Component({
  options: {
    addGlobalClass: true
  },

  data: {
    active: 0,
    list: [
      {
        pagePath: '/pages/index/index',
        text: '首页',
        icon: 'home-o',
        activeIcon: 'wap-home'
      },
      {
        pagePath: '/pages/category/category',
        text: '分类',
        icon: 'apps-o',
        activeIcon: 'apps-o'
      },
      {
        pagePath: '/pages/mine/mine',
        text: '我的',
        icon: 'user-o',
        activeIcon: 'manager'
      }
    ]
  },

  methods: {
    onChange(e) {
      const index = e.detail;
      const item = this.data.list[index];
      
      wx.switchTab({
        url: item.pagePath
      });
    },

    init() {
      const page = getCurrentPages().pop();
      const route = page ? `/${page.route}` : '';
      const active = this.data.list.findIndex(item => item.pagePath === route);
      
      if (active !== -1) {
        this.setData({ active });
      }
    }
  }
});