feat(nestjs): migrate to NestJS

packages/server/src/modules/SaleEstimates/commands/ConvetSaleEstimate.service.ts

@@ -0,0 +1,46 @@
+import * as moment from 'moment';
+import { Inject, Injectable } from '@nestjs/common';
+import { EventEmitter2 } from '@nestjs/event-emitter';
+import { Knex } from 'knex';
+import { SaleEstimate } from '../models/SaleEstimate';
+import { events } from '@/common/events/events';
+import { TenantModelProxy } from '@/modules/System/models/TenantBaseModel';
+
+@Injectable()
+export class ConvertSaleEstimate {
+  constructor(
+    private readonly eventPublisher: EventEmitter2,
+
+    @Inject(SaleEstimate.name)
+    private readonly saleEstimateModel: TenantModelProxy<typeof SaleEstimate>,
+  ) {}
+
+  /**
+   * Converts estimate to invoice.
+   * @param {number} estimateId -
+   * @return {Promise<void>}
+   */
+  public async convertEstimateToInvoice(
+    estimateId: number,
+    invoiceId: number,
+    trx?: Knex.Transaction,
+  ): Promise<void> {
+    // Retrieve details of the given sale estimate.
+    const saleEstimate = await this.saleEstimateModel()
+      .query()
+      .findById(estimateId)
+      .throwIfNotFound();
+
+    // Marks the estimate as converted from the givne invoice.
+    await this.saleEstimateModel().query(trx).where('id', estimateId).patch({
+      convertedToInvoiceId: invoiceId,
+      convertedToInvoiceAt: moment().toMySqlDateTime(),
+    });
+
+    // Triggers `onSaleEstimateConvertedToInvoice` event.
+    await this.eventPublisher.emitAsync(
+      events.saleEstimate.onConvertedToInvoice,
+      {},
+    );
+  }
+}