add server to monorepo.

packages/server/src/services/Branches/ActivateBranches.ts

@@ -0,0 +1,90 @@
+import { Service, Inject } from 'typedi';
+import { ServiceError } from '@/exceptions';
+import { ERRORS } from './constants';
+import { Knex } from 'knex';
+import events from '@/subscribers/events';
+import {
+  IBranchesActivatedPayload,
+  IBranchesActivatePayload,
+} from '@/interfaces';
+import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
+import UnitOfWork from '@/services/UnitOfWork';
+import { CreateBranch } from './CreateBranch';
+import { BranchesSettings } from './BranchesSettings';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+
+@Service()
+export class ActivateBranches {
+  @Inject()
+  private uow: UnitOfWork;
+
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  @Inject()
+  private eventPublisher: EventPublisher;
+
+  @Inject()
+  private createBranch: CreateBranch;
+
+  @Inject()
+  private branchesSettings: BranchesSettings;
+
+  /**
+   * Throws service error if multi-branches feature is already activated.
+   * @param {boolean} isActivated
+   */
+  private throwIfMultiBranchesActivated = (isActivated: boolean) => {
+    if (isActivated) {
+      throw new ServiceError(ERRORS.MUTLI_BRANCHES_ALREADY_ACTIVATED);
+    }
+  };
+
+  /**
+   * Creates a new initial branch.
+   * @param {number} tenantId
+   */
+  private createInitialBranch = (tenantId: number) => {
+    const { __ } = this.tenancy.i18n(tenantId);
+
+    return this.createBranch.createBranch(tenantId, {
+      name: __('branches.head_branch'),
+      code: '10001',
+      primary: true,
+    });
+  };
+
+  /**
+   * Activate multi-branches feature.
+   * @param   {number} tenantId
+   * @returns {Promise<void>}
+   */
+  public activateBranches = (tenantId: number): Promise<void> => {
+    const isActivated = this.branchesSettings.isMultiBranchesActive(tenantId);
+
+    // Throw error if mutli-branches is already activated.
+    this.throwIfMultiBranchesActivated(isActivated);
+
+    // Activate multi-branches under unit-of-work envirement.
+    return this.uow.withTransaction(tenantId, async (trx: Knex.Transaction) => {
+      // Triggers `onBranchActivate` branch.
+      await this.eventPublisher.emitAsync(events.branch.onActivate, {
+        tenantId,
+        trx,
+      } as IBranchesActivatePayload);
+
+      // Create a new branch as primary branch.
+      const primaryBranch = await this.createInitialBranch(tenantId);
+
+      // Mark the mutli-branches is activated.
+      await this.branchesSettings.markMultiBranchesAsActivated(tenantId);
+
+      // Triggers `onBranchActivated` branch.
+      await this.eventPublisher.emitAsync(events.branch.onActivated, {
+        tenantId,
+        primaryBranch,
+        trx,
+      } as IBranchesActivatedPayload);
+    });
+  };
+}