const express = require('express');
const router = express.Router();
const db = require('../utils/db');
const auth = require('../middleware/auth');
const checkPermission = require('../middleware/checkPermission');

// 获取所有设置
router.get('/', async (req, res) => {
  try {
    const [settings] = await db.query('SELECT * FROM system_settings');
    const formattedSettings = settings.reduce((acc, setting) => {
      if (!acc[setting.category]) {
        acc[setting.category] = {};
      }
      acc[setting.category][setting.key] = {
        value: setting.value,
        description: setting.description
      };
      return acc;
    }, {});
    res.json(formattedSettings);
  } catch (error) {
    res.status(500).json({ message: error.message });
  }
});

// 获取指定类别的设置
router.get('/:category', async (req, res) => {
  try {
    const [settings] = await db.query(
      'SELECT * FROM system_settings WHERE category = ?',
      [req.params.category]
    );
    res.json(settings);
  } catch (error) {
    res.status(500).json({ message: error.message });
  }
});

// 更新设置（需要管理员权限）
router.put('/:category/:key', auth, checkPermission('system:manage'), async (req, res) => {
  try {
    const { category, key } = req.params;
    const { value } = req.body;

    await db.query(
      'UPDATE system_settings SET value = ? WHERE category = ? AND `key` = ?',
      [value, category, key]
    );

    res.json({ message: '设置更新成功' });
  } catch (error) {
    res.status(500).json({ message: error.message });
  }
});

module.exports = router;