const echarts = require('../../../components/ec-canvas/echarts.js')

Page({
  data: {
    fold1: true,
    fold2: true,

    // 用户信息
    pharmacistName: '',
    pharmacistAvatar: '',
    pharmacyName: '',

    // 项目列表
    projectList: [] as Array<{ projectId: number; projectName: string; projectDescription: string }>,
    currentProjectId: 0,
    currentProjectName: '',
    projectIndex: 0,

    // 待处理患者数
    pendingCount: 0,
    jumpPendingCount: 0,
    enrollPendingCount: 0,

    // 累计统计数据
    invitePatientCount: 0,
    jumpPatientCount: 0,
    enrollPatientCount: 0,

    // 累计适应症统计
    indicationStats: [] as Array<{
      indicationId: number
      indicationName: string
      invitePatientCount: number
      jumpPatientCount: number
      enrollPatientCount: number
    }>,

    // 日/月度统计数据
    dailyInvitePatientCount: 0,
    dailyJumpPatientCount: 0,
    dailyEnrollPatientCount: 0,

    // 日/月度适应症统计
    dailyIndicationStats: [] as Array<{
      indicationId: number
      indicationName: string
      invitePatientCount: number
      jumpPatientCount: number
      enrollPatientCount: number
    }>,

    // 图表数据
    chartData: [] as Array<{
      date: string
      invitePatientCount: number
      jumpPatientCount: number
      enrollPatientCount: number
    }>,

    // 日期范围 - 邀约患者统计卡片（单日）
    startDate: '',
    today: '',
    // 统计卡片显示用的月份（YYYY-MM）
    startMonth: '',

    // 日期范围 - 图表（日期范围）
    chartStartDate: '',
    chartEndDate: '',
    // 图表显示用的月份（YYYY-MM）
    chartStartMonth: '',
    chartEndMonth: '',

    // 统计类型: day-日统计, month-月统计
    statType: 'day',
  },

  ecDataTrendComponent1_1: null as any,

  async onLoad() {
    const app = getApp<IAppOption>()
    // 药店端页面，仅允许药店人员(4)访问
    app.waitLogin({ types: [4] }).then(() => {
      this.getUserInfo()
      this.getProjectList()
    })

    // 初始化日期
    const today = this.formatDate(new Date())
    const currentMonth = this.formatMonth(new Date())
    const defaultStartDate = this.formatDate(new Date(Date.now() - 30 * 24 * 60 * 60 * 1000))
    const defaultStartMonth = this.formatMonth(new Date(Date.now() - 365 * 24 * 60 * 60 * 1000))
    this.setData({
      today,
      // 邀约患者统计卡片（单日）- 默认为今天
      startDate: today,
      startMonth: currentMonth,
      // 图表（日期范围）- 默认为最近30天
      chartStartDate: defaultStartDate,
      chartEndDate: today,
      // 图表月份显示 - 默认为最近12个月
      chartStartMonth: defaultStartMonth,
      chartEndMonth: currentMonth,
    })
  },

  // 格式化日期
  formatDate(date: Date): string {
    const year = date.getFullYear()
    const month = String(date.getMonth() + 1).padStart(2, '0')
    const day = String(date.getDate()).padStart(2, '0')
    return `${year}-${month}-${day}`
  },

  // 格式化月份（YYYY-MM）
  formatMonth(date: Date): string {
    const year = date.getFullYear()
    const month = String(date.getMonth() + 1).padStart(2, '0')
    return `${year}-${month}`
  },

  // 获取用户信息
  getUserInfo() {
    wx.ajax({
      method: 'GET',
      url: '/app/pharmacist/pharmacist/profile',
    }).then((res: any) => {
      this.setData({
        pharmacistName: res.name,
        pharmacistAvatar: res.avatar,
        pharmacyName: res.pharmacyName,
      })
    })
  },

  // 获取项目列表
  getProjectList() {
    wx.ajax({
      method: 'GET',
      url: '/app/pharmacist/pharmacist/project-list',
    }).then((res: any) => {
      const projectList = res.list || []
      const currentProjectId = res.currentProjectId || projectList[0]?.projectId || 0
      const currentProject = projectList.find((item: any) => item.projectId === currentProjectId) || projectList[0]
      const projectIndex = projectList.findIndex((item: any) => item.projectId === currentProjectId)

      this.setData({
        projectList,
        currentProjectId,
        currentProjectName: currentProject?.projectName || '',
        projectIndex: projectIndex >= 0 ? projectIndex : 0,
      })

