6658 workflows add a first twenty piece email sender (#6965)

packages/twenty-server/src/modules/mail-sender/workflow-actions/send-email.workflow-action.ts

@@ -0,0 +1,77 @@
+import { Injectable, Logger } from '@nestjs/common';
+
+import { z } from 'zod';
+import Handlebars from 'handlebars';
+import { JSDOM } from 'jsdom';
+import DOMPurify from 'dompurify';
+import { WorkflowActionEmail } from 'twenty-emails';
+import { render } from '@react-email/components';
+
+import { WorkflowActionResult } from 'src/modules/workflow/workflow-executor/types/workflow-action-result.type';
+import { WorkflowSendEmailStep } from 'src/modules/workflow/workflow-executor/types/workflow-action.type';
+import { EnvironmentService } from 'src/engine/core-modules/environment/environment.service';
+import { EmailService } from 'src/engine/core-modules/email/email.service';
+
+@Injectable()
+export class SendEmailWorkflowAction {
+  private readonly logger = new Logger(SendEmailWorkflowAction.name);
+  constructor(
+    private readonly environmentService: EnvironmentService,
+    private readonly emailService: EmailService,
+  ) {}
+
+  async execute({
+    step,
+    payload,
+  }: {
+    step: WorkflowSendEmailStep;
+    payload: {
+      email: string;
+      [key: string]: string;
+    };
+  }): Promise<WorkflowActionResult> {
+    try {
+      const emailSchema = z.string().trim().email('Invalid email');
+
+      const result = emailSchema.safeParse(payload.email);
+
+      if (!result.success) {
+        this.logger.warn(`Email '${payload.email}' invalid`);
+
+        return { result: { success: false } };
+      }
+
+      const mainText = Handlebars.compile(step.settings.template)(payload);
+
+      const window = new JSDOM('').window;
+      const purify = DOMPurify(window);
+      const safeHTML = purify.sanitize(mainText || '');
+
+      const email = WorkflowActionEmail({
+        dangerousHTML: safeHTML,
+        title: step.settings.title,
+        callToAction: step.settings.callToAction,
+      });
+      const html = render(email, {
+        pretty: true,
+      });
+      const text = render(email, {
+        plainText: true,
+      });
+
+      await this.emailService.send({
+        from: `${this.environmentService.get(
+          'EMAIL_FROM_NAME',
+        )} <${this.environmentService.get('EMAIL_FROM_ADDRESS')}>`,
+        to: payload.email,
+        subject: step.settings.subject || '',
+        text,
+        html,
+      });
+
+      return { result: { success: true } };
+    } catch (error) {
+      return { error };
+    }
+  }
+}