fix: refactoring invoice calc cost service.

server/src/subscribers/SaleInvoices/WriteInventoryTransactions.ts

@@ -0,0 +1,72 @@
+import { Container } from 'typedi';
+import { On, EventSubscriber } from 'event-dispatch';
+import events from 'subscribers/events';
+import TenancyService from 'services/Tenancy/TenancyService';
+import SaleInvoicesService from 'services/Sales/SalesInvoices';
+
+@EventSubscriber()
+export default class WriteInventoryTransactions {
+  logger: any;
+  tenancy: TenancyService;
+  saleInvoicesService: SaleInvoicesService;
+
+  /**
+   * Constructor method.
+   */
+  constructor() {
+    this.logger = Container.get('logger');
+    this.tenancy = Container.get(TenancyService);
+    this.saleInvoicesService = Container.get(SaleInvoicesService);
+  }
+
+  /**
+   * Handles the writing inventory transactions once the invoice created.
+   */
+  @On(events.saleInvoice.onCreated)
+  public async handleWritingInventoryTransactions({ tenantId, saleInvoice }) {
+    this.logger.info('[sale_invoice] trying to write inventory transactions.', {
+      tenantId,
+    });
+    await this.saleInvoicesService.recordInventoryTranscactions(
+      tenantId,
+      saleInvoice
+    );
+  }
+
+  /**
+   * Rewriting the inventory transactions once the sale invoice be edited.
+   */
+  @On(events.saleInvoice.onEdited)
+  public async handleRewritingInventoryTransactions({ tenantId, saleInvoice }) {
+    this.logger.info('[sale_invoice] trying to write inventory transactions.', {
+      tenantId,
+    });
+    await this.saleInvoicesService.recordInventoryTranscactions(
+      tenantId,
+      saleInvoice,
+      true
+    );
+  }
+
+  /**
+   * Handles deleting the inventory transactions once the invoice deleted.
+   */
+  @On(events.saleInvoice.onDeleted)
+  public async handleDeletingInventoryTransactions({
+    tenantId,
+    saleInvoiceId,
+    oldSaleInvoice,
+  }) {
+    this.logger.info(
+      '[sale_invoice] trying to revert inventory transactions.',
+      {
+        tenantId,
+        saleInvoiceId,
+      }
+    );
+    await this.saleInvoicesService.revertInventoryTransactions(
+      tenantId,
+      saleInvoiceId
+    );
+  }
+}