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: 'Coal',
              data: [44, 55, 41, 37, 22, 43, 21],
            },
            {
              name: 'Natural Gas',
              data: [53, 32, 33, 52, 13, 43, 32],
            },
            {
              name: 'Solar',
              data: [12, 17, 11, 9, 15, 11, 20],
            },
            {
              name: 'Wind',
              data: [9, 7, 5, 8, 6, 9, 4],
            },
          ],
          chart: {
            type: 'bar',
            height: 350,
            stacked: true,
          },
          plotOptions: {
            bar: {
              horizontal: true,
              barHeight: '60%',
            },
          },
          dataLabels: {
            enabled: false,
          },
          stroke: {
            width: 2,
          },
          title: {
            text: 'Electricity Generation by Source',
          },
          xaxis: {
            categories: [2019, 2020, 2021, 2022, 2023, 2024, 2025],
          },
          yaxis: {
            title: {
              text: undefined,
            },
          },
          tooltip: {
            shared: false,
            y: {
              formatter: (val) => {
                return val + ' TWh'
              },
            },
          },
          fill: {
            type: 'pattern',
            opacity: 1,
            pattern: {
              style: ['circles', 'slantedLines', 'verticalLines', 'horizontalLines'], // string or array of strings
            },
          },
          states: {
            hover: {
              filter: 'none',
            },
          },
          legend: {
            position: 'right',
            offsetY: 40,
          },
        };
  ngAfterViewInit() {
    (window as any).ApexCharts.setLicense('APEX-eyJpc3N1ZURhdGUiOiIyMDI2LTA0LTE2IiwiZXhwaXJ5RGF0ZSI6IjIwNTItMDQtMTciLCJwbGFuIjoiZW50ZXJwcmlzZSIsImRvbWFpbnMiOlsiYXBleGNoYXJ0cy5jb20iLCIxMjcuMC4wLjEiXX0=');
  }

  ngOnDestroy() {
    // no cleanup needed
  }
}