const app = getApp()

Page({
  data: {
    stores: [],
    currentStoreId: null,
    currentStoreName: '',
    currentStoreAddress: '',
    loading: false
  },

  onLoad() {
    this.initCurrentStore()
    this.fetchStores()
  },

  onShow() {
    // 每次显示页面时刷新当前门店信息
    this.initCurrentStore()
  },

  async onPullDownRefresh() {
    try {
      await this.fetchStores()
    } finally {
      wx.stopPullDownRefresh()
    }
  },

  // 初始化当前门店信息
  initCurrentStore() {
    const currentStore = app.globalData.currentStore
    if (currentStore) {
      this.setData({
        currentStoreId: currentStore.storeId,
        currentStoreName: currentStore.storeName || '',
        currentStoreAddress: currentStore.storeAddress || ''
      })
    }
  },

  formatDistance(meters) {
    if (!meters) return ''
    if (meters < 1000) {
      return Math.round(meters) + 'm'
    }
    return (meters / 1000).toFixed(1) + 'km'
  },

  async fetchStores() {
    this.setData({ loading: true })
    
    try {
      // 如果已登录，尝试获取附近门店
      if (app.globalData.token) {
        wx.getLocation({
          type: 'gcj02',
          success: async (loc) => {
            try {
              const res = await app.request('/api/store/nearby', {
                latitude: loc.latitude,
                longitude: loc.longitude,
                radius: 50000
              })
              this.setData({ 
                stores: res.data || [],
                loading: false
              })
              // 更新当前门店的完整信息（地址等）
              this.updateCurrentStoreInfo(res.data || [])
            } catch (e) {
              // 如果失败，fallback 到门店列表
              this.fetchStoreList()
            }
          },
          fail: () => {
            this.fetchStoreList()
          }
        })
      } else {
        // 未登录，直接获取门店列表
        this.fetchStoreList()
      }
    } catch (e) {
      console.error('获取门店列表失败:', e)
      this.setData({ loading: false })
    }
  },

  async fetchStoreList() {
    try {
      const res = await app.request('/api/store/list')
      const stores = res.data.list || []
      this.setData({ 
        stores: stores,
        loading: false
      })
      // 更新当前门店的完整信息
      this.updateCurrentStoreInfo(stores)
    } catch (e) {
      console.error('获取门店列表失败:', e)
      this.setData({ loading: false })
    }
  },

  // 从门店列表中更新当前门店的完整信息
  updateCurrentStoreInfo(stores) {
    const { currentStoreId } = this.data
    if (!currentStoreId || !stores.length) return

    const currentStore = stores.find(s => s.id === currentStoreId)
    if (currentStore) {
      this.setData({
        currentStoreName: currentStore.name,
        currentStoreAddress: currentStore.address
      })
      // 同时更新全局数据
      app.globalData.currentStore = {
        storeId: currentStore.id,
        storeName: currentStore.name,
        storeAddress: currentStore.address
      }
    }
  },

  async selectStore(e) {
    const store = e.currentTarget.dataset.store

    wx.showLoading({ title: '切换中...' })

    this.setData({ 
      currentStoreId: store.id,
      currentStoreName: store.name,
      currentStoreAddress: store.address
    })

    // 更新全局门店
    app.globalData.currentStore = {
      storeId: store.id,
      storeName: store.name,
      storeAddress: store.address
    }

    // 清空旧的天梯用户信息
    app.globalData.ladderUser = null

    // 获取该门店的天梯用户信息
    try {
      await app.getLadderUser(store.id)
    } catch (e) {
      console.error('获取天梯信息失败:', e)
    }

    // 标记需要刷新数据
    app.globalData.storeChanged = true

    wx.hideLoading()
    wx.showToast({ title: '切换成功', icon: 'success' })

    setTimeout(() => {
      wx.navigateBack()
    }, 800)
  }
})