<template>
  <div ref="chartRef" :class="className" :style="{ height: height, width: width }" />
</template>

<script setup>
import * as echarts from 'echarts'
const { proxy } = getCurrentInstance()
const chartRef = ref(null)
const props = defineProps({
  className: {
    type: String,
    default: 'chart',
  },
  width: {
    type: String,
    default: '100%',
  },
  height: {
    type: String,
    default: '350px',
  },
  autoResize: {
    type: Boolean,
    default: true,
  },
  chartData: {
    type: Object,
    required: true,
  },
})
let chart = null
watch(
  () => props.chartData,
  (val) => {
    setOptions(val)
  },
  { deep: true },
)

function setOptions({ expectedData, actualData } = {}) {
  chart.setOption({
    xAxis: {
      data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'],
      boundaryGap: false,
      axisTick: {
        show: false,
      },
    },
    grid: {
      left: 10,
      right: 10,
      bottom: 20,
      top: 30,
      containLabel: true,
    },
    tooltip: {
      trigger: 'axis',
      axisPointer: {
        type: 'cross',
      },
      padding: [5, 10],
    },
    yAxis: {
      axisTick: {
        show: false,
      },
    },
    legend: {
      data: ['expected', 'actual'],
    },
    series: [
      {
        name: 'expected',
        itemStyle: {
          color: '#FF005A',
          lineStyle: {
            color: '#FF005A',
            width: 2,
          },
        },
        smooth: true,
        type: 'line',
        data: expectedData,
        animationDuration: 2800,
        animationEasing: 'cubicInOut',
      },
      {
        name: 'actual',
        smooth: true,
        type: 'line',
        itemStyle: {
          color: '#3888fa',
          areaStyle: {
            color: '#f3f8ff',
          },
          lineStyle: {
            color: '#3888fa',
            width: 2,
          },
        },
        data: actualData,
        animationDuration: 2800,
        animationEasing: 'quadraticOut',
      },
    ],
  })
}
function initChart() {
  chart = echarts.init(proxy.$refs.chartRef, 'macarons')
  setOptions(props.chartData)
}
onMounted(() => {
  initChart()
})
window.onresize = function () {
  chart.resize()
}
</script>
