// pages/index/index.js
Page({
  data: {
    totalDevices: 0,
    warningDevices: 0,
    expiredDevices: 0,
    warningList: [],
    recentList: []
  },

  onLoad() {
    this.loadData();
  },

  onShow() {
    // 每次显示页面时刷新数据
    this.loadData();
  },

  // 加载数据
  loadData() {
    // TODO: 从后端或本地存储加载数据
    // 这里先使用模拟数据
    const mockData = this.getMockData();
    
    this.setData({
      totalDevices: mockData.totalDevices,
      warningDevices: mockData.warningDevices,
      expiredDevices: mockData.expiredDevices,
      warningList: mockData.warningList.slice(0, 3), // 只显示前3条
      recentList: mockData.recentList.slice(0, 5) // 只显示前5条
    });
  },

  // 模拟数据
  getMockData() {
    return {
      totalDevices: 156,
      warningDevices: 12,
      expiredDevices: 3,
      warningList: [
        {
          id: '1',
          deviceName: '绝缘手套',
          deviceCode: 'SB-2023-001',
          useUnit: '施工一队',
          daysLeft: 7,
          warningLevel: '紧急'
        },
        {
          id: '2',
          deviceName: '安全帽',
          deviceCode: 'SB-2023-015',
          useUnit: '施工二队',
          daysLeft: 15,
          warningLevel: '预警'
        },
        {
          id: '3',
          deviceName: '安全带',
          deviceCode: 'SB-2023-028',
          useUnit: '施工三队',
          daysLeft: 20,
          warningLevel: '提醒'
        }
      ],
      recentList: [
        {
          id: '1',
          deviceId: '1',
          deviceName: '绝缘手套',
          operation: '查看详情',
          time: '2分钟前',
          icon: 'view-list'
        },
        {
          id: '2',
          deviceId: '2',
          deviceName: '安全帽',
          operation: '更新检验日期',
          time: '1小时前',
          icon: 'edit'
        },
        {
          id: '3',
          deviceId: '3',
          deviceName: '安全带',
          operation: '添加设备',
          time: '3小时前',
          icon: 'add'
        }
      ]
    };
  },

  // 跳转到预警列表
  goToWarning() {
    wx.switchTab({
      url: '/pages/warning/list/list'
    });
  },

  // 跳转到设备详情
  goToDeviceDetail(e) {
    const id = e.currentTarget.dataset.id;
    wx.navigateTo({
      url: `/pages/device/detail/detail?id=${id}`
    });
  },

  // 跳转到设备列表
  goToDeviceList() {
    wx.switchTab({
      url: '/pages/device/list/list'
    });
  },

  // 跳转到添加设备
  goToAddDevice() {
    wx.navigateTo({
      url: '/pages/device/add/add'
    });
  },

  // 跳转到统计分析
  goToStatistics() {
    wx.switchTab({
      url: '/pages/statistics/index/index'
    });
  },

  // 扫码查询
  scanCode() {
    wx.scanCode({
      success: (res) => {
        console.log('扫码结果:', res);
        // TODO: 根据扫码结果查询设备
        wx.showToast({
          title: '扫码成功',
          icon: 'success'
        });
      },
      fail: (err) => {
        console.error('扫码失败:', err);
        wx.showToast({
          title: '扫码失败',
          icon: 'none'
        });
      }
    });
  },

  // 下拉刷新
  onPullDownRefresh() {
    this.loadData();
    setTimeout(() => {
      wx.stopPullDownRefresh();
    }, 1000);
  }
});