import {Component, ViewChild}         from '@angular/core';
import {ElementRef, Input}            from '@angular/core';
import {ActivatedRoute, Router}       from '@angular/router';
import {Title, Meta}                  from '@angular/platform-browser';

import {Observable}                   from 'rxjs/Observable';

import {EnvProperties}                from '../../utils/properties/env-properties';
import {PublicationInfo}              from '../../utils/entities/publicationInfo';
import {RouterHelper}                 from '../../utils/routerHelper.class';

import {PiwikService}                 from '../../utils/piwik/piwik.service';
import {PublicationService}           from './publication.service';
import { SEOService } from '../../sharedComponents/SEO/SEO.service';


@Component({
    selector: 'publication',
    templateUrl: 'publication.component.html',

})

export class PublicationComponent {
  @Input() piwikSiteId = null;
  public publicationInfo: PublicationInfo;
  public articleId: string;

  // APP BOX variables
  public showAllCollectedFrom: boolean = false;
  public showAllDownloadFrom: boolean = false;

  // Metrics tab variables
  public metricsClicked: boolean;
  public viewsFrameUrl: string;
  public downloadsFrameUrl: string;
  public totalViews: number;
  public totalDownloads: number;
  public pageViews: number;

  // Custom tab paging variables
  public referencesPage: number = 1;
  public organizationsPage: number = 1;
  public softwarePage: number = 1;
  public bioentitiesPage: number = 1;
  public openCitationsPage: number = 1;
  public pageSize: number = 10;
  /*
    public startt: number = 0;
    public stopp: number = 0;
  */

  // Active tab variable for responsiveness
  public activeTab: string = "References";

  // Map counting variables
  public bioentitiesNum: number = 0;
  public relatedResearchResultsNum: number = 0;

  // Message variables
  public warningMessage = "";
  public errorMessage = "";
  public showLoading: boolean = true;

  public routerHelper:RouterHelper = new RouterHelper();

  private doi: string;
  public doiURL: string;
  private result;
  sub: any; piwiksub: any; infoSub: any;
  properties:EnvProperties;

  constructor ( private element: ElementRef,
                private _publicationService: PublicationService,
                private _piwikService:PiwikService,
                private route: ActivatedRoute,
                private _meta: Meta,
                private _title: Title,
                private _router: Router,
              private seoService: SEOService) {
  }

  ngOnInit() {
    this.route.data
      .subscribe((data: { envSpecific: EnvProperties }) => {
         this.properties = data.envSpecific;
         this.doiURL = this.properties.doiURL;
         this.updateUrl(data.envSpecific.baseLink+this._router.url);

      });
       this.sub =  this.route.queryParams.subscribe(data => {
           this.publicationInfo = null;
           this.updateTitle("Publication");
           this.updateDescription("");
           this.seoService.createLinkForCanonicalURL(this.properties.baseLink+this._router.url);
          this.articleId = data['articleId'];

          this.metricsClicked = false;

          if(this.articleId){

              this.getPublicationInfo(this.articleId);
              // if (typeof document !== 'undefined') {
              //   switcher(UIkit);
              // }
          }else{
              this.showLoading = false;
              this.warningMessage="No valid publication id";
          }

          this.viewsFrameUrl = this.properties.framesAPIURL+'merge.php?com=query&data=[{"query":"resRepoViews", "resTitle":"'+this.articleId+'", "table":"","fields":[{"fld":"sum","agg":"sum","type":"column","yaxis":1,"c":false}],"xaxis":{"name":"month","agg":"sum"},"group":" ","color":"","type":"chart","size":30,"sort":"xaxis","xStyle":{"r":-30,"s":"0","l":"-","ft":"-","wt":"-"},"title":"","subtitle":"","xaxistitle":"Repository","yaxisheaders":["Monthly views"],"generalxaxis":"","theme":0,"in":[],"filters":[{"name":"","values":[""],"to":"-1"}]}]&info_types=["column"]&stacking=normal&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(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":"resRepoDownloads", "resTitle":"'+this.articleId+'", "table":"","fields":[{"fld":"sum","agg":"sum","type":"column","yaxis":1,"c":false}],"xaxis":{"name":"month","agg":"sum"},"group":" ","color":"","type":"chart","size":30,"sort":"xaxis","xStyle":{"r":-30,"s":"0","l":"-","ft":"-","wt":"-"},"title":"","subtitle":"","xaxistitle":"Repository","yaxisheaders":["Monthly downloads"],"generalxaxis":"","theme":0,"in":[],"filters":[{"name":"","values":[""],"to":"-1"}]}]&info_types=["column"]&stacking=normal&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(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';

