<template>
  <div class="app-container">
    <div class="search-con">
      <div class="title">查询条件</div>
      <el-form :model="queryParams" ref="queryRef" :inline="true" :rules="rules" label-width="100px">
        <el-form-item label="信用卡" prop="bankCardLendId">
          <el-select v-model="queryParams.id" placeholder="信用卡" @change="handleCreditChange" clearable>
            <el-option v-for="creditCard in creditCardList" :key="creditCard.id" :label="creditCard.nameCode" :value="creditCard.id" />
          </el-select>
        </el-form-item>
        <el-form-item label="" prop="type">
          <el-select v-model="queryParams.type" @change="handleTimeChange" placeholder="请选择日期">
            <el-option v-for="item in dates" :key="item.value" :label="item.label" :value="item.value" />
          </el-select>
        </el-form-item>
        <el-form-item label="" prop="time" v-if="queryParams.type === 1">
          <el-date-picker
            v-model="queryParams.time"
            type="daterange"
            range-separator="~"
            start-placeholder="开始时间"
            end-placeholder="结束时间"
            format="YYYY-MM-DD"
            @calendar-change="calendarChange"
          />
        </el-form-item>
        <el-form-item label="" prop="time" v-if="queryParams.type === 2">
          <el-date-picker
            v-model="queryParams.time"
            type="monthrange"
            range-separator="~"
            format="YYYY-MM"
            start-placeholder="开始时间"
            end-placeholder="结束时间"
            @calendar-change="calendarChange"
          />
        </el-form-item>
        <el-form-item label="" prop="time" v-if="queryParams.type === 3">
          <yearPicker
            v-model="queryParams.time"
            ref="statisticPicker"
            labelText="选择年份"
            :initYear="dateValue"
            :showYear="showYearValue"
            :maxLength="20"
            sp="~"
            @updateTimeRange="updateStatisticYear"
          />
        </el-form-item>
      </el-form>
      <div class="search-btn-con">
        <el-button type="primary" icon="Search" @click="handleQuery">搜索</el-button>
        <el-button type="info" icon="Refresh" @click="resetQuery">重置</el-button>
      </div>
    </div>
    <div class="main-con">
      <div class="summary-con">
        <div class="center-con">
          <div class="icon-box">
            <el-icon :size="40" color="#409EFF"><List /></el-icon>
          </div>
          <div class="item-wrap">
            <div class="title">已结清分期笔数</div>
            <div class="num">{{ historyObj.clearedCount }}</div>
          </div>
        </div>
        <div class="center-con">
          <div class="icon-box">
            <el-icon :size="40" color="#67C23A"><Money /></el-icon>
          </div>
          <div class="item-wrap">
            <div class="title">已结清分期（本息）</div>
            <div class="num">{{ historyObj.clearedTotal }}</div>
          </div>
        </div>
        <div class="center-con">
          <div class="icon-box">
            <el-icon :size="40" color="#E6A23C"><Coin /></el-icon>
          </div>
          <div class="item-wrap">
            <div class="title">已结清分期（本金）</div>
            <div class="num">{{ historyObj.clearedPrincipal }}</div>
          </div>
        </div>
        <div class="center-con">
          <div class="icon-box">
            <el-icon :size="40" color="#F56C6C"><TrendCharts /></el-icon>
          </div>
          <div class="item-wrap">
            <div class="title">已结清总利息</div>
            <div class="num">{{ historyObj.totalInterest }}</div>
          </div>
        </div>
      </div>
      <div class="title-con">
        <div class="title">已结清信用卡分期统计</div>
        <div class="operate-btn-con">
          <el-radio-group v-model="radioVal" @change="handleRadioChange">
            <el-radio-button label="柱状图" />
            <el-radio-button label="折线图" />
            <el-radio-button label="表格" />
          </el-radio-group>
        </div>
      </div>
      <div class="content-con">
        <div v-show="radioVal === '柱状图'" class="chart" id="chartBar"></div>
        <div v-show="radioVal === '折线图'" class="chart" id="chartLine"></div>
        <el-table v-show="radioVal === '表格'" v-loading="loading" :data="historyObj.tableHistoryList">
          <el-table-column label="序号" width="50" type="index" align="center">
            <template #default="scope">
              <span>{{ scope.$index + 1 }}</span>
            </template>
          </el-table-column>
          <el-table-column label="分期日期" align="center" prop="time" />
          <el-table-column label="分期金额（本息）" align="center" prop="value" />
          <el-table-column prop="detail" label="分期金额明细" width="900" v-if="queryParams.type === 2">
            <template #default="scope">
              <span v-html="formatMultiLineData(scope.row.detail)"></span>
            </template>
          </el-table-column>
        </el-table>
      </div>
    </div>
  </div>
</template>

