feat: cannot delete a predefined branding template

packages/server/src/services/PdfTemplate/DeletePdfTemplate.ts

@@ -1,8 +1,10 @@
 import { Inject, Service } from 'typedi';
 import HasTenancyService from '../Tenancy/TenancyService';
 import UnitOfWork from '../UnitOfWork';
-import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
 import events from '@/subscribers/events';
+import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
+import { ServiceError } from '@/exceptions';
+import { ERRORS } from './types';
 
 @Service()
 export class DeletePdfTemplate {
@@ -18,16 +20,26 @@ export class DeletePdfTemplate {
   /**
    * Deletes a pdf template.
    * @param {number} tenantId
-   * @param {number} templateId
+   * @param {number} templateId - Pdf template id.
    */
-  public deletePdfTemplate(tenantId: number, templateId: number) {
+  public async deletePdfTemplate(tenantId: number, templateId: number) {
     const { PdfTemplate } = this.tenancy.models(tenantId);
 
+    const oldPdfTemplate = await PdfTemplate.query()
+      .findById(templateId)
+      .throwIfNotFound();
+
+    // Cannot delete the predefined pdf templates.
+    if (oldPdfTemplate.predefined) {
+      throw new ServiceError(ERRORS.CANNOT_DELETE_PREDEFINED_PDF_TEMPLATE);
+    }
     return this.uow.withTransaction(tenantId, async (trx) => {
       // Triggers `onPdfTemplateDeleting` event.
       await this.eventPublisher.emitAsync(events.pdfTemplate.onDeleting, {
         tenantId,
         templateId,
+        oldPdfTemplate,
+        trx,
       });
       await PdfTemplate.query(trx).deleteById(templateId);
 
@@ -35,6 +47,8 @@ export class DeletePdfTemplate {
       await this.eventPublisher.emitAsync(events.pdfTemplate.onDeleted, {
         tenantId,
         templateId,
+        oldPdfTemplate,
+        trx,
       });
     });
   }

packages/server/src/services/PdfTemplate/types.ts

@@ -1,3 +1,6 @@
+export enum ERRORS {
+  CANNOT_DELETE_PREDEFINED_PDF_TEMPLATE = 'CANNOT_DELETE_PREDEFINED_PDF_TEMPLATE',
+}
 export interface ICreateInvoicePdfTemplateDTO {
   // Colors
   primaryColor?: string;

packages/webapp/src/containers/BrandingTemplates/alerts/DeleteBrandingTemplateAlert.tsx

@@ -3,7 +3,7 @@ import React from 'react';
 import intl from 'react-intl-universal';
 import { AppToaster } from '@/components';
 import { Alert, Intent } from '@blueprintjs/core';
-import { useDeletePdfTemplate} from '@/hooks/query/pdf-templates';
+import { useDeletePdfTemplate } from '@/hooks/query/pdf-templates';
 
 import withAlertStoreConnect from '@/containers/Alert/withAlertStoreConnect';
 import withAlertActions from '@/containers/Alert/withAlertActions';
@@ -35,13 +35,30 @@ function DeleteBrandingTemplateAlert({
         });
         closeAlert(name);
       })
-      .catch((error) => {
-        AppToaster.show({
-          message: 'Something went wrong.',
-          intent: Intent.DANGER,
-        });
-        closeAlert(name);
-      });
+      .catch(
+        ({
+          response: {
+            data: { errors },
+          },
+        }) => {
+          if (
+            errors.find(
+              (error) => error.type === 'CANNOT_DELETE_PREDEFINED_PDF_TEMPLATE',
+            )
+          ) {
+            AppToaster.show({
+              message: 'Cannot delete a predefined branding template.',
+              intent: Intent.DANGER,
+            });
+          } else {
+            AppToaster.show({
+              message: 'Something went wrong.',
+              intent: Intent.DANGER,
+            });
+          }
+          closeAlert(name);
+        },
+      );
   };
 
   const handleCancel = () => {
@@ -57,9 +74,7 @@ function DeleteBrandingTemplateAlert({
       onCancel={handleCancel}
       onConfirm={handleConfirmDelete}
     >
-      <p>
-        Are you sure want to delete branding template?
-      </p>
+      <p>Are you sure want to delete branding template?</p>
     </Alert>
   );
 }
@@ -68,5 +83,3 @@ export default compose(
   withAlertStoreConnect(),
   withAlertActions,
 )(DeleteBrandingTemplateAlert);
-
-