D-Net

import {Component, Input, ViewChild} from '@angular/core';

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

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

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

import {DataProviderInfo} from '../../utils/entities/dataProviderInfo';

import {DataProviderService} from './dataProvider.service';

import {FetchResearchResults} from '../../utils/fetchEntitiesClasses/fetchResearchResults.class';

import {SearchResearchResultsService} from '../../services/searchResearchResults.service';

import {FetchProjects} from '../../utils/fetchEntitiesClasses/fetchProjects.class';

import {SearchProjectsService} from '../../services/searchProjects.service';

import {FetchDataproviders} from '../../utils/fetchEntitiesClasses/fetchDataproviders.class';

import {SearchDataprovidersService} from '../../services/searchDataproviders.service';

import {ErrorCodes} from '../../utils/properties/errorCodes';

import {RouterHelper} from '../../utils/routerHelper.class';

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

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

import {HelperFunctions} from "../../utils/HelperFunctions.class";

import {HelperService} from "../../utils/helper/helper.service";

import {Location} from "@angular/common";

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

import {SearchResult} from "../../utils/entities/searchResult";

import {ResultPreview} from "../../utils/result-preview/result-preview";

import {IndexInfoService} from "../../utils/indexInfo.service";

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

import {Subscriber} from "rxjs";

@Component({

  selector: 'dataprovider',

  templateUrl: 'dataProvider.component.html',

})

export class DataProviderComponent {

  @Input() piwikSiteId = null;

  @Input() communityId = null;

  public dataProviderInfo: DataProviderInfo;

  public datasourceId: string;

  // Message variables

  public warningMessage = "";

  public errorMessage = "";

  public showLoading: boolean = true;

  // Metrics tab variables

  public metricsClicked: boolean;

  public viewsFrameUrl: string;

  public downloadsFrameUrl: string;

  public totalViews: number;

  public totalDownloads: number;

  public pageViews: number;

  // Statistics tab variables

  public statsClicked: boolean = false;

  @ViewChild('statisticsModal') statisticsModal;

  @ViewChild('relatedDatasourcesModal') relatedDatasourcesModal;

  // Variables for publications, research data, projects, content providers, related content providers tabs

  public fetchPublications: FetchResearchResults;

  public fetchDatasets: FetchResearchResults;

  public fetchSoftware: FetchResearchResults;

  public fetchOrps: FetchResearchResults;

  public fetchProjects: FetchProjects;

  public fetchDataproviders: FetchDataproviders;

  public fetchAggregatorsResults: FetchResearchResults;

  public searchNumber: number = 5;

  public aggregationStatusIsInitialized: boolean = false;

  public loadingRelatedDatasources: boolean = true;

  // Active tab variable for responsiveness - show tabs only if main request is completed

  public activeTab: string = "";

  public showTabs: boolean = false;

  public _numberOfTabs: number = 0;

  public tabsAreInitialized: boolean = false;

  public routerHelper: RouterHelper = new RouterHelper();

  public errorCodes: ErrorCodes = new ErrorCodes();

  public pageContents = null;

  public divContents = null;

  // Request results of each tab only the one time (first time tab is clicked)

  private reloadPublications: boolean = true;

  private reloadDatasets: boolean = true;

  private reloadSoftware: boolean = true;

  private reloadOrps: boolean = true;

  private reloadProjects: boolean = true;

  private reloadDataproviders: boolean = true;

  private reloadRelatedDatasources: boolean = true;

  // Organizations variables for view more/less functionality

  public thresholdOrganizations: number = 20;

  public showNumOrganizations: number = 20;

  // Subjects variables for view more/less functionality

  public thresholdSubjects: number = 20;

  public showNumSubjects: number = 20;

