add server to monorepo.

packages/server/src/services/Purchases/VendorCredits/CreateVendorCredit.ts

@@ -0,0 +1,85 @@
+import { Service, Inject } from 'typedi';
+import { Knex } from 'knex';
+import {
+  IVendorCreditCreatedPayload,
+  IVendorCreditCreateDTO,
+  IVendorCreditCreatingPayload,
+} from '@/interfaces';
+import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import ItemsEntriesService from '@/services/Items/ItemsEntriesService';
+import UnitOfWork from '@/services/UnitOfWork';
+import events from '@/subscribers/events';
+import BaseVendorCredit from './BaseVendorCredit';
+
+@Service()
+export default class CreateVendorCredit extends BaseVendorCredit {
+  @Inject()
+  private uow: UnitOfWork;
+
+  @Inject()
+  private itemsEntriesService: ItemsEntriesService;
+
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  @Inject()
+  private eventPublisher: EventPublisher;
+
+  /**
+   * Creates a new vendor credit.
+   * @param {number} tenantId -
+   * @param {IVendorCreditCreateDTO} vendorCreditCreateDTO -
+   */
+  public newVendorCredit = async (
+    tenantId: number,
+    vendorCreditCreateDTO: IVendorCreditCreateDTO
+  ) => {
+    const { VendorCredit, Vendor } = this.tenancy.models(tenantId);
+
+    // Triggers `onVendorCreditCreate` event.
+    await this.eventPublisher.emitAsync(events.vendorCredit.onCreate, {
+      tenantId,
+      vendorCreditCreateDTO,
+    });
+    // Retrieve the given vendor or throw not found service error.
+    const vendor = await Vendor.query()
+      .findById(vendorCreditCreateDTO.vendorId)
+      .throwIfNotFound();
+
+    // Validate items should be sellable items.
+    await this.itemsEntriesService.validateNonSellableEntriesItems(
+      tenantId,
+      vendorCreditCreateDTO.entries
+    );
+    // Transformes the credit DTO to storage layer.
+    const vendorCreditModel = this.transformCreateEditDTOToModel(
+      tenantId,
+      vendorCreditCreateDTO,
+      vendor.currencyCode
+    );
+    // Saves the vendor credit transactions under UOW envirement.
+    return this.uow.withTransaction(tenantId, async (trx: Knex.Transaction) => {
+      // Triggers `onVendorCreditCreating` event.
+      await this.eventPublisher.emitAsync(events.vendorCredit.onCreating, {
+        tenantId,
+        vendorCreditCreateDTO,
+        trx,
+      } as IVendorCreditCreatingPayload);
+
+      // Saves the vendor credit graph.
+      const vendorCredit = await VendorCredit.query(trx).upsertGraphAndFetch({
+        ...vendorCreditModel,
+      });
+      // Triggers `onVendorCreditCreated` event.
+      await this.eventPublisher.emitAsync(events.vendorCredit.onCreated, {
+        tenantId,
+        vendorCredit,
+        vendorCreditCreateDTO,
+        trx,
+      } as IVendorCreditCreatedPayload);
+
+      return vendorCredit;
+    });
+  };
+}