyDatabaseModule } from '../Tenancy/TenancyDB/TenancyDB.module';
+import { TenancyModelsModule } from '../Tenancy/TenancyModels/Tenancy.module';
+import { LoggerMiddleware } from '@/middleware/logger.middleware';
+import { ExcludeNullInterceptor } from '@/interceptors/ExcludeNull.interceptor';
+import { APP_GUARD, APP_INTERCEPTOR } from '@nestjs/core';
+import { JwtAuthGuard } from '../Auth/Jwt.guard';
+import { UserIpInterceptor } from '@/interceptors/user-ip.interceptor';
+import { TenancyGlobalMiddleware } from '../Tenancy/TenancyGlobal.middleware';
+import { TransformerModule } from '../Transformer/Transformer.module';
+import { AccountsModule } from '../Accounts/Accounts.module';
+import { ExpensesModule } from '../Expenses/Expenses.module';
+import { ItemCategoryModule } from '../ItemCategories/ItemCategory.module';
+import { TaxRatesModule } from '../TaxRates/TaxRate.module';
+import { PdfTemplatesModule } from '../PdfTemplate/PdfTemplates.module';
+import { BranchesModule } from '../Branches/Branches.module';
+import { WarehousesModule } from '../Warehouses/Warehouses.module';
+import { SerializeInterceptor } from '@/common/interceptors/serialize.interceptor';
+import { ChromiumlyTenancyModule } from '../ChromiumlyTenancy/ChromiumlyTenancy.module';
+import { CustomersModule } from '../Customers/Customers.module';
+import { VendorsModule } from '../Vendors/Vendors.module';
+import { SaleEstimatesModule } from '../SaleEstimates/SaleEstimates.module';
+import { BillsModule } from '../Bills/Bills.module';
+import { SaleInvoicesModule } from '../SaleInvoices/SaleInvoices.module';
+import { SaleReceiptsModule } from '../SaleReceipts/SaleReceipts.module';
+import { ManualJournalsModule } from '../ManualJournals/ManualJournals.module';
+import { CreditNotesModule } from '../CreditNotes/CreditNotes.module';
+import { VendorCreditsModule } from '../VendorCredit/VendorCredits.module';
+import { VendorCreditApplyBillsModule } from '../VendorCreditsApplyBills/VendorCreditApplyBills.module';
+import { VendorCreditsRefundModule } from '../VendorCreditsRefund/VendorCreditsRefund.module';
+import { CreditNoteRefundsModule } from '../CreditNoteRefunds/CreditNoteRefunds.module';
+import { BillPaymentsModule } from '../BillPayments/BillPayments.module';
+import { PaymentsReceivedModule } from '../PaymentReceived/PaymentsReceived.module';
+import { LedgerModule } from '../Ledger/Ledger.module';
+import { BankRulesModule } from '../BankRules/BankRules.module';
+import { BankAccountsModule } from '../BankingAccounts/BankAccounts.module';
+import { BankingTransactionsExcludeModule } from '../BankingTransactionsExclude/BankingTransactionsExclude.module';
+import { BankingTransactionsRegonizeModule } from '../BankingTranasctionsRegonize/BankingTransactionsRegonize.module';
+import { BankingMatchingModule } from '../BankingMatching/BankingMatching.module';
+import { BankingTransactionsModule } from '../BankingTransactions/BankingTransactions.module';
+import { TransactionsLockingModule } from '../TransactionsLocking/TransactionsLocking.module';
+import { SettingsModule } from '../Settings/Settings.module';
+import { InventoryAdjustmentsModule } from '../InventoryAdjutments/InventoryAdjustments.module';
+import { PostHogModule } from '../EventsTracker/postHog.module';
+import { EventTrackerModule } from '../EventsTracker/EventTracker.module';
+import { MailModule } from '../Mail/Mail.module';
+
+@Module({
+  imports: [
+    ConfigModule.forRoot({
+      envFilePath: '.env',
+      load: config,
+      isGlobal: true,
+    }),
+    SystemDatabaseModule,
+    SystemModelsModule,
+    EventEmitterModule.forRoot(),
+    I18nModule.forRootAsync({
+      useFactory: () => ({
+        fallbackLanguage: 'en',
+        loaderOptions: {
+          path: join(__dirname, '/../../i18n/'),
+          watch: true,
+        },
+      }),
+      resolvers: [
+        new QueryResolver(),
+        new HeaderResolver(),
+        new CookieResolver(),
+        AcceptLanguageResolver,
+      ],
+    }),
+    PassportModule,
+    JwtModule.register({
+      secret: jwtConstants.secret,
+      signOptions: { expiresIn: '60s' },
+    }),
+    BullModule.forRootAsync({
+      imports: [ConfigModule],
+      useFactory: async (configService: ConfigService) => ({
+        connection: {
+          host: configService.get('QUEUE_HOST'),
+          port: configService.get('QUEUE_PORT'),
+        },
+      }),
+      inject: [ConfigService],
+    }),
+    ClsModule.forRoot({
+      global: true,
+      middleware: {
+        mount: true,
+        setup: (cls, req: Request, res: Response) => {
+          cls.set('organizationId', req.headers['organization-id']);
+          cls.set('userId', 1);
+        },
+      },
+    }),
+    TenancyDatabaseModule,
+    TenancyModelsModule,
+    ChromiumlyTenancyModule,
+    TransformerModule,
+    MailModule,
+    ItemsModule,
+    ItemCategoryModule,
+    AccountsModule,
+    ExpensesModule,
+    TaxRatesModule,
+    PdfTemplatesModule,
+    BranchesModule,
+    WarehousesModule,
+    CustomersModule,
+    VendorsModule,
+    SaleInvoicesModule,
+    SaleEstimatesModule,
+    SaleReceiptsModule,
+    BillsModule,
+    ManualJournalsModule,
+    CreditNotesModule,
+    VendorCreditsModule,
+    VendorCreditApplyBillsModule,
+    VendorCreditsRefundModule,
+    CreditNoteRefundsModule,
+    BillPaymentsModule,
+    PaymentsReceivedModule,
+    LedgerModule,
+    BankAccountsModule,
+    BankRulesModule,
+    BankingTransactionsModule,
+    BankingTransactionsExcludeModule,
+    BankingTransactionsRegonizeModule,
+    BankingMatchingModule,
+    TransactionsLockingModule,
+    SettingsModule,
+    InventoryAdjustmentsModule,
+    PostHogModule,
+    EventTrackerModule,
+  ],
+  controllers: [AppController],
+  providers: [
+    {
+      provide: APP_INTERCEPTOR,
+      useClass: SerializeInterceptor,
+    },
+    {
+      provide: APP_GUARD,
+      useClass: JwtAuthGuard,
+    },
+    {
+      provide: APP_INTERCEPTOR,
+      useClass: UserIpInterceptor,
+    },
+    {
+      provide: APP_INTERCEPTOR,
+      useClass: ExcludeNullInterceptor,
+    },
+    AppService,
+    JwtStrategy,
+  ],
+})
+export class AppModule {
+  configure(consumer: MiddlewareConsumer) {
+    consumer
+      .apply(LoggerMiddleware)
+      .forRoutes({ path: '*', method: RequestMethod.ALL });
+
+    consumer
+      .apply(TenancyGlobalMiddleware)
+      .forRoutes({ path: '*', method: RequestMethod.ALL });
+  }
+}