      // 获取其他数据
      this.getPendingCount()
      this.getTotalStatistics()
      this.getDailyStatistics()
      this.getPatientChart()
    })
  },

  // 切换项目
  onProjectChange(e: WechatMiniprogram.CustomEvent) {
    const index = e.detail.value
    const project = this.data.projectList[index]
    if (project && project.projectId !== this.data.currentProjectId) {
      // 先调用切换项目接口
      wx.ajax({
        method: 'POST',
        url: '/app/pharmacist/pharmacist/switch-project',
        data: {
          projectId: project.projectId,
        },
      })
        .then(() => {
          // 切换成功后更新页面数据
          this.setData({
            currentProjectId: project.projectId,
            currentProjectName: project.projectName,
            projectIndex: index,
          })
          // 重新加载数据
          this.getPendingCount()
          this.getTotalStatistics()
          this.getDailyStatistics()
          this.getPatientChart()
          wx.showToast({
            title: '切换成功',
            icon: 'success',
          })
        })
        .catch(() => {
          wx.showToast({
            title: '切换失败',
            icon: 'none',
          })
        })
    }
  },

  // 获取待处理患者数
  getPendingCount() {
    wx.ajax({
      method: 'GET',
      url: '/app/pharmacist/pharmacist/pending-count',
    })
      .then((res: any) => {
        this.setData({
          pendingCount: res.totalPendingCount || 0,
          jumpPendingCount: res.jumpPendingCount || 0,
          enrollPendingCount: res.enrollPendingCount || 0,
        })
      })
      .catch(() => {
        // 接口失败时使用默认值
        this.setData({
          pendingCount: 0,
          jumpPendingCount: 0,
          enrollPendingCount: 0,
        })
      })
  },

  // 获取累计统计数据看板
  getTotalStatistics() {
    wx.ajax({
      method: 'GET',
      url: '/app/pharmacist/pharmacist/statistics',
    }).then((res: any) => {
      this.setData({
        invitePatientCount: res.invitePatientCount || 0,
        jumpPatientCount: res.jumpPatientCount || 0,
        enrollPatientCount: res.enrollPatientCount || 0,
        indicationStats: res.indicationStats || [],
      })
    })
  },

  // 获取日/月度统计数据看板
  getDailyStatistics() {
    // 根据统计类型格式化日期
    const statDate =
      this.data.statType === 'month'
        ? this.data.startMonth // YYYY-MM
        : this.data.startDate // YYYY-MM-DD

    wx.ajax({
      method: 'GET',
      url: '/app/pharmacist/pharmacist/patient-statistics',
      data: {
        statDate,
        type: this.data.statType,
      },
    }).then((res: any) => {
      this.setData({
        dailyInvitePatientCount: res.invitePatientCount || 0,
        dailyJumpPatientCount: res.jumpPatientCount || 0,
        dailyEnrollPatientCount: res.enrollPatientCount || 0,
        dailyIndicationStats: res.indicationStats || [],
      })
    })
  },

  // 获取邀约患者统计图表（使用 chart 的日期范围）
  getPatientChart() {
    // 根据统计类型格式化日期
    const startDate =
      this.data.statType === 'month'
        ? this.data.chartStartMonth // YYYY-MM
        : this.data.chartStartDate // YYYY-MM-DD
    const endDate =
      this.data.statType === 'month'
        ? this.data.chartEndMonth // YYYY-MM
        : this.data.chartEndDate // YYYY-MM-DD

    wx.ajax({
      method: 'GET',
      url: '/app/pharmacist/pharmacist/patient-chart',
      data: {
        type: this.data.statType,
        startDate,
        endDate,
      },
    }).then((res: any) => {
      const list = res || []
      // 转换为图表需要的格式
      const chartData = list.map((item: any) => ({
        date: item.statDate,
        invitePatientCount: item.invitePatientCount || 0,
        jumpPatientCount: item.jumpPatientCount || 0,
        enrollPatientCount: item.enrollPatientCount || 0,
      }))
      this.setData({
        chartData,
      })
      this.initChartBar(chartData)
    })
  },

  // 切换统计类型
  switchStatType(e: WechatMiniprogram.CustomEvent) {
    const type = e.currentTarget.dataset.type
    const isMonth = type === 'month'

