email refactor

backend/services/email/core/EmailClient.js

@@ -0,0 +1,110 @@
+const { SESClient, SendEmailCommand } = require("@aws-sdk/client-ses");
+const { getAWSConfig } = require("../../../config/aws");
+const { htmlToPlainText } = require("./emailUtils");
+
+/**
+ * EmailClient handles AWS SES configuration and core email sending functionality
+ * This class is responsible for:
+ * - Initializing the AWS SES client
+ * - Sending emails with HTML and plain text content
+ * - Managing email sending state (enabled/disabled via environment)
+ */
+class EmailClient {
+  constructor() {
+    this.sesClient = null;
+    this.initialized = false;
+  }
+
+  /**
+   * Initialize the AWS SES client
+   * @returns {Promise<void>}
+   */
+  async initialize() {
+    if (this.initialized) return;
+
+    try {
+      // Use centralized AWS configuration with credential profiles
+      const awsConfig = getAWSConfig();
+      this.sesClient = new SESClient(awsConfig);
+
+      this.initialized = true;
+      console.log("AWS SES Email Client initialized successfully");
+    } catch (error) {
+      console.error("Failed to initialize AWS SES Email Client:", error);
+      throw error;
+    }
+  }
+
+  /**
+   * Send an email using AWS SES
+   * @param {string|string[]} to - Email address(es) to send to
+   * @param {string} subject - Email subject line
+   * @param {string} htmlContent - HTML content of the email
+   * @param {string|null} textContent - Plain text content (auto-generated from HTML if not provided)
+   * @returns {Promise<{success: boolean, messageId?: string, error?: string}>}
+   */
+  async sendEmail(to, subject, htmlContent, textContent = null) {
+    if (!this.initialized) {
+      await this.initialize();
+    }
+
+    // Check if email sending is enabled in the environment
+    if (!process.env.EMAIL_ENABLED || process.env.EMAIL_ENABLED !== "true") {
+      console.log("Email sending disabled in environment");
+      return { success: true, messageId: "disabled" };
+    }
+
+    // Auto-generate plain text from HTML if not provided
+    if (!textContent) {
+      textContent = htmlToPlainText(htmlContent);
+    }
+
+    // Use friendly sender name format for better recognition
+    const fromName = process.env.SES_FROM_NAME || "RentAll";
+    const fromEmail = process.env.SES_FROM_EMAIL;
+    const source = `${fromName} <${fromEmail}>`;
+
+    const params = {
+      Source: source,
+      Destination: {
+        ToAddresses: Array.isArray(to) ? to : [to],
+      },
+      Message: {
+        Subject: {
+          Data: subject,
+          Charset: "UTF-8",
+        },
+        Body: {
+          Html: {
+            Data: htmlContent,
+            Charset: "UTF-8",
+          },
+          Text: {
+            Data: textContent,
+            Charset: "UTF-8",
+          },
+        },
+      },
+    };
+
+    // Add reply-to address if configured
+    if (process.env.SES_REPLY_TO_EMAIL) {
+      params.ReplyToAddresses = [process.env.SES_REPLY_TO_EMAIL];
+    }
+
+    try {
+      const command = new SendEmailCommand(params);
+      const result = await this.sesClient.send(command);
+
+      console.log(
+        `Email sent successfully to ${to}, MessageId: ${result.MessageId}`
+      );
+      return { success: true, messageId: result.MessageId };
+    } catch (error) {
+      console.error("Failed to send email:", error);
+      return { success: false, error: error.message };
+    }
+  }
+}
+
+module.exports = EmailClient;