add server to monorepo.

packages/server/src/services/Warehouses/WarehouseValidator.ts

@@ -0,0 +1,57 @@
+import { Inject, Service } from 'typedi';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import { ServiceError, ServiceErrors } from '@/exceptions';
+import { ERRORS } from './contants';
+
+@Service()
+export class WarehouseValidator {
+  @Inject()
+  tenancy: HasTenancyService;
+
+  /**
+   *
+   * @param {number} tenantId
+   * @param {number} warehouseId
+   */
+  public validateWarehouseNotOnlyWarehouse = async (
+    tenantId: number,
+    warehouseId: number
+  ) => {
+    const { Warehouse } = this.tenancy.models(tenantId);
+
+    const warehouses = await Warehouse.query().whereNot('id', warehouseId);
+
+    if (warehouses.length === 0) {
+      throw new ServiceError(ERRORS.COULD_NOT_DELETE_ONLY_WAERHOUSE);
+    }
+  };
+
+  /**
+   * 
+   * @param tenantId 
+   * @param code 
+   * @param exceptWarehouseId 
+   */
+  public validateWarehouseCodeUnique = async (
+    tenantId: number,
+    code: string,
+    exceptWarehouseId?: number
+  ) => {
+    const { Warehouse } = this.tenancy.models(tenantId);
+
+    const warehouse = await Warehouse.query()
+      .onBuild((query) => {
+        query.select(['id']);
+        query.where('code', code);
+
+        if (exceptWarehouseId) {
+          query.whereNot('id', exceptWarehouseId);
+        }
+      })
+      .first();
+
+    if (warehouse) {
+      throw new ServiceError(ERRORS.WAREHOUSE_CODE_NOT_UNIQUE);
+    }
+  };
+}