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 bigSeries = (seed: any, amp: any): any => {
          var d = []
          var v = seed
          for (var i = 0; i < 40; i++) {
            v += (Math.random() - 0.5) * amp
            d.push({ x: i + 1, y: Math.round(v) })
          }
          return d
        };

  private viewsSel: any = document.getElementById('views');

  private linkEl: any = document.getElementById('link');

  private saveCount: any = 0;

  private refreshList = (): any => {
          var list = this.chart.perspectives.list()
          this.viewsSel.innerHTML =
            '<option value="">' +
            (list.length ? 'Pick a saved view...' : '(none yet)') +
            '</option>'
          list.forEach(function (p) {
            var o = document.createElement('option')
            o.value = p.id
            o.textContent = p.name
            this.viewsSel.appendChild(o)
          })
        };

  public chartOptions: Partial<ChartOptions> = {
          series: [
            { name: 'North', data: this.bigSeries(50, 14) },
            { name: 'South', data: this.bigSeries(70, 10) },
          ],
          chart: {
            height: 380,
            type: 'line',
            id: 'perspectives-demo',
            animations: { enabled: true },
            toolbar: {
              show: true,
              tools: { zoom: true, pan: true, reset: true, download: false },
            },
            zoom: { enabled: true, type: 'x' },
            ink: { enabled: true },
            contextMenu: { enabled: true },
          },
          colors: ['#1971c2', '#e0447e'],
          stroke: { curve: 'smooth', width: 2 },
          dataLabels: { enabled: false },
          title: { text: 'Capture, apply, and share the exact view', align: 'left' },
          xaxis: { type: 'numeric', title: { text: 'Step' } },
          legend: { position: 'top' },
        };
  ngAfterViewInit() {
    (window as any).ApexCharts.setLicense('APEX-eyJleHBpcnlEYXRlIjoiMjEyNi0wNy0wNCIsImlzc3VlRGF0ZSI6IjIwMjYtMDctMjgiLCJwbGFuIjoicHJlbWl1bSIsImRvbWFpbnMiOlsiYXBleGNoYXJ0cy5jb20iLCIxMjcuMC4wLjEiLCJsb2NhbGhvc3QiXSwic2lnIjoieVBmb1VCc0Z3TU9ZdUEyaEZkR0I2Y1FtZ0JITUtXcVdJSjB2NVRESXRZbFR3eDJMUmh6R2x0RUc3VXJ4X0s3b25ZMWRZb2Z2VGItN01ydFYyNDVyOWcifQ==');

    document.getElementById('save').addEventListener('click', () => {
            this.saveCount++
            this.chart.perspectives.save('View ' + this.saveCount)
            this.refreshList()
          })
    this.viewsSel.addEventListener('change', () => {
            var id = this.viewsSel.value
            if (!id) return
            var entry = this.chart.perspectives.list().filter(function (p) {
              return p.id === id
            })[0]
            if (entry) this.chart.perspectives.apply(entry.token, { animate: true })
          })
    document.getElementById('copy').addEventListener('click', () => {
            var url = this.chart.perspectives.toURL()
            this.linkEl.textContent = url
            if (navigator.clipboard)
              navigator.clipboard.writeText(url).catch(function () {})
          })
    document.getElementById('resetZoom').addEventListener('click', () => {
            this.chart.resetSeries(true, true)
          })
  }

  ngOnDestroy() {
    // no cleanup needed
  }
}