  // Description variables for view more/less functionality

  public thresholdDescription: number = 670;

  public showNumDescription: number = 670;

  public indexUpdateDate: Date;

  public showFeedback: boolean = false;

  public feedbackFields: string [] = ['Name', 'Organizations', 'Country', 'Other'];

  subscriptions = [];

  properties: EnvProperties = properties;

  constructor(private _dataproviderService: DataProviderService,

              private _piwikService: PiwikService,

              private route: ActivatedRoute,

              private _meta: Meta,

              private _title: Title,

              private _router: Router,

              private _searchResearchResultsService: SearchResearchResultsService,

              private _searchProjectsService: SearchProjectsService,

              private _searchDataprovidersService: SearchDataprovidersService,

              private seoService: SEOService,

              private helper: HelperService,

              private _location: Location,

              private indexInfoService: IndexInfoService) {

    this.fetchPublications = new FetchResearchResults(this._searchResearchResultsService);

    this.fetchDatasets = new FetchResearchResults(this._searchResearchResultsService);

    this.fetchSoftware = new FetchResearchResults(this._searchResearchResultsService);

    this.fetchOrps = new FetchResearchResults(this._searchResearchResultsService);

    this.fetchProjects = new FetchProjects(this._searchProjectsService);

    this.fetchDataproviders = new FetchDataproviders(this._searchDataprovidersService);

  }

  ngOnInit() {

    if (typeof document !== 'undefined') {

      this.subscriptions.push(this.indexInfoService.getLastIndexDate(this.properties).subscribe(lastIndexUpdate => {

        if (lastIndexUpdate) {

          this.indexUpdateDate = new Date(lastIndexUpdate);

        }

      }));

    }

    //this.getDivContents();

    this.getPageContents();

    this.updateUrl(this.properties.domain + this.properties.baseLink +  this._router.url);

    this.subscriptions.push(this.route.queryParams.subscribe(data => {

      this.updateTitle("Content provider");

      this.updateDescription("");

      this.datasourceId = data['datasourceId'];

      if (this.datasourceId && StringUtils.isOpenAIREID(this.datasourceId)) {

        this.initializeValues();

        this.getDataProviderInfo(this.datasourceId);

      } else {

        this.showLoading = false;

        this._router.navigate(['/error'], {

          queryParams: {

            "page": this._location.path(true),

            "page_type": "dataprovider"

          }

        });

      }

      HelperFunctions.scroll();

    }));

  }

  public initializeValues() {

    this._numberOfTabs = 0;

    this.tabsAreInitialized = false;

    this.dataProviderInfo = null;

    this.aggregationStatusIsInitialized = false;

    this.fetchProjects.searchUtils.status = this.errorCodes.LOADING;

    this.fetchProjects.searchUtils.totalResults = 0;

    this.fetchDataproviders.searchUtils.status = this.errorCodes.LOADING;

    this.fetchDataproviders.searchUtils.totalResults = 0;

    this.fetchPublications.searchUtils.status = this.errorCodes.LOADING;

    this.fetchPublications.searchUtils.totalResults = 0;

    this.fetchDatasets.searchUtils.status = this.errorCodes.LOADING;

    this.fetchDatasets.searchUtils.totalResults = 0;

    this.fetchSoftware.searchUtils.status = this.errorCodes.LOADING;

    this.fetchSoftware.searchUtils.totalResults = 0;

    this.fetchOrps.searchUtils.status = this.errorCodes.LOADING;

    this.fetchOrps.searchUtils.totalResults = 0;

    this.statsClicked = false;

    this.metricsClicked = false;

  }

  private getPageContents() {

    this.subscriptions.push(this.helper.getPageHelpContents(this.properties, this.communityId, this._router.url).subscribe(contents => {

      this.pageContents = contents;

    }));

  }

  private getDivContents() {

    this.subscriptions.push(this.helper.getDivHelpContents(this.properties, this.communityId, this._router.url).subscribe(contents => {

      this.divContents = contents;

    }));

  }

  ngOnDestroy() {

    this.subscriptions.forEach(subscription => {

      if (subscription instanceof Subscriber) {

        subscription.unsubscribe();

      }

    });

    this.fetchDatasets.clearSubscriptions();

    this.fetchPublications.clearSubscriptions();

    this.fetchSoftware.clearSubscriptions();

    this.fetchPublications.clearSubscriptions();

    this.fetchDataproviders.clearSubscriptions();

    this.fetchProjects.clearSubscriptions();

  }

  private getDataProviderInfo(id: string) {

    this.warningMessage = '';

    this.errorMessage = "";

    this.showLoading = true;

    this.dataProviderInfo = null;

    this.showTabs = false;

    if (this.datasourceId == null || this.datasourceId == '') {

      this.showLoading = false;

      this.warningMessage = "No valid datasource id";

