Updated account deletion process and refactor packages

The primary update was on the process of account deletion where email notifications are now sent to users. The @kit/emails was also renamed to @kit/email-templates and adjustments were accordingly made on the relevant code and configuration files. In addition, package interaction was refactored to enhance readability and ease of maintenance. Some minor alterations were made on the User Interface, and code comments were updated.

packages/features/accounts/src/server/services/personal-accounts.service.ts

@@ -1,6 +1,7 @@
 import { SupabaseClient } from '@supabase/supabase-js';
 
 import { BillingGatewayService } from '@kit/billing-gateway';
+import { Mailer } from '@kit/mailers';
 import { Logger } from '@kit/shared/logger';
 import { Database } from '@kit/supabase/database';
 
@@ -22,17 +23,25 @@ export class PersonalAccountsService {
    * Delete personal account of a user.
    * This will delete the user from the authentication provider and cancel all subscriptions.
    */
-  async deletePersonalAccount(
-    adminClient: SupabaseClient<Database>,
-    params: { userId: string },
-  ) {
+  async deletePersonalAccount(params: {
+    adminClient: SupabaseClient<Database>;
+
+    userId: string;
+    userEmail: string | null;
+
+    emailSettings: {
+      fromEmail: string;
+      productName: string;
+    };
+  }) {
     Logger.info(
       { userId: params.userId, name: this.namespace },
       'User requested deletion. Processing...',
     );
 
+    // execute the deletion of the user
     try {
-      await adminClient.auth.admin.deleteUser(params.userId);
+      await params.adminClient.auth.admin.deleteUser(params.userId);
     } catch (error) {
       Logger.error(
         {
@@ -46,6 +55,7 @@ export class PersonalAccountsService {
       throw new Error('Error deleting user');
     }
 
+    // Cancel all user subscriptions
     try {
       await this.cancelAllUserSubscriptions(params.userId);
     } catch (error) {
@@ -55,6 +65,57 @@ export class PersonalAccountsService {
         name: this.namespace,
       });
     }
+
+    // Send account deletion email
+    if (params.userEmail) {
+      try {
+        Logger.info(
+          {
+            userId: params.userId,
+            name: this.namespace,
+          },
+          `Sending account deletion email...`,
+        );
+
+        await this.sendAccountDeletionEmail({
+          fromEmail: params.emailSettings.fromEmail,
+          productName: params.emailSettings.productName,
+          userDisplayName: params.userEmail,
+          userEmail: params.userEmail,
+        });
+      } catch (error) {
+        Logger.error(
+          {
+            userId: params.userId,
+            name: this.namespace,
+            error,
+          },
+          `Error sending account deletion email`,
+        );
+      }
+    }
+  }
+
+  private async sendAccountDeletionEmail(params: {
+    fromEmail: string;
+    userEmail: string;
+    userDisplayName: string;
+    productName: string;
+  }) {
+    const { renderAccountDeleteEmail } = await import('@kit/email-templates');
+    const mailer = new Mailer();
+
+    const html = await renderAccountDeleteEmail({
+      userDisplayName: params.userDisplayName,
+      productName: params.productName,
+    });
+
+    await mailer.sendEmail({
+      to: params.userEmail,
+      from: params.fromEmail,
+      subject: 'Account Deletion Request',
+      html,
+    });
   }
 
   private async cancelAllUserSubscriptions(userId: string) {
@@ -93,6 +154,7 @@ export class PersonalAccountsService {
       );
     }
 
+    // execute all cancellation requests
     await Promise.all(cancellationRequests);
 
     Logger.info(