add server to monorepo.

packages/server/src/services/Contacts/Customers/CRUD/CreateCustomer.ts

@@ -0,0 +1,73 @@
+import { Service, Inject } from 'typedi';
+import { Knex } from 'knex';
+import {
+  ICustomer,
+  ICustomerEventCreatedPayload,
+  ICustomerEventCreatingPayload,
+  ICustomerNewDTO,
+  ISystemUser,
+} from '@/interfaces';
+import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
+import UnitOfWork from '@/services/UnitOfWork';
+import events from '@/subscribers/events';
+import { CreateEditCustomerDTO } from './CreateEditCustomerDTO';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+
+@Service()
+export class CreateCustomer {
+  @Inject()
+  private uow: UnitOfWork;
+
+  @Inject()
+  private eventPublisher: EventPublisher;
+
+  @Inject()
+  private customerDTO: CreateEditCustomerDTO;
+
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  /**
+   * Creates a new customer.
+   * @param  {number} tenantId
+   * @param  {ICustomerNewDTO} customerDTO
+   * @return {Promise<ICustomer>}
+   */
+  public async createCustomer(
+    tenantId: number,
+    customerDTO: ICustomerNewDTO,
+    authorizedUser: ISystemUser
+  ): Promise<ICustomer> {
+    const { Contact } = this.tenancy.models(tenantId);
+
+    // Transformes the customer DTO to customer object.
+    const customerObj = await this.customerDTO.transformCreateDTO(
+      tenantId,
+      customerDTO
+    );
+    // Creates a new customer under unit-of-work envirement.
+    return this.uow.withTransaction(tenantId, async (trx: Knex.Transaction) => {
+      // Triggers `onCustomerCreating` event.
+      await this.eventPublisher.emitAsync(events.customers.onCreating, {
+        tenantId,
+        customerDTO,
+        trx,
+      } as ICustomerEventCreatingPayload);
+
+      // Creates a new contact as customer.
+      const customer = await Contact.query().insertAndFetch({
+        ...customerObj,
+      });
+      // Triggers `onCustomerCreated` event.
+      await this.eventPublisher.emitAsync(events.customers.onCreated, {
+        customer,
+        tenantId,
+        customerId: customer.id,
+        authorizedUser,
+        trx,
+      } as ICustomerEventCreatedPayload);
+
+      return customer;
+    });
+  }
+}