import {Component, Input, Output, EventEmitter} from '@angular/core';
import { ActivatedRoute } from '@angular/router';
import {SearchCrossrefService} from '../claim-utils/service/searchCrossref.service';
import {SearchOrcidService} from '../claim-utils/service/searchOrcid.service';
import {SearchPublicationsService} from '../../services/searchPublications.service';
import { SearchDataciteService } from '../claim-utils/service/searchDatacite.service';
import {SearchDatasetsService} from '../../services/searchDatasets.service';
import {SearchSoftwareService} from '../../services/searchSoftware.service';

import { ErrorCodes} from '../../utils/properties/errorCodes';
import {ClaimResult} from '../claim-utils/claimEntities.class';
import{DOI} from '../../utils/string-utils.class';
import{EnvProperties} from '../../utils/properties/env-properties';

declare var UIkit:any;

@Component({
    selector: 'claim-result-search-form',
    templateUrl: 'claimResultSearchForm.component.html',

})
export class ClaimResultSearchFormComponent {
  constructor (private _searchDataciteService: SearchDataciteService, private _searchDatasetsService:SearchDatasetsService, private _searchSoftwareService:SearchSoftwareService,
    private _searchCrossrefService: SearchCrossrefService,private _searchOrcidService: SearchOrcidService, private _searchPublicationsService: SearchPublicationsService,
    private route: ActivatedRoute) {
    var myDate = new Date();
    this.todayDate = myDate.getFullYear()+ "-" +(myDate.getMonth() + 1) + "-" + myDate.getDate() ;
    this.nextDate =  (myDate.getFullYear()+100)+ "-" +(myDate.getMonth() + 1) + "-" + myDate.getDate() ;

  }
  ngOnInit() {
    console.log("Init of ClaimResultSearchFormComponent");
    console.log(this.properties);
    if(this.keyword !=null && this.keyword.length > 0){
     this.search(false);
    }
}


  page : number = 1;
  size:number = 5;
  navigateTo: string = "Search";
  source: string = "datacite";
  type : string = "dataset";
  showSearchResults:boolean=false;
  // searchType ="publication";
  @Input() public select:boolean = true ;
  @Input() public keyword:string = '';
  @Input() public selectedResults:ClaimResult[];
  @Input() public properties:EnvProperties;

  // @Output() datasetsChange = new EventEmitter();
  // @Output() publicationsChange = new EventEmitter();

  // @Output() resultsChange = new EventEmitter();

    public errorCodes:ErrorCodes = new ErrorCodes();

    dataciteResults=[];
    dataciteResultsNum:number = null;
    // dataciteResultsNum : Observable<number> = null;
    dataciteStatus = this.errorCodes.NONE;
    datacitePage : number = 1;

    openaireData=[];
    openaireDataNum:number = 0 ;
    openaireDataStatus = this.errorCodes.NONE;
    openaireDataPage : number = 1;
    openaireSoftware=[];
    openaireSoftwareNum:number = 0 ;
    openaireSoftwareStatus = this.errorCodes.NONE;
    openaireSoftwarePage : number = 1;

    public warningMessage = "";
    public infoMessage = "";

    public todayDate = '';
    public nextDate = '';
    public DOIs:string[] = [];
    sub: any;
    public searchSource:string = "openaire"
    public activeTab:string = "openairePub"


    crossrefResults=[];
    crossrefResultsNum : number = null;
    crossrefPage : number = 1;
    crossrefStatus:number = this.errorCodes.NONE;

    openairePubs = [];
    openairePubsNum: number ;
    openairePubsPage : number = 1;
    openairePubsStatus:number = this.errorCodes.NONE;

    orcidResults: string[];
    orcidResultsNum: number ;
    totalPages: number;
    orcidResultsToShow: string[];
    orcidPage : number = 1;
    orcidStatus:number = this.errorCodes.NONE;
    authorId: string;
    selectAuthorId: string = "0";
    authorGivenName: string;
    authorFamilyName: string;

    authorIds: string[];
    authorGivenNames: string[];
    authorFamilyNames: string[];

    authorsNum : number ;

    reloadOpenaire:boolean = true;
    reloadCrossref:boolean = false;
    reloadDatacite:boolean = false;
    reloadOrcid:boolean = false;




