<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 } from "vue";
export default {
  name: "line-chart",
  props: {
    data: Object,
    refresh: Number,
  },
  setup(props) {
    const allData = reactive({
      series: [],
      legend: [],
      id: guid(),
      chart: null,
    });
    const resizeTheChart = () => {
      nextTick(() => {
        if (allData.chart) {
          allData.chart.resize();
        }
      });
    };

    const init = () => {
      let chartDom = echarts.init(document.getElementById(allData.id));
      var option;
      option = {
        // backgroundColor: '#0e2147',
        color: ["#3FFFC2"],
        grid: {
          //   left: '5%',
          top: "10%",
          bottom: "20%",
          right: "5%",
        },
        tooltip: {
          trigger: "axis",
          formatter: (params) => {
            // console.log(params);
            var relVal = "" + params[0].name;
            for (var i = 0, l = params.length; i < l; i++) {
              if (params[i].seriesName) {
                let unit = params[i].seriesName == "K线性拟合" ? "mm" : "毫米";
                relVal +=
                  "<br/>" +
                  params[i].marker +
                  params[i].seriesName +
                  " " +
                  params[i].value +
                  unit;
              }
            }
            return relVal;
          },
        },
        legend: {
          // type: 'scroll',
          data: [],
          itemWidth: 18,
          itemHeight: 12,
          textStyle: {
            color: "#00ffff",
            fontSize: 14,
          },
        },
        yAxis: [
          {
            type: "value",
            position: "left",
            nameTextStyle: {
              color: "#3FFFC2",
            },
            splitLine: {
              lineStyle: {
                type: "dashed",
                color: "rgba(135,140,147,0.8)",
              },
            },
            axisLine: {
              show: false,
            },
            axisTick: {
              show: false,
            },
            axisLabel: {
              formatter: "{value}",

              color: "#fff",
              fontSize: 14,
            },
          },
        ],
        xAxis: [
          {
            type: "category",
            axisTick: {
              show: false,
            },
            axisLine: {
              show: false,
              lineStyle: {
                color: "#3FFFC2",
              },
            },
            axisLabel: {
              inside: false,
              textStyle: {
                color: "#fff", // x轴颜色
                fontWeight: "normal",
                fontSize: "14",
                lineHeight: 22,
              },
            },
            data: props.data.XName,
          },
        ],
        series: [
          {
            symbolSize: 10,
            name: "降雨量",
            type: "line",
            animationDuration: 8000, // 动画持续时间
            animationEasing: "cubicInOut",
            data: props.data.data1,
            itemStyle: {
              borderWidth: 5,
              // color: '#0696f9',
            },
          },
          {
            type: "lines",
            coordinateSystem: "cartesian2d",
            symbolSize: 30,
            polyline: true,

            effect: {
              show: true,
              trailLength: 0,
              symbol: "arrow",
              period: 25, //光点滑动速度
              symbolSize: 15,
            },

            lineStyle: {
              width: 1,
              opacity: 0.6,
              curveness: 0.2,
            },
            data: props.data.data,
          },
        ],
      };
      option && chartDom.setOption(option, true);
      allData.chart = chartDom;
    };
    watch(
      () => props.refresh,
      () => {
        if (allData.chartDom) {
          allData.chartDom.dispose();
          allData.chartDom = null;
        }
        setTimeout(() => {
          init();
        }, 0);
      }
    );
    onMounted(() => {
      init();
      window.addEventListener("resize", resizeTheChart);
    });
    return {
      ...toRefs(allData),
      resizeTheChart,
      init,
    };
  },
};
</script>