D-Net

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

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

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

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

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

import {ErrorMessagesComponent} from '../utils/errorMessages.component';

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

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

import {EnvProperties} from '../utils/properties/env-properties';

import {NewSearchPageComponent} from "./searchUtils/newSearchPage.component";

import {RangeFilter} from "../utils/rangeFilter/rangeFilterHelperClasses.class";

import {properties} from "../../../environments/environment";

@Component({

    selector: 'search-projects',

    template: `

      <new-search-page

        pageTitle="{{(simpleView?'':'Advanced ')}} Search for {{ 'projects' | titlecase }}"

        entityType="project"

        type="projects"

        [results]="results"

        [searchUtils]="searchUtils"

        [sortedByChanged]="searchUtils.sortBy" [resultsPerPageChanged]="searchUtils.size"

        [fieldIds]="fieldIds" [fieldIdsMap]="fieldIdsMap" [selectedFields]="selectedFields"

        [csvParams]="csvParams" csvPath="projects"

        [simpleSearchLink]="simpleSearchLink" [advancedSearchLink]="advancedSearchLink"

        [disableForms]="disableForms"

        [disableRefineForms]="disableRefineForms"

        [loadPaging]="loadPaging"

        [oldTotalResults]="oldTotalResults"

        [openaireLink]=openaireLink

        [piwikSiteId]=piwikSiteId [hasPrefix]="hasPrefix"

        searchFormClass="projectsSearchForm"

        [includeOnlyResultsAndFilter]="includeOnlyResultsAndFilter"

        [filters]="filters"

        [rangeFilters]="rangeFilters" [rangeFields]="rangeFields"

        [simpleView]="simpleView" formPlaceholderText="Search by title, acronym, project code..."

        [showSwitchSearchLink]="showSwitchSearchLink"

        [sort]="false" [showBreadcrumb]="showBreadcrumb"

      >

      </new-search-page>

    `

 })

export class SearchProjectsComponent {

  private errorCodes: ErrorCodes;

  private errorMessages: ErrorMessagesComponent;

@Input() piwikSiteId = null;

@Input() customFilter:SearchCustomFilter= null;

  public results =[];

  public filters =[];

  public rangeFilters: RangeFilter[] = [];

  public searchUtils:SearchUtilsClass = new SearchUtilsClass();

  public searchFields:SearchFields = new SearchFields();

  public fieldIds:  string[] = this.searchFields.PROJECT_ADVANCED_FIELDS;

  public fieldIdsMap = this.searchFields.PROJECT_FIELDS;

  public rangeFields:string[][] = this.searchFields.PROJECT_RANGE_FIELDS;

  public selectedFields:AdvancedField[] =  [];

  properties:EnvProperties;

  public resourcesQuery = "(oaftype exact project)";

  public csvParams: string;

  public disableForms: boolean = false;

  public disableRefineForms: boolean = false;

  public loadPaging: boolean = true;

  public oldTotalResults: number = 0;

  public pagingLimit: number = 0;

  public isPiwikEnabled;

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

  @ViewChild(NewSearchPageComponent) searchPage: NewSearchPageComponent;

  @Input() simpleView: boolean = true;

  @Input() simpleSearchLink: string = "";

  advancedSearchLink: string = "";

  @Input() hasPrefix: boolean = true;

  @Input() openaireLink: string;

  @Input() includeOnlyResultsAndFilter: boolean = false;

  @Output() searchPageUpdates = new EventEmitter();

  @Input() showSwitchSearchLink:boolean = true;

  @Input() showBreadcrumb: boolean = false;

  subs: any[] = [];

  searchResultsSub: any;

  searchFiltersSub: any;

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

    this.results =[];

    this.errorCodes = new ErrorCodes();

    this.errorMessages = new ErrorMessagesComponent();

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

    this.searchUtils.refineStatus = this.errorCodes.LOADING;

  }

  ngOnInit() {

    this.properties= properties;

    if (!this.simpleSearchLink) {

      this.simpleSearchLink = this.properties.searchLinkToProjects;

