feat(nestjs): migrate to NestJS

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

@@ -0,0 +1,53 @@
+import { Inject, Injectable } from '@nestjs/common';
+import { ERRORS } from '../constants';
+import { Branch } from '../models/Branch.model';
+
+import { ServiceError } from '../../Items/ServiceError';
+import { TenantModelProxy } from '@/modules/System/models/TenantBaseModel';
+@Injectable()
+export class BranchCommandValidator {
+  constructor(
+    @Inject(Branch.name)
+    private readonly branchModel: TenantModelProxy<typeof Branch>,
+  ) {}
+
+  /**
+   * Validates the given branch whether is not only warehouse.
+   * @param {number} branchId
+   */
+  public validateBranchNotOnlyWarehouse = async (branchId: number) => {
+    const warehouses = await this.branchModel()
+      .query()
+      .whereNot('id', branchId);
+
+    if (warehouses.length === 0) {
+      throw new ServiceError(ERRORS.COULD_NOT_DELETE_ONLY_BRANCH);
+    }
+  };
+
+  /**
+   * Validates the given branch whether is unique.
+   * @param {string} code - Branch code.
+   * @param {number} exceptBranchId - Branch id to except.
+   */
+  public validateBranchCodeUnique = async (
+    code: string,
+    exceptBranchId?: number,
+  ): Promise<void> => {
+    const branch = await this.branchModel()
+      .query()
+      .onBuild((query) => {
+        query.select(['id']);
+        query.where('code', code);
+
+        if (exceptBranchId) {
+          query.whereNot('id', exceptBranchId);
+        }
+      })
+      .first();
+
+    if (branch) {
+      throw new ServiceError(ERRORS.BRANCH_CODE_NOT_UNIQUE);
+    }
+  };
+}