D-Net

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

import { ActivatedRoute} from '@angular/router';

import {Location} from '@angular/common';

import { Filter, Value} from '../searchUtils/searchHelperClasses.class';

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

import {SearchResult}     from '../../utils/entities/searchResult';

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

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

import {SearchPageComponent } from '../searchUtils/searchPage.component';

import {SearchUtilsClass} from '../searchUtils/searchUtils.class';

import {DOI} from '../../utils/string-utils.class';

@Component({

    selector: 'search-publications',

    template: `

    <search-page pageTitle="Search Publications"

                  formPlaceholderText = "Search for Publications"

                 type="publications" entityType="publication"

                 [(filters)] = "filters" [(results)] = "results"

                 [(searchUtils)] = "searchUtils"   [(baseUrl)] = baseUrl

                 (queryChange)="queryChanged($event)"

                 [csvParams]="csvParams" csvPath="publications"

                 advancedSearchLink="/search/advanced/publications"

                 [disableForms]="disableForms"

                 [loadPaging]="loadPaging"

                 [oldTotalResults]="oldTotalResults"

                 searchFormClass="publicationsSearchForm">

    </search-page>

    `

})

export class SearchPublicationsComponent {

  private errorCodes: ErrorCodes;

  public results =[];

  public filters =[];

  public searchUtils:SearchUtilsClass = new SearchUtilsClass();

  public baseUrl:string = "";

  public sub: any;

  public subResults: any;

  public searchFields:SearchFields = new SearchFields();

  public refineFields: string[] =  this.searchFields.RESULT_REFINE_FIELDS;

  public fieldIdsMap=this.searchFields.RESULT_FIELDS;

    //:  { [key:string] :{ name:string, operator:string, type:string, indexField:string, equalityOperator:string  }} = this.searchFields.PUBLICATION_FIELDS_MAP;

  public urlParams : Map<string, string>;

  @ViewChild (SearchPageComponent) searchPage : SearchPageComponent ;

  public _location:Location;

  public CSV: any = {  "columnNames":  ["Title", "Authors", "Publication Year", "DOI",

                                       /*"Download From", "Publication type", "Journal",*/

                                       "Funder", "Project Name (GA Number)", "Access"],

                      "export":[]

                  };

  public CSVDownloaded = false;

  public csvParams: string;

  public disableForms: boolean = false;

  public loadPaging: boolean = true;

  public oldTotalResults: number = 0;

  constructor (private route: ActivatedRoute, private _searchPublicationsService: SearchPublicationsService ) {

    this.errorCodes = new ErrorCodes();

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

    this.searchUtils.page =1;

    this.baseUrl = OpenaireProperties.getLinkToSearchPublications();

  }

  public ngOnInit() {

    this.searchPage.refineFields = this.refineFields;

    this.searchPage.fieldIdsMap = this.fieldIdsMap;

    this.searchPage.type = "publications";

    var firstLoad =true;

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

        if(params['page'] && this.searchUtils.page != params['page']) {

          this.loadPaging = false;

          this.oldTotalResults = this.searchUtils.totalResults;

        }

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

        var refine = true;

        if(this.searchUtils.page != ((params['page']=== undefined)?1:+params['page']) && this.filters && !firstLoad){

          refine = false;

        }

        firstLoad = false;

        this.searchUtils.page = (params['page']=== undefined)?1:+params['page'];

        var queryParameters = this.searchPage.getQueryParametersFromUrl(params);

        this._getResults(queryParameters, refine, this.searchUtils.page, this.searchUtils.size);

    });

  }

  public ngOnDestroy() {

    if(this.sub){

      this.sub.unsubscribe();

    }

    if(this.subResults){

      this.subResults.unsubscribe();

    }

  }

public getResultsForEntity(entity:string, id:string, page: number, size: number){

  var parameters = "";

  if(entity == "project") {

    parameters = "projects/"+id;

  }

  if(parameters != "") {

      this._searchPublicationsService.searchPublicationsForEntity(parameters, page, size).subscribe(

          data => {

              this.searchUtils.totalResults = data[0];

              console.info("search Publications for "+entity+": [Parameters:"+parameters+" ]  [total results:"+this.searchUtils.totalResults+"]");

              this.results = data[1];

              //var errorCodes:ErrorCodes = new ErrorCodes();

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

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

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

              }

          },

          err => {

              console.log(err);

               //TODO check erros (service not available, bad request)

              // if( ){

              //   this.searchUtils.status = ErrorCodes.ERROR;

              // }

              //var errorCodes:ErrorCodes = new ErrorCodes();

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

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

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

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

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

              } else {

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

              }

          }

      );

  }

}

public getResultsForDataproviders(id:string, resultsFrom:string, page: number, size: number){

  var parameters;

  if(resultsFrom == "collectedFrom") {

      parameters = "publications?fq=collectedfromdatasourceid exact "+'"'+id+'"';

