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 { Meta, MetaDefinition} from '../../../angular2-meta';

import { FetchPublications } from '../../utils/fetchEntitiesClasses/fetchPublications.class';

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

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

import { FetchDatasets } from '../../utils/fetchEntitiesClasses/fetchDatasets.class';

import { FetchOrganizations } from '../../utils/fetchEntitiesClasses/fetchOrganizations.class';

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

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

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

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

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

import {OpenaireProperties} from '../../utils/properties/openaireProperties';

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

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

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

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

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

@Component({

  changeDetection: ChangeDetectionStrategy.Default,

  encapsulation: ViewEncapsulation.Emulated,

    selector: 'search-find',

    templateUrl: 'search.component.html'

})

export class SearchComponent {

  public sub: any; piwiksub: any;

  public reloadPublications: boolean;

  public reloadDatasets: boolean;

  public reloadProjects: boolean;

  public reloadDataproviders: boolean;

  public reloadOrganizations: boolean;

  public pageTitle = "Search in OpenAIRE"

  public keyword:string = "";

  public publications:string[];

  public datasets:string[];

  public projectsTab:string[];

  public dataproviders:string[];

  public organizations:string[];

  public activeTab = "publications";

  public linkToSearchPublications = "";

  public linkToSearchProjects = "";

  public linkToSearchDataproviders = "";

  public linkToSearchDatasets = "";

  public linkToSearchOrganizations = "";

  public fetchPublications : FetchPublications;

  public fetchDataproviders : FetchDataproviders;

  public fetchProjects : FetchProjects;

  public fetchDatasets: FetchDatasets;

  public fetchOrganizations: FetchOrganizations;

  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;

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 _meta: Meta,private _piwikService:PiwikService ) {

          this.fetchPublications = new FetchPublications(this._searchPublicationsService);

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

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

          this.fetchDatasets = new FetchDatasets( this._searchDatasetsService);

          this.fetchOrganizations = new FetchOrganizations( this._searchOrganizationsService);

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

          var title = "OpenAIRE | Search publications, research data, projects... | OpenAIRE";

          var url = OpenaireProperties.getBaseLink()+this._router.url;

          this._meta.setTitle(title);

          this._meta.updateMeta("description", description);

          this._meta.updateProperty("og:description", description);

          this._meta.updateProperty("og:title", title);

          this._meta.updateProperty("og:url", url);

          if(OpenaireProperties.isPiwikTrackEnabled() && (typeof document !== 'undefined')){

            this.piwiksub = this._piwikService.trackView("OpenAIRE |Search publications, research data, projects...").subscribe();

          }

  }

  public ngOnInit() {

    this.sub =  this.route.queryParams.subscribe(params => {

      this.keyword = (params['keyword'])?params['keyword']:"";

      if(this.keyword !=null && this.keyword.length > 0){

          this.reloadTabs();

          this.activeTab = "publications";

          this.searchPublications();

          this.count();

      }

    });

  }

  public ngOnDestroy() {

    this.sub.unsubscribe();

    if(this.piwiksub){

  this.piwiksub.unsubscribe();

}

    if(this.keyword !=null && this.keyword.length > 0){

        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();

        }

    }

  }

  public searchPublications() {

    this.activeTab = "publications";

    if( this.reloadPublications &&

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

          this.fetchPublications.searchUtils.status == this.errorCodes.DONE )) {

      this.reloadPublications = false;

      this.fetchPublications.getResultsByKeyword(this.keyword,  1, 10);

      this.linkToSearchPublications = OpenaireProperties.getLinkToSearchPublications();// + "?keyword="  + this.keyword;

    }

   }

   public searchDatasets() {

     this.activeTab = "research data";

     if(this.reloadDatasets &&

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

          this.fetchDatasets.searchUtils.status == this.errorCodes.DONE )) {

       this.reloadDatasets = false;

       this.fetchDatasets.getResultsByKeyword(this.keyword,  1, 10);

       this.linkToSearchDatasets = OpenaireProperties.getLinkToSearchDatasets();// + "?keyword="  + this.keyword;

     }

   }

   public  searchProjects() {

     this.activeTab = "projects";

     console.log("searchProjects");

     if(this.reloadProjects &&

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

          this.fetchProjects.searchUtils.status == this.errorCodes.DONE )) {

       this.reloadProjects = false;

       console.log("do the search  searchProjects");

       this.fetchProjects.getResultsByKeyword(this.keyword,  1, 10);

       this.linkToSearchProjects = OpenaireProperties.getLinkToSearchProjects();// + "?keyword="  + this.keyword;

     }

   }

   public  searchDataProviders() {

     this.activeTab = "content providers";

     if( this.reloadDataproviders &&

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

           this.fetchDataproviders.searchUtils.status == this.errorCodes.DONE )) {

       this.reloadDataproviders = false;

       this.fetchDataproviders.getResultsByKeyword(this.keyword, 1, 10);

       this.linkToSearchDataproviders = OpenaireProperties.getLinkToSearchDataProviders();// + "?keyword="  + this.keyword;