    }

    this.advancedSearchLink = this.properties.searchLinkToAdvancedProjects;

    this.searchUtils.baseUrl = (this.simpleView)?this.simpleSearchLink:this.advancedSearchLink;

     this.pagingLimit = properties.pagingLimit;

     this.isPiwikEnabled = properties.enablePiwikTrack;

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

    var firstLoad = true;

    this.subs.push(this.route.queryParams.subscribe(params => {

      this.loadPaging = true;

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

        this.loadPaging = false;

        this.oldTotalResults = this.searchUtils.totalResults;

      }

      var refine = true;

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

        refine = false;

      }

      if (params['size'] != undefined && this.filters && !firstLoad && this.searchUtils.size != params['size']) {

        refine = false;

      }

      let page = (params['page']=== undefined)?1:+params['page'];

      this.searchUtils.page = ( page <= 0 ) ? 1 : page;

      this.searchUtils.size = (params['size']=== undefined)?10:+params['size'];

      if(this.searchUtils.size != 5 && this.searchUtils.size != 10 && this.searchUtils.size != 20 && this.searchUtils.size != 50) {

        this.searchUtils.size = 10;

      }

      this.searchPage.fieldIds = this.fieldIds;

      this.selectedFields = [];

      this.searchPage.prepareSearchPage(this.fieldIds, this.selectedFields, this.refineFields, this.rangeFields, this.fieldIdsMap,this.customFilter,params, "project");

      if(refine) {

        this._getFilters(this.searchPage.getSearchAPIQueryForAdvancedSearhFields(), this.searchUtils.page, 0, "", true, this.searchPage.getSearchAPIQueryForRangeFields(params)+this.searchPage.getSearchAPIQueryForRefineFields(params, firstLoad));

      } else {

        this.searchUtils.refineStatus = this.errorCodes.DONE;

      }

      this.getResults(this.searchPage.getSearchAPIQueryForAdvancedSearhFields(),  this.searchUtils.page, this.searchUtils.size, refine, this.searchPage.getSearchAPIQueryForRangeFields(params)+this.searchPage.getSearchAPIQueryForRefineFields(params, firstLoad));

      firstLoad = false;

    }));

  }

  ngOnDestroy() {

    if(this.searchResultsSub) {

      this.searchResultsSub.unsubscribe();

    }

    if(this.searchFiltersSub) {

      this.searchFiltersSub.unsubscribe();

    }

    for (let sub of this.subs) {

      sub.unsubscribe();

    }

  }

  public _getFilters(parameters: string, page: number, size: number, sortBy: string, refine: boolean, refineFieldsFilterQuery = null) {

    if (page <= this.pagingLimit || this.searchUtils.refineStatus == this.errorCodes.LOADING) {

      this.searchUtils.refineStatus = this.errorCodes.LOADING;

      this.disableRefineForms = true;

      this.searchPageUpdates.emit({disableForms: this.disableForms, disableRefineForms: this.disableRefineForms, searchUtils: this.searchUtils});

      this.searchFiltersSub = this._searchProjectsService.advancedSearchProjects(parameters,  page, size, this.properties,(refine) ? this.searchPage.getRefineFieldsQuery() : null, this.searchPage.getFields(), refineFieldsFilterQuery)

      //.switchMap(

        .subscribe(

          data => {

            let totalResults = data[0];

            let filters = data[2];

            this.filtersReturned(refine, filters, totalResults, page);

            this.searchPageUpdates.emit({disableForms: this.disableForms, disableRefineForms: this.disableRefineForms, searchUtils: this.searchUtils})

          },

          err => {

            this.handleError("Error getting projects: ", err);

            this.searchUtils.refineStatus = this.errorMessages.getErrorCode(err.status);

            this.disableRefineForms = false;

            this.searchPageUpdates.emit({disableForms: this.disableForms, disableRefineForms: this.disableRefineForms, searchUtils: this.searchUtils})

          }

        );

    }

  }

  public filtersReturned(refine: boolean, filters: Filter[], totalResults, page: number) {

    if (refine) {

      this.filters = this.searchPage.prepareFiltersToShow(filters, totalResults);

      this.rangeFilters = this.searchPage.prepareRangeFiltersToShow();

    }

    this.searchUtils.refineStatus = this.errorCodes.DONE;

    if(totalResults == 0) {

      this.searchUtils.refineStatus = this.errorCodes.NONE;

    }

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

      // Page out of limit!!!

