<template>
  <div>
    <div class="wrap">
      <h1>11,600 GWh of renewable electricity, one dot per 20</h1>
      <p>
        A sun built from its own data. The shape is a custom unit layout: a
        function that receives every dot and the plot rect and returns
        positions, so the rays are packed from the outline rather than drawn
        behind the dots.
      </p>

      <div class="chart-wrap">
        <div id="chart">
          <apexchart
            type="unit"
            height="470"
            :options="chartOptions"
            :series="series"
          ></apexchart>
        </div>
      </div>

      <p class="note">1 dot = 20 GWh</p>
    </div>
  </div>
</template>

<script>
import VueApexCharts from 'vue-apexcharts'

// This demo also loads: https://cdn.jsdelivr.net/npm/apexcharts/dist/unit-shapes.js

export default {
  components: {
    apexchart: VueApexCharts,
  },
  data: function () {
    return {
      series: [6200, 2400, 2000, 1000],
      chartOptions: {
        chart: {
          type: 'unit',
          height: 470,
          animations: {
            enabled: true,
            speed: 900,
          },
        },
        labels: ['Solar farms', 'Rooftop solar', 'Wind', 'Hydro'],
        colors: ['#FFAB00', '#F2994A', '#00A6A0', '#1565C0'],
        plotOptions: {
          unit: {
            layout: 'custom',
            // One of the shapes in apexcharts/unit-shapes.
            positions: 'sun',
            transition: 'flow',
            unitValue: 20,
            clusterLabels: {
              // Outer labels: each band is named in the margin with a leader line to its
              // own dots, so the crowd reads without a legend.
              external: {
                show: true,
              },
            },
          },
        },
        legend: {
          show: false,
        },
      },
    }
  },
}
</script>

<style>
body {
  font-family:
    -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: #fafbfc;
  color: #2c3e50;
  margin: 0;
  padding: 32px 16px;
}
.wrap {
  max-width: 720px;
  margin: 0 auto;
}
h1 {
  font-size: 22px;
  margin: 0 0 8px;
}
p {
  color: #5b6b78;
  line-height: 1.5;
  margin: 0 0 24px;
}
.chart-wrap {
  background: #fff;
  border-radius: 8px;
  padding: 16px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
}
.note {
  color: #8592a0;
  font-size: 12px;
  text-align: center;
  margin: 16px 0 0;
}
</style>