Apex = {
  chart: {
    toolbar: {
      show: false,
    },
  },
  tooltip: {
    shared: false,
  },
  legend: {
    show: false,
  },
}

var colors = [
  '#008FFB',
  '#00E396',
  '#FEB019',
  '#FF4560',
  '#775DD0',
  '#00D9E9',
  '#FF66C3',
]

/**
 * Randomize array element order in-place.
 * Using Durstenfeld shuffle algorithm.
 */
function shuffleArray(array) {
  for (var i = array.length - 1; i > 0; i--) {
    var j = Math.floor(Math.random() * (i + 1))
    var temp = array[i]
    array[i] = array[j]
    array[j] = temp
  }
  return array
}

var arrayData = [
  {
    y: 400,
    quarters: [
      {
        x: 'Q1',
        y: 120,
      },
      {
        x: 'Q2',
        y: 90,
      },
      {
        x: 'Q3',
        y: 100,
      },
      {
        x: 'Q4',
        y: 90,
      },
    ],
  },
  {
    y: 430,
    quarters: [
      {
        x: 'Q1',
        y: 120,
      },
      {
        x: 'Q2',
        y: 110,
      },
      {
        x: 'Q3',
        y: 90,
      },
      {
        x: 'Q4',
        y: 110,
      },
    ],
  },
  {
    y: 448,
    quarters: [
      {
        x: 'Q1',
        y: 70,
      },
      {
        x: 'Q2',
        y: 100,
      },
      {
        x: 'Q3',
        y: 140,
      },
      {
        x: 'Q4',
        y: 138,
      },
    ],
  },
  {
    y: 470,
    quarters: [
      {
        x: 'Q1',
        y: 150,
      },
      {
        x: 'Q2',
        y: 60,
      },
      {
        x: 'Q3',
        y: 190,
      },
      {
        x: 'Q4',
        y: 70,
      },
    ],
  },
  {
    y: 540,
    quarters: [
      {
        x: 'Q1',
        y: 120,
      },
      {
        x: 'Q2',
        y: 120,
      },
      {
        x: 'Q3',
        y: 130,
      },
      {
        x: 'Q4',
        y: 170,
      },
    ],
  },
  {
    y: 580,
    quarters: [
      {
        x: 'Q1',
        y: 170,
      },
      {
        x: 'Q2',
        y: 130,
      },
      {
        x: 'Q3',
        y: 120,
      },
      {
        x: 'Q4',
        y: 160,
      },
    ],
  },
]

function makeData() {
  var dataSet = shuffleArray(arrayData)

  var dataYearSeries = [
    {
      x: '2011',
      y: dataSet[0].y,
      color: colors[0],
      quarters: dataSet[0].quarters,
    },
    {
      x: '2012',
      y: dataSet[1].y,
      color: colors[1],
      quarters: dataSet[1].quarters,
    },
    {
      x: '2013',
      y: dataSet[2].y,
      color: colors[2],
      quarters: dataSet[2].quarters,
    },
    {
      x: '2014',
      y: dataSet[3].y,
      color: colors[3],
      quarters: dataSet[3].quarters,
    },
    {
      x: '2015',
      y: dataSet[4].y,
      color: colors[4],
      quarters: dataSet[4].quarters,
    },
    {
      x: '2016',
      y: dataSet[5].y,
      color: colors[5],
      quarters: dataSet[5].quarters,
    },
  ]

  return dataYearSeries
}

function updateQuarterChart(sourceChart, destChartIDToUpdate) {
  var series = []
  var seriesIndex = 0
  var colors = []

  if (sourceChart.w.globals.selectedDataPoints[0]) {
    var selectedPoints = sourceChart.w.globals.selectedDataPoints
    for (var i = 0; i < selectedPoints[seriesIndex].length; i++) {
      var selectedIndex = selectedPoints[seriesIndex][i]
      var yearSeries = sourceChart.w.config.series[seriesIndex]
      series.push({
        name: yearSeries.data[selectedIndex].x,
        data: yearSeries.data[selectedIndex].quarters,
      })
      colors.push(yearSeries.data[selectedIndex].color)
    }