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

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

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

      }

      if (totalPages < page) {

        this.searchUtils.refineStatus = this.errorCodes.OUT_OF_BOUND;

      }

    }

    if(this.searchUtils.refineStatus != this.errorCodes.DONE && this.searchUtils.status != this.searchUtils.refineStatus) {

      if (this.searchResultsSub) {

        this.searchResultsSub.unsubscribe();

      }

      this.resultsReturned(refine, [], totalResults, page);

    }

    this.disableRefineForms = false;

  }

  public getResults(parameters:string, page: number, size: number, refine: boolean, refineFieldsFilterQuery = null){

    if(page > this.pagingLimit) {

      size=0;

    }

    if(page <= this.pagingLimit || this.searchUtils.status == this.errorCodes.LOADING) {

      // if(parameters!= null && parameters != ''  ) {

      //   this.csvParams ="&fq=( "+this.resourcesQuery + "and (" + parameters + "))";

      // }else{

      //   this.csvParams ="&fq="+this.resourcesQuery;

      // }

      // this.csvParams += (refineFieldsFilterQuery?refineFieldsFilterQuery:'');

      //

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

      this.csvParams = (parameters ? ("&fq=("+parameters) : "") + (parameters ? ")" : "");

      this.csvParams += (refineFieldsFilterQuery ? refineFieldsFilterQuery : "");

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

      //this.searchPage.openLoading();

      this.disableForms = true;

      this.searchPageUpdates.emit({disableForms: this.disableForms, disableRefineForms: this.disableRefineForms, searchUtils: this.searchUtils});

      this.results = [];

      this.searchUtils.totalResults = 0;

      //console.info("Advanced Search for Publications: Execute search query "+parameters);

      this.searchResultsSub = this._searchProjectsService.advancedSearchProjects(parameters,  page, size, this.properties,null, this.searchPage.getFields(), refineFieldsFilterQuery).subscribe(

      //this._searchProjectsService.advancedSearchProjects(parameters,  page, size, this.properties,(refine) ? this.searchPage.getRefineFieldsQuery() : null, this.searchPage.getFields(), refineFieldsFilterQuery).subscribe(

          data => {

            let totalResults = data[0];

            let results = data[1];

            this.resultsReturned(refine, results, totalResults, page);

            this.searchPageUpdates.emit({disableForms: this.disableForms, disableRefineForms: this.disableRefineForms, searchUtils: this.searchUtils});

          },

          err => {

              //console.log(err);

              this.handleError("Error getting projects", err);

              this.searchUtils.status = this.errorMessages.getErrorCode(err.status);

              //this.searchUtils.totalResults = null;

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

              // if( ){

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

              // }

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

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

              /*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;

            this.searchPageUpdates.emit({disableForms: this.disableForms, disableRefineForms: this.disableRefineForms, searchUtils: this.searchUtils})

            this.searchPage.hideFilters = false;

          }

      );

    }

  }

  public resultsReturned(refine: boolean, results: any, totalResults, page: number) {

    this.searchUtils.totalResults = totalResults;

    this.results = results;

    if(!refine) {

      this.searchPage.buildPageURLParameters(this.filters, this.rangeFilters, false);

    }

    this.searchPage.hideFilters = false;

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

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

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

    }

    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;

      }

    }

    if(this.searchUtils.status != this.errorCodes.DONE && this.searchUtils.refineStatus != this.searchUtils.status) {

      if(this.searchFiltersSub) {

        this.searchFiltersSub.unsubscribe();

      }

      this.filtersReturned(refine, [], totalResults, page);

    }

    this.disableForms = false;

  }

  private handleError(message: string, error) {

    console.error("Projects advanced Search Page: "+message, error);

  }

}