refactor: split the services to multiple service classes (#202)

packages/server/src/services/Sales/Receipts/SaleReceiptDTOTransformer.ts

@@ -0,0 +1,89 @@
+import { Inject, Service } from 'typedi';
+import * as R from 'ramda';
+import { sumBy, omit } from 'lodash';
+import composeAsync from 'async/compose';
+import moment from 'moment';
+import { BranchTransactionDTOTransform } from '@/services/Branches/Integrations/BranchTransactionDTOTransform';
+import ItemsEntriesService from '@/services/Items/ItemsEntriesService';
+import { WarehouseTransactionDTOTransform } from '@/services/Warehouses/Integrations/WarehouseTransactionDTOTransform';
+import { SaleReceiptValidators } from './SaleReceiptValidators';
+import { ICustomer, ISaleReceipt, ISaleReceiptDTO } from '@/interfaces';
+import { formatDateFields } from '@/utils';
+import { SaleReceiptIncrement } from './SaleReceiptIncrement';
+import { ItemEntry } from '@/models';
+
+@Service()
+export class SaleReceiptDTOTransformer {
+  @Inject()
+  private itemsEntriesService: ItemsEntriesService;
+
+  @Inject()
+  private branchDTOTransform: BranchTransactionDTOTransform;
+
+  @Inject()
+  private warehouseDTOTransform: WarehouseTransactionDTOTransform;
+
+  @Inject()
+  private validators: SaleReceiptValidators;
+
+  @Inject()
+  private receiptIncrement: SaleReceiptIncrement;
+
+  /**
+   * Transform create DTO object to model object.
+   * @param {ISaleReceiptDTO} saleReceiptDTO -
+   * @param {ISaleReceipt} oldSaleReceipt -
+   * @returns {ISaleReceipt}
+   */
+  async transformDTOToModel(
+    tenantId: number,
+    saleReceiptDTO: ISaleReceiptDTO,
+    paymentCustomer: ICustomer,
+    oldSaleReceipt?: ISaleReceipt
+  ): Promise<ISaleReceipt> {
+    const amount = sumBy(saleReceiptDTO.entries, (e) =>
+      ItemEntry.calcAmount(e)
+    );
+    // Retreive the next invoice number.
+    const autoNextNumber = this.receiptIncrement.getNextReceiptNumber(tenantId);
+
+    // Retreive the receipt number.
+    const receiptNumber =
+      saleReceiptDTO.receiptNumber ||
+      oldSaleReceipt?.receiptNumber ||
+      autoNextNumber;
+
+    // Validate receipt number require.
+    this.validators.validateReceiptNoRequire(receiptNumber);
+
+    const initialEntries = saleReceiptDTO.entries.map((entry) => ({
+      reference_type: 'SaleReceipt',
+      ...entry,
+    }));
+
+    const entries = await composeAsync(
+      // Sets default cost and sell account to receipt items entries.
+      this.itemsEntriesService.setItemsEntriesDefaultAccounts(tenantId)
+    )(initialEntries);
+
+    const initialDTO = {
+      amount,
+      ...formatDateFields(omit(saleReceiptDTO, ['closed', 'entries']), [
+        'receiptDate',
+      ]),
+      currencyCode: paymentCustomer.currencyCode,
+      exchangeRate: saleReceiptDTO.exchangeRate || 1,
+      receiptNumber,
+      // Avoid rewrite the deliver date in edit mode when already published.
+      ...(saleReceiptDTO.closed &&
+        !oldSaleReceipt?.closedAt && {
+          closedAt: moment().toMySqlDateTime(),
+        }),
+      entries,
+    };
+    return R.compose(
+      this.branchDTOTransform.transformDTO<ISaleReceipt>(tenantId),
+      this.warehouseDTOTransform.transformDTO<ISaleReceipt>(tenantId)
+    )(initialDTO);
+  }
+}