     }

   }

   public searchOrganizations() {

     this.activeTab = "organizations";

     if( this.reloadOrganizations &&

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

           this.fetchOrganizations.searchUtils.status == this.errorCodes.DONE )) {

       this.reloadOrganizations = false;

       this.fetchOrganizations.getResultsByKeyword(this.keyword,  1, 10);

       this.linkToSearchOrganizations = OpenaireProperties.getLinkToSearchOrganizations();// + "?keyword="  + this.keyword;

     }

   }

   public keywordChanged($event){

    this.keyword = $event.value;

    console.info("Search Find: search with keyword \"" +  this.keyword + "\"" );

      this.location.go(location.pathname,"?keyword="  + this.keyword);

    this.reloadTabs();

    if(this.activeTab == "publications") {

        this.searchPublications();

    }

    if(this.activeTab == "projects") {

        this.searchProjects();

    }

    if(this.activeTab == "content providers") {

        this.searchDataProviders();

    }

    if(this.activeTab == "research data") {

        this.searchDatasets();

    }

    if(this.activeTab == "organizations") {

        this.searchOrganizations();

    }

    this.count();

   }

   private count() {

     if(this.activeTab != "publications"){

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

      this.fetchPublications.results = [];

      this.subPub = this._searchPublicationsService.numOfSearchPublications(this.keyword).subscribe(

             data => {

                console.log("Count results: "+data);

                 this.fetchPublications.searchUtils.totalResults = data;

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

                 if(this.fetchPublications.searchUtils.totalResults == 0) {

                   this.fetchPublications.searchUtils.status = this.errorCodes.NONE;

                 }

             },

             err => {

       		    console.log(err);

              if(err.status == '404') {

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

              } else if(err.status == '500') {

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

              } else {

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

              }

              //this.fetchPublications.searchUtils.status = this.errorCodes.ERROR;

       		 }

      );

    }

    if(this.activeTab != "research data"){

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

       this.fetchDatasets.results = [];

       this.subData = this._searchDatasetsService.numOfSearchDatasets(this.keyword).subscribe(

             data => {

                 this.fetchDatasets.searchUtils.totalResults = data;

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

                 if(this.fetchDatasets.searchUtils.totalResults == 0) {

                   this.fetchDatasets.searchUtils.status = this.errorCodes.NONE;

                 }

             },

             err => {

                 console.log(err);

                 if(err.status == '404') {

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

                 } else if(err.status == '500') {

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

                 } else {

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

                 }

                 //this.fetchDatasets.searchUtils.status = this.errorCodes.ERROR;

              }

       );

    }

    if(this.activeTab != "projects"){

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

      this.fetchProjects.results = [];

      this.subProjects = this._searchProjectsService.numOfSearchProjects(this.keyword).subscribe(

             data => {

                 this.fetchProjects.searchUtils.totalResults = data;

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

                 if(this.fetchProjects.searchUtils.totalResults == 0) {

                   this.fetchProjects.searchUtils.status = this.errorCodes.NONE;

                 }

             },

             err => {

                 console.log(err);

                 if(err.status == '404') {

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

                 } else if(err.status == '500') {

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

                 } else {

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

                 }

                 //this.fetchProjects.searchUtils.status = this.errorCodes.ERROR;

              }

       );

     }

     if(this.activeTab != "content providers"){

       this.fetchDataproviders.results = [];

       this.fetchDataproviders.getNumForSearch(this.keyword);

     }

      if(this.activeTab != "organizations"){

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

       this.fetchOrganizations.results = [];

       this.subOrg = this._searchOrganizationsService.numOfSearchOrganizations(this.keyword).subscribe(

             data => {

                 this.fetchOrganizations.searchUtils.totalResults = data;

                 this.fetchOrganizations.searchUtils.status = this.errorCodes.DONE;

                 if(this.fetchOrganizations.searchUtils.totalResults == 0) {

                   this.fetchOrganizations.searchUtils.status = this.errorCodes.NONE;

                 }

             },

             err => {

                 console.log(err);

                 if(err.status == '404') {

                   this.fetchOrganizations.searchUtils.status = this.errorCodes.NOT_FOUND;

                 } else if(err.status == '500') {

                   this.fetchOrganizations.searchUtils.status = this.errorCodes.ERROR;

                 } else {

                   this.fetchOrganizations.searchUtils.status = this.errorCodes.NOT_AVAILABLE;

                 }

                 //this.fetchOrganizations.searchUtils.status = this.errorCodes.ERROR;

              }

         );

       }

   }

   private reloadTabs() {

       this.reloadPublications = true;

       this.reloadDatasets = true;

       this.reloadProjects = true;

       this.reloadDataproviders = true;

       this.reloadOrganizations = true;

   }

}