<template>
  <div :class="className" :style="{height:height,width:width}"></div>
</template>

<script>
import echarts from 'echarts'
require('echarts/theme/macarons')
import { debounce } from './chart'

export default {
  props: {
    className: {
      type: String,
      default: 'chart'
    },
    width: {
      type: String,
      default: '100%'
    },
    height: {
      type: String,
      default: '350px'
    },
    chartData: {
      type: Array
    }
  },
  data() {
    return {
      chart: null
    }
  },
  mounted() {
    this.initChart()
    this.__resizeHanlder = debounce(() => {
      if (this.chart) {
        this.chart.resize()
      }
    }, 100)
    window.addEventListener('resize', this.__resizeHanlder)
  },
  beforeDestroy() {
    if (!this.chart) {
      return
    }
    window.removeEventListener('resize', this.__resizeHanlder)
    this.chart.dispose()
    this.chart = null
  },
  watch: {
    chartData: {
      deep: true,
      handler(val) {
        this.setOptions(val)
      }
    }
  },
  methods: {
    setOptions(datastr) {
      this.chart.setOption({
        title: {
          text: '分渠道',
          textStyle: {
            color: '#333',
            fontSize: 14
          },
          top: '0'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'shadow'
          }
        },
        dataZoom: [
          {
            type: 'slider',
            start: 60,
            end: 100
          },
          {
            type: 'inside'
          }
        ],
        xAxis: {
          data: datastr.map(item => {
            return item.time
          })
        },
        yAxis: {
          type: 'value'
        },
        legend: {
          data: ['PC端', '移动端', '合计']
        },
        toolbox: {
          show: true,
          feature: {
            // dataZoom: {
            //   yAxisIndex: 'none'
            // },
            dataView: { readOnly: false },
            magicType: {
              type: ['line', 'bar']
            },
            restore: {},
            saveAsImage: {}
          }
        },
        series: [
          {
            name: '移动端',
            type: 'bar',
            stack: '总量',
            barMaxWidth: 35,
            data: datastr.map(item => {
              return item.h5
            })
          },
          {
            name: 'PC端',
            type: 'bar',
            stack: '总量',
            data: datastr.map(item => {
              return item.pc
            })
          },
          {
            name: '合计',
            type: 'line',
            stack: '总量',
            symbol: 'circle',
            // areaStyle: {normal: {}},
            // label: {
            //     normal: {
            //         show: true,
            //         position: 'top',
            //         formatter: function (params) {
            //             for (var i = 0, l = option.xAxis.data.length; i < l; i++) {
            //                 if (option.xAxis.data[i] == params.name) {
            //                     // option.series[0].data[i];
            //                     var num = option.series[0].data[i]+option.series[1].data[i]+option.series[2].data[i];
            //                     return '合计：' + num;
            //                 }
            //             }
            //         }
            //
            //     }
            // },
            // itemStyle:{
            //   normal:{
            //     // color:"#dd4444",
            //     barBorderRadius:0,
            //     label:{
            //       show:true,
            //       position: 'top',
            //       formatter:function (params) {
            //         return params.val
            //       }
            //     }
            //   }
            // },
            data: datastr.map(item => {
              return item.num
            }),
            itemStyle: {
              normal: {
                label: {
                  show: true
                }
              }
            }
          }
        ]
      })
    },
    initChart() {
      this.chart = echarts.init(this.$el) // , 'macarons'
      var that = this
      setTimeout(function() {
        that.setOptions(that.chartData)
      }, 1)
    }
  }
}
</script>