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 {SearchProjectsService} from '../../services/searchProjects.service';

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

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

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

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

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

@Component({

    selector: 'search-projects',

    template: `

    <search-page pageTitle="Search Projects" type="project" [(filters)] = "filters"

                 [(results)] = "results"

                 [(searchUtils)] = "searchUtils"

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

    </search-page>

     `

})

export class SearchProjectsComponent {

  public results =[];

  public filters: Filter[] =[];

  public baseUrl:string;

  public searchUtils:SearchUtilsClass = new SearchUtilsClass();

  public sub: any;

  public subResults: any;

  public searchFields:SearchFields = new SearchFields();

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

  public fieldIdsMap = this.searchFields.PROJECT_FIELDS;

  public urlParams : Map<string, string>;

  public _location:Location;

  @ViewChild (SearchPageComponent) searchPage : SearchPageComponent ;

  constructor (private route: ActivatedRoute, private _searchProjectsService: SearchProjectsService) {

    console.info(" constructor SearchProjectsComponent "+this.refineFields.length);

    var errorCodes:ErrorCodes = new ErrorCodes();

    this.searchUtils.status =errorCodes.LOADING;

    this.baseUrl = OpenaireProperties.getLinkToSearchProjects();

  }

  public ngOnInit() {

    this.searchPage.refineFields = this.refineFields;

    this.searchPage.fieldIdsMap = this.fieldIdsMap;

    console.info(" ngOnInit SearchProjectsComponent "+this.refineFields.length);

    //get refine field filters  from url parameters

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

        //get keyword from url parameters

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

        //get page from url parameters

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

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

        this._getResults(queryParameters, true, 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){

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

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

    }

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

        data => {

            this.searchUtils.totalResults = data[0];

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

            this.results = data[1];

            this.filters = data[2];

            this.searchPage.checkSelectedFilters(this.filters);

            // this.filters = this.searchPage.checkSelectedFilters(data[2]);

            this.searchPage.updateBaseUrlWithParameters(this.filters);

            var errorCodes:ErrorCodes = new ErrorCodes();

            this.searchUtils.status = errorCodes.DONE;

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

              this.searchUtils.status = errorCodes.NONE;

            }

        },

        err => {

            console.error(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 getResultsForDataproviders(id:string, page: number, size: number){

    this._searchProjectsService.getProjectsforDataProvider(id, page, size).subscribe(

        data => {

            this.searchUtils.totalResults = data[0];

            console.info("search Projects for Dataproviders: [Id:"+id+" ]  [total results:"+this.searchUtils.totalResults+"]");

            this.results = data[1];

            var errorCodes:ErrorCodes = new ErrorCodes();

            this.searchUtils.status = errorCodes.DONE;

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

              this.searchUtils.status = errorCodes.NONE;

            }

        },

        err => {

            console.error(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.urlParams = undefined;

    var parameters = $event.value;

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

  }

}