const express = require('express')
const nodemailer = require('nodemailer')
const cors = require('cors')

const app = express()
app.use(cors())
app.use(express.json())

const transporter = nodemailer.createTransport({
  host: process.env.SMTP_HOST,
  port: parseInt(process.env.SMTP_PORT || '587'),
  secure: process.env.SMTP_SECURE === 'true',
  auth: {
    user: process.env.SMTP_USER,
    pass: process.env.SMTP_PASS,
  },
  tls: { rejectUnauthorized: false },
})

app.post('/contact', async (req, res) => {
  const { name, email, service, message } = req.body

  if (!name || !email || !message) {
    return res.status(400).json({ error: 'Name, email, and message are required.' })
  }

  try {
    await transporter.sendMail({
      from: `"KenJim Technologies" <${process.env.FROM_EMAIL || process.env.SMTP_USER}>`,
      to: process.env.CONTACT_TO,
      replyTo: email,
      subject: `[kenjim.com] ${service || 'General Inquiry'} — ${name}`,
      text: `Name: ${name}\nEmail: ${email}\nService: ${service || 'General Inquiry'}\n\n${message}`,
      html: `
        <p><strong>Name:</strong> ${name}</p>
        <p><strong>Email:</strong> <a href="mailto:${email}">${email}</a></p>
        <p><strong>Service:</strong> ${service || 'General Inquiry'}</p>
        <hr/>
        <p>${message.replace(/\n/g, '<br>')}</p>
      `,
    })
    res.json({ ok: true })
  } catch (err) {
    console.error('Mail error:', err)
    res.status(500).json({ error: 'Failed to send message. Please try again.' })
  }
})

app.listen(3001, () => console.log('API listening on :3001'))