feat(nestjs): migrate to NestJS

packages/server/src/modules/BankingTransactions/subscribers/PreventDeleteTransactionsOnDelete.ts

@@ -0,0 +1,42 @@
+import { events } from '@/common/events/events';
+import { ERRORS } from '../constants';
+import { OnEvent } from '@nestjs/event-emitter';
+import { ServiceError } from '@/modules/Items/ServiceError';
+import { Inject, Injectable } from '@nestjs/common';
+import { UncategorizedBankTransaction } from '../models/UncategorizedBankTransaction';
+import { ICommandCashflowDeletingPayload } from '../types/BankingTransactions.types';
+
+@Injectable()
+export class PreventDeleteTransactionOnDeleteSubscriber {
+  constructor(
+    @Inject(UncategorizedBankTransaction.name)
+    private readonly uncategorizedBankTransactionModel: typeof UncategorizedBankTransaction,
+  ) {}
+
+  /**
+   * Prevent delete cashflow transaction has converted from uncategorized transaction.
+   * @param {ICommandCashflowDeletingPayload} payload
+   */
+  @OnEvent(events.cashflow.onTransactionDeleting)
+  public async preventDeleteCashflowTransactionHasUncategorizedTransaction({
+    oldCashflowTransaction,
+    trx,
+  }: ICommandCashflowDeletingPayload) {
+    if (oldCashflowTransaction.uncategorizedTransactionId) {
+      const foundTransactions = await this.uncategorizedBankTransactionModel
+        .query(trx)
+        .where({
+          categorized: true,
+          categorizeRefId: oldCashflowTransaction.id,
+          categorizeRefType: 'CashflowTransaction',
+        });
+      // Throw the error if the cashflow transaction still linked to uncategorized transaction.
+      if (foundTransactions.length > 0) {
+        throw new ServiceError(
+          ERRORS.CANNOT_DELETE_TRANSACTION_CONVERTED_FROM_UNCATEGORIZED,
+          'Cannot delete cashflow transaction converted from uncategorized transaction.',
+        );
+      }
+    }
+  }
+}