packages/server-nest/src/modules/App/App.service.ts

@@ -0,0 +1,24 @@
+import { Injectable } from '@nestjs/common';
+import { ConfigService } from '@nestjs/config';
+import { JwtService } from '@nestjs/jwt';
+
+@Injectable()
+export class AppService {
+  // configService: ConfigService;
+
+  constructor(
+    private configService: ConfigService,
+    private jwtService: JwtService,
+  ) {}
+
+  getHello(): string {
+    console.log(this.configService.get('DATABASE_PORT'));
+    const payload = {};
+
+    const accessToken = this.jwtService.sign(payload);
+
+    console.log(accessToken);
+
+    return accessToken;
+  }
+}

packages/server-nest/src/modules/Attachments/Attachment.transformer.ts

@@ -0,0 +1,19 @@
+import { Transformer } from "../Transformer/Transformer";
+
+export class AttachmentTransformer extends Transformer {
+  /**
+   * Exclude attributes.
+   * @returns {string[]}
+   */
+  public excludeAttributes = (): string[] => {
+    return ['id', 'createdAt'];
+  };
+
+  /**
+   * Includeded attributes.
+   * @returns {string[]}
+   */
+  public includeAttributes = (): string[] => {
+    return [];
+  };
+}

packages/server-nest/src/modules/Attachments/Attachments.types.ts

@@ -0,0 +1,3 @@
+export interface AttachmentLinkDTO {
+  key: string;
+}

packages/server-nest/src/modules/Auth/Auth.constants.ts

@@ -0,0 +1,4 @@
+export const jwtConstants = {
+  secret:
+    'DO NOT USE THIS VALUE. INSTEAD, CREATE A COMPLEX SECRET AND KEEP IT SAFE OUTSIDE OF THE SOURCE CODE.',
+};

packages/server-nest/src/modules/Auth/Auth.interfaces.ts

@@ -0,0 +1,5 @@
+export interface IAuthSignedInEventPayload {}
+
+export interface IAuthSigningInEventPayload {}
+
+export interface IAuthSignInPOJO {}

packages/server-nest/src/modules/Auth/AuthApplication.sevice.ts

@@ -0,0 +1,4 @@
+
+export class AuthApplication {
+ 
+}

packages/server-nest/src/modules/Auth/Jwt.guard.ts

@@ -0,0 +1,32 @@
+import {
+  ExecutionContext,
+  Injectable,
+  Scope,
+  SetMetadata,
+} from '@nestjs/common';
+import { Reflector } from '@nestjs/core';
+import { AuthGuard } from '@nestjs/passport';
+import { ClsService } from 'nestjs-cls';
+
+export const IS_PUBLIC_KEY = 'isPublic';
+export const PublicRoute = () => SetMetadata(IS_PUBLIC_KEY, true);
+
+@Injectable()
+export class JwtAuthGuard extends AuthGuard('jwt') {
+  constructor(
+    private reflector: Reflector,
+    private readonly cls: ClsService,
+  ) {
+    super();
+  }
+  canActivate(context: ExecutionContext) {
+    const isPublic = this.reflector.getAllAndOverride<boolean>(IS_PUBLIC_KEY, [
+      context.getHandler(),
+      context.getClass(),
+    ]);
+    if (isPublic) {
+      return true;
+    }
+    return super.canActivate(context);
+  }
+}

packages/server-nest/src/modules/Auth/Jwt.strategy.ts

@@ -0,0 +1,19 @@
+import { ExtractJwt, Strategy } from 'passport-jwt';
+import { PassportStrategy } from '@nestjs/passport';
+import { Injectable } from '@nestjs/common';
+import { jwtConstants } from './Auth.constants';
+
+@Injectable()
+export class JwtStrategy extends PassportStrategy(Strategy) {
+  constructor() {
+    super({
+      jwtFromRequest: ExtractJwt.fromAuthHeaderAsBearerToken(),
+      ignoreExpiration: false,
+      secretOrKey: jwtConstants.secret,
+    });
+  }
+
+  async validate(payload: any) {
+    return { userId: payload.sub, username: payload.username };
+  }
+}