<template>
  <div id="power-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';
export default {
  name: 'PowerLine',
  data() {
    return {
      isShow: true,
      title: {
        text: '机动力量',
        textStyle: {
          color: '#cce9ff',
          fontSize: 15
        },
        padding: [5, 0, 0, 120]
      },
      height: '0',
      width: '0',
      chartSettings: {
        labelMap: { time: '时间' },
        metrics: [],
        dimension: ['time']
      },
      extend: {
        grid: {
          bottom: '2%',
          top: '10%',
          containLabel: true
        },
        yAxis: {
          axisLabel: {
            color: '#cce9ff'
          }
        },
        xAxis: {
          axisLabel: {
            color: '#cce9ff'
          }
        },
        legend: {
          show: false,
          // type: 'scroll',
          top: '0px',
          textStyle: {
            color: '#cce9ff',
            fontWeight: 'bold'
          }
        },
        series: {
          color: '#82b4dc',
          type: 'line',
          symbol: 'circle',
          symbolSize: 8,
          stack: 'Total',
          areaStyle: {
            color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
              {
                offset: 0.2,
                color: 'rgba(255,190,68,0.4)'
              },
              {
                offset: 0.5,
                color: '#0156b755'
              }
            ])
          },
          emphasis: {
            focus: 'series'
          }
        },
        tooltip: {
          trigger: 'axis',
          position: function(pt) {
            return [pt[0], '10%']
          },
          formatter: function(params, ticket, callback) {
            return params[0].data[0] + '点<br>机动力量：' + params[0].data[1]
          }
        }
      },
      chartData: {
        columns: [],
        rows: []
      }
    }
  },
  mounted() {
    this.height = document.getElementById('power-line').clientHeight - 10 + 'px'
    this.width = document.getElementById('power-line').clientWidth - 10 + 'px'
    const that = this
    window.addEventListener('resize', function() {
      if(!document.getElementById('power-line')) {
        return
      }
      that.reload()
    })
    this.fetchData()
  },
  methods: {
    async reload() {
      this.isShow = false
      await this.$nextTick()
      this.height = document.getElementById('power-line').clientHeight - 10 + 'px'
      this.width = document.getElementById('power-line').clientWidth - 10 + 'px'
      this.isShow = true
    },
    // 获取数据
    fetchData() {
      // statisticsMonth().then(response => {
      //   if(response.data.length>0){
      //     const arr = response.data.map((item)=> {
      //       const result = {time: item.time}
      //       for (let i = 0; i < item.data.length; i++) {
      //         result[item.data[i].name] = item.data[i].count
      //       }
      //       return result
      //     })
      //     const area = response.data[0].data.map(item=>item.name)
      //     this.chartData.columns = ['time', ...area]
      //     this.chartSettings.metrics = area
      //     this.chartSettings.labelMap = {'time':'月份'}
      //     this.chartData.rows = arr
      //   }
      // })
      this.chartData.columns = ['time', '机动力量']
      this.chartSettings.metrics = ['机动力量']
      this.chartSettings.labelMap = { 'time': '月份' }
      // 模拟数据
      this.chartData.rows = [
        { time: '0', '机动力量': '0.9' },
        { time: '1', '机动力量': '0.9' },
        { time: '2', '机动力量': '0.8' },
        { time: '3', '机动力量': '0.75' },
        { time: '4', '机动力量': '0.88' },
        { time: '5', '机动力量': '0.78' },
        { time: '6', '机动力量': '0.86' },
        { time: '7', '机动力量': '0.82' },
        { time: '8', '机动力量': '0.94' },
        { time: '9', '机动力量': '0.96' },
        { time: '10', '机动力量': '0.94' },
        { time: '11', '机动力量': '0.92' },
        { time: '12', '机动力量': '0.95' },
        { time: '13', '机动力量': '0.87' },
        { time: '14', '机动力量': '0.92' },
        { time: '15', '机动力量': '0.91' },
        { time: '16', '机动力量': '0.9' },
        { time: '17', '机动力量': '0.9' },
        { time: '18', '机动力量': '0.92' },
        { time: '19', '机动力量': '0.85' },
        { time: '20', '机动力量': '0.88' },
        { time: '21', '机动力量': '0.86' },
        { time: '22', '机动力量': '0.87' },
        { time: '23', '机动力量': '0.89' }
      ]
    }
  }
}
</script>
<style lang="scss" scoped>
  .container{
    position:relative;
    width: 100%;
    height:100%;
  }
</style>