import { Component, ChangeDetectionStrategy, OnInit, ChangeDetectorRef } from '@angular/core';
import { getThemes } from '@covalent/echarts/base';
import { ChartThemeSelectorService } from '../../../../../../utilities/chart-theme';

@Component({
  selector: 'scatter-demo-basic',
  styleUrls: ['./scatter-demo-basic.component.scss'],
  templateUrl: './scatter-demo-basic.component.html',
  changeDetection: ChangeDetectionStrategy.OnPush,
})
export class ScatterDemoBasicComponent implements OnInit {
  themes: string[] = getThemes();
  selectedTheme: string;

  config: any = {
    tooltip: {
      show: true,
    },
    legend: {
      right: 10,
      data: ['1990', '2015'],
    },
    xAxis: [{ show: true }],
    yAxis: [{ show: true }],
    series: [
      {
        name: '1990',
        data: [
          [28604, 77, 17096869, 'Australia', 1990],
          [31163, 77.4, 27662440, 'Canada', 1990],
          [1516, 68, 1154605773, 'China', 1990],
          [13670, 74.7, 10582082, 'Cuba', 1990],
          [28599, 75, 4986705, 'Finland', 1990],
          [29476, 77.1, 56943299, 'France', 1990],
          [31476, 75.4, 78958237, 'Germany', 1990],
          [28666, 78.1, 254830, 'Iceland', 1990],
          [1777, 57.7, 870601776, 'India', 1990],
          [29550, 79.1, 122249285, 'Japan', 1990],
          [2076, 67.9, 20194354, 'North Korea', 1990],
          [12087, 72, 42972254, 'South Korea', 1990],
          [24021, 75.4, 3397534, 'New Zealand', 1990],
          [43296, 76.8, 4240375, 'Norway', 1990],
          [10088, 70.8, 38195258, 'Poland', 1990],
          [19349, 69.6, 147568552, 'Russia', 1990],
          [10670, 67.3, 53994605, 'Turkey', 1990],
          [26424, 75.7, 57110117, 'United Kingdom', 1990],
          [37062, 75.4, 252847810, 'United States', 1990],
        ],
        type: 'scatter',
        itemStyle: {
          opacity: 0.75,
          color: '#007373',
        },
        symbolSize(data: number[]): number {
          return Math.sqrt(data[2]) / 5e2;
        },
        label: {
          show: true,
          formatter(param: any): any {
            return param.data[3];
          },
          position: 'top',
        },
      },
      {
        name: '2015',
        data: [
          [44056, 81.8, 23968973, 'Australia', 2015],
          [43294, 81.7, 35939927, 'Canada', 2015],
          [13334, 76.9, 1376048943, 'China', 2015],
          [21291, 78.5, 11389562, 'Cuba', 2015],
          [38923, 80.8, 5503457, 'Finland', 2015],
          [37599, 81.9, 64395345, 'France', 2015],
          [44053, 81.1, 80688545, 'Germany', 2015],
          [42182, 82.8, 329425, 'Iceland', 2015],
          [5903, 66.8, 1311050527, 'India', 2015],
          [36162, 83.5, 126573481, 'Japan', 2015],
          [1390, 71.4, 25155317, 'North Korea', 2015],
          [34644, 80.7, 50293439, 'South Korea', 2015],
          [34186, 80.6, 4528526, 'New Zealand', 2015],
          [64304, 81.6, 5210967, 'Norway', 2015],
          [24787, 77.3, 38611794, 'Poland', 2015],
          [23038, 73.13, 143456918, 'Russia', 2015],
          [19360, 76.5, 78665830, 'Turkey', 2015],
          [38225, 81.4, 64715810, 'United Kingdom', 2015],
          [53354, 79.1, 321773631, 'United States', 2015],
        ],
        type: 'scatter',
        itemStyle: {
          opacity: 0.75,
          color: '#1B98C6',
        },
        symbolSize(data: number[]): number {
          return Math.sqrt(data[2]) / 5e2;
        },
        label: {
          show: true,
          formatter(param: any): any {
            return param.data[3];
          },
          position: 'top',
        },
      },
    ],
  };

  constructor(private _cdr: ChangeDetectorRef, public themeSelector: ChartThemeSelectorService) {}

  async 
(): Promise<void> {
    this.selectedTheme = this.themeSelector.selected;
    this._cdr.markForCheck();
  }

  selectChartTheme(theme: string): void {
    this.themeSelector.select(theme);
  }

  symbolSize(data: number[]): number {
    return Math.sqrt(data[2]) / 5e2;
  }
}

ngOnInit