import {Component} from '@angular/core';
import {Subscription} from 'rxjs';
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 {  FetchDataproviders}             from '../openaireLibrary/utils/fetchEntitiesClasses/fetchDataproviders.class';
import {  SearchDataprovidersService} from '../openaireLibrary/services/searchDataproviders.service';
import {  SearchProjectsService} from '../openaireLibrary/services/searchProjects.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';
import { SEOService } from '../openaireLibrary/sharedComponents/SEO/SEO.service';
import {SearchResearchResultsService} from "../openaireLibrary/services/searchResearchResults.service";
import {HelperService} from "../openaireLibrary/utils/helper/helper.service";
import {Filter} from "../openaireLibrary/searchPages/searchUtils/searchHelperClasses.class";

@Component({
    selector: 'home',
    templateUrl: 'home.component.html',
})
export class HomeComponent {
  // MAX 12 logos in every slide
  public logos = {
    "publication": [
      [
        "logo-pubmed.png",
        "logo-arxiv.png",
        "logo-base.png",
        "logo-scielo.png",
        "logo-la-referencia.png",
        "logo-soar.png",
        "logo-repec.png",
        "logo-core.png",
        "logo-zenodo.png",
        "logo-narcis.png"
      ],
      [
        "logo-crossref.png",
        "logo-unpaywall.png",
        "logo-elsevier.png",
        "logo-spring-nature.png",
        "logo-frontiers.png",
        "logo-opencitations.png",
        "logo-doaj.png",
        "logo-microsoft.png",
        "logo-plos.png",
        "logo-f1000.png",
        "logo-copernicus.png"
      ]
    ],
    "software": [
      [
        "logo-software-heritage.png",
        "logo-github.png",
        "logo-doecode.png",
        "logo-bitbucket.png",
        "logo-elixir-bio-tools.png",
        "logo-google-code.png",
        "logo-sourceforge.png",
        "logo-zenodo.png"
      ]
    ],
    "dataset": [
      [
        "logo-scholexplorer.png",
        "logo-zenodo.png",
        "logo-datacite.png",
        "logo-pangea.png",
        "logo-figshare.png",
        "logo-protocols.png",
        "logo-opentrials.png",
        "logo-kaggle.png",
        "logo-reactome.png",
        "logo-easy.png",
        "logo-dryad.png"
      ]
    ],
    //"other": [],
    "persistent": [
      [
        "logo-re3data.png",
        "logo-orcid.png",
        "logo-opendoar.png",
        "logo-grid.png"
      ]
    ],
    "funder": [
      [
        "logo-european-commision.png",
        "logo-nsf.png",
        "logo-miur.png",
        "logo-nhmrc.png",
        "logo-sfi.png",
        "logo-nwo.png",
        "logo-welcome-trust.png",
        "logo-fct.png",
        "logo-gsrt.png",
        "logo-fnsnf.png"
      ]
    ]
  };

  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 datasetsLinkedSize:any = null;
  public softwareLinkedSize:any = null;
  public softwareSize: any = null;
  public otherSize: 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;
  showSoftware: boolean = false;
  showOrp: boolean = false;
  showProjects:boolean= false;
  showDataProviders:boolean= false;
  showOrganizations:boolean= false;
  properties: EnvProperties;
  public readMore: boolean = false;

  subs: Subscription[] = [];

  resultsQuickFilter: { filter: Filter, selected: boolean, filterId: string, value: string } = {
    filter: null,
    selected: true,
    filterId: "resultbestaccessright",
    value: "Open Access"
  };
  selectedEntity = "all";
  selectedEntitySimpleUrl;
  selectedEntityAdvancedUrl;
  resultTypes = {publication:true, dataset:true, software:true, other:true};
  public pageContents = null;

  constructor (
    private route: ActivatedRoute,
      private _router: Router,
      private _searchResearchResultsService: SearchResearchResultsService,
      private _searchDataprovidersService: SearchDataprovidersService,
      private _searchProjectsService: SearchProjectsService,
      private _searchOrganizationsService: SearchOrganizationsService,
      private _refineFieldResultsService:RefineFieldResultsService,
      private location: Location, private _piwikService:PiwikService,
      private config: ConfigurationService, private _meta: Meta, private _title: Title, private seoService: SEOService,
    private helper: HelperService, private router: Router
    ) {

          let description = "OpenAIRE Explore: Over 100M of research deduplicated, 170K research software, 11M research data. One of the largest open scholarly records collection worldwide.";
          let title = "OpenAIRE | Find and Share research";

          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);
  }

  private getPageContents() {
    this.subs.push(this.helper.getPageHelpContents(this.properties, 'openaire', this._router.url).subscribe(contents => {
      this.pageContents = contents;
    }));
  }

  public getKeys(obj: {}) {
    return Object.keys(obj);
  }

  createRange(number){
    var items: number[] = [];
    for(var i = 1; i <= number; i++){
      items.push(i);
    }
    return items;
  }

  public ceil(num: number) {
    return Math.ceil(num);
  }

  public ngOnInit() {
    this.subs.push(this.route.data
     .subscribe((data: { envSpecific: EnvProperties }) => {
        this.properties = data.envSpecific;
        this.seoService.createLinkForCanonicalURL(this.properties.baseLink+this._router.url, false);
       this.getPageContents();

