App({
  globalData: {
    items: ["血红蛋白", "尿素", "肌酐", "尿酸", "血钾", "血钙", "血磷", "β2微球蛋白", "体重"],
    records: []
  },

  onLaunch() {
    const defaults = ["血红蛋白", "尿素", "肌酐", "尿酸", "血钾", "血钙", "血磷", "β2微球蛋白", "体重"]
    const data = wx.getStorageSync("health_data")
    if (data) {
      // 合并：保留用户自定义项目，同时补上新增的默认项目
      const storedItems = data.items || []
      const merged = [...defaults]
      storedItems.forEach(item => {
        if (!merged.includes(item)) merged.push(item)
      })
      this.globalData.items = merged
      this.globalData.records = data.records || []
    } else {
      this.globalData.items = [...defaults]
    }
    this.saveData()
  },

  saveData() {
    wx.setStorageSync("health_data", {
      items: this.globalData.items,
      records: this.globalData.records
    })
  },

  addRecord(record) {
    this.globalData.records.push({
      id: Date.now().toString(36) + Math.random().toString(36).slice(2, 6),
      item: record.item,
      date: record.date,
      value: parseFloat(record.value)
    })
    this.saveData()
  },

  deleteRecord(id) {
    this.globalData.records = this.globalData.records.filter(r => r.id !== id)
    this.saveData()
  },

  addItem(name) {
    if (!this.globalData.items.includes(name)) {
      this.globalData.items.push(name)
      this.saveData()
    }
  },

  removeItem(name) {
    this.globalData.items = this.globalData.items.filter(i => i !== name)
    this.globalData.records = this.globalData.records.filter(r => r.item !== name)
    this.saveData()
  }
})