add server to monorepo.

packages/server/src/subscribers/Bills/WriteInventoryTransactions.ts

@@ -0,0 +1,79 @@
+import { Service, Inject } from 'typedi';
+import events from '@/subscribers/events';
+import TenancyService from '@/services/Tenancy/TenancyService';
+import BillsService from '@/services/Purchases/Bills';
+import {
+  IBillCreatedPayload,
+  IBillEditedPayload,
+  IBIllEventDeletedPayload,
+} from '@/interfaces';
+
+@Service()
+export default class BillWriteInventoryTransactionsSubscriber {
+  @Inject()
+  tenancy: TenancyService;
+
+  @Inject()
+  billsService: BillsService;
+
+  /**
+   * Attaches events with handles.
+   */
+  public attach(bus) {
+    bus.subscribe(
+      events.bill.onCreated,
+      this.handleWritingInventoryTransactions
+    );
+    bus.subscribe(
+      events.bill.onEdited,
+      this.handleOverwritingInventoryTransactions
+    );
+    bus.subscribe(
+      events.bill.onDeleted,
+      this.handleRevertInventoryTransactions
+    );
+  }
+
+  /**
+   * Handles writing the inventory transactions once bill created.
+   */
+  private handleWritingInventoryTransactions = async ({
+    tenantId,
+    billId,
+    trx,
+  }: IBillCreatedPayload) => {
+    await this.billsService.recordInventoryTransactions(
+      tenantId,
+      billId,
+      false,
+      trx
+    );
+  };
+
+  /**
+   * Handles the overwriting the inventory transactions once bill edited.
+   */
+  private handleOverwritingInventoryTransactions = async ({
+    tenantId,
+    billId,
+    trx,
+  }: IBillEditedPayload) => {
+    await this.billsService.recordInventoryTransactions(
+      tenantId,
+      billId,
+      true,
+      trx
+    );
+  };
+
+  /**
+   * Handles the reverting the inventory transactions once the bill deleted.
+   */
+  private handleRevertInventoryTransactions = async ({
+    tenantId,
+    billId,
+    trx,
+  }: IBIllEventDeletedPayload) => {
+    await this.billsService.revertInventoryTransactions(tenantId, billId, trx);
+  };
+}