D-Net

import {Component, ElementRef, OnDestroy, OnInit, ViewChild} from '@angular/core';

import {CountryUsageStat, UsageStat} from '../entities/usage-stat';

import {FormControl, FormGroup} from '@angular/forms';

import {Observable, Subscriber, Subscription} from 'rxjs';

import {UsageStatsService} from '../services/usage-stats.service';

import {map, startWith} from 'rxjs/operators';

import {countries} from '../services/countries';

import {DomSanitizer, Meta, SafeUrl, Title} from '@angular/platform-browser';

import {StringUtils} from '../openaireLibrary/utils/string-utils.class';

import {ActivatedRoute, Router} from '@angular/router';

import {NumberUtils} from '../openaireLibrary/utils/number-utils.class';

import {EnvProperties} from '../openaireLibrary/utils/properties/env-properties';

import {properties} from '../../environments/environment';

import {PiwikService} from '../openaireLibrary/utils/piwik/piwik.service';

import {SEOService} from '../openaireLibrary/sharedComponents/SEO/SEO.service';

@Component({

  selector: 'analytics',

  templateUrl: 'analytics.component.html',

  styleUrls: ['analytics.component.css'],

})

export class AnalyticsComponent implements OnInit, OnDestroy {

  public countryFb: FormGroup;

  public countries: Observable<string[]>;

  public country: string;

  public loading: boolean = true;

  public iframeLoading: boolean = true;

  public display: UsageStat | CountryUsageStat;

  public showSearch: boolean = false;

  public state: number = 0;

  private timeouts: any[] = [];

  public years = 0;

  public charts: SafeUrl[];

  @ViewChild('input') input: ElementRef;

  properties: EnvProperties = properties;

  description = "Track Countries Usage Activity. Worldwide Monthly Usage Events, Monthly Views & Downloads.";

  title = "OpenAIRE - UsageCounts | Analytics";

  subs: Subscription[] = [];

  searchSub: Subscription = null;

  constructor(private usageStatsService: UsageStatsService,

              private route: ActivatedRoute,

              private router: Router,

              private _title: Title, private _piwikService: PiwikService,

              private _meta: Meta, private seoService: SEOService,

              private sanitizer: DomSanitizer) {

  }

  ngOnInit() {

    this._title.setTitle(this.title);

    this._meta.updateTag({content: this.description}, "name='description'");

    this._meta.updateTag({content: this.description}, "property='og:description'");

    this._meta.updateTag({content: this.title}, "property='og:title'");

    this._title.setTitle(this.title);

    let url = this.properties.domain + this.properties.baseLink + this.router.url;

    this.seoService.createLinkForCanonicalURL(url, false);

    this._meta.updateTag({content: url}, "property='og:url'");

    if (this.properties.enablePiwikTrack && (typeof document !== 'undefined')) {

      this.subs.push(this._piwikService.trackView(this.properties, this.title).subscribe());

    }

    this.subs.push(this.route.fragment.subscribe(fragment => {

      setTimeout(() => {

        this.goTo(fragment);

      }, 100);

    }));

    this.init();

    this.search(true);

    for(let i = 0; i < 3; i++) {

      this.charts = [

        this.getSafeUrl('https://docs.google.com/spreadsheets/d/e/2PACX-1vQ-HejU11H1dMKa2MeIvLevnH0jtJUvduan3WMTjgDYCeq6g_WBPFBbZvg83hLuMv7XNyDQ3vHZWNYc/pubchart?oid=919355937&format=interactive'),

        this.getSafeUrl('https://docs.google.com/spreadsheets/d/e/2PACX-1vQ-HejU11H1dMKa2MeIvLevnH0jtJUvduan3WMTjgDYCeq6g_WBPFBbZvg83hLuMv7XNyDQ3vHZWNYc/pubchart?oid=1667183135&format=interactive'),

        this.getSafeUrl('https://docs.google.com/spreadsheets/d/e/2PACX-1vQ-HejU11H1dMKa2MeIvLevnH0jtJUvduan3WMTjgDYCeq6g_WBPFBbZvg83hLuMv7XNyDQ3vHZWNYc/pubchart?oid=2070534117&format=interactive')

