import React from 'react'
import ReactApexChart from 'react-apexcharts'
import './styles.css'

const ApexChart = () => {
  const [state, setState] = React.useState({
    series: [
      {
        name: 'Frontend',
        data: [
          {
            x: 'Design',
            y: [
              new Date('2024-03-05').getTime(),
              new Date('2024-03-08').getTime(),
            ],
          },
          {
            x: 'Code',
            y: [
              new Date('2024-03-08').getTime(),
              new Date('2024-03-11').getTime(),
            ],
          },
          {
            x: 'Test',
            y: [
              new Date('2024-03-11').getTime(),
              new Date('2024-03-16').getTime(),
            ],
          },
        ],
      },
      {
        name: 'Backend',
        data: [
          {
            x: 'Design',
            y: [
              new Date('2024-03-02').getTime(),
              new Date('2024-03-05').getTime(),
            ],
          },
          {
            x: 'Code',
            y: [
              new Date('2024-03-06').getTime(),
              new Date('2024-03-09').getTime(),
            ],
          },
          {
            x: 'Test',
            y: [
              new Date('2024-03-10').getTime(),
              new Date('2024-03-19').getTime(),
            ],
          },
        ],
      },
    ],
    options: {
      chart: {
        height: 350,
        type: 'rangeBar',
      },
      title: {
        text: 'Frontend vs Backend Schedule',
      },
      plotOptions: {
        bar: {
          borderRadius: 10,
          horizontal: true,
        },
      },
      dataLabels: {
        enabled: true,
        formatter: function (val) {
          var diff = Math.round((val[1] - val[0]) / (1000 * 60 * 60 * 24))
          return diff + (diff > 1 ? ' days' : ' day')
        },
      },
      fill: {
        type: 'gradient',
        gradient: {
          shade: 'light',
          type: 'vertical',
          shadeIntensity: 0.25,
          gradientToColors: undefined,
          inverseColors: true,
          opacityFrom: 1,
          opacityTo: 1,
          stops: [50, 0, 100, 100],
        },
      },
      xaxis: {
        type: 'datetime',
      },
      legend: {
        position: 'top',
      },
    },
  })

  return (
    <div>
      <div id="chart">
        <ReactApexChart
          options={state.options}
          series={state.series}
          type="rangeBar"
          height={350}
        />
      </div>
    </div>
  )
}

export default ApexChart