feat(nestjs): migrate to NestJS

packages/server/src/modules/Branches/commands/EditBranch.service.ts

@@ -0,0 +1,60 @@
+import { Inject, Injectable } from '@nestjs/common';
+import { Knex } from 'knex';
+import { IBranchEditedPayload, IBranchEditPayload } from '../Branches.types';
+import { Branch } from '../models/Branch.model';
+import { UnitOfWork } from '../../Tenancy/TenancyDB/UnitOfWork.service';
+import { EventEmitter2 } from '@nestjs/event-emitter';
+import { events } from '@/common/events/events';
+import { TenantModelProxy } from '@/modules/System/models/TenantBaseModel';
+import { EditBranchDto } from '../dtos/Branch.dto';
+
+@Injectable()
+export class EditBranchService {
+  constructor(
+    @Inject(Branch.name)
+    private readonly branchModel: TenantModelProxy<typeof Branch>,
+    private readonly uow: UnitOfWork,
+    private readonly eventPublisher: EventEmitter2,
+  ) {}
+
+  /**
+   * Edits branch.
+   * @param {number} branchId - Branch id.
+   * @param {IEditBranchDTO} editBranchDTO - Edit branch data.
+   */
+  public editBranch = async (
+    branchId: number,
+    editBranchDTO: EditBranchDto,
+  ) => {
+    // Retrieves the old branch or throw not found service error.
+    const oldBranch = await this.branchModel()
+      .query()
+      .findById(branchId)
+      .throwIfNotFound();
+
+    // Deletes branch under unit-of-work.
+    return this.uow.withTransaction(async (trx: Knex.Transaction) => {
+      // Triggers `onBranchEdit` event.
+      await this.eventPublisher.emitAsync(events.warehouse.onEdit, {
+        oldBranch,
+        trx,
+      } as IBranchEditPayload);
+
+      // Edits the branch on the storage.
+      const branch = await this.branchModel()
+        .query()
+        .patchAndFetchById(branchId, {
+          ...editBranchDTO,
+        });
+
+      // Triggers `onBranchEdited` event.
+      await this.eventPublisher.emitAsync(events.warehouse.onEdited, {
+        oldBranch,
+        branch,
+        trx,
+      } as IBranchEditedPayload);
+
+      return branch;
+    });
+  };
+}