const { request } = require('../../utils/api.js')

Page({
  data: {
    city: '',
    locating: false,
    loading: false,
    errorMessage: '',
    stores: [],
  },

  onLoad(options) {
    if (options.scene) {
      this.resolveScene(decodeURIComponent(options.scene), options.source === 'nfc' ? 'NFC' : 'QRCODE')
    }
  },

  onCityInput(event) {
    this.setData({ city: event.detail.value })
  },

  async searchByCity() {
    const city = this.data.city.trim()
    if (!city) {
      this.setData({ errorMessage: '请输入城市名称' })
      return
    }
    await this.loadStores({ city })
  },

  locateNearby() {
    this.setData({ locating: true, errorMessage: '' })
    wx.getLocation({
      type: 'gcj02',
      success: async ({ latitude, longitude }) => {
        await this.loadStores({ latitude, longitude })
      },
      fail: () => {
        this.setData({ errorMessage: '定位未授权，请输入城市手工选店' })
      },
      complete: () => {
        this.setData({ locating: false })
      },
    })
  },

  async loadStores(filters) {
    this.setData({ loading: true, errorMessage: '' })
    try {
      const query = Object.entries(filters)
        .map(([key, value]) => `${encodeURIComponent(key)}=${encodeURIComponent(value)}`)
        .join('&')
      const response = await request(`/stores?${query}`)
      this.setData({ stores: response.data || [] })
    } catch (error) {
      this.setData({ errorMessage: error.message || '门店加载失败' })
    } finally {
      this.setData({ loading: false })
    }
  },

  openStore(event) {
    const storeId = event.currentTarget.dataset.storeId
    if (!storeId) return
    wx.navigateTo({ url: `/pages/store/detail?storeId=${encodeURIComponent(storeId)}` })
  },

  async resolveScene(code, sourceType) {
    this.setData({ loading: true, errorMessage: '' })
    try {
      const response = await request('/scenes/resolve', {
        method: 'POST',
        data: { code, sourceType },
      })
      const target = response.data
      const query = [`storeId=${encodeURIComponent(target.storeId)}`]
      if (target.roomId) query.push(`roomId=${encodeURIComponent(target.roomId)}`)
      wx.navigateTo({ url: `${target.page}?${query.join('&')}` })
    } catch (error) {
      this.setData({ errorMessage: error.message || '场景码已失效' })
    } finally {
      this.setData({ loading: false })
    }
  },
})