          if (typeof document !== 'undefined') {
             this.element.nativeElement.scrollIntoView();
          }
    });
  }

    ngOnDestroy() {
        if(this.sub){
          this.sub.unsubscribe();
        }
        if(this.piwiksub){
          this.piwiksub.unsubscribe();
        }
        if(this.infoSub) {
          this.infoSub.unsubscribe();
        }
    }

    private getOpenCitations(id: string) {
      this._publicationService.getOpenCitations(this.articleId, this.properties).subscribe(
        data => {
          this.publicationInfo.openCitations = data[1];
        },
        err => {
          //console.log(err);
          this.handleError("Error getting open citation for publication with id: "+this.articleId, err);
        }
      );
    }

    private getPublicationInfo(id:string) {
        this.warningMessage = '';
        this.errorMessage=""
        this.showLoading = true;

        this.publicationInfo = null;

        this.infoSub = this._publicationService.getPublicationInfo(this.articleId, this.properties).subscribe(
            data => {
                this.publicationInfo = data;

                if((this.properties.environment == "beta" || this.properties.environment == "development") && (typeof document !== 'undefined')) {
                  this.getOpenCitations(this.articleId);
                }

                // this.result = []
                // this.result = {id: id, type :"dataset", source : "openaire", title: this.publicationInfo.title,url: '', result: '', accessRights: this.publicationInfo.bestaccessright, embargoEndDate: ''};
                /*if(this.publicationInfo.title.name != undefined && this.publicationInfo.title.name!= ''){
                  this.updateTitle(this.publicationInfo.title.name);
                  this.updateDescription("Dataset, search, repositories, open access,"+this.publicationInfo.title.name);
                }*/
                if(this.publicationInfo.title){
                  this.updateTitle(this.publicationInfo.title);
                  this.updateDescription((this.publicationInfo.description?(this.publicationInfo.description):(","+this.publicationInfo.title)));
                }
                if(this.properties.enablePiwikTrack && (typeof document !== 'undefined')){
                  this.piwiksub =  this._piwikService.trackView(this.properties, this.publicationInfo.title/*.name*/, this.piwikSiteId).subscribe();
                }

                let bioentitiesNum = 0;
                if(this.publicationInfo.bioentities != undefined) {
                    this.publicationInfo.bioentities.forEach(function (value, key, map) {
                        bioentitiesNum += value.size;
                    });
                }
                this.bioentitiesNum = bioentitiesNum;

                let relatedResearchResultsNum = 0;
                if(this.publicationInfo.relatedResearchResults != undefined) {
                    this.publicationInfo.relatedResearchResults.forEach(function (value, key, map) {
                        relatedResearchResultsNum += value.length;
                    });
                }
                this.relatedResearchResultsNum = relatedResearchResultsNum;

                this.result = {id: this.articleId, type :"publication", source : "openaire", title: this.publicationInfo.title,url: '', result: '', accessRights: /*this.publicationInfo.title.accessMode*/this.publicationInfo.accessMode, embargoEndDate: ''};
                // this.result.push(result_);

                if(this.publicationInfo.identifiers != undefined && this.publicationInfo.identifiers.has('doi')) {
                    this.doi = this.publicationInfo.identifiers.get('doi')[0];
                }

                this.showLoading = false;

