feat(nestjs): migrate to NestJS

packages/server/src/modules/BankRules/commands/DeleteBankRule.service.ts

@@ -0,0 +1,63 @@
+import { Knex } from 'knex';
+import { Inject, Injectable } from '@nestjs/common';
+import {
+  IBankRuleEventDeletedPayload,
+  IBankRuleEventDeletingPayload,
+} from '../types';
+import { BankRule } from '../models/BankRule';
+import { BankRuleCondition } from '../models/BankRuleCondition';
+import { UnitOfWork } from '@/modules/Tenancy/TenancyDB/UnitOfWork.service';
+import { EventEmitter2 } from '@nestjs/event-emitter';
+import { events } from '@/common/events/events';
+import { TenantModelProxy } from '@/modules/System/models/TenantBaseModel';
+
+@Injectable()
+export class DeleteBankRuleService {
+  constructor(
+    @Inject(BankRule.name)
+    private bankRuleModel: TenantModelProxy<typeof BankRule>,
+
+    @Inject(BankRuleCondition.name)
+    private bankRuleConditionModel: TenantModelProxy<typeof BankRuleCondition>,
+
+    private readonly uow: UnitOfWork,
+    private readonly eventPublisher: EventEmitter2,
+  ) {}
+
+  /**
+   * Deletes the given bank rule.
+   * @param {number} ruleId
+   * @returns {Promise<void>}
+   */
+  public async deleteBankRule(
+    ruleId: number,
+    trx?: Knex.Transaction,
+  ): Promise<void> {
+    const oldBankRule = await this.bankRuleModel()
+      .query()
+      .findById(ruleId)
+      .throwIfNotFound();
+
+    return this.uow.withTransaction(async (trx: Knex.Transaction) => {
+      // Triggers `onBankRuleDeleting` event.
+      await this.eventPublisher.emitAsync(events.bankRules.onDeleting, {
+        oldBankRule,
+        ruleId,
+        trx,
+      } as IBankRuleEventDeletingPayload);
+
+      await this.bankRuleConditionModel()
+        .query(trx)
+        .where('ruleId', ruleId)
+        .delete();
+
+      await this.bankRuleModel().query(trx).findById(ruleId).delete();
+
+      // Triggers `onBankRuleDeleted` event.
+      await this.eventPublisher.emitAsync(events.bankRules.onDeleted, {
+        ruleId,
+        trx,
+      } as IBankRuleEventDeletedPayload);
+    }, trx);
+  }
+}