<script setup name="CreditAnalysis">
import dayjs from 'dayjs'
import * as echarts from 'echarts'
import { ElMessage } from 'element-plus'
import { List, Money, Coin, TrendCharts, Histogram } from '@element-plus/icons-vue'
import yearPicker from '@/components/YearPicker/index.vue'
import { getInstallmentSettledAnalysis } from '@/api/invest/statisticAnalysis'
import { listBankcardLend } from '@/api/invest/bankcardlend'
const { proxy } = getCurrentInstance()
const dateValue = ref({ startYear: 2000, endYear: new Date().getFullYear() + 5 })
const showYearValue = ref({ startShowYear: '', endShowYear: '' })
const updateStatisticYear = (startYear, endYear) => {
  queryParams.value.time = [new Date(startYear, 0, 1), new Date(endYear, 0, 1)]

  if (endYear - startYear > 20) {
    ElMessage.warning('时间跨度不能大于10年，默认选择开始日期的20年')
    queryParams.value.time = [new Date(startYear, 0, 1), new Date(startYear + 20, 0, 1)]
  }
}

const dates = [
  { value: 2, label: '月' },
  { value: 3, label: '年' }
]

const loading = ref(true)
const total = ref(0)
const radioVal = ref('柱状图')

const creditCardList = ref([])
const dateValidate = (rules, value, callback) => {
  const dateType = rules.dateType || 'days'
  const num = rules.num || 31
  const dateString = rules.dateString || '天'
  const message = rules.message || `时间跨度不能超过${num}${dateString}`

  if (value && value.length === 2) {
    const start = value[0]
    const end = value[1]
    if (dayjs(end).diff(dayjs(start), dateType) > num) {
      queryParams.value.time = [start, dayjs(start).add(35, 'months')]
      ElMessage.warning(message)
    }
  }
}

const data = reactive({
  queryParams: {
    type: 2,
    time: null,
    dataType: '2',
    id: null,
    state: null
  },
  queryCreditCardParams: {
    pageNum: 1,
    type: '2',
    pageSize: 1000
  },
  rules: {
    time: [{ validator: dateValidate, dateType: 'months', num: 239, dateRange: '月', message: '时间跨度不能大于20年，默认选择开始日期的240个月' }]
  }
})

const { queryParams, queryCreditCardParams, rules } = toRefs(data)
const handleCreditChange = (id) => {
  queryParams.value.id = id
  getList()
}

const today = new Date()
const end = today.getFullYear() + '-' + ('0' + (today.getMonth() + 1)).slice(-2)
const start = dayjs(end).add(-239, 'months')
queryParams.value.time = [start, end]
/** 查询信用卡卡管理列表 */
function getCreditCardList() {
  listBankcardLend(queryCreditCardParams.value).then((response) => {
    creditCardList.value = response.rows
  })
}
function formatMultiLineData(data) {
  if (data != null) {
    return data.replace(/<br\/>/g, '<br/>')
  }
}
const handleTimeChange = (type) => {
  queryParams.value.time = null
  if (type === 2) {
    const today = new Date()
    const end = today.getFullYear() + '-' + ('0' + (today.getMonth() + 1)).slice(-2)
    const start = dayjs(end).add(-239, 'months')
    queryParams.value.time = [start, end]
  } else if (type === 3) {
    const today = new Date()
    const endYear = today.getFullYear()
    queryParams.value.time = [new Date(endYear - 20, 0, 1), new Date(endYear, 0, 1)]
    showYearValue.value = { startShowYear: endYear - 20, endShowYear: endYear }
  }
  getList()
}

