<template>
  <div :id="id" style="width: 100%; height: 100%"></div>
</template>
<script>
import * as echarts from "echarts";
import { guid } from "@/utils/util";
import { reactive, toRefs, onMounted, watch } from "vue";
export default {
  name: "line-chart",
  props: {
    data: Object,
  },
 
  setup(props) {
    const state = reactive({
      id: guid(),
      chart: null,
    });
    const resizeTheChart = () => {
      if (state.chart) {
          state.chart.resize();
      }
    };
    const init = () => {
      let chartDom = echarts.init(document.getElementById(state.id));
      var option;
      option = {
        tooltip: {
          trigger: "axis",
          axisPointer: {
            type: "shadow",
          },
        },
        grid: {
          top: "14%",
          left: "3%",
          right: "3%",
          bottom: "5%",
          containLabel: true,
        },
        xAxis: {
          type: "category",
          data: ["15:00", "16:00", "17:00", "18:00", "19:00", "20:00"],
          splitLine: {
            show: true,
          },
        },
        yAxis: {
          type: "value",
          name: 'mm',
          axisLine: {
            show: true,
          },
          splitLine: {
            show: true,
            // lineStyle: {
            //   color: props.data.yAxisColor,
            //   width: 1,
            //   type: "solid",
            // },
          },
        },
        series:[{
            name:'泵房水位',
          data: [120, 200, 150, 80, 70, 110],
          type: "line",
           showSymbol: false,
          itemStyle: {
            normal: {
             color: "rgba(90, 194, 233, 0.27)",
              lineStyle: {
                color: "rgba(90, 194, 233, 0.27)"
              },
            },
          },
          // 填充区域的样式
          areaStyle: {
            normal: {
              // 填充色渐变
              color: new echarts.graphic.LinearGradient(0, 0, 0, 1,  [
                    { offset: 1, color: "rgba(255, 255, 255, 0)" },
                    { offset: 0, color: "rgba(90, 194, 233, 1)" },
                  ]),
            },
          },
        }]
      };

      option && chartDom.setOption(option,true);
      state.chart=chartDom
    };
    onMounted(() => {
      init();
      window.addEventListener("resize", resizeTheChart);
    });
    return {
      ...toRefs(state),
      resizeTheChart,
      init,
    };
  },
};
</script>