  search(sourceChanged){
    this.warningMessage = "";
    this.infoMessage = "";
    if(!sourceChanged){
      this.DOIs = DOI.getDOIsFromString(this.keyword);
      this.reloadOpenaire = true;
      this.reloadCrossref = true;
      this.reloadDatacite = true;
      this.reloadOrcid = true;
    }
    if((this.searchSource == "all" || this.searchSource == "openaire") && this.reloadOpenaire){
      this.searchOpenairePubs(this.keyword, this.size, 1);
      this.searchOpenaireData(this.keyword,this.size,1);
      this.searchOpenaireSoftware(this.keyword,this.size,1);
      this.reloadOpenaire = false;
    }
    if((this.searchSource == "all" || this.searchSource == "crossref")&&this.reloadCrossref){
      this.getCrossrefResults(this.keyword, this.size,1);
      this.reloadCrossref = false;
    }
    if((this.searchSource == "all" || this.searchSource == "datacite")&& this.reloadDatacite){
      this.searchDatacite(this.keyword,this.size,1);
      this.reloadDatacite = false;
    }
    if((this.searchSource == "all" || this.searchSource == "orcid")&& this.reloadOrcid){
      this.searchOrcid(this.keyword);
      this.reloadOrcid = false;
    }
    this.showSearchResults = true;

  }

private   getCrossrefResults (term: string, size : number, page : number)  {
    this.crossrefStatus = this.errorCodes.LOADING;
    if( this.DOIs.length > 0 ){
      this._searchCrossrefService.searchCrossrefByDOIs(this.DOIs, this.properties.searchCrossrefAPIURL).subscribe(
        data => {
            if(data != null) {
                this.crossrefResults = data.items;
                this.crossrefPage=page;
                this.crossrefResultsNum = data['total-results'];
                if(data.items == 0){
                    this._searchCrossrefService.searchCrossrefResults(term, size, page, this.properties.searchCrossrefAPIURL).subscribe(
                        data => {
                            if(data != null) {
                                this.crossrefResults = data.items;
                                this.crossrefPage=page;
                                this.crossrefResultsNum = data['total-results'];
                                this.crossrefStatus = this.errorCodes.DONE;

                            }else{
                              this.crossrefStatus = this.errorCodes.ERROR;
                            }
                        },
                        err =>{
                           console.log(err.status);
                           this.crossrefStatus = this.errorCodes.ERROR;
                         }

                    );
                }else{
                  this.crossrefStatus = this.errorCodes.DONE;
                }
            }
         },
        err => {
          //console.log(err);
          this._searchCrossrefService.searchCrossrefResults(term, size, page, this.properties.searchCrossrefAPIURL).subscribe(
            data => {
              this.crossrefResults = data.items;
              this.crossrefPage=page;
              this.crossrefResultsNum = data['total-results'];
              this.crossrefStatus = this.errorCodes.DONE;

             },
            err => {
              console.log(err.status);
              this.crossrefStatus = this.errorCodes.ERROR;
            }

          );
        }
      );

    }else{


      this._searchCrossrefService.searchCrossrefResults(term, size, page, this.properties.searchCrossrefAPIURL).subscribe(
        data => {
            if(data != null) {
                this.crossrefResults = data.items;
                this.crossrefPage=page;
                this.crossrefResultsNum = data['total-results'];
                this.crossrefStatus = this.errorCodes.DONE;

            }else{
              this.crossrefStatus = this.errorCodes.ERROR;
            }

         },
        err => {
          console.log(err.status);
          this.crossrefStatus = this.errorCodes.ERROR;
          }
      );
    }
  }
  private searchOpenairePubs(term: string, size : number, page : number)  {

