// order.js
const mockData = require('../../utils/mockData.js')

Page({
  data: {
    currentTab: 0,
    hospitalKeyword: '',
    medicineKeyword: '',
    hospitals: mockData.hospitals,
    filteredHospitals: mockData.hospitals,
    priceResults: [],
    hotMedicines: [
      { name: '阿莫西林胶囊', minPrice: 24.8 },
      { name: '布洛芬缓释胶囊', minPrice: 17.5 },
      { name: '氯雷他定片', minPrice: 30.5 },
      { name: '奥美拉唑肠溶胶囊', minPrice: 45.0 }
    ],
    showCaseModal: false,
    showMedicineModal: false,
    selectedHospital: null,
    selectedCase: null,
    selectedMedicines: [],
    totalPrice: 0
  },

  onLoad() {
    console.log('下单页面加载完成')
  },

  // 切换选项卡
  switchTab(e) {
    const tab = parseInt(e.currentTarget.dataset.tab)
    this.setData({
      currentTab: tab
    })
  },

  // 医院搜索
  onHospitalSearch(e) {
    const keyword = e.detail.value
    const filteredHospitals = this.data.hospitals.filter(hospital => 
      hospital.name.includes(keyword) || hospital.address.includes(keyword)
    )
    this.setData({
      hospitalKeyword: keyword,
      filteredHospitals: filteredHospitals
    })
  },

  // 药品搜索
  onMedicineSearch(e) {
    const keyword = e.detail.value
    this.setData({
      medicineKeyword: keyword
    })

    if (keyword && mockData.medicinePrices[keyword]) {
      this.setData({
        priceResults: mockData.medicinePrices[keyword]
      })
    } else {
      this.setData({
        priceResults: []
      })
    }
  },

  // 选择医院
  selectHospital(e) {
    const hospital = e.currentTarget.dataset.hospital
    this.setData({
      selectedHospital: hospital,
      showCaseModal: true
    })
  },

  // 关闭病例单模态框
  closeCaseModal() {
    this.setData({
      showCaseModal: false,
      selectedHospital: null
    })
  },

  // 选择病例单
  selectCase(e) {
    const selectedCase = e.currentTarget.dataset.case
    // 初始化药品数量
    const medicines = selectedCase.medicines.map(medicine => ({
      ...medicine,
      quantity: 0
    }))
    
    this.setData({
      selectedCase: { ...selectedCase, medicines },
      showCaseModal: false,
      showMedicineModal: true
    })
  },

  // 关闭药品模态框
  closeMedicineModal() {
    this.setData({
      showMedicineModal: false,
      selectedCase: null,
      selectedMedicines: [],
      totalPrice: 0
    })
  },

  // 增加药品数量
  increaseQuantity(e) {
    const medicine = e.currentTarget.dataset.medicine
    const medicines = this.data.selectedCase.medicines.map(item => {
      if (item.id === medicine.id) {
        const quantity = (item.quantity || 0) + 1
        return { ...item, quantity }
      }
      return item
    })

    const totalPrice = medicines.reduce((total, item) => total + (item.price * (item.quantity || 0)), 0)
    
    this.setData({
      'selectedCase.medicines': medicines,
      totalPrice: totalPrice
    })
  },

  // 减少药品数量
  decreaseQuantity(e) {
    const medicine = e.currentTarget.dataset.medicine
    const medicines = this.data.selectedCase.medicines.map(item => {
      if (item.id === medicine.id && (item.quantity || 0) > 0) {
        const quantity = item.quantity - 1
        return { ...item, quantity }
      }
      return item
    })

    const totalPrice = medicines.reduce((total, item) => total + (item.price * (item.quantity || 0)), 0)
    
    this.setData({
      'selectedCase.medicines': medicines,
      totalPrice: totalPrice
    })
  },

  // 确认下单
  confirmOrder() {
    const selectedMedicines = this.data.selectedCase.medicines
      .filter(item => item.quantity > 0)
      .map(item => ({
        name: item.name,
        price: item.price,
        quantity: item.quantity
      }))

    if (selectedMedicines.length === 0) {
      wx.showToast({
        title: '请选择至少一种药品',
        icon: 'none'
      })
      return
    }

    // 模拟下单成功
    wx.showModal({
      title: '下单成功',
      content: `订单总价：¥${this.data.totalPrice}\n药品将尽快通过无人机配送`,
      showCancel: false,
      success: () => {
        this.closeMedicineModal()
        // 可以跳转到订单详情页面
      }
    })
  },

  // 选择热门药品
  selectHotMedicine(e) {
    const medicineName = e.currentTarget.dataset.medicine
    this.setData({
      medicineKeyword: medicineName
    })
    
    if (mockData.medicinePrices[medicineName]) {
      this.setData({
        priceResults: mockData.medicinePrices[medicineName]
      })
    }
  },

  // 通过价格选择医院
  selectByPrice(e) {
    const priceInfo = e.currentTarget.dataset.price
    wx.showModal({
      title: '确认下单',
      content: `确认在${priceInfo.hospital}购买${this.data.medicineKeyword}，价格：¥${priceInfo.price}`,
      success: (res) => {
        if (res.confirm) {
          wx.showToast({
            title: '下单成功',
            icon: 'success'
          })
        }
      }
    })
  }
})