add server to monorepo.

packages/server/src/services/CreditNotes/CreateCreditNote.ts

@@ -0,0 +1,93 @@
+import { Knex } from 'knex';
+import { Service, Inject } from 'typedi';
+import {
+  ICreditNoteCreatedPayload,
+  ICreditNoteCreatingPayload,
+  ICreditNoteNewDTO,
+  ISystemUser,
+} from '@/interfaces';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import ItemsEntriesService from '@/services/Items/ItemsEntriesService';
+import UnitOfWork from '@/services/UnitOfWork';
+import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
+import events from '@/subscribers/events';
+import BaseCreditNotes from './CreditNotes';
+
+@Service()
+export default class CreateCreditNote extends BaseCreditNotes {
+  @Inject()
+  uow: UnitOfWork;
+
+  @Inject()
+  itemsEntriesService: ItemsEntriesService;
+
+  @Inject()
+  tenancy: HasTenancyService;
+
+  @Inject()
+  eventPublisher: EventPublisher;
+
+  /**
+   * Creates a new credit note.
+   * @param creditNoteDTO
+   */
+  public newCreditNote = async (
+    tenantId: number,
+    creditNoteDTO: ICreditNoteNewDTO,
+    authorizedUser: ISystemUser
+  ) => {
+    const { CreditNote, Contact } = this.tenancy.models(tenantId);
+
+    // Triggers `onCreditNoteCreate` event.
+    await this.eventPublisher.emitAsync(events.creditNote.onCreate, {
+      tenantId,
+      creditNoteDTO,
+    });
+    // Validate customer existance.
+    const customer = await Contact.query()
+      .modify('customer')
+      .findById(creditNoteDTO.customerId)
+      .throwIfNotFound();
+
+    // Validate items ids existance.
+    await this.itemsEntriesService.validateItemsIdsExistance(
+      tenantId,
+      creditNoteDTO.entries
+    );
+    // Validate items should be sellable items.
+    await this.itemsEntriesService.validateNonSellableEntriesItems(
+      tenantId,
+      creditNoteDTO.entries
+    );
+    // Transformes the given DTO to storage layer data.
+    const creditNoteModel = this.transformCreateEditDTOToModel(
+      tenantId,
+      creditNoteDTO,
+      customer.currencyCode
+    );
+    // Creates a new credit card transactions under unit-of-work envirement.
+    return this.uow.withTransaction(tenantId, async (trx: Knex.Transaction) => {
+      // Triggers `onCreditNoteCreating` event.
+      await this.eventPublisher.emitAsync(events.creditNote.onCreating, {
+        tenantId,
+        creditNoteDTO,
+        trx,
+      } as ICreditNoteCreatingPayload);
+
+      // Upsert the credit note graph.
+      const creditNote = await CreditNote.query(trx).upsertGraph({
+        ...creditNoteModel,
+      });
+      // Triggers `onCreditNoteCreated` event.
+      await this.eventPublisher.emitAsync(events.creditNote.onCreated, {
+        tenantId,
+        creditNoteDTO,
+        creditNote,
+        creditNoteId: creditNote.id,
+        trx,
+      } as ICreditNoteCreatedPayload);
+
+      return creditNote;
+    });
+  };
+}