<template>
  <div>
    <Echart
      :options="options"
      id="bottomLeftChart"
      height="480px"
      width="100%"
    ></Echart>
  </div>
</template>

<script>
import Echart from '@/common/echart'
export default {
  data () {
    return {
      options: {},
    };
  },
  components: {
    Echart,
  },
  props: {
    cdata: {
      type: Object,
      default: () => ({})
    },
  },
  watch: {
    cdata: {
      handler (newData) {
        this.options = {
          tooltip: {
            trigger: "axis",
            backgroundColor: "rgba(255,255,255,0.1)",
            axisPointer: {
              type: "shadow",
              label: {
                show: true,
                backgroundColor: "#7B7DDC"
              }
            },
            formatter: function(params) {
              let result = params[0].name + '<br/>';
              params.forEach(function(item) {
                var value = item.value;
                var seriesName = item.seriesName;
                if (seriesName === '使用率') {
                  value = (value * 100).toFixed(1) + '%';
                } else {
                  value = value + ' 分钟';
                }
                result += '<span style="display:inline-block;margin-right:5px;border-radius:10px;width:9px;height:9px;background-color:' + item.color + '"></span>' + seriesName + '：' + value + '<br/>';
              });
              return result;
            }
          },
          legend: {
            data: ["实际使用时长", "计划使用时长", "使用率"],
            textStyle: {
              color: "#B4B4B4"
            },
            top: "0%"
          },
          grid: {
            x: "8%",
            width: "88%",
            y: "4%"
          },
          xAxis: {
            data: newData.category,
            axisLine: {
              lineStyle: {
                color: "#B4B4B4"
              }
            },
            axisTick: {
              show: false
            },
            axisLabel: {
              interval: 0, // 强制显示所有标签
              rotate: 45, // 标签旋转45度避免重叠
              textStyle: {
                fontSize: 10
              }
            }
          },
          yAxis: [
            {
              type: 'value',
              name: '使用时长(分钟)',
              splitLine: { show: false },
              axisLine: {
                lineStyle: {
                  color: "#B4B4B4"
                }
              },
              axisLabel: {
                formatter: '{value}'
              }
            },
            {
              type: 'value',
              name: '使用率',
              splitLine: { show: false },
              axisLine: {
                lineStyle: {
                  color: "#B4B4B4"
                }
              },
              axisLabel: {
                formatter: function(value) {
                  return (value * 100).toFixed(0) + '%';
                }
              },
              min: 0,
              max: 1
            }
          ],
          series: [
            {
              name: "使用率",
              type: "line",
              smooth: true,
              showAllSymbol: true,
              symbol: "emptyCircle",
              symbolSize: 8,
              yAxisIndex: 1,
              itemStyle: {
                normal: {
                  color: "#F02FC2"
                }
              },
              data: newData.rateData
            },
            {
              name: "实际使用时长",
              type: "bar",
              barWidth: 10,
              itemStyle: {
                normal: {
                  barBorderRadius: 5,
                  color: new this.$echarts.graphic.LinearGradient(0, 0, 0, 1, [
                    { offset: 0, color: "#956FD4" },
                    { offset: 1, color: "#3EACE5" }
                  ])
                }
              },
              data: newData.barData
            },
            {
              name: "计划使用时长",
              type: "bar",
              barGap: "-100%",
              barWidth: 10,
              itemStyle: {
                normal: {
                  barBorderRadius: 5,
                  color: new this.$echarts.graphic.LinearGradient(0, 0, 0, 1, [
                    { offset: 0, color: "rgba(156,107,211,0.8)" },
                    { offset: 0.2, color: "rgba(156,107,211,0.5)" },
                    { offset: 1, color: "rgba(156,107,211,0.2)" }
                  ])
                }
              },
              z: -12,
              data: newData.lineData
            }
          ]
        }
      },
      immediate: true,
      deep: true
    },
  },
}
</script>