<template>
  <div :id="id" style="width: 100%; height: 100%"></div>
</template>
<script>
import * as echarts from 'echarts';
import { guid } from '@/utils/ruoyi';
import { reactive, toRefs, onMounted, watch, onUnmounted } from 'vue';
export default {
  name: 'line-chart',
  props: {
    data: Object,
    refresh: Number,
  },
  setup(props) {
    const allData = reactive({
      series: [],
      legend: [],
      id: guid(),
      chart: null,
      timer: null,
    });
    const resizeTheChart = () => {
      if (allData.chart) {
        allData.chart.resize();
      }
    };

    const init = () => {
      let chartDom = echarts.init(document.getElementById(allData.id));

      var option;
      option = {
        color: ['#3FFFC2', '#FFF21C'],
        tooltip: {
          trigger: 'axis',
        },
        grid: {
          top: 50,
          bottom: 30,
          right: 20,
        },

        xAxis: {
          data: ['12/1', '12/2', '12/3', '12/4', '12/5', '12/6'],
          axisPointer: {
            type: 'shadow',
          },
          textStyle: {
            color: '#EBFEFF',
          },
          axisLine: {
            lineStyle: {
              color: '#EBFEFF',
            },
          },
        },
        yAxis: [
          {
            type: 'value',
            name: '单位（个）',
            nameTextStyle: {
              color: '#eee',
            },
            splitLine: {
              show: false,
            },
            axisTick: {
              show: true,
            },
            axisLine: {
              show: true,
              lineStyle: {
                color: '#FFFFFF',
              },
            },
            axisLabel: {
              show: true,
              textStyle: {
                color: '#eee',
              },
            },
          },
          {
            type: 'value',
            name: '',
            nameTextStyle: {
              color: '#ebf8ac',
            },
            position: 'right',
            splitLine: {
              show: false,
            },
            axisTick: {
              show: false,
            },
            axisLine: {
              show: false,
            },
            axisLabel: {
              show: false,
              formatter: '{value} %', //右侧Y轴文字显示
              textStyle: {
                color: '#ebf8ac',
              },
            },
          },
          {
            type: 'value',
            gridIndex: 0,
            min: 50,
            max: 100,
            splitNumber: 8,
            splitLine: {
              show: false,
            },
            axisLine: {
              show: false,
            },
            axisTick: {
              show: false,
            },
            axisLabel: {
              show: false,
            },
            splitArea: {
              show: true,
              areaStyle: {
                color: ['rgba(250,250,250,0.0)', 'rgba(250,250,250,0.05)'],
              },
            },
          },
        ],
        series: [
          {
            name: '处置数量',
            type: 'line',
            yAxisIndex: 1, //使用的 y 轴的 index，在单个图表实例中存在多个 y轴的时候有用
            smooth: true, //平滑曲线显示
            showAllSymbol: true, //显示所有图形。
            symbol: 'circle', //标记的图形为实心圆
            symbolSize: 2, //标记的大小
            itemStyle: {
              //折线拐点标志的样式
              color: '#058cff',
            },
            lineStyle: {
              color: '#2BE7ABFF',
            },
            areaStyle: {
              opacity: 0.8,
              color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
                {
                  offset: 0,
                  color: '#1AF7AA',
                },
                {
                  offset: 1,
                  color: '#1AF7AA00',
                },
              ]),
            },
            data: [12, 12, 15, 18, 21, 8],
          },
          {
            name: '预警数量',
            type: 'bar',
            barWidth: 10,
            showBackground: true,
            itemStyle: {
              normal: {
                borderRadius: [10, 10, 0, 0], //（顺时针左上，右上，右下，左下）
                color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
                  {
                    offset: 0,
                    color: '#00FFE3',
                  },
                  {
                    offset: 1,
                    color: '#4693EC',
                  },
                ]),
              },
            },
            data: [30, 18, 10, 25, 38, 12],
          },
        ],
      };
      option && chartDom.setOption(option, true);
      allData.chart = chartDom;
      animateChart();
    };
    watch(
      () => props.refresh,
      () => {
        if (allData.chart) {
          allData.chart.dispose();
          allData.chart = null;
        }
        setTimeout(() => {
          init();
        }, 0);
      }
    );
    // echarts动画
    function animateChart() {
      let length = props.data.xAxis.length;
      let i = 0;
      allData.timer = setInterval(() => {
        i++;
        if (i == length) i = 0;
        allData.chart.dispatchAction({
          type: 'showTip',
          seriesIndex: 0,
          dataIndex: i,
        });
      }, 1500);
    }
    onMounted(() => {
      init();
      window.addEventListener('resize', resizeTheChart);
    });
    onUnmounted(() => {
      if (allData.timer) clearInterval(allData.timer);
    });
    return {
      ...toRefs(allData),
      resizeTheChart,
      init,
    };
  },
};
</script>