drone_delivery_of_medicines_applet/pages/order-detail/order-detail.js

// order-detail.js
Page({
  data: {
    order: null,
    mapCenter: {
      latitude: 39.9042,
      longitude: 116.4074
    },
    mapScale: 14
  },

  onLoad(options) {
    const orderId = parseInt(options.id)
    const app = getApp()
    const orders = app.getOrders()
    const order = orders.find(o => o.id === orderId)
    
    if (order) {
      this.setData({
        order: order
      })

      // 如果订单有地图数据，设置地图中心点和缩放级别
      if (order.mapTracking && order.mapTracking.markers) {
        this.setupMap(order.mapTracking.markers)
      }
    } else {
      wx.showToast({
        title: '订单不存在',
        icon: 'none'
      })
      setTimeout(() => {
        wx.navigateBack()
      }, 1500)
    }
  },

  // 设置地图中心点和缩放级别
  setupMap(markers) {
    if (markers.length === 0) return

    // 计算所有标记点的中心点
    let totalLat = 0
    let totalLng = 0
    markers.forEach(marker => {
      totalLat += marker.latitude
      totalLng += marker.longitude
    })

    const centerLat = totalLat / markers.length
    const centerLng = totalLng / markers.length

    // 计算合适的缩放级别（基于标记点之间的距离）
    let minLat = Infinity
    let maxLat = -Infinity
    let minLng = Infinity
    let maxLng = -Infinity

    markers.forEach(marker => {
      minLat = Math.min(minLat, marker.latitude)
      maxLat = Math.max(maxLat, marker.latitude)
      minLng = Math.min(minLng, marker.longitude)
      maxLng = Math.max(maxLng, marker.longitude)
    })

    const latDiff = maxLat - minLat
    const lngDiff = maxLng - minLng
    const maxDiff = Math.max(latDiff, lngDiff)

    // 根据距离设置缩放级别
    let scale = 14
    if (maxDiff > 0.01) {
      scale = 12
    } else if (maxDiff > 0.005) {
      scale = 13
    } else if (maxDiff > 0.002) {
      scale = 14
    } else {
      scale = 15
    }

    this.setData({
      mapCenter: {
        latitude: centerLat,
        longitude: centerLng
      },
      mapScale: scale
    })
  },

  // 返回上一页
  goBack() {
    wx.navigateBack({
      delta: 1
    })
  },

  // 联系客服
  contactSupport() {
    wx.showModal({
      title: '联系客服',
      content: '客服电话：400-123-4567\n工作时间：9:00-18:00',
      showCancel: false
    })
  },

  // 再次购买
  reorder() {
    const order = this.data.order
    wx.showModal({
      title: '再次购买',
      content: `确认再次购买${order.hospital}的药品吗？`,
      success: (res) => {
        if (res.confirm) {
          // 跳转到下单页面
          wx.switchTab({
            url: '/pages/order/order'
          })
          
          // 延迟设置搜索关键词
          setTimeout(() => {
            const pages = getCurrentPages()
            const orderPage = pages.find(page => page.route === 'pages/order/order')
            if (orderPage) {
              orderPage.setData({
                currentTab: 0,
                hospitalKeyword: order.hospital
              })
            }
          }, 500)
        }
      }
    })
  },

  // 删除订单
  deleteOrder() {
    const order = this.data.order
    wx.showModal({
      title: '确认删除',
      content: '确定要删除这个订单吗？删除后无法恢复。',
      success: (res) => {
        if (res.confirm) {
          const app = getApp()
          app.deleteOrder(order.id)
          
          wx.showToast({
            title: '订单已删除',
            icon: 'success',
            success: () => {
              setTimeout(() => {
                wx.navigateBack()
              }, 1500)
            }
          })
        }
      }
    }
  )
}
})