          if(this.DOIs.length > 0 ){
            this.openairePubsStatus = this.errorCodes.LOADING;
            this._searchPublicationsService.searchPublicationsByDois(this.DOIs, null, page, size, [], this.properties).subscribe(
              data => {
                  if(data != null) {
                      this.openairePubsPage=page;
                      this.openairePubsNum = data[0];
                      this.openairePubs = data[1];
                      this.openairePubsStatus = this.errorCodes.DONE;
                      if(this.openairePubsNum == 0){
                        this.openairePubsStatus = this.errorCodes.NONE;
                      }
                  }else {
                    this.openairePubsStatus = this.errorCodes.ERROR;
                  }
               },
              err => {
                this.openairePubsStatus = this.errorCodes.ERROR;
                console.log(err.status);
              }
            );
          }else{
            this.openairePubsStatus = this.errorCodes.LOADING;
            this._searchPublicationsService.searchPublications('q='+term, null, page, size, [], this.properties).subscribe(
              data => {
                  if(data != null) {
                      this.openairePubsPage=page;
                      this.openairePubsNum = data[0];
                      this.openairePubs = data[1];
                      this.openairePubsStatus = this.errorCodes.DONE;
                      if(this.openairePubsNum == 0){
                        this.openairePubsStatus = this.errorCodes.NONE;
                      }
                  }else {
                    this.openairePubsStatus = this.errorCodes.ERROR;
                  }
               },
              err => {
                this.openairePubsStatus = this.errorCodes.ERROR;
                console.log(err.status);
              }
            );
          }
  }

  private searchOrcid (term: string) {
    if(this.DOIs.length > 0){
      this.orcidStatus = this.errorCodes.NONE;
      return;
    }
    this.orcidStatus = this.errorCodes.LOADING;
    this.authorIds = new Array<string>();
    this.authorGivenNames = new Array<string>();
    this.authorFamilyNames = new Array<string>();

    this.getOrcidAuthor(term);

    console.info('searchOrcid in searchOrcid file');
   }

  private readData(data: any) {
    this.authorIds.push(data[2].path);

    if(data[0] != null) {
      this.authorGivenNames.push(data[0].value);
    } else {
      this.authorGivenNames.push("");
    }
    if(data[1] != null) {
      this.authorFamilyNames.push(data[1].value);
    } else {
      this.authorFamilyNames.push("");
    }
  }

  private  getOrcidAuthor (term: string)  {
    this.orcidResultsNum = null;

    //passing structures in order to fill them in service
    this._searchOrcidService.searchOrcidAuthor(term, this.authorIds,
      this.authorGivenNames, this.authorFamilyNames, this.properties).subscribe(
        data => {
          if(data != null && data == true) {
            this.getOrcidResultsByIndex(0);
          }

          this.orcidStatus = this.errorCodes.NONE;

        },
        err => this.errorHandler(err, term)

      );
    }

    private  errorHandler(err: any, term: string) {
      if(err.status == 404){
        this.getOrcidAuthors(term);
      } else {
        this.orcidStatus = this.errorCodes.ERROR;
        console.log(err.status);

      }
    }

    private  getOrcidAuthors (term: string)  {
      this.orcidResultsNum = null;
      this.selectAuthorId = "0";
          this.orcidStatus = this.errorCodes.LOADING;
      //passing structures in order to fill them in service
      this._searchOrcidService.searchOrcidAuthors(term, this.authorIds,
        this.authorGivenNames, this.authorFamilyNames, this.properties).subscribe(
          data => {
            if(data != null && data == true) {
              this.getOrcidResultsByIndex(0);
            }else{
              this.orcidStatus = this.errorCodes.ERROR;
            }

          },
          err => {
            this.orcidStatus = this.errorCodes.ERROR;
            console.log(err.status);
          }
        );
      }


      private    getOrcidResultsByIndex (index:number) {
        if(this.authorIds.length > index) {
          this.orcidStatus = this.errorCodes.LOADING;
          let id = this.authorIds[index];
          this.authorGivenName = this.authorGivenNames[index];
          this.authorFamilyName = this.authorFamilyNames[index];
          this.getOrcidResultsById(id);
        }
      }
      private    getOrcidResultsById (id:string) {
          if(id=="0"){
            return;
          }
          var index = this.authorIds.indexOf(id);
          this.authorGivenName = this.authorGivenNames[index];
          this.authorFamilyName = this.authorFamilyNames[index];
          this.authorId = id;
          console.info("getOrcidResultsById: "+id);
            this.orcidStatus = this.errorCodes.LOADING;
          this._searchOrcidService.searchOrcidPublications(id, this.properties).subscribe(
            data => {
              if(data != null) {
                this.orcidResults=data['orcid-work'];
                this.orcidResultsNum = data['orcid-work'].length;
                this.orcidPage = 1;
                if((this.orcidResultsNum % this.size) == 0){
                  this.totalPages=parseInt(''+(this.orcidResultsNum/this.size));
                } else{
                  this.totalPages=parseInt(''+(this.orcidResultsNum/this.size+1));
                }