  } else if(resultsFrom == "hostedBy") {

      parameters = "publications?fq=resulthostingdatasourceid exact "+'"'+id+'"';

  }

  if(parameters != "") {

      this._searchPublicationsService.searchPublicationsForDataproviders(parameters, page, size).subscribe(

          data => {

              this.searchUtils.totalResults = data[0];

              console.info("search Publications for Dataproviders: [Parameters:"+parameters+" ]  [total results:"+this.searchUtils.totalResults+"]");

              this.results = data[1];

              //var errorCodes:ErrorCodes = new ErrorCodes();

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

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

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

              }

          },

          err => {

              console.log(err);

               //TODO check erros (service not available, bad request)

              // if( ){

              //   this.searchUtils.status = ErrorCodes.ERROR;

              // }

              //var errorCodes:ErrorCodes = new ErrorCodes();

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

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

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

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

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

              } else {

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

              }

          }

      );

  }

}

public getResults(keyword:string,refine:boolean, page: number, size: number){

  var parameters = "";

  if(keyword.length > 0){

    var DOIs:string[] = DOI.getDOIsFromString(keyword);

    var doisParams = "";

    for(var i =0 ;i < DOIs.length; i++){

      doisParams+=(doisParams.length > 0?"&":"")+'doi="'+ DOIs[i]+'"';

    }

    if(doisParams.length > 0){

        parameters +=  "&"+doisParams;

    }else{

      parameters = "q=" +  keyword;

    }

  }

  this._getResults(parameters,refine,page,size);

}

private _getResults(parameters:string,refine:boolean, page: number, size: number){

    this.csvParams = parameters;

  // if(!refine && !this.searchPage){

  //     this.searchPage = new SearchPageComponent(this._location);

  // }

  //var errorCodes:ErrorCodes = new ErrorCodes();

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

  //this.searchPage.openLoading();

  this.disableForms = true;

  this.results = [];

  this.searchUtils.totalResults = 0;

  this.subResults = this._searchPublicationsService.searchPublications(parameters,(refine)?this.searchPage.getRefineFieldsQuery():null, page, size, this.searchPage.getFields()).subscribe(

      data => {

          this.searchUtils.totalResults = data[0];

          console.info("search Publications: [Parameters:"+parameters+" ]  [total results:"+this.searchUtils.totalResults+"]");

          this.results = data[1];

          if(refine){

            this.filters = data[2];

          }

          this.searchPage.checkSelectedFilters(this.filters);

          this.searchPage.updateBaseUrlWithParameters(this.filters);

          //var errorCodes:ErrorCodes = new ErrorCodes();

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

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

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

          }

          //this.searchPage.closeLoading();

          this.disableForms = false;

          if(this.searchUtils.status == this.errorCodes.DONE) {

            // Page out of limit!!!

            let totalPages:any = this.searchUtils.totalResults/(this.searchUtils.size);

            if(!(Number.isInteger(totalPages))) {

                totalPages = (parseInt(totalPages, 10) + 1);

            }

            if(totalPages < page) {

              this.searchUtils.totalResults = 0;

              this.searchUtils.status = this.errorCodes.OUT_OF_BOUND;

            }

          }

      },

      err => {

          console.log(err);

           //TODO check erros (service not available, bad request)

          // if( ){

          //   this.searchUtils.status = ErrorCodes.ERROR;

          // }

          //var errorCodes:ErrorCodes = new ErrorCodes();

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

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

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

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

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

          } else {

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

          }

          //this.searchPage.closeLoading();

          this.disableForms = false;

      }

  );

}

/*

public getAggregatorResults(id:string, page: number, size: number){

  this.subResults = this._searchPublicationsService.searchAggregators('&fq=collectedfromdatasourceid exact "'+id+'"',"&refine=true&fields=resulthostingdatasource" , page, size).subscribe(

      data => {

          this.results = data;

          var errorCodes:ErrorCodes = new ErrorCodes();

          this.searchUtils.status = errorCodes.DONE;

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

            this.searchUtils.status = errorCodes.NONE;

          }

      },

      err => {

          console.log(err);

           //TODO check erros (service not available, bad request)

          // if( ){

          //   this.searchUtils.status = ErrorCodes.ERROR;

          // }

          var errorCodes:ErrorCodes = new ErrorCodes();

          this.searchUtils.status = errorCodes.ERROR;

      }

  );

}*/

  public queryChanged($event) {

    this.loadPaging = true;

    var parameters = $event.value;

    console.info("queryChanged: Execute search query "+parameters);

    console.info("Search Pubs::page "+this.searchUtils.page);

    this._getResults(parameters, true, this.searchUtils.page, this.searchUtils.size);

  }

}