    // 根据统计类型重置日期范围
    let startDate = this.data.startDate
    let startMonth = this.data.startMonth
    let chartStartDate = this.data.chartStartDate
    let chartEndDate = this.data.chartEndDate
    let chartStartMonth = this.data.chartStartMonth
    let chartEndMonth = this.data.chartEndMonth

    if (isMonth) {
      // 切换到月统计，设置默认月份
      startMonth = this.formatMonth(new Date())
      startDate = `${startMonth}-01`
      // 图表月份范围为最近12个月
      chartEndMonth = this.formatMonth(new Date())
      chartStartMonth = this.formatMonth(new Date(Date.now() - 365 * 24 * 60 * 60 * 1000))
      chartEndDate = `${chartEndMonth}-01`
      chartStartDate = `${chartStartMonth}-01`
    } else {
      // 切换到日统计，设置默认日期为今天
      startDate = this.formatDate(new Date())
      startMonth = startDate.substring(0, 7)
      // 图表日期范围为最近30天
      chartEndDate = this.formatDate(new Date())
      chartStartDate = this.formatDate(new Date(Date.now() - 30 * 24 * 60 * 60 * 1000))
      chartEndMonth = chartEndDate.substring(0, 7)
      chartStartMonth = chartStartDate.substring(0, 7)
    }

    this.setData({
      statType: type,
      startDate,
      startMonth,
      chartStartDate,
      chartEndDate,
      chartStartMonth,
      chartEndMonth,
    })
    this.getDailyStatistics()
    this.getPatientChart()
  },

  // 日期选择变化
  onDateChange(e: WechatMiniprogram.CustomEvent) {
    const value = e.detail.value // YYYY-MM-DD 或 YYYY-MM

    // 月统计时，value 是 YYYY-MM 格式，需要补全为 YYYY-MM-DD
    const isMonth = value.length === 7
    const fullDate = isMonth ? `${value}-01` : value
    const monthValue = isMonth ? value : value.substring(0, 7)

    this.setData({
      startDate: fullDate,
      startMonth: monthValue,
    })
    // 重新加载日/月度统计数据
    this.getDailyStatistics()
  },

  // 切换到上一天/上月
  prevDate() {
    const isMonth = this.data.statType === 'month'
    let newDate: Date
    let startDate: string
    let startMonth: string

    if (isMonth) {
      // 月统计：切换到上个月
      const currentDate = new Date(this.data.startDate)
      newDate = new Date(currentDate.getFullYear(), currentDate.getMonth() - 1, 1)
      startDate = this.formatDate(newDate)
      startMonth = this.formatMonth(newDate)
    } else {
      // 日统计：切换到上一天
      const currentDate = new Date(this.data.startDate)
      newDate = new Date(currentDate.getTime() - 24 * 60 * 60 * 1000)
      startDate = this.formatDate(newDate)
      startMonth = startDate.substring(0, 7)
    }

    this.setData({ startDate, startMonth })
    // 重新加载日/月度统计数据
    this.getDailyStatistics()
  },

  // 切换到下一天/下月
  nextDate() {
    const isMonth = this.data.statType === 'month'
    const today = new Date()
    let newDate: Date
    let startDate: string
    let startMonth: string

    if (isMonth) {
      // 月统计：切换到下个月
      const currentDate = new Date(this.data.startDate)
      newDate = new Date(currentDate.getFullYear(), currentDate.getMonth() + 1, 1)

      // 最大月份不能大于当前月份
      const currentMonth = new Date(today.getFullYear(), today.getMonth(), 1)
      if (newDate > currentMonth) {
        wx.showToast({
          title: '不能选择未来月份',
          icon: 'none',
        })
        return
      }

      startDate = this.formatDate(newDate)
      startMonth = this.formatMonth(newDate)
    } else {
      // 日统计：切换到下一天
      const currentDate = new Date(this.data.startDate)
      newDate = new Date(currentDate.getTime() + 24 * 60 * 60 * 1000)

      // 最大日期不能大于当前日期
      if (newDate > today) {
        wx.showToast({
          title: '不能选择未来日期',
          icon: 'none',
        })
        return
      }

      startDate = this.formatDate(newDate)
      startMonth = startDate.substring(0, 7)
    }

    this.setData({ startDate, startMonth })
    // 重新加载日/月度统计数据
    this.getDailyStatistics()
  },

  // 图表日期选择变化（开始日期）
  onChartStartDateChange(e: WechatMiniprogram.CustomEvent) {
    const value = e.detail.value // YYYY-MM-DD 或 YYYY-MM
    const chartEndDate = this.data.chartEndDate

    // 月统计时，value 是 YYYY-MM 格式，需要补全为 YYYY-MM-DD
    const isMonth = value.length === 7
    const fullDate = isMonth ? `${value}-01` : value
    const monthValue = isMonth ? value : value.substring(0, 7)

