Page({
  data: {
    keyword: '',
    sortType: 'default',
    sortOrder: 'desc',
    goodsList: [],
    pageNum: 1,
    pageSize: 10,
    isLoading: false,
    hasMore: true,
    isRefreshing: false
  },

  onLoad(options) {
    if (options.keyword) {
      this.setData({
        keyword: decodeURIComponent(options.keyword)
      }, () => {
        this.loadGoodsList(true)
      })
    }
  },

  // 切换排序方式
  onSortChange(e) {
    const newType = e.currentTarget.dataset.type
    let newOrder = 'desc'

    if (newType === this.data.sortType) {
      newOrder = this.data.sortOrder === 'desc' ? 'asc' : 'desc'
    }

    this.setData({
      sortType: newType,
      sortOrder: newOrder,
      goodsList: [],
      pageNum: 1,
      hasMore: true
    }, () => {
      this.loadGoodsList(true)
    })
  },

  // 加载商品列表
  async loadGoodsList(isRefresh = false) {
    if (this.data.isLoading || (!this.data.hasMore && !isRefresh)) return

    this.setData({ isLoading: true })

    try {
      // 模拟API延迟
      await new Promise(resolve => setTimeout(resolve, 500))

      // 模拟搜索逻辑
      let filteredProducts = this.mockProducts.filter(item => 
        item.title.toLowerCase().includes(this.data.keyword.toLowerCase())
      )

      // 根据排序类型和顺序处理数据
      if (this.data.sortType !== 'default') {
        filteredProducts.sort((a, b) => {
          const factor = this.data.sortOrder === 'asc' ? 1 : -1
          const aValue = parseFloat(a[this.data.sortType === 'sales' ? 'sales' : this.data.sortType])
          const bValue = parseFloat(b[this.data.sortType === 'sales' ? 'sales' : this.data.sortType])
          return (aValue - bValue) * factor
        })
      }

      // 模拟分页
      const start = (this.data.pageNum - 1) * this.data.pageSize
      const end = start + this.data.pageSize
      const pageData = filteredProducts.slice(start, end)

      this.setData({
        goodsList: isRefresh ? pageData : [...this.data.goodsList, ...pageData],
        pageNum: this.data.pageNum + 1,
        hasMore: end < filteredProducts.length
      })
    } catch (error) {
      wx.showToast({
        title: '加载失败',
        icon: 'none'
      })
    } finally {
      this.setData({ 
        isLoading: false,
        isRefreshing: false
      })
    }
  },

  // 下拉刷新
  onRefresh() {
    this.setData({
      isRefreshing: true,
      pageNum: 1,
      hasMore: true
    }, () => {
      this.loadGoodsList(true)
    })
  },

  // 加载更多
  loadMore() {
    this.loadGoodsList()
  },

  // 跳转到搜索页
  navigateToSearch() {
    wx.navigateBack()
  },

  // 跳转到商品详情
  goToDetail(e) {
    const { id } = e.currentTarget.dataset
    wx.navigateTo({
      url: `/pages/goods/detail?id=${id}`
    })
  },

  // 模拟商品数据
  mockProducts: [
    {
      id: '1',
      title: 'Apple iPhone 14 Pro Max 256GB 暗紫色 5G手机',
      price: '9299.00',
      commission: '186.00',
      sales: 8526,
      image: '/static/images/goods/iphone.png'
    },
    {
      id: '2',
      title: '华为 Mate60 Pro 12+512GB 雅川青 5G手机',
      price: '8999.00',
      commission: '180.00',
      sales: 12653,
      image: '/static/images/goods/huawei.png'
    },
    {
      id: '3',
      title: '小米14 Pro 16+1TB 钛金属黑 徕卡光学',
      price: '5999.00',
      commission: '120.00',
      sales: 6832,
      image: '/static/images/goods/xiaomi.png'
    },
    {
      id: '4',
      title: 'OPPO Find X7 Ultra 16+512GB 微晶玉 生态旗舰',
      price: '6999.00',
      commission: '140.00',
      sales: 4521,
      image: '/static/images/goods/oppo.png'
    },
    {
      id: '5',
      title: 'vivo X100 Pro+ 16+512GB 墨羽 蔡司影像',
      price: '6499.00',
      commission: '130.00',
      sales: 5643,
      image: '/static/images/goods/vivo.png'
    },
    {
      id: '6',
      title: 'Apple MacBook Pro 14 M3 Pro 18G 1TB',
      price: '18999.00',
      commission: '380.00',
      sales: 2341,
      image: '/static/images/goods/macbook.png'
    },
    {
      id: '7',
      title: '华为 MateBook X Pro 13.9英寸 i9 32G 2TB',
      price: '13999.00',
      commission: '280.00',
      sales: 1876,
      image: '/static/images/goods/matebook.png'
    },
    {
      id: '8',
      title: '小米 RedmiBook Pro 16 R7 32G 1TB',
      price: '6499.00',
      commission: '130.00',
      sales: 3654,
      image: '/static/images/goods/redmibook.png'
    }
  ]
})