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 TICKINTERVAL: any = 1000;

  private XAXISRANGE: any = 29 * this.TICKINTERVAL;

  private lastX: any = new Date().getTime() - this.XAXISRANGE;

  private lastY: any = 50;

  private data: any = [];

  private nextValue = (): any => {
          this.lastY = Math.max(5, Math.min(95, this.lastY + (Math.random() - 0.5) * 20))
          return Math.round(this.lastY)
        };

  private intervalRuns: any = 0;

  private interval: any;

  public chartOptions: Partial<ChartOptions> = {
          series: [
            {
              name: 'Signal',
              data: this.data.slice(),
            },
          ],
          chart: {
            id: 'realtime-streaming',
            height: 350,
            type: 'line',
            streaming: {
              enabled: true,
            },
            animations: {
              dynamicAnimation: {
                speed: 1000,
              },
            },
            toolbar: {
              show: false,
            },
            zoom: {
              enabled: false,
            },
          },
          dataLabels: {
            enabled: false,
          },
          stroke: {
            curve: 'smooth',
          },
          title: {
            text: 'Streaming (bounded memory + linear scroll)',
            align: 'left',
          },
          markers: {
            size: 0,
          },
          xaxis: {
            type: 'datetime',
            range: this.XAXISRANGE,
          },
          yaxis: {
            min: 0,
            max: 100,
          },
          legend: {
            show: false,
          },
        };
  ngAfterViewInit() {
    (window as any).ApexCharts.setLicense('APEX-eyJpc3N1ZURhdGUiOiIyMDI2LTA0LTE2IiwiZXhwaXJ5RGF0ZSI6IjIwNTItMDQtMTciLCJwbGFuIjoiZW50ZXJwcmlzZSIsImRvbWFpbnMiOlsiYXBleGNoYXJ0cy5jb20iLCIxMjcuMC4wLjEiXX0=');
    while (this.data.length < 30) {
            this.data.push({ x: this.lastX, y: this.nextValue() })
            this.lastX += this.TICKINTERVAL
          }

    this.interval = window.setInterval(() => {
            this.intervalRuns++

            this.lastX += this.TICKINTERVAL
            this.chart.appendData([
              {
                data: [{ x: this.lastX, y: this.nextValue() }],
              },
            ])

            if (this.intervalRuns === 2 && (window as any).isATest === true) {
              clearInterval(this.interval)
            }
          }, this.TICKINTERVAL)
  }

  ngOnDestroy() {
    if (this.interval) clearInterval(this.interval);
  }
}