import { dbQuery, dbGet, dbRun, getDb } from '../config/db.js';
import { sendContactNotification } from '../utils/mailer.js';

async function ensureDb() { await getDb(); }

export async function createMessage(req, res) {
  try {
    await ensureDb();
    const { name, email, subject, content } = req.body;
    if (!name || !email || !subject || !content) {
      return res.status(400).json({ success: false, message: 'Missing required fields' });
    }
    const result = await dbRun(
      'INSERT INTO messages (name, email, subject, content) VALUES (?,?,?,?)',
      [name, email, subject, content]
    );
    const newMsg = await dbGet('SELECT * FROM messages WHERE id = ?', [result.lastID]);
    
    // Send email notification asynchronously (non-blocking)
    sendContactNotification({ name, email, subject, content }).catch(err => {
      console.error('sendContactNotification async error:', err);
    });

    res.status(201).json({ success: true, message: 'Message sent successfully!', data: newMsg });
  } catch (error) {
    console.error('createMessage error:', error);
    res.status(500).json({ success: false, message: 'Server error sending message' });
  }
}

export async function getMessages(req, res) {
  try {
    await ensureDb();
    const messages = await dbQuery('SELECT * FROM messages ORDER BY id DESC');
    res.status(200).json({ success: true, count: messages.length, data: messages });
  } catch (error) {
    console.error('getMessages error:', error);
    res.status(500).json({ success: false, message: 'Server error retrieving messages' });
  }
}

export async function markAsRead(req, res) {
  try {
    await ensureDb();
    const { id } = req.params;
    const { read_status } = req.body;
    const message = await dbGet('SELECT * FROM messages WHERE id = ?', [id]);
    if (!message) return res.status(404).json({ success: false, message: 'Message not found' });
    await dbRun('UPDATE messages SET read_status = ? WHERE id = ?', [read_status !== undefined ? read_status : 1, id]);
    const updated = await dbGet('SELECT * FROM messages WHERE id = ?', [id]);
    res.status(200).json({ success: true, message: 'Message updated', data: updated });
  } catch (error) {
    console.error('markAsRead error:', error);
    res.status(500).json({ success: false, message: 'Server error' });
  }
}

export async function deleteMessage(req, res) {
  try {
    await ensureDb();
    const { id } = req.params;
    const message = await dbGet('SELECT * FROM messages WHERE id = ?', [id]);
    if (!message) return res.status(404).json({ success: false, message: 'Message not found' });
    await dbRun('DELETE FROM messages WHERE id = ?', [id]);
    res.status(200).json({ success: true, message: 'Message deleted' });
  } catch (error) {
    console.error('deleteMessage error:', error);
    res.status(500).json({ success: false, message: 'Server error' });
  }
}