D-Net

import {Component, Input, Output, EventEmitter, ViewChild, ChangeDetectionStrategy, ViewEncapsulation} from '@angular/core';

import {Observable}       from 'rxjs/Observable';

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

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

import "rxjs/add/observable/zip";

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

import {ConfigurationService} from '../openaireLibrary/utils/configuration/configuration.service';

import {  SearchPublicationsService} from '../openaireLibrary/services/searchPublications.service';

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

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

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

import {  SearchDatasetsService} from '../openaireLibrary/services/searchDatasets.service';

import {  SearchOrganizationsService} from '../openaireLibrary/services/searchOrganizations.service';

import {  RefineFieldResultsService} from '../openaireLibrary/services/refineFieldResults.service';

import {  SearchFields} from '../openaireLibrary/utils/properties/searchFields';

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

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

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

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

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

@Component({

    selector: 'home',

    templateUrl: 'home.component.html',

})

export class HomeComponent {

  public piwiksub: any;

  public subfunders: any;

  public pageTitle = "OpenAIRE"

  public keyword:string = "";

  public searchFields:SearchFields = new SearchFields();

  public errorCodes:ErrorCodes = new ErrorCodes();

  public routerHelper:RouterHelper = new RouterHelper();

  public publicationsSize:any = null;

  public datasetsSize:any = null;

  public fundersSize:any = null;

  public projectsSize:any = null;

  public datasourcesSize:any = null;

  private numResults: number = 2;

  public fetchDataproviders : FetchDataproviders;

  showPublications:boolean= false;

  showDatasets:boolean= false;

  showProjects:boolean= false;

  showDataProviders:boolean= false;

  properties: EnvProperties;

public subPub;public subData;public subProjects;public subOrg; public subDataPr;

  constructor (

    private route: ActivatedRoute,

      private _router: Router,

      private _searchPublicationsService: SearchPublicationsService,

      private _searchDataprovidersService: SearchDataprovidersService,

      private _searchProjectsService: SearchProjectsService,

      private _searchDatasetsService: SearchDatasetsService,

      private _searchOrganizationsService: SearchOrganizationsService,

      private _refineFieldResultsService:RefineFieldResultsService,

      private location: Location, private _piwikService:PiwikService,

      private config: ConfigurationService, private _meta: Meta, private _title: Title

    ) {

          var description = "open access, research, scientific publication, European Commission, EC, FP7, ERC, Horizon 2020, H2020, search, projects ";

          var title = "OpenAIRE";

          this._title.setTitle(title);

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

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

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

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

  }

  public ngOnInit() {

    this.route.data

     .subscribe((data: { envSpecific: EnvProperties }) => {

        this.properties = data.envSpecific;

        if(this.properties!=null){

          var url = this.properties.baseLink+this._router.url;

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

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

            this.piwiksub = this._piwikService.trackView(this.properties, "OpenAIRE").subscribe();

          }

          this.config.getCommunityInformation(this.properties.adminToolsAPIURL, this.properties.adminToolsCommunity ).subscribe(data => {

                 var showEntity = {};

                 for(var i=0; i< data.entities.length; i++){

                   showEntity[""+data.entities[i]["pid"]+""] = data.entities[i]["isEnabled"];

                 }

                 this.showPublications =  showEntity["publication"];

                 this.showDatasets =   showEntity["dataset"];

                 this.showProjects =   showEntity["project"];

                  this.showDataProviders =   showEntity["datasource"];

                  this.getNumbers();

                  // if(this.showDataProviders) {

                  //   this.fetchDataproviders.getResultsForHome(this.numResults, this.properties);

                  // }

               });

            }

       });

  }

  public ngOnDestroy() {

    if(this.piwiksub){

      this.piwiksub.unsubscribe();

    }

    if(this.subfunders){

      this.subfunders.unsubscribe();

    }

        if(this.subPub){

          this.subPub.unsubscribe();

        }

        if(this.subData){

          this.subData.unsubscribe();

        }

    //     if(this.subProjects){

    //       this.subProjects.unsubscribe();

    //     }

    //     if(this.subOrg){

    //       this.subOrg.unsubscribe();

    //     }

        if(this.subDataPr){

          this.subDataPr.unsubscribe();

        }

  }

   private getNumbers() {

     if(this.showPublications){

       this.subPub = this._searchPublicationsService.numOfSearchPublications("", this.properties).subscribe(

               data => {

                  if(data && data != null && data > 0 ){

                      this.publicationsSize = NumberUtils.roundNumber(data);

                  }

               },

               err => {

         		    console.log(err);

          		 }

        );

      }

      if(this.showDatasets){

       this.subData = this._searchDatasetsService.numOfSearchDatasets("", this.properties).subscribe(

             data => {

               if(data && data != null && data > 0 ){

                   this.datasetsSize = NumberUtils.roundNumber(data);

               }

             },

             err => {

                 console.log(err);

               }

         );

       }

       if(this.showProjects){

         this.subfunders = this._refineFieldResultsService.getRefineFieldsResultsByEntityName(["funder"],"project", this.properties).subscribe(

           data => {

                if(data[0] && data[0] > 0 ){

                  this.projectsSize = NumberUtils.roundNumber(data[0]);

                }

                if(data[1].length > 0 && data[1][0].filterId == "funder" && data[1][0].values ){

                  this.fundersSize = NumberUtils.roundNumber(data[1][0].values.length);

                }

           },

           err => {

               console.log(err);

        });

      }

      if(this.showDataProviders){

        this.subDataPr = this._searchDataprovidersService.numOfSearchDataproviders("", this.properties).subscribe(

           data => {

             if(data && data != null && data > 0 ){

                 this.datasourcesSize = NumberUtils.roundNumber(data);

             }

           },

           err => {

               console.log(err);

           }

       );

     }

   }

}