
<template>
  <el-row style="background:#fff;margin-top:30px;">
    <el-col :xs="24" :sm="24" :lg="24">
      <el-card shadow="always" class="common-card-container common-card-container-body-no-padding">
        <div slot="header">
          <span class="card-title">一周充放曲线</span>
        </div>
        <div style="height: 310px" id="weekChart"></div>
      </el-card>
    </el-col>
  </el-row>
</template>

<script>
import * as echarts from 'echarts'
import resize from '@/mixins/ems/resize'

export default {
  mixins: [resize],
  data() {
    return {
      chart: null
    }
  },
  mounted() {
    this.$nextTick(() => {
      this.initChart()
    })
  },
  beforeDestroy() {
    if (!this.chart) {
      return
    }
    this.chart.dispose()
    this.chart = null
  },
  methods: {
    initChart() {
      this.chart = echarts.init(document.querySelector('#weekChart'))
    },
    showLoading(){
      this.chart && this.chart.showLoading()
    },
    setOption(data,unit) {
      const source = [['日期','充电量','放电量']]
      data.forEach(item=>{
        source.push([item.ammeterDate, item.chargedCap,item.disChargedCap])
      })
      this.chart.setOption({
        color:['#FFBD00','#3C81FF','#05AEA3'],
        tooltip: {
          trigger: 'axis',
          axisPointer: { // 坐标轴指示器，坐标轴触发有效
            type: 'shadow' // 默认为直线，可选为：'line' | 'shadow'
          }
        },
        legend: {
          left: 'center',
          bottom: '10',
        },
        xAxis: {
          type: 'category',
          name:unit,
          nameLocation:'center'
        },
        yAxis: [{
          type: 'value',
          name:'充电量/放电量kWh',
          axisLine: {
            lineStyle:{
              color: '#333333',
            },
            onZero:false
          }
        }],
        dataset:{
          source
        },
        series: [
          {
            yAxisIndex:0,
            type: 'line',
          },
          {
            yAxisIndex:0,
            type: 'line',
          },
        ]
      })
      this.chart.hideLoading()
    }
  }
}

</script>

