<template>
  <div>
    <div id="chart">
      <apexchart
        type="bar"
        height="350"
        :options="chartOptions"
        :series="series"
      ></apexchart>
    </div>
  </div>
</template>

<script>
import VueApexCharts from 'vue-apexcharts'

export default {
  components: {
    apexchart: VueApexCharts,
  },
  data: function () {
    return {
      series: [
        {
          name: 'Coal',
          data: [44, 55, 41, 37, 22, 43, 21],
        },
        {
          name: 'Natural Gas',
          data: [53, 32, 33, 52, 13, 43, 32],
        },
        {
          name: 'Solar',
          data: [12, 17, 11, 9, 15, 11, 20],
        },
        {
          name: 'Wind',
          data: [9, 7, 5, 8, 6, 9, 4],
        },
      ],
      chartOptions: {
        chart: {
          type: 'bar',
          height: 350,
          stacked: true,
        },
        plotOptions: {
          bar: {
            horizontal: true,
            barHeight: '60%',
          },
        },
        dataLabels: {
          enabled: false,
        },
        stroke: {
          width: 2,
        },
        title: {
          text: 'Electricity Generation by Source',
        },
        xaxis: {
          categories: [2019, 2020, 2021, 2022, 2023, 2024, 2025],
        },
        yaxis: {
          title: {
            text: undefined,
          },
        },
        tooltip: {
          shared: false,
          y: {
            formatter: function (val) {
              return val + ' TWh'
            },
          },
        },
        fill: {
          type: 'pattern',
          opacity: 1,
          pattern: {
            style: [
              'circles',
              'slantedLines',
              'verticalLines',
              'horizontalLines',
            ], // string or array of strings
          },
        },
        states: {
          hover: {
            filter: 'none',
          },
        },
        legend: {
          position: 'right',
          offsetY: 40,
        },
      },
    }
  },
}
</script>

<style>
#chart {
  max-width: 650px;
  margin: 35px auto;
}
</style>