D-Net

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

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

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

import {CommunityService} from "../openaireLibrary/connect/community/community.service";

import {ConnectHelper} from "../openaireLibrary/connect/connectHelper";

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

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

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

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

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

import {PiwikHelper} from "../utils/piwikHelper";

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

import {Breadcrumb} from "../openaireLibrary/utils/breadcrumbs/breadcrumbs.component";

@Component({

  selector: 'subjects',

  template: `

    <schema2jsonld *ngIf="url" [URL]="url" [name]="pageTitle" type="other"></schema2jsonld>

    <div style=" min-height: 650px;" class="communityBackground">

      <div class="uk-section uk-padding-remove-top uk-padding-remove-bottom">

        <breadcrumbs addClass="uk-margin-large-left uk-margin-remove-bottom uk-margin-small-top" [breadcrumbs]="breadcrumbs"></breadcrumbs>

        <!--          <div *ngIf="communityId != null && communityId != ''" -->

<!--               class="uk-container uk-container-large uk-margin-top white-box-with-border">-->

            <div class="uk-container uk-container-large">

              <div *ngIf="showLoading">

                <div class="uk-animation-fade uk-width-1-1" role="alert"><span

                  class="loading-gif  uk-align-center"></span></div>

              </div>

              <div *ngIf="!showLoading">

                <div class="uk-h2 uk-margin-bottom uk-margin-medium-top">

                  <span>Subjects</span>

                </div>

                <div style=" min-height: 250px;" class="white-box-with-border uk-padding uk-list">

                  <helper *ngIf="pageContents && pageContents['top'] && pageContents['top'].length > 0"

                          [texts]="pageContents['top']"></helper>

                  <span *ngFor="let subject of subjects let i=index">

                      <span *ngIf="subject != ''">

                        <a class="portal-link"

                           [queryParams]="{f0:'resultsubject',fv0:createParams(subject)}"

                           routerLinkActive="router-link-active" [routerLink]="properties.searchLinkToAdvancedResults" >

                          <span>{{subject}}</span>

                        </a>

                        <span *ngIf="i < subjects.length-1">, </span>

                      </span>

                  </span>

                </div>

            </div>

          </div>

      </div>

    </div>

  `

})

export class SubjectsComponent {

  public subjects: string[];

  @Input() communityId = null;

  public showLoading = true;

  public properties: EnvProperties;

  public pageContents = null;

  public divContents = null;

  public piwiksub: any;

  public url: string = null;

  public pageTitle: string = "Subjects";

  public breadcrumbs: Breadcrumb[] = [{name: 'home', route: '/'}, {name: 'about - subjects'}];

  constructor (private route: ActivatedRoute,

               private communityService: CommunityService,

               private _router: Router,

               private helper: HelperService,

               private _meta: Meta,

               private _title: Title,

               private seoService: SEOService,

               private _piwikService: PiwikService) {}

  ngOnInit() {

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

      this.showLoading = true;

      this.properties = data.envSpecific;

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

          this.piwiksub = this._piwikService.trackView(this.properties, this.pageTitle, PiwikHelper.getSiteId(this.communityId, this.properties.environment)).subscribe();

        }

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

        this.seoService.createLinkForCanonicalURL(this.url);

        this.updateUrl(this.url);

        this.updateTitle(this.pageTitle);

        this.updateDescription("OpenAIRE - Connect, Community Gateway, research community");

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

          this.communityId  = ConnectHelper.getCommunityFromDomain(this.properties.domain);

          if(!this.communityId) {

            this.communityId = data['communityId'];

          }

          //this.getDivContents();

          this.getPageContents();

          this.communityService.getCommunity(this.properties, this.properties.communityAPI + this.communityId).subscribe(community => {

            this.subjects = community.subjects;

            this.showLoading = false;

            HelperFunctions.scroll();

          });

        });

    });

  }

  createParams(param) {

    return StringUtils.quote(StringUtils.URIEncode(param));

  }

  ngOnDestroy() {

    if(this.piwiksub) {

      this.piwiksub.unsubscribe();

    }

  }

  private getPageContents() {

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

      this.pageContents = contents;

    })

  }

  private getDivContents() {

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

      this.divContents = contents;

    })

  }

  private updateDescription(description: string) {

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

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

  }

  private updateTitle(title: string) {

    var _title = ((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'");

  }

}