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;
  public chartOptions: Partial<ChartOptions> = {
          series: [
            {
              name: 'Jan',
              data: generateData(18, { min: 0, max: 90 }),
            },
            {
              name: 'Feb',
              data: generateData(18, { min: 10, max: 90 }),
            },
            {
              name: 'Mar',
              data: generateData(18, { min: 20, max: 100 }),
            },
            {
              name: 'Apr',
              data: generateData(18, { min: 10, max: 100 }),
            },
            {
              name: 'May',
              data: generateData(18, { min: 0, max: 50 }),
            },
            {
              name: 'Jun',
              data: generateData(18, { min: 0, max: 90 }),
            },
            {
              name: 'Jul',
              data: generateData(18, { min: 0, max: 90 }),
            },
            {
              name: 'Aug',
              data: generateData(18, { min: 0, max: 90 }),
            },
            {
              name: 'Sep',
              data: generateData(18, { min: 0, max: 90 }),
            },
            {
              name: 'Oct',
              data: generateData(18, { min: 0, max: 90 }),
            },
            {
              name: 'Nov',
              data: generateData(18, { min: 0, max: 90 }),
            },
            {
              name: 'Dec',
              data: generateData(18, { min: 0, max: 90 }),
            },
          ],
          chart: {
            height: 380,
            type: 'heatmap',
          },
          plotOptions: {
            heatmap: {
              shadeIntensity: 0.5,
              radius: 2,
              useFillColorAsStroke: false,
              colorScale: {
                // Continuous gradient legend replaces the default categorical legend.
                // The arrow tracks the hovered cell's value along the spectrum and
                // automatically reorients based on legend.position.
                gradientLegend: {
                  enabled: true,
                  width: '75%',
                  thickness: 14,
                  showHoverValue: true,
                },
              },
            },
          },
          colors: ['#008FFB'],
          dataLabels: {
            enabled: false,
          },
          stroke: {
            width: 1,
          },
          legend: {
            position: 'right',
          },
          title: {
            text: 'Monthly Rainfall (mm) — continuous gradient legend',
          },
        };
  ngAfterViewInit() {
    (window as any).ApexCharts.setLicense('APEX-eyJpc3N1ZURhdGUiOiIyMDI2LTA0LTE2IiwiZXhwaXJ5RGF0ZSI6IjIwNTItMDQtMTciLCJwbGFuIjoiZW50ZXJwcmlzZSIsImRvbWFpbnMiOlsiYXBleGNoYXJ0cy5jb20iLCIxMjcuMC4wLjEiXX0=');
  }

  ngOnDestroy() {
    // no cleanup needed
  }
}