    } else {

      this.subscriptions.push(this._dataproviderService.getDataproviderInfo(this.datasourceId, this.properties).subscribe(

        data => {

          this.dataProviderInfo = data;

          this.seoService.createLinkForCanonicalURL(this.properties.domain +this.properties.baseLink +  this._router.url);

          if (typeof document !== 'undefined') {

            this.getDataProviderAggregationStatus(this.dataProviderInfo.originalId);

          } else {

            this.aggregationStatusIsInitialized = true;

          }

          if (typeof document !== 'undefined') {

            this.initTabs();

          }

          this.showTabs = true;

          this.updateTitle(this.dataProviderInfo.title.name);

          this.updateDescription("Content provider, " + this.dataProviderInfo.title.name);

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

            this.subscriptions.push(this._piwikService.trackView(this.properties, this.dataProviderInfo.title.name, this.piwikSiteId).subscribe());

          }

          this.showLoading = false;

          // if (this.dataProviderInfo.tabs != undefined && this.dataProviderInfo.tabs.length > 0) {

          //   this.activeTab = this.dataProviderInfo.tabs[0].name;

          // }

        },

        err => {

          //console.log(err);

          this.handleError("Error getting content provider for id: " + this.datasourceId, err);

          if (err.status == 404) {

            this._router.navigate(['/error'], {

              queryParams: {

                "page": this._location.path(true),

                "page_type": "dataprovider"

              }

            });

          }

          this.errorMessage = 'No dataProvider found';

          this.showLoading = false;

          this.seoService.createLinkForCanonicalURL(this.properties.domain + this.properties.baseLink + this.properties.searchLinkToDataProviders);

        }

      ));

    }

  }

  private getDataProviderAggregationStatus(originalId: string) {

    this.subscriptions.push(this._dataproviderService.getDataproviderAggregationStatus(originalId, this.properties).subscribe(

      data => {

        this.dataProviderInfo.aggregationStatus = data;

      },

      err => {

        //console.log(err);

        this.handleError("Error getting content provider aggregation status for id: " + this.datasourceId, err);

      },

      () => {

        this.aggregationStatusIsInitialized = true;

      }

    ));

  }

  private updateDescription(description: string) {

    this._meta.updateTag({content: description.substring(0, 160)}, "name='description'");

    this._meta.updateTag({content: description.substring(0, 160)}, "property='og:description'");

  }

  private updateTitle(title: string) {

    var _prefix = "";

    // if(this.communityId) {

    //   _prefix = "OpenAIRE | ";

    // }

    // var _title = _prefix + ((title.length > 50) ? title.substring(0, 50) : title);

    this._title.setTitle(title);

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

  }

  private updateUrl(url: string) {

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

  }

  private initTabs() {

    //if (this.dataProviderInfo.tabs != undefined && this.dataProviderInfo.tabs.length > 0) {

    this.reloadPublications = true;

    this.reloadDatasets = true;

    this.reloadSoftware = true;

    this.reloadOrps = true;

    this.reloadProjects = true;

    this.reloadDataproviders = true;

    this.reloadRelatedDatasources = true;

    this.statsClicked = false;

    //this.search(this.dataProviderInfo.tabs[0].content, 1, 10);

    this.count(1, 0);

    this.metricsClicked = false;