                this.orcidResultsToShow = this.orcidResults.slice(0,10);

                this.orcidStatus = this.errorCodes.DONE;
                if(this.orcidResultsNum == 0){
                  this.orcidStatus = this.errorCodes.NONE;
                }
              } else {
                this.orcidResultsNum = 0;
                this.totalPages=0;
                this.orcidStatus = this.errorCodes.NONE;
              }

            },
            err => {
              console.log(err.status);
              this.orcidStatus = this.errorCodes.ERROR;
            }
          );


      }

/*
Is it USED???
private  remove(item){
     this.warningMessage = "";
     this.infoMessage = "";
        var index:number =this.selectedResults.indexOf(item);
        item.selected=false;
         if (index > -1) {
            this.selectedResults.splice(index, 1);
            // this.publicationsChange.emit({
            //   value: this.selectedResults
            // });
        }

   }*/
private crossrefPageChange($event) {
     this.crossrefPage=$event.value;
     this.crossrefResults=[];
     console.log("Crossref chaenged "+this.crossrefPage);
     this.getCrossrefResults(this.keyword,this.size,this.crossrefPage);
}
private orcidPageChange($event) {
     this.orcidPage=$event.value;
     this.orcidResultsToShow=[];
     this.orcidResultsToShow = this.orcidResults.slice(($event.value-1)*this.size, $event.value*this.size);
}
private openairePubsPageChange($event) {
     this.openairePubsPage=$event.value;
     this.searchOpenairePubs(this.keyword,this.size,this.openairePubsPage);
}
datacitePageChange($event) {
  this.datacitePage=$event.value;
  this.dataciteResults=[];
  this.searchDatacite(this.keyword,10,this.datacitePage);
  this.warningMessage = "";
  this.infoMessage = "";

}
openaireDataPageChange($event) {
  this.openaireDataPage=$event.value;
  this.openaireData=[];
  this.searchOpenaireData(this.keyword,10,this.openaireDataPage);
  this.warningMessage = "";
  this.infoMessage = "";

}
openaireSoftwarePageChange($event) {
  this.openaireSoftwarePage=$event.value;
  this.openaireSoftware=[];
  this.searchOpenaireSoftware(this.keyword,10,this.openaireSoftwarePage);
  this.warningMessage = "";
  this.infoMessage = "";

}

  private   isSelected(id:string){

      var found:boolean = false;
      this.warningMessage = "";
      for (var _i = 0; _i < this.selectedResults.length; _i++) {
          let item = this.selectedResults[_i];
          if(item.id == id){
                found=true;
                this.warningMessage = "Publication already in selected list";
          }
       }
       return found;


    }
    // isSelected(id:string){
    //
    //   var found:boolean = false;
    //   this.warningMessage = "";
    //   for (var _i = 0; _i < this.selectedResults.length; _i++) {
    //       let item = this.selectedResults[_i];
    //       if(item.id == id){
    //             found=true;
    //             break;
    //        }
    //    }
    //    return found;
    // }
    private searchDatacite (term: string, size : number, page : number) {
      this.getDataciteResults(term,size,page);
      this.warningMessage = "";
      this.infoMessage = "";

     }
     private searchOpenaireData (term: string, size : number, page : number) {
       if(this.DOIs.length > 0 ){
         this.openaireDataStatus = this.errorCodes.LOADING;
         this._searchDatasetsService.searchDatasetsByDois(this.DOIs, null, page, size, [], this.properties).subscribe(
           data => {
               if(data != null) {
                   this.openaireDataPage=page;
                   this.openaireDataNum = data[0];
                   this.openaireData = data[1];
                   this.openaireDataStatus = this.errorCodes.DONE;
                   if(this.openaireDataNum == 0){
                      this.openaireDataStatus = this.errorCodes.NONE;
                   }
               }
            },
           err => {
             this.openaireDataStatus = this.errorCodes.ERROR;
             console.log(err.status);
           }
         );
       }else{
         this._searchDatasetsService.searchDatasets('q='+term+'', null, page, size, [], this.properties).subscribe(
                     data => {
                         if(data != null) {
                             this.openaireDataPage=page;
                             this.openaireDataNum = data[0];
                             this.openaireData = data[1];
                             this.openaireDataStatus = this.errorCodes.DONE;
                             if(this.openaireDataNum == 0){
                                this.openaireDataStatus = this.errorCodes.NONE;
                             }
                         }
                      },
                     err => {
                       this.openaireDataStatus = this.errorCodes.ERROR;
                       console.log(err.status);
                     }
                   );
                }
       this.warningMessage = "";
       this.infoMessage = "";

