/**
 * 首页 - 设备列表
 */
const storage = require('../../utils/storage.js');
const app = getApp();

Page({
  data: {
    userInfo: null,
    devices: [],
  },

  onLoad() {
    // 未登录跳转登录页
    if (!app.isLoggedIn()) {
      wx.reLaunch({ url: '/pages/login/login' });
      return;
    }
  },

  onShow() {
    // 每次显示时刷新设备列表
    this.refreshData();
  },

  /**
   * 刷新数据
   */
  refreshData() {
    const devices = storage.getDeviceList();
    this.setData({
      userInfo: app.globalData.userInfo,
      devices: devices,
    });
  },

  /**
   * 点击设备卡片 - 跳转详情页
   */
  handleDeviceTap(e) {
    const index = e.currentTarget.dataset.index;
    const device = this.data.devices[index];
    if (!device) return;

    // 保存当前设备到全局
    app.globalData.currentDevice = device;

    wx.navigateTo({
      url: `/pages/device/detail/detail?sn=${device.serialNumber}`,
    });
  },

  /**
   * 删除设备
   */
  handleDeviceDelete(e) {
    const serialNumber = e.detail.serialNumber;
    wx.showModal({
      title: '删除设备',
      content: '确定删除该设备配置吗？',
      confirmColor: '#ff4d4f',
      success: (res) => {
        if (res.confirm) {
          storage.removeDevice(serialNumber);
          this.refreshData();
          wx.showToast({ title: '已删除', icon: 'success' });
        }
      },
    });
  },

  /**
   * 设备启停切换
   */
  handleDeviceSwitch(e) {
    const serialNumber = e.detail.serialNumber;
    const enabled = e.detail.enabled;
    const devices = this.data.devices;
    const index = devices.findIndex(d => d.serialNumber === serialNumber);
    if (index >= 0) {
      devices[index].enabled = enabled;
      this.setData({ devices });
      storage.updateDevice(devices[index]);
    }
  },

  /**
   * 添加设备 - 跳转扫描页
   */
  handleAddDevice() {
    wx.navigateTo({
      url: '/pages/device/scan/scan',
    });
  },

  /**
   * 退出登录
   */
  handleLogout() {
    wx.showModal({
      title: '退出登录',
      content: '确定要退出登录吗？',
      success: (res) => {
        if (res.confirm) {
          app.clearLoginInfo();
          wx.reLaunch({ url: '/pages/login/login' });
        }
      },
    });
  },

  /**
   * 下拉刷新
   */
  onPullDownRefresh() {
    this.refreshData();
    wx.stopPullDownRefresh();
  },
});