                if(this.publicationInfo.references) {
                  this.activeTab = "References";
                } else if(this.publicationInfo.relatedResearchResults) {
                  this.activeTab = "Related Research Results";
                } else if(this.publicationInfo.similarResearchResults) {
                  this.activeTab = "Similar Research Results";
                } else if(this.publicationInfo.organizations) {
                  this.activeTab = "Related Organizations";
                } else if(this.publicationInfo.bioentities) {
                  this.activeTab = "bioentities";
                } else if(this.publicationInfo.software) {
                  this.activeTab = "Software";
                } else {
                  this.activeTab = "Metrics";
                  this.metricsClicked = true;
                }
            },
            err => {
              //console.log(err);
              this.handleError("Error getting publication for id: "+this.articleId, err);

              this.errorMessage = 'No publication found';
              this.showLoading = false;
            }
      );
    }

    public metricsResults($event) {
      this.totalViews = $event.totalViews;
      this.totalDownloads = $event.totalDownloads;
      this.pageViews = $event.pageViews;
    }

    public buildCurationTooltip() {
        let tooltipContent: string = "<div class='uk-margin uk-padding-small'>";

        tooltipContent += "<h4>Record in preview</h4>";
        tooltipContent += "<p>Bibliographic record accepted by the system, but not yet processed by <br> OpenAIRE tools for information quality improvement and de-duplication</p>";

        return tooltipContent+= "</div>";
    }

    private updateDescription(description:string){
      this._meta.updateTag({content:description},"name='description'");
      this._meta.updateTag({content:description},"property='og:description'");
    }
    private updateTitle(title:string){
      var _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'");
    }

    public totalPages(totalResults: number): number {
      let totalPages:any = totalResults/this.pageSize;
      if(!(Number.isInteger(totalPages))) {
          totalPages = (parseInt(totalPages, this.pageSize) + 1);
      }
      return totalPages;
    }

    public updateReferencesPage($event) {
      this.referencesPage = $event.value;
    }

    public updateOrganizationsPage($event) {
      this.organizationsPage = $event.value;
    }

    public updateSoftwarePage($event) {
      this.softwarePage = $event.value;
    }

    public updateBioentitiesPage($event) {
      this.bioentitiesPage = $event.value;
    }

    public updateOpenCitationsPage($event) {
      this.openCitationsPage = $event.value;
    }

    public keysToArray(bioentities: Map<string, string>) : string[] {
      let keys: string[] = [];
      bioentities.forEach(function (value, key, map) {
        keys.push(key);
      });
      return keys;
    }
    public getKeys( map) {
      return Array.from(map.keys());
    }
/*
    start(i: number, bioentitiesPage: number) {
      let sum = 0;
      let index=0;
      let retValue = 0;
      let valuesToPage = this.pageSize*bioentitiesPage;
      let valuesToPreviousPage = valuesToPage - this.pageSize;

      if(bioentitiesPage == 1) {
        return 0;
      }

      this.publicationInfo.bioentities.forEach(function (value, key, map) {
        sum += map.get(key).size;

        if(index == i) {
          if(sum <= valuesToPreviousPage) {
            retValue =  0;
          } else if((sum-map.get(key).size) >= valuesToPage){
            retValue = 0;
          } else {
            if(map.get(key).size < (sum - valuesToPreviousPage)) {
              retValue = 0;
            } else {
              retValue = map.get(key).size - (sum - valuesToPreviousPage);
            }
          }
        }
        index++;
      });
      this.startt = retValue;
      return retValue;
    }

    stop(i: number, bioentitiesPage: number) {
      let sum = 0;
      let index=0;
      let retValue = 0;
      let valuesToPage = this.pageSize*bioentitiesPage;
      let valuesToPreviousPage = valuesToPage - this.pageSize;

      this.publicationInfo.bioentities.forEach(function (value, key, map) {
        sum += map.get(key).size;
        if(index == i) {
          if(sum <= valuesToPreviousPage) {
            retValue =  0;
          } else if((sum - map.get(key).size) >= valuesToPage){
            retValue = 0;
          } else {
            if(sum < valuesToPage) {
              retValue = map.get(key).size;
            } else {
              retValue = map.get(key).size - (sum - valuesToPage);
            }
          }
        }
        index++;
      });
      this.stopp = retValue;
      return retValue;
    }
*/

  private handleError(message: string, error) {
    console.error("Publication Landing Page: "+message, error);
  }
}