    this.viewsFrameUrl = this.properties.framesAPIURL + 'merge.php?com=query&data=[{"query":"dtsrcRepoViews","dtsrcName":"' + this.datasourceId + '","table":"","fields":[{"fld":"sum","agg":"sum","type":"column","yaxis":1,"c":false}],"xaxis":{"name":"month","agg":"sum"},"group":"","color":"","type":"chart","size":200,"sort":"xaxis","xStyle":{"r":-30,"s":"6","l":"-","ft":"-","wt":"-"},"title":"","subtitle":"","xaxistitle":"","yaxisheaders":["Monthly views"],"generalxaxis":"","theme":0,"in":[]}]&info_types=["column"]&stacking=&steps=false&fontFamily=Courier&spacing=[5,0,0,0]&style=[{"color":"rgba(0, 0, 0, 1)","size":"18"},{"color":"rgba(0, 0, 0, 1)","size":"18"},{"color":"000000","size":""},{"color":"000000","size":""}]&backgroundColor=rgba(255,255,255,1)&colors[]=rgba(124, 181, 236, 1)&colors[]=rgba(67, 67, 72, 1)&colors[]=rgba(144, 237, 125, 1)&colors[]=rgba(247, 163, 92, 1)&colors[]=rgba(128, 133, 233, 1)&colors[]=rgba(241, 92, 128, 1)&colors[]=rgba(228, 211, 84, 1)&colors[]=rgba(43, 144, 143, 1)&colors[]=rgba(244, 91, 91, 1)&colors[]=rgba(145, 232, 225, 1)&xlinew=0&ylinew=1&legends=true&tooltips=true&persistent=false';

    this.downloadsFrameUrl = this.properties.framesAPIURL + 'merge.php?com=query&data=[{"query":"dtsrcRepoDownloads","dtsrcName":"' + this.datasourceId + '","table":"","fields":[{"fld":"sum","agg":"sum","type":"column","yaxis":1,"c":false}],"xaxis":{"name":"month","agg":"sum"},"group":"","color":"","type":"chart","size":200,"sort":"xaxis","xStyle":{"r":-30,"s":"6","l":"-","ft":"-","wt":"-"},"title":"","subtitle":"","xaxistitle":"","yaxisheaders":["Monthly downloads"],"generalxaxis":"","theme":0,"in":[]}]&info_types=["column"]&stacking=&steps=false&fontFamily=Courier&spacing=[5,0,0,0]&style=[{"color":"rgba(0, 0, 0, 1)","size":"18"},{"color":"rgba(0, 0, 0, 1)","size":"18"},{"color":"000000","size":""},{"color":"000000","size":""}]&backgroundColor=rgba(255,255,255,1)&colors[]=rgba(124, 181, 236, 1)&colors[]=rgba(67, 67, 72, 1)&colors[]=rgba(144, 237, 125, 1)&colors[]=rgba(247, 163, 92, 1)&colors[]=rgba(128, 133, 233, 1)&colors[]=rgba(241, 92, 128, 1)&colors[]=rgba(228, 211, 84, 1)&colors[]=rgba(43, 144, 143, 1)&colors[]=rgba(244, 91, 91, 1)&colors[]=rgba(145, 232, 225, 1)&xlinew=0&ylinew=1&legends=true&tooltips=true&persistent=false';

    this.fetchAggregatorsResults = new FetchResearchResults(this._searchResearchResultsService);

  }

  public getParamsForSearchLink(type: string = "") {

    if (type) {

      return this.routerHelper.createQueryParams(['f0', 'fv0', 'f1', 'fv1', 'type', 'qf', 'sortBy'], ["collectedfromdatasourceid", this.datasourceId, "resulthostingdatasourceid,or", this.datasourceId, type, "false", 'resultdateofacceptance,descending']);

    } else {

      return this.routerHelper.createQueryParams(['f0', 'fv0', 'f1', 'fv1'], ["collectedfromdatasourceid", this.datasourceId, "resulthostingdatasourceid,or", this.datasourceId]);

    }

  }

  private count(page: number, size: number) {

    this.countPublications(page, size);

    this.countDatasets(page, size);

    this.countSoftware(page, size);

    this.countOrps(page, size);

    this.countProjects(page, size);

    this.countDatasources(page, size);

  }

  public search(content: string, page: number, size: number) {

    if (content == 'publicationsTab') {

      this.searchPublications(page, size);

    } else if (content == 'datasetsTab') {

      this.searchDatasets(page, size);

    } else if (content == 'softwareTab') {

      this.searchSoftware(page, size);

    } else if (content == 'orpsTab') {

      this.searchOrps(page, size);

    } else if (content == 'projectsTab') {

      this.searchProjects(page, size);

    } else if (content == 'datasourcesTab') {

      this.searchDatasources(page, size);

    } else if (content == 'relatedDatasourcesTab') {

      this.searchRelatedDatasources(1, 0);

    } else if (content == 'metricsTab') {

      this.metricsClicked = true;

