// Deterministic trade records. outcome is derived from the fluctuation sign,
// so brushing the fluctuation histogram visibly reshapes the outcome donut.
function tradesData() {
  var quarters = ['Q1', 'Q2', 'Q3', 'Q4']
  var days = ['Mon', 'Tue', 'Wed', 'Thu', 'Fri']
  var out = []
  for (var i = 0; i < 120; i++) {
    var pct =
      3.0 * Math.sin(i / 5.0) +
      1.3 * Math.sin(i / 1.7) +
      0.4 * Math.cos(i / 3.1)
    var vol = Math.round(120 + 70 * Math.sin(i / 6.0) + 40 * Math.cos(i / 2.3))
    out.push({
      id: i + 1,
      quarter: quarters[Math.floor(i / 30) % 4],
      day: days[(i * 3) % 5],
      outcome: pct >= 0 ? 'Gain' : 'Loss',
      pct: Math.round(pct * 100) / 100,
      volume: Math.max(20, vol),
    })
  }
  return out
}

// Register the shared record set BEFORE the charts are constructed.
ApexCharts.crossfilter({ id: 'trades', records: tradesData() })

var options = {
  series: [],
  chart: {
    id: 'byQuarter',
    type: 'donut',
    height: 260,
    fontFamily: 'Helvetica, Arial, sans-serif',
    animations: { speed: 450 },
    link: {
      id: 'trades',
      dimension: function (r) {
        return r.quarter
      },
      reduce: 'count',
      dimOpacity: 0.18,
    },
  },
  title: { text: 'Quarter', align: 'left' },
  legend: { position: 'bottom', fontSize: '12px' },
  plotOptions: { pie: { expandOnClick: false } },
  dataLabels: {
    enabled: true,
    formatter: function (v, o) {
      return o.w.config.series[o.seriesIndex]
    },
  },
  colors: ['#2563EB', '#0ea5e9', '#22c55e', '#f59e0b'],
}

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

var options1 = {
  series: [],
  chart: {
    id: 'byOutcome',
    type: 'donut',
    height: 260,
    fontFamily: 'Helvetica, Arial, sans-serif',
    animations: { speed: 450 },
    link: {
      id: 'trades',
      dimension: function (r) {
        return r.outcome
      },
      reduce: 'count',
      dimOpacity: 0.18,
    },
  },
  title: { text: 'Outcome', align: 'left' },
  legend: { position: 'bottom', fontSize: '12px' },
  plotOptions: { pie: { expandOnClick: false } },
  dataLabels: {
    enabled: true,
    formatter: function (v, o) {
      return o.w.config.series[o.seriesIndex]
    },
  },
  colors: ['#22c55e', '#ef4444'],
}

var chart1 = new ApexCharts(document.querySelector('#chart2'), options1)
chart1.render()

var options2 = {
  series: [],
  chart: {
    id: 'byDay',
    type: 'bar',
    height: 260,
    fontFamily: 'Helvetica, Arial, sans-serif',
    animations: { speed: 450 },
    link: {
      id: 'trades',
      dimension: function (r) {
        return r.day
      },
      reduce: 'count',
      seriesName: 'Trades',
      dimOpacity: 0.18,
    },
  },
  title: { text: 'Day of week', align: 'left' },
  plotOptions: {
    bar: { columnWidth: '55%', borderRadius: 3, distributed: true },
  },
  legend: { show: false },
  dataLabels: { enabled: false },
  colors: ['#2563EB', '#0ea5e9', '#22c55e', '#f59e0b', '#F43F5E'],
}

var chart2 = new ApexCharts(document.querySelector('#chart3'), options2)
chart2.render()

var options3 = {
  series: [],
  chart: {
    id: 'byFluctuation',
    type: 'bar',
    height: 240,
    fontFamily: 'Helvetica, Arial, sans-serif',
    animations: { speed: 400 },
    zoom: { enabled: false },
    selection: { enabled: true },
    toolbar: {
      autoSelected: 'selection',
      tools: {
        selection: true,
        zoom: false,
        pan: false,
        reset: false,
        download: false,
      },
    },
    link: {
      id: 'trades',
      dimension: function (r) {
        return r.pct
      },
      bins: { count: 26 },
      dimOpacity: 0.16,
    },
  },
  title: { text: 'Fluctuation % (brush a range)', align: 'left' },
  plotOptions: { bar: { columnWidth: '92%' } },
  dataLabels: { enabled: false },
  xaxis: {
    type: 'numeric',
    tickAmount: 8,
    labels: {
      formatter: function (v) {
        return Number(v).toFixed(1)
      },
    },
  },
  colors: ['#2563EB'],
}

var chart3 = new ApexCharts(document.querySelector('#chart4'), options3)
chart3.render()

var options4 = {
  series: [],
  chart: {
    id: 'byVolume',
    type: 'bar',
    height: 240,
    fontFamily: 'Helvetica, Arial, sans-serif',
    animations: { speed: 400 },
    zoom: { enabled: false },
    selection: { enabled: true },
    toolbar: {
      autoSelected: 'selection',
      tools: {
        selection: true,
        zoom: false,
        pan: false,
        reset: false,
        download: false,
      },
    },
    link: {
      id: 'trades',
      dimension: function (r) {
        return r.volume
      },
      bins: { count: 22 },
      dimOpacity: 0.16,
    },
  },
  title: { text: 'Volume (brush a range)', align: 'left' },
  plotOptions: { bar: { columnWidth: '92%' } },
  dataLabels: { enabled: false },
  xaxis: {
    type: 'numeric',
    tickAmount: 8,
    labels: {
      formatter: function (v) {
        return Math.round(v)
      },
    },
  },
  colors: ['#0ea5e9'],
}

var chart4 = new ApexCharts(document.querySelector('#chart5'), options4)
chart4.render()

// Five charts (chart..chart4) + a live data table, all over the 'trades' set.
var cf = ApexCharts.getCrossfilter('trades')
var readout = document.getElementById('cfd-readout')

if (cf) {
  // Bind the data table to the filtered rows; it re-renders on every change.
  cf.dataTable(document.getElementById('cfd-table'), {
    columns: [
      { field: 'id', label: '#' },
      { field: 'quarter', label: 'Quarter' },
      { field: 'day', label: 'Day' },
      { field: 'outcome', label: 'Outcome' },
      {
        field: 'pct',
        label: 'Fluctuation %',
        format: function (v) {
          return v.toFixed(2) + '%'
        },
      },
      { field: 'volume', label: 'Volume' },
    ],
  })

  cf.on('change', function (state) {
    var ids = Object.keys(state.filters)
    var label = ids.length ? ids.join(', ') : 'none'
    readout.textContent =
      state.filteredCount +
      ' / ' +
      state.total +
      ' trades   (active: ' +
      label +
      ')'
  })

  // Seed the readout with the unfiltered totals.
  var s = cf.state()
  readout.textContent =
    s.filteredCount + ' / ' + s.total + ' trades   (active: none)'
}

document.getElementById('cfd-reset').addEventListener('click', function () {
  if (cf) cf.reset()
})