import { Component, AfterViewInit, OnDestroy, ViewChild } from '@angular/core';
import {
  ChartComponent,
  ApexAxisChartSeries,
  ApexNonAxisChartSeries,
  ApexChart,
  ApexXAxis,
  ApexYAxis,
  ApexTitleSubtitle,
  ApexDataLabels,
  ApexStroke,
  ApexFill,
  ApexLegend,
  ApexTooltip,
  ApexMarkers,
  ApexPlotOptions,
  ApexResponsive,
  ApexGrid,
  ApexAnnotations,
  ApexStates,
  ApexTheme,
  NgApexchartsModule,
} from 'ng-apexcharts';

export type ChartOptions = {
  series?: ApexAxisChartSeries | ApexNonAxisChartSeries;
  chart?: ApexChart;
  xaxis?: ApexXAxis;
  yaxis?: ApexYAxis | ApexYAxis[];
  title?: ApexTitleSubtitle;
  subtitle?: ApexTitleSubtitle;
  dataLabels?: ApexDataLabels;
  stroke?: ApexStroke;
  fill?: ApexFill;
  legend?: ApexLegend;
  tooltip?: ApexTooltip;
  markers?: ApexMarkers;
  plotOptions?: ApexPlotOptions;
  responsive?: ApexResponsive[];
  grid?: ApexGrid;
  annotations?: ApexAnnotations;
  states?: ApexStates;
  theme?: ApexTheme;
  colors?: string[];
  labels?: any;
};

@Component({
  selector: 'app-chart',
  standalone: true,
  imports: [NgApexchartsModule],
  templateUrl: './chart.component.html',
})
export class AppChart implements AfterViewInit, OnDestroy {
  @ViewChild('chart') chart!: ChartComponent;
  private countsForAge = (minAge: any): any => {
          var frac = (90 - minAge) / 45 // 1 at age 45, 0 at age 90
          var total = Math.round(180 + 760 * frac)
          var femaleShare = 0.2 + 0.16 * frac
          var female = Math.round(total * femaleShare)
          return { female: female, male: total - female, total: total }
        };

  private readoutText = (minAge: any): any => {
          var c = this.countsForAge(minAge)
          var pct = ((c.female / c.total) * 100).toFixed(1)
          return (
            c.total.toLocaleString() +
            ' people aged ' +
            minAge +
            '+, ' +
            c.female.toLocaleString() +
            ' female (' +
            pct +
            '%)'
          )
        };

  private ageInput: any = document.querySelector('#age');

  private readout: any = document.querySelector('#readout');

  public chartOptions: Partial<ChartOptions> = {
          series: [338, 602],
          chart: {
            id: 'popChart',
            type: 'unit',
            height: 460,
            animations: {
              enabled: true,
              speed: 700,
            },
          },
          labels: ['Female', 'Male'],
          colors: ['#EE5A8F', '#1AA5A0'],
          legend: {
            position: 'bottom',
          },
          plotOptions: {
            unit: {
              layout: 'packed',
              sortByGroup: true,
              spacing: 1.1,
            },
          },
        };
  ngAfterViewInit() {
    (window as any).ApexCharts.setLicense('APEX-eyJpc3N1ZURhdGUiOiIyMDI2LTA0LTE2IiwiZXhwaXJ5RGF0ZSI6IjIwNTItMDQtMTciLCJwbGFuIjoiZW50ZXJwcmlzZSIsImRvbWFpbnMiOlsiYXBleGNoYXJ0cy5jb20iLCIxMjcuMC4wLjEiXX0=');

    this.ageInput.addEventListener('input', () => {
            var minAge = parseInt(this.ageInput.value, 10)
            this.readout.textContent = this.readoutText(minAge)
            var c = this.countsForAge(minAge)
            this.chart.updateSeries([c.female, c.male])
          })
  }

  ngOnDestroy() {
    // no cleanup needed
  }
}