refactor: banking services to Nestjs

packages/server-nest/src/modules/BankingAccounts/subscribers/DisconnectPlaidItemOnAccountDeleted.ts

@@ -0,0 +1,57 @@
+import { OnEvent } from '@nestjs/event-emitter';
+import { Inject, Injectable } from '@nestjs/common';
+import { IAccountEventDeletedPayload } from '@/interfaces/Account';
+import { events } from '@/common/events/events';
+import { PlaidItem } from '@/modules/BankingPlaid/models/PlaidItem';
+import { Account } from '@/modules/Accounts/models/Account.model';
+import { PlaidApi } from 'plaid';
+import { PLAID_CLIENT } from '@/modules/Plaid/Plaid.module';
+
+@Injectable()
+export class DisconnectPlaidItemOnAccountDeleted {
+  constructor(
+    @Inject(PLAID_CLIENT) private plaidClient: PlaidApi,
+    @Inject(PlaidItem.name) private plaidItemModel: typeof PlaidItem,
+    @Inject(Account.name) private accountModel: typeof Account,
+  ) {}
+  /**
+   * Deletes Plaid item from the system and Plaid once the account deleted.
+   * @param {IAccountEventDeletedPayload} payload
+   * @returns {Promise<void>}
+   */
+  @OnEvent(events.accounts.onDeleted)
+  public async handleDisconnectPlaidItemOnAccountDelete({
+    tenantId,
+    oldAccount,
+    trx,
+  }: IAccountEventDeletedPayload) {
+    // Can't continue if the deleted account is not linked to Plaid item.
+    if (!oldAccount.plaidItemId) return;
+
+    // Retrieves the Plaid item that associated to the deleted account.
+    const oldPlaidItem = await this.plaidItemModel
+      .query(trx)
+      .findOne('plaidItemId', oldAccount.plaidItemId);
+    // Unlink the Plaid item from all account before deleting it.
+    await this.accountModel
+      .query(trx)
+      .where('plaidItemId', oldAccount.plaidItemId)
+      .patch({
+        plaidAccountId: null,
+        plaidItemId: null,
+      });
+    // Remove the Plaid item from the system.
+    await this.plaidItemModel
+      .query(trx)
+      .findOne('plaidItemId', oldAccount.plaidItemId)
+      .delete();
+
+    // Remove Plaid item once the transaction resolve.
+    if (oldPlaidItem) {
+      // Remove the Plaid item.
+      await this.plaidClient.itemRemove({
+        access_token: oldPlaidItem.plaidAccessToken,
+      });
+    }
+  }
+}