import { Router } from 'express';
import { getDB } from '../db/init.js';
import { authMiddleware } from '../middleware/auth.js';

const router = Router();

/**
 * @openapi
 * /cv:
 *   get:
 *     summary: Get CV data
 *     tags: [CV]
 *     responses:
 *       200:
 *         description: CV data
 *         content:
 *           application/json:
 *             schema:
 *               type: object
 *       404:
 *         description: CV data not found
 */
router.get('/', async (req, res) => {
  try {
    const db = await getDB();
    const row = await db('cv_data').where({ id: 1 }).first();
    
    if (!row) {
      return res.status(404).json({ error: 'CV data not found' });
    }
    
    res.json(JSON.parse(row.data));
  } catch (error) {
    console.error('Error fetching CV:', error);
    res.status(500).json({ error: 'Failed to fetch CV data' });
  }
});

/**
 * @openapi
 * /cv:
 *   put:
 *     summary: Update CV data
 *     tags: [CV]
 *     security:
 *       - bearerAuth: []
 *     requestBody:
 *       required: true
 *       content:
 *         application/json:
 *           schema:
 *             type: object
 *     responses:
 *       200:
 *         description: CV data updated
 *       401:
 *         description: Unauthorized
 */
router.put('/', authMiddleware, async (req, res) => {
  try {
    const data = req.body;
    
    if (!data || typeof data !== 'object') {
      return res.status(400).json({ error: 'Invalid CV data' });
    }
    
    if (!data.personal?.name) {
      return res.status(400).json({ error: 'personal.name is required' });
    }
    
    const db = await getDB();
    await db('cv_data').where({ id: 1 }).update({
      data: JSON.stringify(data),
      updated_at: db.fn.now()
    });
    
    res.json({ success: true, message: 'CV data updated' });
  } catch (error) {
    console.error('Error updating CV:', error);
    res.status(500).json({ error: 'Failed to update CV data' });
  }
});

/**
 * @openapi
 * /cv/export:
 *   get:
 *     summary: Export CV data as JSON file
 *     tags: [CV]
 *     responses:
 *       200:
 *         description: CV JSON file
 *         content:
 *           application/json:
 *             schema:
 *               type: object
 */
router.get('/export', async (req, res) => {
  try {
    const db = await getDB();
    const row = await db('cv_data').where({ id: 1 }).first();
    
    if (!row) {
      return res.status(404).json({ error: 'CV data not found' });
    }
    
    res.setHeader('Content-Type', 'application/json');
    res.setHeader('Content-Disposition', 'attachment; filename="cv.json"');
    res.send(row.data);
  } catch (error) {
    console.error('Error exporting CV:', error);
    res.status(500).json({ error: 'Failed to export CV data' });
  }
});

/**
 * @openapi
 * /cv/import:
 *   post:
 *     summary: Import CV data from JSON
 *     tags: [CV]
 *     security:
 *       - bearerAuth: []
 *     requestBody:
 *       required: true
 *       content:
 *         application/json:
 *           schema:
 *             type: object
 *     responses:
 *       200:
 *         description: CV data imported
 *       401:
 *         description: Unauthorized
 */
router.post('/import', authMiddleware, async (req, res) => {
  try {
    const data = req.body;
    
    if (!data || typeof data !== 'object') {
      return res.status(400).json({ error: 'Invalid CV data' });
    }
    
    if (!data.personal?.name) {
      return res.status(400).json({ error: 'personal.name is required' });
    }
    
    const db = await getDB();
    await db('cv_data').where({ id: 1 }).update({
      data: JSON.stringify(data),
      updated_at: db.fn.now()
    });
    
    res.json({ success: true, message: 'CV data imported' });
  } catch (error) {
    console.error('Error importing CV:', error);
    res.status(500).json({ error: 'Failed to import CV data' });
  }
});

export default router;