    } else if (content == 'statisticsTab') {

      this.statsClicked = !this.statsClicked;

    }

  }

  private searchPublications(page: number, size: number) {

    if (this.reloadPublications &&

      (this.fetchPublications.searchUtils.status == this.errorCodes.LOADING ||

        (this.fetchPublications.searchUtils.status == this.errorCodes.DONE && this.fetchPublications.searchUtils.totalResults > 0)

      )

    ) {

      this.fetchPublications.getResultsForDataproviders("publication", this.datasourceId, this.dataProviderInfo.resultsBy, page, size, this.properties);

    }

    this.reloadPublications = false;

  }

  private countPublications(page: number, size: number) {

    this.fetchPublications.getResultsForDataproviders("publication", this.datasourceId, this.dataProviderInfo.resultsBy, page, size, this.properties);

  }

  private searchDatasets(page: number, size: number) {

    if (this.reloadDatasets &&

      (this.fetchDatasets.searchUtils.status == this.errorCodes.LOADING ||

        (this.fetchDatasets.searchUtils.status == this.errorCodes.DONE && this.fetchDatasets.searchUtils.totalResults > 0)

      )

    ) {

      this.fetchDatasets.getResultsForDataproviders("dataset", this.datasourceId, this.dataProviderInfo.resultsBy, page, size, this.properties);

    }

    this.reloadDatasets = false;

  }

  private countDatasets(page: number, size: number) {

    this.fetchDatasets.getResultsForDataproviders("dataset", this.datasourceId, this.dataProviderInfo.resultsBy, page, size, this.properties);

  }

  private searchSoftware(page: number, size: number) {

    if (this.reloadSoftware &&

      (this.fetchSoftware.searchUtils.status == this.errorCodes.LOADING ||

        (this.fetchSoftware.searchUtils.status == this.errorCodes.DONE && this.fetchSoftware.searchUtils.totalResults > 0)

      )

    ) {

      this.fetchSoftware.getResultsForDataproviders("software", this.datasourceId, this.dataProviderInfo.resultsBy, page, size, this.properties);

    }

    this.reloadSoftware = false;

  }

  private countSoftware(page: number, size: number) {

    this.fetchSoftware.getResultsForDataproviders("software", this.datasourceId, this.dataProviderInfo.resultsBy, page, size, this.properties);

  }

  private searchOrps(page: number, size: number) {

    if (this.reloadOrps &&

      (this.fetchOrps.searchUtils.status == this.errorCodes.LOADING ||

        (this.fetchOrps.searchUtils.status == this.errorCodes.DONE && this.fetchOrps.searchUtils.totalResults > 0)

      )

    ) {

      this.fetchOrps.getResultsForDataproviders("other", this.datasourceId, this.dataProviderInfo.resultsBy, page, size, this.properties);

    }

    this.reloadOrps = false;

  }

  private countOrps(page: number, size: number) {

    this.fetchOrps.getResultsForDataproviders("other", this.datasourceId, this.dataProviderInfo.resultsBy, page, size, this.properties);

  }

  private searchProjects(page: number, size: number) {

    if (this.reloadProjects &&

      (this.fetchProjects.searchUtils.status == this.errorCodes.LOADING ||

        (this.fetchProjects.searchUtils.status == this.errorCodes.DONE && this.fetchProjects.searchUtils.totalResults > 0)

      )

    ) {

      this.fetchProjects.getResultsForDataproviders(this.datasourceId, page, size, this.properties);

    }

    this.reloadProjects = false;

  }

  private countProjects(page: number, size: number) {

    this.fetchProjects.getResultsForDataproviders(this.datasourceId, page, size, this.properties);

  }

  private searchDatasources(page: number, size: number) {

    if (this.reloadDataproviders &&

      (this.fetchDataproviders.searchUtils.status == this.errorCodes.LOADING ||

        (this.fetchDataproviders.searchUtils.status == this.errorCodes.DONE && this.fetchDataproviders.searchUtils.totalResults > 0)

      )

    ) {

      this.fetchDataproviders.getResultsForDataproviders(this.datasourceId, page, size, this.properties);

    }

    this.reloadDataproviders = false;