const firstChooseDate = ref('')
const calendarChange = (val) => {
  firstChooseDate.value = val[0].getTime()
  if (val[1]) firstChooseDate.value = ''
}

const historyObj = ref({
  clearedCount: '',
  clearedPrincipal: '',
  clearedTotal: '',
  totalInterest: '',
  historyList: []
})

const chartData = ref({
  name: [],
  value1: []
})

function getList() {
  loading.value = true
  chartData.value = { name: [], value1: [] }
  const { type, time, dataType, id } = queryParams.value
  let formatValue = 'YYYY-MM-DD'
  if (type === 1) {
    formatValue = 'YYYY-MM-DD'
  } else if (type === 2) {
    formatValue = 'YYYY-MM'
  } else {
    formatValue = 'YYYY'
  }
  const params = {
    type,
    startTime: time && time.length > 0 ? dayjs(time[0]).format(formatValue) : '',
    endTime: time && time.length > 0 ? dayjs(time[1]).format(formatValue) : '',
    id,
    dataType
  }
  getInstallmentSettledAnalysis(params).then((response) => {
    loading.value = false
    historyObj.value = { ...response.data }
    historyObj.value.historyList.map((item) => {
      return {
        name: item.time,
        value: item.value
      }
    })
    response.data.historyList.map((item) => {
      chartData.value.name.push(item.time)
      chartData.value.value1.push(item.value)
    })
    handleRadioChange(currentType.value)
  })
}

function handleQuery() {
  getList()
}

function resetQuery() {
  proxy.resetForm('queryRef')
  queryParams.value.id = null
  queryParams.value.dataType = '2'
  total.value = 0
  handleQuery()
}

const drawBar = (data) => {
  if (document.getElementById('chartBar') === null) {
    return
  }
  echarts.dispose(document.getElementById('chartBar'))
  const myChart = echarts.init(document.getElementById('chartBar'))

  const option = {
    legend: {
      // 图示例样式
      show: true,
      top: 50,
      right: 50,
      itemGap: 20
    },
    tooltip: {
      trigger: 'axis',
      axisPointer: {
        type: 'shadow'
      },
      formatter: function (params) {
        return params[0].name + '<br>' + '分期金额（本息）：' + params[0].value + '元'
      }
    },
    grid: {
      left: '5%',
      right: '5%',
      bottom: '5%',
      containLabel: true
    },
    xAxis: [
      {
        type: 'category',
        data: data.name,
        axisTick: {
          alignWithLabel: true // 刻度线是否与标签对齐，默认false
        },
        // 设置 X 轴线条粗细
        axisLine: {
          lineStyle: {
            width: 1, // 根据需求调整数值大小，单位是像素
            color: '#999'
          }
        }
      }
    ],
    yAxis: [
      {
        type: 'value',
        axisTick: {
          show: false // 默认为true，如果要隐藏，则改为 false
        },
        axisLine: {
          show: true,
          lineStyle: {
            width: 1,
            color: '#999'
          }
        }
      }
    ],
    series: [
      {
        data: data.value1,
        type: 'bar',
        barWidth: 20, // 根据需求调整数值大小，单位是像素
        itemStyle: {
          color: '#2283cf'
        }
      }
    ],
    // 添加点击事件的处理函数
    emphasis: {
      itemStyle: {
        color: '#2283cf',
        barWidth: 20 // 根据需求调整数值大小，单位是像素
      },
      barWidth: 24 // 根据需求调整数值大小，单位是像素
    }
  }

