add server to monorepo.

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

@@ -0,0 +1,64 @@
+import { Service, Inject } from 'typedi';
+import { Knex } from 'knex';
+import {
+  IBranch,
+  IBranchCreatedPayload,
+  IBranchCreatePayload,
+  ICreateBranchDTO,
+} from '@/interfaces';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
+import UnitOfWork from '@/services/UnitOfWork';
+import events from '@/subscribers/events';
+import { BranchValidator } from './BranchValidate';
+
+@Service()
+export class CreateBranch {
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  @Inject()
+  private uow: UnitOfWork;
+
+  @Inject()
+  private eventPublisher: EventPublisher;
+
+  @Inject()
+  private validator: BranchValidator;
+  
+  /**
+   * Creates a new branch.
+   * @param   {number} tenantId
+   * @param   {ICreateBranchDTO} createBranchDTO
+   * @returns {Promise<IBranch>}
+   */
+  public createBranch = (
+    tenantId: number,
+    createBranchDTO: ICreateBranchDTO
+  ): Promise<IBranch> => {
+    const { Branch } = this.tenancy.models(tenantId);
+
+    // Creates a new branch under unit-of-work.
+    return this.uow.withTransaction(tenantId, async (trx: Knex.Transaction) => {
+      // Triggers `onBranchCreate` event.
+      await this.eventPublisher.emitAsync(events.warehouse.onEdit, {
+        tenantId,
+        createBranchDTO,
+        trx,
+      } as IBranchCreatePayload);
+
+      const branch = await Branch.query().insertAndFetch({
+        ...createBranchDTO,
+      });
+      // Triggers `onBranchCreated` event.
+      await this.eventPublisher.emitAsync(events.warehouse.onEdited, {
+        tenantId,
+        createBranchDTO,
+        branch,
+        trx,
+      } as IBranchCreatedPayload);
+
+      return branch;
+    });
+  };
+}