    // 验证日期范围
    if (chartEndDate && fullDate > chartEndDate) {
      wx.showToast({
        title: '开始时间不能大于结束时间',
        icon: 'none',
      })
      return
    }

    this.setData({
      chartStartDate: fullDate,
      chartStartMonth: monthValue,
    })
    this.getPatientChart()
  },

  // 图表日期选择变化（结束日期）
  onChartEndDateChange(e: WechatMiniprogram.CustomEvent) {
    const value = e.detail.value // YYYY-MM-DD 或 YYYY-MM
    const chartStartDate = this.data.chartStartDate

    // 月统计时，value 是 YYYY-MM 格式，需要补全为 YYYY-MM-DD
    const isMonth = value.length === 7
    const fullDate = isMonth ? `${value}-01` : value
    const monthValue = isMonth ? value : value.substring(0, 7)

    // 验证日期范围
    if (chartStartDate && fullDate < chartStartDate) {
      wx.showToast({
        title: '结束时间不能小于开始时间',
        icon: 'none',
      })
      return
    }

    this.setData({
      chartEndDate: fullDate,
      chartEndMonth: monthValue,
    })
    this.getPatientChart()
  },

  initChartBar(list: any[]) {
    return new Promise((reslove) => {
      this.ecDataTrendComponent1_1 = this.selectComponent('#chart1_1')
      this.ecDataTrendComponent1_1.init((canvas, width, height, dpr) => {
        const chart = echarts.init(canvas, null, {
          width,
          height,
          devicePixelRatio: dpr,
        })
        canvas.setChart(chart)
        const x: string[] = []
        const y1: number[] = []
        const y2: number[] = []
        const y3: number[] = []
        list.forEach((item) => {
          x.push(item.date)
          y1.push(item.enrollPatientCount)
          y2.push(item.jumpPatientCount)
          y3.push(item.invitePatientCount)
        })

        const option = {
          tooltip: {
            trigger: 'axis',
            axisPointer: {
              type: 'shadow',
            },
            formatter (params) {
              let result = `${params[0].axisValue  }\n`
              params.forEach((item, index) => {
                result += `${item.marker  } ${  item.seriesName  }: ${  item.value  }`
                if (index < params.length - 1) {
                  result += '\n'
                }
              })
              return result
            },
          },
          legend: {
            top: 0,
            right: 0,
            itemWidth: 8,
            itemHeight: 8,
            icon: 'rect',
            lineStyle: {
              width: '0',
            },
            textStyle: {
              color: '#B5B8BB',
              fontSize: '12',
            },
          },
          grid: {
            top: '10%',
            left: '3%',
            right: '4%',
            bottom: '0',
            containLabel: true,
          },
          xAxis: [
            {
              type: 'category',
              axisTick: {
                show: false,
              },
              axisLabel: {
                fontSize: 10,
                color: '#B5B8BB',
              },
              axisLine: {
                show: false,
              },
              data: x,
            },
          ],
          yAxis: [
            {
              type: 'value',
              minInterval: 1,
              splitLine: {
                lineStyle: {
                  type: 'dashed',
                },
              },
              axisLabel: {
                fontSize: 10,
                color: '#B5B8BB',
                formatter(value) {
                  return Math.abs(value)
                },
              },
            },
          ],
          series: [
            {
              name: '入组患者数',
              type: 'bar',
              stack: 'a',
              color: '#FF5722',
              barWidth: 12,
              data: y1,
            },
            {
              name: '跳转患者数',
              type: 'bar',
              stack: 'a',
              color: '#FF8A4C',
              barWidth: 12,
              data: y2,
            },
            {
              name: '邀约患者数',
              type: 'bar',
              stack: 'a',
              width: 4,
              color: '#FFA64D',
              barWidth: 12,
              data: y3,
            },
          ],
          dataZoom: {
            type: 'inside',
            startValue: x.length - 6,
            endValue: x.length - 1,
            filterMode: 'none',
          },
        }

        chart.setOption(option)

        reslove(chart)
        return chart
      })
    })
  },

  handleInvite() {
    wx.navigateTo({
      url: '/doctor/pages/invite/index',
    })
  },

  handleStat() {
    const { chartStartDate, chartEndDate, statType } = this.data
    wx.navigateTo({
      url: `/doctor/pages/stat/index?startDate=${chartStartDate}&endDate=${chartEndDate}&type=${statType}`,
    })
  },

  handleFold(e) {
    const { key } = e.currentTarget.dataset
    this.setData({
      [key]: !this.data[key],
    })
  },
})