  myChart.setOption(option)
}

const drawLine = (data) => {
  if (document.getElementById('chartLine') === null) {
    return
  }
  echarts.dispose(document.getElementById('chartLine'))
  const myChart = echarts.init(document.getElementById('chartLine'))

  const option = {
    grid: {
      left: '5%',
      right: '5%',
      bottom: '5%',
      containLabel: true
    },
    tooltip: {
      trigger: 'axis',
      axisPointer: {
        type: 'shadow'
      },
      formatter: function (params) {
        return params[0].name + '<br>' + '分期金额（本息）：' + params[0].value + '元'
      }
    },
    xAxis: {
      type: 'category',
      data: data.name,
      axisTick: {
        alignWithLabel: true
      },
      axisLine: {
        lineStyle: {
          width: 1,
          color: '#999'
        }
      }
    },
    yAxis: {
      type: 'value',
      axisTick: {
        show: false
      },
      axisLine: {
        show: true,
        lineStyle: {
          width: 1,
          color: '#999'
        }
      }
    },
    series: [
      {
        data: data.value1,
        type: 'line',
        lineStyle: {
          color: '#4181c9'
        },
        itemStyle: {
          color: '#4181c9'
        },
        smooth: true,
        symbol: 'emptyCircle',
        areaStyle: {
          color: new echarts.graphic.LinearGradient(
            0,
            0,
            0,
            1,
            [
              {
                offset: 0,
                color: 'rgba(65,129,201, 0.70)'
              },
              {
                offset: 1,
                color: 'rgba(65,129,201, 0.10)'
              }
            ],
            false
          ),
          shadowColor: 'rgba(65,129,201, 0.10)',
          shadowBlur: 10
        }
      }
    ]
  }

  myChart.setOption(option)
}

const currentType = ref('柱状图')
const handleRadioChange = (type) => {
  currentType.value = type
  switch (type) {
    case '柱状图':
      drawBar(chartData.value)
      break
    case '折线图':
      drawLine(chartData.value)
      break
    default:
      break
  }
}
getCreditCardList()
getList()
</script>

<style lang="scss" scoped>
.main-con {
  height: calc(100vh - 240px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.summary-con {
  gap: 0.14rem !important;
  justify-content: flex-start !important;
  flex-wrap: wrap;
  margin-bottom: 0.08rem !important;
  flex-shrink: 0;

  .center-con {
    flex: 1 1 calc(25% - 0.105rem);
    min-width: 2.6rem;
    max-width: calc(25% - 0.105rem);
    list-style: none !important;

    &::before,
    &::after {
      display: none !important;
      content: none !important;
    }
  }

  .item-wrap {
    list-style: none !important;

    &::before,
    &::after {
      display: none !important;
      content: none !important;
    }

    .num,
    .title {
      &::before,
      &::after {
        display: none !important;
        content: none !important;
      }
    }
  }

  .icon-box {
    &::before,
    &::after {
      display: none !important;
      content: none !important;
    }
  }
}

.title-con {
  margin-top: 0 !important;
  padding-top: 0.08rem !important;
  flex-shrink: 0;
}

.content-con {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-height: 0;

  .chart {
    flex: 1;
    min-height: 0;
    width: 100%;
  }

  .el-table {
    flex: 1;
  }
}

@media (max-width: 1600px) {
  .summary-con {
    .center-con {
      flex: 1 1 calc(33.333% - 0.093rem);
      max-width: calc(33.333% - 0.093rem);
    }
  }
}

@media (max-width: 1200px) {
  .summary-con {
    .center-con {
      flex: 1 1 calc(50% - 0.07rem);
      max-width: calc(50% - 0.07rem);
    }
  }
}

@media (max-width: 768px) {
  .summary-con {
    .center-con {
      flex: 1 1 100%;
      max-width: 100%;
    }
  }
}
</style>
