<template>
  <div id="teacher-line" class="container">
    <ve-line v-if="isShow" :width='width' :height='height' :judge-width="true" :data="chartData" :extend="extend"
      :settings="chartSettings" />
  </div>
</template>

<script>
import * as echarts from 'echarts';
// import { getTeacherSta } from "../../../../../api/ywts/shms/jy";
// import { multiScoreOther } from '@/api/pop'
import { getPassengerFlow } from '@/api/ywts/zyhj/yl'
export default {
  name: 'PersonLine',
  data() {
    return {
      isShow: true,
      title: {
        text: '客流量',
        textStyle: {
          color: '#cce9ff',
          fontSize: 15
        },
        padding: [5, 0, 0, 120]
      },
      height: '0',
      width: '0',
      chartSettings: {
        labelMap: { name: '日期' },
        metrics: [],
        dimension: ['date']
      },
      extend: {
        grid: {
          bottom: '0%',
          top: '20%',
          containLabel: true
        },
        yAxis: {
          axisLabel: {
            color: '#cce9ff'
          }
        },
        xAxis: {
          axisLabel: {
            color: '#cce9ff'
          }
        },
        legend: {
          // show: false,
          data: ['客流量'],
          // type: 'scroll',
          top: '0px',
          textStyle: {
            color: '#cce9ff',
            fontWeight: 'bold'
          }
        },
        series: {
          color: '#82b4dc',
          type: 'line',
          symbol: 'circle',
          symbolSize: 8,
          stack: 'Total',
          // top / left / right / bottom / inside / insideLeft / insideRight / insideTop / insideBottom / insideTopLeft / insideBottomLeft / insideTopRight / insideBottomRight
          label: {
            show: true,
            position: 'insideBottom'
          },
          areaStyle: {
            color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
              {
                offset: 0,
                color: '#0156b755'
              },
              {
                offset: 1,
                color: 'rgba(255,190,68,0.4)'
              }
            ])
          },
          emphasis: {
            focus: 'series'
          }
        },
        tooltip: {
          trigger: 'axis',
          position: function (pt) {
            return [pt[0], '10%']
          },
          formatter: function (params, ticket, callback) {
            return params[0].data[0] + '<br>人数：' + params[0].data[1]
          }
        }
      },
      chartData: {
        columns: [],
        rows: []
      }
    }
  },
  mounted() {
    this.height = document.getElementById('teacher-line').clientHeight - 10 + 'px'
    this.width = document.getElementById('teacher-line').clientWidth - 10 + 'px'
    const that = this
    window.addEventListener('resize', function () {
      if(!document.getElementById('teacher-line')) {
         return
      }
      that.reload()
    })
  },
  methods: {
    async reload() {
      if (!document.getElementById('teacher-line')) {
        return
      }
      this.isShow = false
      await this.$nextTick()
      this.height = document.getElementById('teacher-line').clientHeight - 10 + 'px'
      this.width = document.getElementById('teacher-line').clientWidth - 10 + 'px'
      this.isShow = true
    },
    // 获取数据
    fetchData(id) {
      console.log(1111111111111111111111111111)
      this.chartData.columns = ['date', 'num']
      this.chartSettings.metrics = ['num']
      this.chartSettings.labelMap = { 'date': '日期', 'num': '客流量' }
      getPassengerFlow({id}).then(res => {
        console.log('人员趋势',res.data.value )
        if (res.code === 200) {
          const data = res.data.value
          this.chartData.rows = data.map(item => {
            return {
              date: item.date,
              num: item.num
            }
          })
          this.myChart.setOption(this.extend, true)
        }
      })
    }
  }
}
</script>
<style lang="scss" scoped>
.container {
  position: relative;
  width: 100%;
  height: 100%;
}
</style>