<script setup lang="ts">
import { ref, onMounted } from 'vue';
import * as echarts from 'echarts';
type EChartsOption = echarts.EChartsOption;
type ECharts = echarts.ECharts;

const colors = ['#95D1CC', '#809A6F', '#FDAF75'];
const chartMultipleYRef = ref<any>(null);

onMounted(() => {
  getChart();
});

var multipleYChart: ECharts;
function getChart() {
  if (multipleYChart != null && multipleYChart != undefined) {
    multipleYChart.dispose();
  }
  multipleYChart = echarts.init(chartMultipleYRef.value);
  let option: EChartsOption;
  option = {
    color: colors,
    tooltip: {
      trigger: 'axis',
      axisPointer: {
        type: 'cross',
      },
    },
    grid: {
      top: 40,
      bottom: 50,
      left: 50,
      right: 150,
    },
    legend: {
      top: 7,
      data: ['蒸发', '降水', '温度'],
    },
    xAxis: [
      {
        type: 'category',
        axisTick: {
          alignWithLabel: true,
        },
        data: [
          '1月',
          '2月',
          '3月',
          '4月',
          '5月',
          '6月',
          '7月',
          '8月',
          '9月',
          '10月',
          '11月',
          '12月',
        ],
      },
    ],
    yAxis: [
      {
        type: 'value',
        name: '蒸发',
        position: 'right',
        alignTicks: true,
        axisLine: {
          show: true,
          lineStyle: {
            color: colors[0],
          },
        },
        axisLabel: {
          formatter: '{value} ml',
        },
      },
      {
        type: 'value',
        name: '降水',
        position: 'right',
        alignTicks: true,
        offset: 80,
        axisLine: {
          show: true,
          lineStyle: {
            color: colors[1],
          },
        },
        axisLabel: {
          formatter: '{value} ml',
        },
      },
      {
        type: 'value',
        name: '温度',
        position: 'left',
        alignTicks: true,
        axisLine: {
          show: true,
          lineStyle: {
            color: colors[2],
          },
        },
        axisLabel: {
          formatter: '{value} °C',
        },
      },
    ],
    series: [
      {
        name: '蒸发',
        type: 'bar',
        data: [
          2.0, 4.9, 7.0, 23.2, 25.6, 76.7, 135.6, 162.2, 32.6, 20.0, 6.4, 3.3,
        ],
      },
      {
        name: '降水',
        type: 'bar',
        yAxisIndex: 1,
        data: [
          2.6, 5.9, 9.0, 26.4, 28.7, 70.7, 175.6, 182.2, 48.7, 18.8, 6.0, 2.3,
        ],
      },
      {
        name: '温度',
        type: 'line',
        yAxisIndex: 2,
        data: [
          2.0, 2.2, 3.3, 4.5, 6.3, 10.2, 20.3, 23.4, 23.0, 16.5, 12.0, 6.2,
        ],
      },
    ],
  };
  option && multipleYChart.setOption(option);
}
</script>
<template>
  <div class="fit" ref="chartMultipleYRef"></div>
</template>

<style lang="scss" scoped></style>
