refactor: wip to nestjs

packages/server-nest/src/modules/Customers/commands/CreateEditCustomerDTO.service.ts

@@ -0,0 +1,73 @@
+import moment from 'moment';
+import { defaultTo, omit, isEmpty } from 'lodash';
+import { Injectable } from '@nestjs/common';
+import { Customer } from '../models/Customer';
+import { TenancyContext } from '@/modules/Tenancy/TenancyContext.service';
+import { ICustomerEditDTO, ICustomerNewDTO } from '../types/Customers.types';
+import { ContactService } from '@/modules/Contacts/types/Contacts.types';
+
+@Injectable()
+export class CreateEditCustomerDTO {
+  /**
+   * @param {TenancyContext} tenancyContext - Tenancy context service.
+   */
+  constructor(private readonly tenancyContext: TenancyContext) {}
+
+  /**
+   * Transformes the create/edit DTO.
+   * @param   {ICustomerNewDTO | ICustomerEditDTO} customerDTO
+   * @returns
+   */
+  private transformCommonDTO = (
+    customerDTO: ICustomerNewDTO | ICustomerEditDTO,
+  ): Partial<Customer> => {
+    return {
+      ...omit(customerDTO, ['customerType']),
+      contactType: customerDTO.customerType,
+    };
+  };
+
+  /**
+   * Transformes the create DTO.
+   * @param {ICustomerNewDTO} customerDTO
+   * @returns {Promise<Partial<Customer>>}
+   */
+  public transformCreateDTO = async (customerDTO: ICustomerNewDTO) => {
+    const commonDTO = this.transformCommonDTO(customerDTO);
+
+    // Retrieves the tenant metadata.
+    const tenantMeta = await this.tenancyContext.getTenant(true);
+
+    return {
+      ...commonDTO,
+      currencyCode:
+        commonDTO.currencyCode || tenantMeta?.metadata?.baseCurrency,
+      active: defaultTo(customerDTO.active, true),
+      contactService: ContactService.Customer,
+      ...(!isEmpty(customerDTO.openingBalanceAt)
+        ? {
+            openingBalanceAt: moment(
+              customerDTO?.openingBalanceAt,
+            ).toMySqlDateTime(),
+          }
+        : {}),
+      openingBalanceExchangeRate: defaultTo(
+        customerDTO.openingBalanceExchangeRate,
+        1,
+      ),
+    };
+  };
+
+  /**
+   * Transformes the edit DTO.
+   * @param   {ICustomerEditDTO} customerDTO
+   * @returns
+   */
+  public transformEditDTO = (customerDTO: ICustomerEditDTO) => {
+    const commonDTO = this.transformCommonDTO(customerDTO);
+
+    return {
+      ...commonDTO,
+    };
+  };
+}