add server to monorepo.

packages/server/src/services/Cashflow/DeleteCashflowTransactionService.ts

@@ -0,0 +1,85 @@
+import { Service, Inject } from 'typedi';
+import { Knex } from 'knex';
+import events from '@/subscribers/events';
+import {
+  ICashflowTransaction,
+  ICommandCashflowDeletedPayload,
+  ICommandCashflowDeletingPayload,
+} from '@/interfaces';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import { ServiceError } from '@/exceptions';
+import { ERRORS } from './constants';
+import UnitOfWork from '@/services/UnitOfWork';
+import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
+
+@Service()
+export default class CommandCashflowTransactionService {
+  @Inject()
+  tenancy: HasTenancyService;
+
+  @Inject()
+  eventPublisher: EventPublisher;
+
+  @Inject()
+  uow: UnitOfWork;
+
+  /**
+   * Deletes the cashflow transaction with associated journal entries.
+   * @param {number} tenantId -
+   * @param {number} userId - User id.
+   */
+  public deleteCashflowTransaction = async (
+    tenantId: number,
+    cashflowTransactionId: number
+  ): Promise<{ oldCashflowTransaction: ICashflowTransaction }> => {
+    const { CashflowTransaction, CashflowTransactionLine } =
+      this.tenancy.models(tenantId);
+
+    // Retrieve the cashflow transaction.
+    const oldCashflowTransaction = await CashflowTransaction.query().findById(
+      cashflowTransactionId
+    );
+    // Throw not found error if the given transaction id not found.
+    this.throwErrorIfTransactionNotFound(oldCashflowTransaction);
+
+    // Starting database transaction.
+    return this.uow.withTransaction(tenantId, async (trx: Knex.Transaction) => {
+      // Triggers `onCashflowTransactionDelete` event.
+      await this.eventPublisher.emitAsync(events.cashflow.onTransactionDeleting, {
+        trx,
+        tenantId,
+        oldCashflowTransaction,
+      } as ICommandCashflowDeletingPayload);
+
+      // Delete cashflow transaction associated lines first.
+      await CashflowTransactionLine.query(trx)
+        .where('cashflow_transaction_id', cashflowTransactionId)
+        .delete();
+
+      // Delete cashflow transaction.
+      await CashflowTransaction.query(trx)
+        .findById(cashflowTransactionId)
+        .delete();
+
+      // Triggers `onCashflowTransactionDeleted` event.
+      await this.eventPublisher.emitAsync(events.cashflow.onTransactionDeleted, {
+        trx,
+        tenantId,
+        cashflowTransactionId,
+        oldCashflowTransaction,
+      } as ICommandCashflowDeletedPayload);
+
+      return { oldCashflowTransaction };
+    });
+  };
+
+  /**
+   * Throw not found error if the given transaction id not found.
+   * @param transaction
+   */
+  private throwErrorIfTransactionNotFound(transaction) {
+    if (!transaction) {
+      throw new ServiceError(ERRORS.CASHFLOW_TRANSACTION_NOT_FOUND);
+    }
+  }
+}