<template>
    <div :class="className" :id="id" :style="{height:height,width:width}"></div>
</template>
<script>
    // 引入 ECharts 主模块
    const echarts = require('echarts/lib/echarts');
    // 引入柱状图
    require('echarts/lib/chart/bar');
    // 引入提示框和标题组件
    require('echarts/lib/component/tooltip');
    export default {
      name: 'barPercent',
      props: {
        className: {
          type: String,
          default: 'bar-percent-chart'
        },
        id: {
          type: String,
          default: 'bar-percent-chart'
        },
        width: {
          type: String,
          default: '100px'
        },
        height: {
          type: String,
          default: '80px'
        },
        dataNum: {
          type: Number,
          default: 0
        }
      },
      data() {
        return {
          chart: null
        };
      },
      watch: {
        dataNum() {
          this.setOptions()
        }
      },
      mounted() {
        this.initBar();
      },
      methods: {
        initBar() {
          this.chart = echarts.init(document.getElementById(this.id));
        },
        setOptions() {
          this.chart.setOption({
            tooltip: {
              show: true,
              formatter(params) {
                return '已完成' + params.value + '篇<br/>目标90篇<br/>完成进度' + Math.round((params.value / 90) * 100) + '%'
              }
            },
            grid: {
              left: 0,
              right: 0,
              bottom: 0,
              top: 0,
              containLabel: false
            },
            xAxis: [{
              type: 'category',
              data: ['文章完成比例']
            }],
            yAxis: [{
              type: 'value',
              data: [],
              show: false
            }],
            animationDelay: 1000,
            series: [{
              type: 'bar',
              name: '初诊',
              itemStyle: {
                normal: {
                  color: '#e5e5e5'
                }
              },
              silent: true,
              barGap: '-100%', // Make series be overlap
              data: [150]
            }, {
              type: 'bar',
              name: 'app',
              itemStyle: {
                normal: {
                  color: '#30b08f'
                }
              },
              z: 10,
              data: [this.dataNum]
            }]
          })
        }
      }
    }
</script>
