const express = require('express');
const router = express.Router();
const Device = require('../models/Device');

// 获取所有设备
router.get('/', async (req, res) => {
  try {
    const devices = await Device.find();
    res.json(devices);
  } catch (err) {
    res.status(500).json({ message: err.message });
  }
});

// 添加新设备
router.post('/', async (req, res) => {
  const device = new Device({
    deviceId: req.body.deviceId,
    name: req.body.name
  });

  try {
    const newDevice = await device.save();
    res.status(201).json(newDevice);
  } catch (err) {
    res.status(400).json({ message: err.message });
  }
});

// 更新设备状态
router.patch('/:deviceId', async (req, res) => {
  try {
    const device = await Device.findOne({ deviceId: req.params.deviceId });
    if (!device) {
      return res.status(404).json({ message: '设备不存在' });
    }
    if (req.body.status) {
      device.status = req.body.status;
    }
    device.lastSeen = new Date();
    const updatedDevice = await device.save();
    res.json(updatedDevice);
  } catch (err) {
    res.status(400).json({ message: err.message });
  }
});

module.exports = router;