<template>
  <!-- 天气温度平滑折线图 -->
  <div :id="id" style="width: 100%; height: 100%"></div>
</template>
<script setup>
import { guid } from '@/utils/ruoyi';
import { nextTick } from 'vue';
const id = guid();
const myChart = shallowRef('');
import * as echarts from 'echarts';

const props = defineProps({
  //刷新标志
  refresh: {
    type: [String, Number],
    default: 1,
  },
  //x轴数据
  XAxis: {
    type: Array,
    default: () => [],
  },
  //y轴数据
  YAxis: {
    type: Array,
    default: () => [],
  },
  //类型
  typeName: {
    type: String,
    default: '',
  },
});

watch(
  () => props.refresh,
  value => {
    //先销毁实例
    myChart.value && myChart.value.dispose();
    init();
  },
  {
    deep: true,
  }
);

function init() {
  myChart.value = echarts.init(document.getElementById(id));

  let option = {
    tooltip: {
      trigger: 'axis',
      backgroundColor: '#004284',
      borderColor: '#0B9BFF',
      borderRadius: 6, // 设置圆角大小
      textStyle: {
        // 字体颜色
        color: 'white',
        // 字体大小
        fontSize: 14,
      },
      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 = '';
            relVal += '<br/>' + params[i].marker + params[i].seriesName + ' ' + params[i].value + unit;
          }
        }
        return relVal;
      },
    },
    grid: {
      left: '10%',
      right: '4%',
      bottom: '10%',
      top: '8%',
      containLabel: true,
    },
    xAxis: {
      boundaryGap: true,
      type: 'category',
      data: props.XAxis,
      axisLabel: {
        show: true,
        color: '#fff',
        formatter: function (params) {
          let newParamsName = params.substring(10, 16);
          return newParamsName;
        },
      },
      axisLine: {
        show: true,
        lineStyle: {
          show: true, //是否显示坐标轴轴线，
          color: 'rgba(255,255,255,0.4)', //x轴轴线的颜色
          width: 1, //x轴粗细
        },
      },
      axisTick: {
        show: false, //是否显示刻度
      },
    },
    yAxis: {
      type: 'value',
      name: props.typeName,
      nameLocation: 'start',
      nameTextStyle: {
        color: '#AED2E0',
        padding: [-8, 0, 0, -70], // 四个数字分别为上右下左与原位置距离
      },
      axisLabel: {
        show: true,
        color: '#AED2E0',
        formatter: function (value) {
          return value.toFixed(1); // 显示小数点后两位
        },
      },
      splitLine: {
        show: true, // 是否显示分隔线。默认数值轴显示，类目轴不显示
        type: 'solid', // 坐标轴线线的类型（'solid'，实线类型；'dashed'，虚线类型；'dotted',点状类型）
        lineStyle: {
          color: 'rgba(255,255,255,0.2)',
          width: 1, // 设置分割线的粗细为2
        },
      },
      axisLine: {
        show: true,
        lineStyle: {
          show: true, //是否显示坐标轴轴线，
          color: 'rgba(255,255,255,0.4)', //x轴轴线的颜色
          width: 1, //x轴粗细
        },
      },
    },
    series: [
      {
        itemStyle: {
          color: 'rgba(119, 201, 235,1)',
        },
        name: props.typeName,
        data: props.YAxis,
        type: 'line',
        lineStyle: {
          // 线性渐变，前四个参数分别是 x0, y0, x2, y2, 范围从 0 - 1，相当于在图形包围盒中的百分比，如果 globalCoord 为 `true`，则该四个值是绝对的像素位置
          // color: "#CB2F0C",
          color: {
            type: 'linear',
            x: 0,
            y: 0,
            x2: 1,
            y2: 0,
            colorStops: [
              {
                offset: 0,
                color: 'rgba(119, 201, 235, 1)', // 0% 处的颜色
              },
              {
                offset: 1,
                color: 'rgba(119, 201, 235, 1)', // 0% 处的颜色
              },
            ],
            globalCoord: false, // 缺省为 false
          },
          width: 2,
        },
        areaStyle: {
          normal: {
            color: {
              x: 0,
              y: 0,
              x2: 0,
              y2: 1,
              colorStops: [
                {
                  offset: 0,
                  color: 'rgba(110, 162, 251,1)',
                },
                {
                  offset: 0.13,
                  color: 'rgba(7, 81, 188,1)',
                },
                {
                  offset: 0.16,
                  color: 'rgba(7, 81, 188,1)',
                },
                {
                  offset: 0.2,
                  color: 'rgba(27, 91, 181,1)',
                },
                {
                  offset: 0.99,
                  color: 'rgba(119, 201, 235,0)',
                },
              ],
              globalCoord: false, // 缺省为 false
            },
          },
        },
      },
    ],
  };

  option && myChart.value.setOption(option);
}

function resizeTheChart() {
  if (myChart.value) {
    myChart.value.resize();
  }
}
onMounted(() => {
  nextTick(() => {
    init();
    window.addEventListener('resize', resizeTheChart);
  });
});
</script>