  }

  private countDatasources(page: number, size: number) {

    this.fetchDataproviders.getResultsForDataproviders(this.datasourceId, page, size, this.properties);

  }

  private searchRelatedDatasources(page: number, size: number) {

    // Currently no counting is done for this tab. Following condition is always false

    // if (this.reloadRelatedDatasources &&

    //   (this.fetchAggregatorsPublications.searchUtils.status == this.errorCodes.LOADING ||

    //     this.fetchAggregatorsPublications.searchUtils.status == this.errorCodes.DONE)

    //   &&

    //   (this.fetchAggregatorsDatasets.searchUtils.status == this.errorCodes.LOADING ||

    //     this.fetchAggregatorsDatasets.searchUtils.status == this.errorCodes.DONE)

    //   &&

    //   (this.fetchAggregatorsSoftware.searchUtils.status == this.errorCodes.LOADING ||

    //     this.fetchAggregatorsSoftware.searchUtils.status == this.errorCodes.DONE)

    //   &&

    //   (this.fetchAggregatorsOrps.searchUtils.status == this.errorCodes.LOADING ||

    //     this.fetchAggregatorsOrps.searchUtils.status == this.errorCodes.DONE)

    // ) {

    //   this.relatedDatasourcesSub = observableMerge(this.fetchAggregatorsPublications.requestComplete, this.fetchAggregatorsDatasets.requestComplete, this.fetchAggregatorsSoftware.requestComplete, this.fetchAggregatorsOrps.requestComplete)

    //     .subscribe(

    //       data => {

    //       },

    //       err => {

    //       },

    //       () => {

    //         this.preprocessRelatedDatasources();

    //       }

    //     );

    //

    //   this.fetchAggregatorsPublications.getAggregatorResults("publication", this.datasourceId, page, size, this.properties);

    //   this.fetchAggregatorsDatasets.getAggregatorResults("dataset", this.datasourceId, page, size, this.properties);

    //   this.fetchAggregatorsSoftware.getAggregatorResults("software", this.datasourceId, page, size, this.properties);

    //   this.fetchAggregatorsOrps.getAggregatorResults("other", this.datasourceId, page, size, this.properties);

    if (this.reloadRelatedDatasources &&

      (this.fetchAggregatorsResults.searchUtils.status == this.errorCodes.LOADING ||

        (this.fetchAggregatorsResults.searchUtils.status == this.errorCodes.DONE && this.fetchAggregatorsResults.searchUtils.totalResults > 0)

      )

    ) {

      this.subscriptions.push(this.fetchAggregatorsResults.requestComplete.subscribe(

        data => {

        },

        err => {

        },

        () => {

          //this.preprocessRelatedDatasources();

          this.dataProviderInfo.relatedDatasources = this.fetchAggregatorsResults.results;

          this.loadingRelatedDatasources = false;

        }

      ));

      this.fetchAggregatorsResults.getAggregatorResults("results", this.datasourceId, page, size, this.properties);

    } else {

      this.loadingRelatedDatasources = false;

    }

    this.reloadRelatedDatasources = false;

  }

  private countRelatedDatasources(page: number, size: number) {

    this.fetchAggregatorsResults.getAggregatorResults("results", this.datasourceId, page, size, this.properties);

  }

  public metricsResults($event) {

    this.totalViews = $event.totalViews;

    this.totalDownloads = $event.totalDownloads;

    this.pageViews = $event.pageViews;

  }

  public get hasMetrics(): boolean {

    return !(this.totalViews && this.totalDownloads && this.pageViews) || this.totalViews > 0 || this.totalDownloads > 0 || this.pageViews > 0;

  }

  public openStatistics() {

    this.statsClicked = true;

    this.statisticsModal.cancelButton = false;

    this.statisticsModal.okButton = false;

    this.statisticsModal.alertTitle = "Statistics of";

    this.statisticsModal.open();

  }

  public openRelatedDatasources() {

    this.searchRelatedDatasources(1, 0);

    this.relatedDatasourcesModal.cancelButton = false;

    this.relatedDatasourcesModal.okButton = false;

    this.relatedDatasourcesModal.alertTitle = "Related content providers of";

    this.relatedDatasourcesModal.open();

  }

  public scroll() {

    HelperFunctions.scroll();