       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.subs.push(this._piwikService.trackView(this.properties, "OpenAIRE").subscribe());
          }

          //this.config.getCommunityInformation(this.properties, this.properties.adminToolsCommunity ).subscribe(data => {
         this.subs.push(this.config.communityInformationState.subscribe(data => {
           if(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.showSoftware = showEntity["software"];
             this.showOrp = showEntity["orp"];
             this.showProjects = showEntity["project"];
             this.showDataProviders = showEntity["datasource"];
             this.showOrganizations = showEntity["organization"];
             this.getNumbers();
             // if(this.showDataProviders) {
             //   this.fetchDataproviders.getResultsForHome(this.numResults, this.properties);
             // }
           }
         },
          error => {
            this.handleError("Error getting community information", error);
          }
        ));
       }
     }));
  }
  public ngOnDestroy() {
    for (let sub of this.subs) {
      sub.unsubscribe();
    }
  }

   private getNumbers() {
     if(this.showPublications){
       this.subs.push(this._searchResearchResultsService.numOfSearchResults("publication", "", this.properties).subscribe(
               data => {
                  if(data && data != null && data > 0 ){
                      this.publicationsSize = NumberUtils.roundNumber(data);

                  }
               },
               err => {
         		    //console.log(err);
                this.handleError("Error getting number of publications", err);
          		 }
        ));
      }
      if(this.showDatasets){
        this.subs.push(this._searchResearchResultsService.numOfSearchResults("dataset", "", this.properties).subscribe(
             data => {
               if(data && data != null && data > 0 ){
                   this.datasetsSize = NumberUtils.roundNumber(data);
               }
             },
             err => {
                 //console.log(err);
                 this.handleError("Error getting number of research data", err);
               }
         ));
        this.subs.push(this._searchResearchResultsService.numOfSearchResultsLinkedToPub("dataset", this.properties).subscribe(
          data => {
            if(data && data != null && data > 0 ){
              this.datasetsLinkedSize = NumberUtils.roundNumber(data);
            }
          },
          err => {
            //console.log(err);
            this.handleError("Error getting number of linkedresearch data", err);
          }
        ));

       }
     if (this.showSoftware) {
       this.subs.push(this._searchResearchResultsService.numOfSearchResults("software", "", this.properties).subscribe(
         data => {
           if (data && data > 0) {
             this.softwareSize = NumberUtils.roundNumber(data);
           }else{
             this.showSoftware = false;
           }
         },
         err => {
           this.handleError("Error getting number of software data", err);
         }
       ));
       this.subs.push(this._searchResearchResultsService.numOfSearchResultsLinkedToPub("software", this.properties).subscribe(
         data => {
           if(data && data != null && data > 0 ){
             this.softwareLinkedSize = NumberUtils.roundNumber(data);
           }
         },
         err => {
           //console.log(err);
           this.handleError("Error getting number of linked software", err);
         }
       ));
     }
     if (this.showOrp) {
       this.subs.push(this._searchResearchResultsService.numOfSearchResults("other", "", this.properties).subscribe(
         data => {
           if (data && data > 0) {
             this.otherSize = NumberUtils.roundNumber(data);
           }else{
             this.showOrp = false;
           }
         },
         err => {
           this.handleError("Error getting number of software data", err);
         }
       ));
     }
       if(this.showProjects){
         this.subs.push(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);
               this.handleError("Error getting 'funder' field results of projects", err);
        }));
      }
      if(this.showDataProviders){
        this.subs.push(this._searchDataprovidersService.numOfSearchDataproviders("", this.properties).subscribe(
           data => {
             if(data && data != null && data > 0 ){
                 this.datasourcesSize = NumberUtils.roundNumber(data);
             }

           },
           err => {
               //console.log(err);
               this.handleError("Error getting number of content providers", err);
           }
       ));
     }
   }

   private handleError(message: string, error) {
       console.error("Home Page: "+message, error);
   }
  entityChanged($event){
    this.selectedEntity = $event.entity;
    this.selectedEntitySimpleUrl = $event.simpleUrl;
    this.selectedEntityAdvancedUrl = $event.advancedUrl;
  }
  goTo(simple:boolean){
    let url = (simple)?this.selectedEntitySimpleUrl:this.selectedEntityAdvancedUrl;
    let parameterNames = [];
    let parameterValues = [];
    if (this.selectedEntity == "result") {
      if (this.resultTypes) {
        let values = [];
        if (this.resultTypes.publication) {
          values.push("publications");
        }
        if (this.resultTypes.dataset) {
          values.push("datasets");
        }
        if (this.resultTypes.software) {
          values.push("software");
        }
        if (this.resultTypes.other) {
          values.push("other");
        }
        if (values.length > 0 && values.length !=4) {
          parameterNames.push("type");
          parameterValues.push(values.join(","));
        }
        if (this.resultsQuickFilter) {
          parameterNames.push("qf");
          parameterValues.push("" + this.resultsQuickFilter.selected);
        }
      }
    }
    if(this.keyword.length > 0) {
      parameterNames.push("q");
      parameterValues.push(this.keyword);
      parameterNames.push("op");
      parameterValues.push("and");
    }
    this._router.navigate([url], {queryParams: this.routerHelper.createQueryParams(parameterNames, parameterValues)});
   }
}