D-Net

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

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

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

export class FetchOrganizations {

  private errorCodes: ErrorCodes;

  public results =[];

  public searchUtils:SearchUtilsClass = new SearchUtilsClass();

  public sub: any;

  public subResults: any;

  constructor ( private _searchOrganizationsService: SearchOrganizationsService ) {

    this.errorCodes = new ErrorCodes();

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

  }

  public ngOnDestroy() {

    if(this.sub){

      this.sub.unsubscribe();

    }

    if(this.subResults){

      this.subResults.unsubscribe();

    }

  }

    public getResultsByKeyword(keyword:string , page: number, size: number){

      var parameters = "";

      if(keyword.length > 0){

        parameters = "q=" + keyword;

      }

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

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

      this.subResults = this._searchOrganizationsService.searchOrganizations(parameters, null, page, size, []).subscribe(

          data => {

              this.searchUtils.totalResults = data[0];

              console.info("search Organizations: [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;

              }

           }

      );

    }

}