add server to monorepo.

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

@@ -0,0 +1,76 @@
+import { Inject, Service } from 'typedi';
+import { Knex } from 'knex';
+
+import { ServiceError } from '@/exceptions';
+import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
+import UnitOfWork from '@/services/UnitOfWork';
+import { CreateInitialWarehouse } from './CreateInitialWarehouse';
+import { WarehousesSettings } from './WarehousesSettings';
+
+import events from '@/subscribers/events';
+import { ERRORS } from './contants';
+
+@Service()
+export class ActivateWarehouses {
+  @Inject()
+  uow: UnitOfWork;
+
+  @Inject()
+  eventPublisher: EventPublisher;
+
+  @Inject()
+  createInitialWarehouse: CreateInitialWarehouse;
+
+  @Inject()
+  settings: WarehousesSettings;
+
+  /**
+   * Throws error if the multi-warehouses is already activated.
+   * @param {boolean} isActivated
+   */
+  private throwIfWarehousesActivated = (isActivated: boolean) => {
+    if (isActivated) {
+      throw new ServiceError(ERRORS.MUTLI_WAREHOUSES_ALREADY_ACTIVATED);
+    }
+  };
+
+  /**
+   * Activates the multi-warehouses.
+   *
+   * - Creates a new warehouses and mark it as primary.
+   * - Seed warehouses items quantity.
+   * - Mutate inventory transactions with the primary warehouse.
+   * --------
+   * @param   {number} tenantId
+   * @returns {Promise<void>}
+   */
+  public activateWarehouses = (tenantId: number): Promise<void> => {
+    // Retrieve whether the multi-warehouses is active.
+    const isActivated = this.settings.isMultiWarehousesActive(tenantId);
+
+    // Throw error if the warehouses is already activated.
+    this.throwIfWarehousesActivated(isActivated);
+
+    // Activates multi-warehouses on unit-of-work envirement.
+    return this.uow.withTransaction(tenantId, async (trx: Knex.Transaction) => {
+      // Triggers `onWarehouseActivate` event.
+      await this.eventPublisher.emitAsync(events.warehouse.onActivate, {
+        tenantId,
+        trx,
+      });
+      // Creates a primary warehouse on the storage..
+      const primaryWarehouse =
+        await this.createInitialWarehouse.createInitialWarehouse(tenantId);
+
+      // Marks the multi-warehouses is activated.
+      this.settings.markMutliwarehoussAsActivated(tenantId);
+
+      // Triggers `onWarehouseActivated` event.
+      await this.eventPublisher.emitAsync(events.warehouse.onActivated, {
+        tenantId,
+        primaryWarehouse,
+        trx,
+      });
+    });
+  };
+}