email refactor

backend/services/email/domain/AlphaInvitationEmailService.js

@@ -0,0 +1,71 @@
+const EmailClient = require("../core/EmailClient");
+const TemplateManager = require("../core/TemplateManager");
+
+/**
+ * AlphaInvitationEmailService handles alpha program invitation emails
+ * This service is responsible for:
+ * - Sending alpha access invitation codes to new testers
+ */
+class AlphaInvitationEmailService {
+  constructor() {
+    this.emailClient = new EmailClient();
+    this.templateManager = new TemplateManager();
+    this.initialized = false;
+  }
+
+  /**
+   * Initialize the alpha invitation email service
+   * @returns {Promise<void>}
+   */
+  async initialize() {
+    if (this.initialized) return;
+
+    await Promise.all([
+      this.emailClient.initialize(),
+      this.templateManager.initialize(),
+    ]);
+
+    this.initialized = true;
+    console.log("Alpha Invitation Email Service initialized successfully");
+  }
+
+  /**
+   * Send alpha invitation email
+   * @param {string} email - Recipient's email address
+   * @param {string} code - Alpha access code
+   * @returns {Promise<{success: boolean, messageId?: string, error?: string}>}
+   */
+  async sendAlphaInvitation(email, code) {
+    if (!this.initialized) {
+      await this.initialize();
+    }
+
+    try {
+      const frontendUrl = process.env.FRONTEND_URL || "http://localhost:3000";
+
+      const variables = {
+        code: code,
+        email: email,
+        frontendUrl: frontendUrl,
+        title: "Welcome to Alpha Testing!",
+        message: `You've been invited to join our exclusive alpha testing program. Use the code <strong>${code}</strong> to unlock access and be among the first to experience our platform.`,
+      };
+
+      const htmlContent = await this.templateManager.renderTemplate(
+        "alphaInvitationToUser",
+        variables
+      );
+
+      return await this.emailClient.sendEmail(
+        email,
+        "Your Alpha Access Code - RentAll",
+        htmlContent
+      );
+    } catch (error) {
+      console.error("Failed to send alpha invitation email:", error);
+      return { success: false, error: error.message };
+    }
+  }
+}
+
+module.exports = AlphaInvitationEmailService;