// /routes/email.js
const express = require("express");
const nodemailer = require("nodemailer");
const fs = require("fs");
const router = express.Router();

router.post("/", async (req, res) => {
  const { teacher, csvData, fileName, recipientEmail } = req.body;

  if (!teacher || !csvData || !fileName || !recipientEmail) {
    return res.status(400).json({ error: "Missing required fields" });
  }

  // Save the CSV data to a temporary file
  const filePath = `./${fileName}`;
  fs.writeFileSync(filePath, csvData);

  // Configure Nodemailer transporter
  const transporter = nodemailer.createTransport({
    service: "gmail",
    auth: {
      user: "swdc.ate@gmail.com", // Replace with your email
      pass: "umlc hbkr dpga iywd", // Replace with your app-specific password or token
    },
    // tls: {
    //   rejectUnauthorized: false, // Disable SSL verification
    // }
  });

  // Email options
  const mailOptions = {
    from: "swdc.ate@gmail.com", // Replace with your email
    to: recipientEmail,
    subject: `CSV File for ${teacher}`,
    text: `Attached is the CSV file for ${teacher}.`,
    attachments: [
      {
        filename: fileName,
        path: filePath,
      },
    ],
  };

  try {
    // Send email
    await transporter.sendMail(mailOptions);

    // Delete the temporary file after sending the email
    fs.unlinkSync(filePath);

    res.status(200).json({ message: "Email sent successfully" });
  } catch (error) {
    console.error("Error sending email:", error);
    res.status(500).json({ error: "Failed to send email" });
  }
});

module.exports = router;