      ]

    }

  }

  public ngOnDestroy() {

    this.subs.forEach(subscription => {

      if (subscription instanceof Subscriber) {

        subscription.unsubscribe();

      }

    });

    this.clearTimeouts();

  }

  private init() {

    this.countryFb = new FormGroup({

      country: new FormControl(null)

    });

    this.countries = this.countryFb.get('country').valueChanges

      .pipe(

        startWith(''),

        map(value => this._filter(value))

      );

  }

  changeYear(i: number) {

    if(!this.iframeLoading) {

      this.iframeLoading = true;

      this.years = i;

    }

  }

  onLoad() {

    this.iframeLoading = false;

  }

  roundUsageStat(stats: UsageStat) {

    if(stats) {

      stats.repositories = NumberUtils.roundNumber(Number.parseInt(stats.repositories));

      stats.total_downloads = NumberUtils.roundNumber(Number.parseInt(stats.total_downloads));

      stats.total_views = NumberUtils.roundNumber(Number.parseInt(stats.total_views));

    }

    return stats;

  }

  roundCountryUsageStat(stats: CountryUsageStat) {

    if(stats) {

      stats.total_repos = NumberUtils.roundNumber(Number.parseInt(stats.total_repos));

      stats.downloads = NumberUtils.roundNumber(Number.parseInt(stats.downloads));

      stats.views = NumberUtils.roundNumber(Number.parseInt(stats.views));

    }

    return stats;

  }

  public search(show: boolean = false) {

    this.country = this.countryFb.value.country;

    this.showSearch = show;

    this.loading = true;

    this.clearTimeouts();

    if (this.country && this.country.length > 0) {

      this.country = StringUtils.capitalize(this.country);

      this.searchSub = this.usageStatsService.getCountryMetrics(this.country).subscribe(stats => {

        this.display = this.roundCountryUsageStat(stats);

        this.loading = false;

        if (this.display) {

          this.state = 1;

          this.animation();

        }

      }, error => {

        this.display = null;

        this.loading = false;

      });

    } else {

      this.usageStatsService.getAllMetrics().subscribe(stats => {

        this.display = this.roundUsageStat(stats);

        this.loading = false;

        if (this.display) {

          this.state = 1;

          this.animation();

        }

      }, error => {

        this.display = null;

        this.loading = false;

      });

    }

  }

  private animation() {

    this.timeouts.push(setTimeout(() => {

      if (this.state != 3) {

        this.animation();

      }

      this.state++;

    }, 800));

  }

  private _filter(value: string): string[] {

    const filterValue = value.toLowerCase();

    return countries.map(value => value.name).filter(option => filterValue && option.toLowerCase().includes(filterValue));

  }

  toggle() {

    this.showSearch = !this.showSearch;

    if (this.showSearch) {

      setTimeout(() => { // this will make the execution after the above boolean has changed

        this.input.nativeElement.focus();

      }, 0);

    }

  }

  closeSearch() {

    this.showSearch = false;

  }

  clearTimeouts() {

    this.timeouts.forEach(timeout => {

      clearTimeout(timeout);

    });

    this.state = 0;

    if(this.searchSub instanceof Subscription) {

      this.searchSub.unsubscribe();

    }

  }

  reset() {

    this.clearTimeouts();

    if (this.state == 0) {

      this.init();

      this.showSearch = true;

      setTimeout(() => { // this will make the execution after the above boolean has changed

        this.input.nativeElement.focus();

      }, 0);

      this.search();

    }

  }

  goTo(id: string) {

    const yOffset = -100;

    const element = document.getElementById(id);

    if(element) {

      const y = element.getBoundingClientRect().top + window.pageYOffset + yOffset;

      window.scrollTo({top: y, behavior: 'smooth'});

    }

  }

  public getSafeUrl(url: string): SafeUrl {

    return this.sanitizer.bypassSecurityTrustResourceUrl(url);

  }

}