  }

  public removeUnknown(array: string[]): string[] {

    return array.filter(value => value.toLowerCase() !== 'unknown');

  }

  private handleError(message: string, error) {

    console.error("Content Provider Landing Page: " + message, error);

  }

  private getEntityName(entityType: string, plural: boolean, full: boolean): string {

    if (entityType == "publication") {

      return "publication" + (plural ? "s" : "");

    } else if (entityType == "dataset") {

      return (full ? "research data" : ("dataset" + (plural ? "s" : "")));

    } else if (entityType == "software") {

      return "software";

    } else if (entityType == "other") {

      return (full ? ("other research product" + (plural ? "s" : "")) : "other");

    } else if (entityType == "dataprovider") {

      return (full ? ("content provider" + (plural ? "s" : "")) : "dataprovider" + (plural ? "s" : ""));

    } else {

      return entityType + (plural ? "s" : "");

    }

  }

  public getResultPreview(result: SearchResult, type: string): ResultPreview {

    return ResultPreview.searchResultConvert(result, type);

  }

  public onSelectActiveTab(activeTabId) {

    if (this.activeTab != "activaTabId") {   // tab really changed

      if (activeTabId == 'summary') {

        this.activeTab = 'summary';

      } else if (activeTabId == 'publications') {

        this.activeTab = 'publications';

        this.searchPublications(1, this.searchNumber);

      } else if (activeTabId == 'datasets') {

        this.activeTab = 'datasets';

        this.searchDatasets(1, this.searchNumber);

      } else if (activeTabId == 'software') {

        this.activeTab = 'software';

        this.searchSoftware(1, this.searchNumber);

      } else if (activeTabId == 'other') {

        this.activeTab = "other";

        this.searchOrps(1, this.searchNumber);

      } else if (activeTabId == 'projects') {

        this.activeTab = "projects";

        this.searchProjects(1, this.searchNumber);

      } else if (activeTabId == 'datasources') {

        this.activeTab = "datasources";

        this.searchDatasources(1, this.searchNumber);

      } else if (activeTabId == 'relatedDatasources') {

        this.activeTab = "relatedDatasources";

        this.searchRelatedDatasources(1, this.searchNumber);

      } else if (activeTabId == 'statistics') {

        this.activeTab = 'statistics';

        this.statsClicked = true;

      }

    }

  }

  public get hasAggregationStatusInfo(): boolean {

    return (!!this.dataProviderInfo.aggregationStatus &&

      ((!!this.dataProviderInfo.aggregationStatus.fulltexts && parseInt(this.dataProviderInfo.aggregationStatus.fulltexts) != -1)

        || (!!this.dataProviderInfo.aggregationStatus.fundedContent && parseInt(this.dataProviderInfo.aggregationStatus.fundedContent) != -1)

        || !!this.dataProviderInfo.aggregationStatus.lastUpdateDate));

  }

  public get hasJournalInfo(): boolean {

    return (!!this.dataProviderInfo.journal && (

      !!this.dataProviderInfo.journal['journal'] || !!this.dataProviderInfo.journal['issn'] ||

      !!this.dataProviderInfo.journal['lissn'] || !!this.dataProviderInfo.journal['eissn'] ||

      !!this.dataProviderInfo.journal['volume'] || !!this.dataProviderInfo.journal['issue'] ||

      !!this.dataProviderInfo.journal['start_page'] || !!this.dataProviderInfo.journal['end_page']));

    //return true;

  }

  public get hasPrimaryInfo(): boolean {

    return !!this.dataProviderInfo && (

      !!this.dataProviderInfo.description ||

      this.hasJournalInfo ||

      //this.hasAggregationStatusInfo ||

      !!this.dataProviderInfo.countries ||

      (!!this.dataProviderInfo.subjects && this.dataProviderInfo.subjects.length > 0));

  }

  public get hasSecondaryInfo(): boolean {

    return !!this.dataProviderInfo && (

      (!!this.dataProviderInfo.organizations && this.dataProviderInfo.organizations.length > 0)

      || !!this.dataProviderInfo.oaiPmhURL || !!this.dataProviderInfo.openDoarId || !!this.dataProviderInfo.r3DataId

    );

  }

}