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 DATASETS: any = {
          departments: {
            values: [200, 120, 90, 70],
            labels: ['Engineering', 'Sales', 'Operations', 'Design'],
            colors: ['#008FFB', '#00B8D9', '#36B37E', '#FFAB00'],
            layout: 'grouped',
          },
          seniority: {
            values: [60, 420],
            labels: ['Leadership', 'Staff'],
            colors: ['#FFAB00', '#7B8794'],
            layout: 'packed',
          },
        };

  private randomWorkforce = (): any => {
          var eng = Math.floor(Math.random() * 110) + 150
          var sales = Math.floor(Math.random() * 70) + 90
          var ops = Math.floor(Math.random() * 60) + 60
          var design = Math.floor(Math.random() * 50) + 45
          return [eng, sales, ops, design]
        };

  private setActive = (id: any): any => {
          document
            .querySelectorAll('.actions button[data-dataset]')
            .forEach(function (btn) {
              btn.classList.toggle('active', btn.getAttribute('data-dataset') === id)
            })
        };

  private current: any = 'departments';

  public chartOptions: Partial<ChartOptions> = {
          series: [200, 120, 90, 70],
          chart: {
            id: 'unitChart',
            type: 'unit',
            height: 420,
            animations: {
              enabled: true,
              speed: 900,
            },
          },
          labels: ['Engineering', 'Sales', 'Operations', 'Design'],
          colors: ['#008FFB', '#00B8D9', '#36B37E', '#FFAB00'],
          plotOptions: {
            unit: {
              layout: 'grouped',
              shape: 'circle',
              size: 'auto',
              clusterLabels: {
                show: true,
              },
            },
          },
          legend: {
            position: 'bottom',
          },
        };
  ngAfterViewInit() {
    (window as any).ApexCharts.setLicense('APEX-eyJpc3N1ZURhdGUiOiIyMDI2LTA0LTE2IiwiZXhwaXJ5RGF0ZSI6IjIwNTItMDQtMTciLCJwbGFuIjoiZW50ZXJwcmlzZSIsImRvbWFpbnMiOlsiYXBleGNoYXJ0cy5jb20iLCIxMjcuMC4wLjEiXX0=');
    this.setActive(this.current)

    document
            .querySelectorAll('.actions button[data-dataset]')
            .forEach(function (btn) {
              btn.addEventListener('click', () => {
                var id = btn.getAttribute('data-dataset')
                if (id === this.current) return
                this.current = id
                this.setActive(this.current)
                var ds = this.DATASETS[id]
                this.chart.updateOptions({
                  colors: ds.colors,
                  labels: ds.labels,
                  plotOptions: { unit: { layout: ds.layout } },
                  series: ds.values,
                })
              })
            })
    document.querySelector('#shuffle')?.addEventListener('click', () => {
            if (this.current !== 'departments') return
            this.chart.updateSeries(this.randomWorkforce())
          })
  }

  ngOnDestroy() {
    // no cleanup needed
  }
}