      }
      private searchOpenaireSoftware (term: string, size : number, page : number) {
        if(this.DOIs.length > 0 ){
          this.openaireSoftwareStatus = this.errorCodes.LOADING;
          this._searchSoftwareService.searchSoftwareByDois(this.DOIs, null, page, size, [], this.properties).subscribe(
            data => {
                if(data != null) {
                    this.openaireSoftwarePage=page;
                    this.openaireSoftwareNum = data[0];
                    this.openaireSoftware = data[1];
                    this.openaireSoftwareStatus = this.errorCodes.DONE;
                    if(this.openaireSoftwareNum == 0){
                       this.openaireSoftwareStatus = this.errorCodes.NONE;
                    }
                }
             },
            err => {
              this.openaireSoftwareStatus = this.errorCodes.ERROR;
              console.log(err.status);
            }
          );
        }else{
          this._searchSoftwareService.searchSoftware('q='+term+'', null, page, size, [], this.properties).subscribe(
                      data => {
                          if(data != null) {
                              this.openaireSoftwarePage=page;
                              this.openaireSoftwareNum = data[0];
                              this.openaireSoftware = data[1];
                              this.openaireSoftwareStatus = this.errorCodes.DONE;
                              if(this.openaireSoftwareNum == 0){
                                 this.openaireSoftwareStatus = this.errorCodes.NONE;
                              }
                          }
                       },
                      err => {
                        this.openaireSoftwareStatus = this.errorCodes.ERROR;
                        console.log(err.status);
                      }
                    );
                 }
        this.warningMessage = "";
        this.infoMessage = "";

       }
   private getDataciteResults (term: string, size : number, page : number)  {
     console.log("getDataciteResults  + "+this.properties.searchDataciteAPIURL)
       this._searchDataciteService.searchDataciteResults(term, size, page, this.properties).subscribe(
        data => {
          this.dataciteResults = data.data;
          this.datacitePage=page;
          this.dataciteResultsNum = data.meta.total;
          this.dataciteStatus = this.errorCodes.DONE;


        },
        err => {
          this.dataciteStatus = this.errorCodes.ERROR;
          console.log(err);
        }

      );
      }

   add(item, itemId,itemSource,itemType, itemUrl, itemTitle, date, accessmode){

     console.log(' adding ' + itemType + " From " + itemSource+"  "+ itemTitle);
     var result: ClaimResult = ClaimResult.generateResult(item, itemId,itemSource,itemType, itemUrl, itemTitle, date, accessmode);


    if (itemSource == 'orcid'){
        if(result.authors.length ==0 ){
          result.authors.push(this.authorGivenName + ', '+ this.authorFamilyName);
        }
      }
      var found:boolean = this.isSelected( result.id);

      this.warningMessage = "";
       if (!found) {
        this.selectedResults.push(result);

               UIkit.notification({
                  message : 'A new research result is selected.',
                  status  : 'primary',
                  timeout : 1000,
                  pos     : 'top-center'
              });


      }else{
        this.warningMessage = "Research Data already in selected list";
        UIkit.notification({
            message : 'The  research result is already on your list.',
            status  : 'warning',
            timeout : 1000,
            pos     : 'top-center'
        });
      }

    }

    public searchSourceChanged(source){
      this.searchSource = source;
      this.activeTab = (source == "openaire" || source == "all")?"openairePub":source;
      if(this.keyword && this.keyword.length > 0){
        this.search(true);
      }
    }
    public clickTab(tab){
       this.activeTab = tab;
    }
}