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 {SearchOrganizationsService} from '../../services/searchOrganizations.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';

@Component({

    selector: 'search-organizations',

    template: `

    <search-page pageTitle="Search Organizations"

                  formPlaceholderText = "Search for Organizations"

                 type="organizations" entityType="organization" [(filters)] = "filters"

                 [(results)] = "results"  [(searchUtils)] = "searchUtils"

                 [baseUrl] = "baseUrl" (queryChange)="queryChanged($event)"

                 [csvParams]="csvParams" csvPath="organizations" advancedSearchLink="/search/advanced/organizations"

                 [disableForms]="disableForms"

                 [loadPaging]="loadPaging"

                 [oldTotalResults]="oldTotalResults"

                 searchFormClass="organizationsSearchForm">

    </search-page>

    `

})

export class SearchOrganizationsComponent {

  private errorCodes: ErrorCodes;

  public results =[];

  public filters =[];

  public baseUrl:string;

  public searchUtils:SearchUtilsClass = new SearchUtilsClass();

  public sub: any;

  public subResults: any;

  public searchFields:SearchFields = new SearchFields();

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

  public fieldIdsMap = this.searchFields.ORGANIZATION_FIELDS;

  public urlParams : Map<string, string>;

  public _location:Location;

  public csvParams: string;

  public disableForms: boolean = false;

  public loadPaging: boolean = true;

  public oldTotalResults: number = 0;

  @ViewChild (SearchPageComponent) searchPage : SearchPageComponent ;

  constructor (private route: ActivatedRoute, private _searchOrganizationsService: SearchOrganizationsService ) {

    this.errorCodes = new ErrorCodes();

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

    this.searchUtils.page =1;

    this.baseUrl = OpenaireProperties.getLinkToSearchOrganizations();

  }

  public ngOnInit() {

    this.searchPage.refineFields = this.refineFields;

    this.searchPage.fieldIdsMap = this.fieldIdsMap;

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

      var parameters = "";

      if(keyword.length > 0){

        parameters = "q=" + keyword;

      }

      this._getResults(parameters,refine,page,this.searchUtils.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._searchOrganizationsService.searchOrganizations(parameters,(refine)?this.searchPage.getRefineFieldsQuery():null, page, size, this.searchPage.getFields()).subscribe(

          data => {

              this.searchUtils.totalResults = data[0];

              console.info("search Organizations: [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 queryChanged($event) {

    this.loadPaging = true;

    var parameters = $event.value;

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

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

  }

}