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

packages/server/src/services/Sales/Estimates/UnlinkConvertedSaleEstimate.ts

@@ -0,0 +1,32 @@
+import { Knex } from 'knex';
+import { Inject, Service } from 'typedi';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+
+@Service()
+export class UnlinkConvertedSaleEstimate {
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  /**
+   * Unlink the converted sale estimates from the given sale invoice.
+   * @param {number} tenantId -
+   * @param {number} invoiceId -
+   * @return {Promise<void>}
+   */
+  public async unlinkConvertedEstimateFromInvoice(
+    tenantId: number,
+    invoiceId: number,
+    trx?: Knex.Transaction
+  ): Promise<void> {
+    const { SaleEstimate } = this.tenancy.models(tenantId);
+
+    await SaleEstimate.query(trx)
+      .where({
+        convertedToInvoiceId: invoiceId,
+      })
+      .patch({
+        convertedToInvoiceId: null,
+        convertedToInvoiceAt: null,
+      });
+  }
+}