const express = require('express');
const router = express.Router();
const db = require('../database');

// Get all cards
router.get('/', (req, res) => {
  db.all('SELECT * FROM cards ORDER BY created_at DESC', (err, rows) => {
    if (err) {
      console.error(err);
      res.status(500).json({ error: 'Database error' });
    } else {
      res.json(rows);
    }
  });
});

// Get card by ID
router.get('/:id', (req, res) => {
  const { id } = req.params;
  db.get('SELECT * FROM cards WHERE id = ?', [id], (err, row) => {
    if (err) {
      console.error(err);
      res.status(500).json({ error: 'Database error' });
    } else if (!row) {
      res.status(404).json({ error: 'Card not found' });
    } else {
      res.json(row);
    }
  });
});

// Create new card
router.post('/', (req, res) => {
  const { name, bank, description, image_url } = req.body;
  
  if (!name || !bank) {
    return res.status(400).json({ error: 'Name and bank are required' });
  }

  db.run(
    'INSERT INTO cards (name, bank, description, image_url) VALUES (?, ?, ?, ?)',
    [name, bank, description, image_url],
    function(err) {
      if (err) {
        console.error(err);
        res.status(500).json({ error: 'Database error' });
      } else {
        res.status(201).json({ 
          id: this.lastID, 
          name, 
          bank, 
          description,
          image_url
        });
      }
    }
  );
});

// Update card
router.put('/:id', (req, res) => {
  const { id } = req.params;
  const { name, bank, description, image_url } = req.body;

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

  db.run(
    'UPDATE cards SET name = ?, bank = ?, description = ?, image_url = ? WHERE id = ?',
    [name, bank, description, image_url, id],
    function(err) {
      if (err) {
        console.error(err);
        res.status(500).json({ error: 'Database error' });
      } else if (this.changes === 0) {
        res.status(404).json({ error: 'Card not found' });
      } else {
        res.json({ id: parseInt(id), name, bank, description, image_url });
      }
    }
  );
});

// Delete card
router.delete('/:id', (req, res) => {
  const { id } = req.params;
  
  db.run('DELETE FROM cards WHERE id = ?', [id], function(err) {
    if (err) {
      console.error(err);
      res.status(500).json({ error: 'Database error' });
    } else if (this.changes === 0) {
      res.status(404).json({ error: 'Card not found' });
    } else {
      res.json({ message: 'Card deleted successfully' });
    }
  });
});

module.exports = router;