feat: new email template for scheduled-execution-failed email (#5519)

What it says on the box. Relates to # [1-1687](https://linear.app/unleash/issue/1-1687/send-an-email-when-the-scheduling-fails) <img width="782" alt="Screenshot 2023-12-01 at 15 33 08" src="https://github.com/Unleash/unleash/assets/104830839/513a0a71-5ca5-4ea7-8482-7903c8485737"> --------- Signed-off-by: andreas-unleash <[email protected]> Co-authored-by: Thomas Heartman <[email protected]>
Unleash · Dec 1, 2023 · be17b7f · be17b7f
1 parent fba8022
commit be17b7f
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diff --git a/src/lib/services/email-service.ts b/src/lib/services/email-service.ts
@@ -31,6 +31,8 @@ export interface IEmailEnvelope {
 
 const RESET_MAIL_SUBJECT = 'Unleash - Reset your password';
 const GETTING_STARTED_SUBJECT = 'Welcome to Unleash';
+const SCHEDULED_EXECUTION_FAILED_SUBJECT =
+    'Unleash - Scheduled change request could not be applied';
 
 export const MAIL_ACCEPTED = '250 Accepted';
 
@@ -68,6 +70,76 @@ export class EmailService {
         }
     }
 
+    async sendScheduledExecutionFailedEmail(
+        name: string,
+        recipient: string,
+        changeRequestLink: string,
+        changeRequestTitle: string,
+        scheduledAt: string,
+        errorMessage: string,
+    ): Promise<IEmailEnvelope> {
+        if (this.configured()) {
+            const year = new Date().getFullYear();
+            const bodyHtml = await this.compileTemplate(
+                'scheduled-execution-failed',
+                TemplateFormat.HTML,
+                {
+                    changeRequestLink,
+                    scheduledAt,
+                    errorMessage,
+                    name,
+                    year,
+                },
+            );
+            const bodyText = await this.compileTemplate(
+                'scheduled-execution-failed',
+                TemplateFormat.PLAIN,
+                {
+                    changeRequestLink,
+                    changeRequestTitle,
+                    scheduledAt,
+                    errorMessage,
+                    name,
+                    year,
+                },
+            );
+            const email = {
+                from: this.sender,
+                to: recipient,
+                subject: SCHEDULED_EXECUTION_FAILED_SUBJECT,
+                html: bodyHtml,
+                text: bodyText,
+            };
+            process.nextTick(() => {
+                this.mailer!.sendMail(email).then(
+                    () =>
+                        this.logger.info(
+                            'Successfully sent scheduled-execution-failed email',
+                        ),
+                    (e) =>
+                        this.logger.warn(
+                            'Failed to send scheduled-execution-failed email',
+                            e,
+                        ),
+                );
+            });
+            return Promise.resolve(email);
+        }
+        return new Promise((res) => {
+            this.logger.warn(
+                'No mailer is configured. Please read the docs on how to configure an email service',
+            );
+            this.logger.debug('Change request link: ', changeRequestLink);
+            res({
+                from: this.sender,
+                to: recipient,
+                subject: SCHEDULED_EXECUTION_FAILED_SUBJECT,
+                html: '',
+                text: '',
+            });
+        });
+    }
+
     async sendResetMail(
         name: string,
         recipient: string,