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

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

import {ErrorCodes} from '../../openaireLibrary/utils/properties/errorCodes';
import {ErrorMessagesComponent}    from '../../openaireLibrary/utils/errorMessages.component';
import {SearchFields} from '../../openaireLibrary/utils/properties/searchFields';
import {SearchPageTableViewComponent } from '../../openaireLibrary/searchPages/searchUtils/searchPageTableView.component';
import {SearchCustomFilter, SearchUtilsClass} from '../../openaireLibrary/searchPages/searchUtils/searchUtils.class';
import {EnvProperties} from '../../openaireLibrary/utils/properties/env-properties';
import {SearchCommunityProjectsService} from '../../openaireLibrary/connect/projects/searchProjects.service';
import {PiwikHelper} from '../../utils/piwikHelper';
import {ConnectHelper} from '../../openaireLibrary/connect/connectHelper';
import {properties} from "../../../environments/environment";

@Component({
    selector: 'openaire-search-projects',
    template: `

    <search-page-table    pageTitle="Search Projects"
                          type="projects" entityType="project" [filters] = "filters"
                          [results] = "results"  [searchUtils] = "searchUtils"
                          [columnNames]="columnNames"
                          [showResultCount]=false
                          openaireLink="https://beta.explore.openaire.eu/search/find/projects"
                          [disableForms]="disableForms"
                          [enableSearchView]="enableSearchView"
                          searchFormClass="projectsTableSearchForm"
                          formPlaceholderText="Search by project title, grant id, funder... "
                          [piwikSiteId]="piwikSiteId" [hasPrefix]="false" [customFilter]="customFilter" [enableEntitySelection]="true"
                          [includeOnlyResultsAndFilter]="false" [showBreadcrumb]="true">
    </search-page-table>
    `

})
export class OpenaireSearchProjectsComponent {
  private errorCodes: ErrorCodes;
  private errorMessages: ErrorMessagesComponent;
  public columnNames = ['Project', 'GrantId', 'Funder'];
  public results =[];
  public filters =[];
  public searchUtils:SearchUtilsClass = new SearchUtilsClass();
  public sub: any; public subResults: any;
  public _location:Location;
  public searchFields:SearchFields = new SearchFields();
  public refineFields: string[] = [];// =  this.searchFields.JOURNAL_FIELDS;
  properties:EnvProperties;

  public disableForms: boolean = false;
  public enableSearchView: boolean = true;

  private communityId: string = '';

  @ViewChild (SearchPageTableViewComponent) searchPage : SearchPageTableViewComponent ;
  piwikSiteId = null;
  customFilter: SearchCustomFilter = null;
  initialLoad = true;
  constructor (private route: ActivatedRoute, private _searchProjectsService: SearchCommunityProjectsService) {
    this.errorCodes = new ErrorCodes();
    this.errorMessages = new ErrorMessagesComponent();
    this.searchUtils.status = this.errorCodes.LOADING;
  }

  public ngOnInit() {

    this.properties = properties;

    this.sub =  this.route.queryParams.subscribe(params => {
      this.communityId  = ConnectHelper.getCommunityFromDomain(this.properties.domain);
      if(!this.communityId) {
        this.communityId = params['communityId'];
      }
      this.customFilter = new SearchCustomFilter("Community", "communityId", this.communityId, "");
      this.piwikSiteId = PiwikHelper.getSiteId(this.communityId,this.properties.environment);
      this.searchUtils.keyword =  (params['fv0']?params['fv0']:(params['keyword']?params['keyword']:''));
      if(this.initialLoad) {
        this.initialLoad = false;
        this._getResults(params);
      }else{
        this.searchPage.goTo(1);
      }
    });
  }

  public ngOnDestroy() {
    if(this.sub){
      this.sub.unsubscribe();
    }
    if(this.subResults){
      this.subResults.unsubscribe();
    }
  }
    private _getResults(params){
      this.searchUtils.status = this.errorCodes.LOADING;
      this.disableForms = true;
      this.enableSearchView = false;
      this.results = [];
      this.searchUtils.totalResults = 0;

      let size: number = 0;

      this.subResults = this._searchProjectsService.searchProjects(this.properties, this.communityId).subscribe(
          data => {
            // data=data.slice(0,150)
            this.filters = this.createFilters(data, params);

            this.searchUtils.totalResults = data.length;
            //console.info("search Projects [total results:"+this.searchUtils.totalResults+"]");
            this.results = data;

            this.searchPage.checkSelectedFilters(this.filters);

            //var errorCodes:ErrorCodes = new ErrorCodes();
            this.searchUtils.status = this.errorCodes.DONE;
            if(this.searchUtils.totalResults == 0 ){
              this.searchUtils.status = this.errorCodes.NONE;
            } else {
              this.searchPage.triggerInitialLoad();
              this.searchPage.transform(this.results, this.searchUtils);
              this.disableForms = false;
            }
            this.enableSearchView = true;
          },
          err => {
            /*
            console.log(err);
             //TODO check erros (service not available, bad request)

            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.handleError("Error getting projects for community with id: "+this.communityId, err);
            this.searchUtils.status = this.errorMessages.getErrorCode(err.status);

            this.enableSearchView = true;
          }
      );
    }
  private setFilters(){
    //TODO set filters from
  }

  private createFilters(data, params):Filter[] {
    let length = Array.isArray(data) ? data.length : 1;

    var filter_names=["Funder"];
    var filter_ids=["relfunder"];
    var searchFields = new SearchFields();
    var filter_original_ids = ["relfunder"];//searchFields.JOURNAL_FIELDS;

    this.refineFields = ["relfunder"];
    this.searchPage.refineFields = this.refineFields;
    this.searchPage.getParametersFromUrl(params);

    var value_names=[/*["Journal", "Journal Aggregator\/Publisher"]*/];
    var value_original_ids=[/*["pubsrepository::journal", "aggregator::pubsrepository::journals"]*/];

    var funders = new Set<String>();
    var value_name = [];
    var value_original_id = [];
    let i;
    for(i=0; i<length; i++) {
      let resData = Array.isArray(data) ? data[i] : data;
      if(resData.funder && !funders.has(resData.funder)) {
        funders.add(resData.funder);
        value_name.push(resData.funder);
        value_original_id.push(resData.funder.trim());
      }
    }
    value_names.push(value_name);
    value_original_ids.push(value_original_id);

    var filters: Filter[] =[];
    for(i =0 ; i < filter_names.length;i++){
      if(value_names[i].length > 0) {
        var values: Value[] = [];
        for (var j = 0; j < value_names[i].length; j++) {
          var value: Value = {name: value_names[i][j], id: value_original_ids[i][j], number: j, selected: false}
          values.push(value);
        }
        var filter: Filter = {
          title: filter_names[i],
          filterId: filter_ids[i],
          originalFilterId: filter_original_ids[i],
          values: values,
          countSelectedValues: 0,
          "filterOperator": 'or',
          valueIsExact: true,
          filterType: "checkbox"
        };
        filters.push(filter);
      }
    }
    return filters;
  }

  private handleError(message: string, error) {
    console.error("Projects simple Search Page: "+message, error);
  }
}