    if (series.length === 0)
      series = [
        {
          data: [],
        },
      ]

    return ApexCharts.exec(destChartIDToUpdate, 'updateOptions', {
      series: series,
      colors: colors,
      fill: {
        colors: colors,
      },
    })
  }
}

var options = {
  series: [
    {
      data: makeData(),
    },
  ],
  chart: {
    id: 'barYear',
    height: 400,
    width: '100%',
    type: 'bar',
    events: {
      dataPointSelection: function (e, chart, opts) {
        var quarterChartEl = document.querySelector('#chart-quarter')
        var yearChartEl = document.querySelector('#chart-year')

        if (opts.selectedDataPoints[0].length === 1) {
          if (quarterChartEl.classList.contains('active')) {
            updateQuarterChart(chart, 'barQuarter')
          } else {
            yearChartEl.classList.add('chart-quarter-activated')
            quarterChartEl.classList.add('active')
            updateQuarterChart(chart, 'barQuarter')
          }
        } else {
          updateQuarterChart(chart, 'barQuarter')
        }

        if (opts.selectedDataPoints[0].length === 0) {
          yearChartEl.classList.remove('chart-quarter-activated')
          quarterChartEl.classList.remove('active')
        }
      },
      updated: function (chart) {
        updateQuarterChart(chart, 'barQuarter')
      },
    },
  },
  plotOptions: {
    bar: {
      distributed: true,
      horizontal: true,
      barHeight: '75%',
      dataLabels: {
        position: 'bottom',
      },
    },
  },
  dataLabels: {
    enabled: true,
    textAnchor: 'start',
    style: {
      colors: ['#fff'],
    },
    formatter: function (val, opt) {
      return opt.w.globals.labels[opt.dataPointIndex]
    },
    offsetX: 0,
    dropShadow: {
      enabled: true,
    },
  },

  colors: colors,

  states: {
    normal: {
      filter: {
        type: 'desaturate',
      },
    },
    active: {
      allowMultipleDataPointsSelection: true,
      filter: {
        type: 'darken',
        value: 1,
      },
    },
  },
  tooltip: {
    x: {
      show: false,
    },
    y: {
      title: {
        formatter: function (val, opts) {
          return opts.w.globals.labels[opts.dataPointIndex]
        },
      },
    },
  },
  title: {
    text: 'Yearly Results',
    offsetX: 15,
  },
  subtitle: {
    text: '(Click on bar to see details)',
    offsetX: 15,
  },
  yaxis: {
    labels: {
      show: false,
    },
  },
}

var chart = new ApexCharts(document.querySelector('#chart-year'), options)
chart.render()

var optionsQuarter = {
  series: [
    {
      data: [],
    },
  ],
  chart: {
    id: 'barQuarter',
    height: 400,
    width: '100%',
    type: 'bar',
    stacked: true,
  },
  plotOptions: {
    bar: {
      columnWidth: '50%',
      horizontal: false,
    },
  },
  legend: {
    show: false,
  },
  grid: {
    yaxis: {
      lines: {
        show: false,
      },
    },
    xaxis: {
      lines: {
        show: true,
      },
    },
  },
  yaxis: {
    labels: {
      show: false,
    },
  },
  title: {
    text: 'Quarterly Results',
    offsetX: 10,
  },
  tooltip: {
    x: {
      formatter: function (val, opts) {
        return opts.w.globals.seriesNames[opts.seriesIndex]
      },
    },
    y: {
      title: {
        formatter: function (val, opts) {
          return opts.w.globals.labels[opts.dataPointIndex]
        },
      },
    },
  },
}

var chartQuarter = new ApexCharts(
  document.querySelector('#chart-quarter'),
  optionsQuarter,
)
chartQuarter.render()