D-Net

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

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

import {EventEmitter, ViewEncapsulation}  from '@angular/core';

import {OnInit, AfterViewInit}            from '@angular/core';

import {Location}                         from '@angular/common';

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

import {Title, Meta}                      from '@angular/platform-browser';

import {Observable, Subject}                       from 'rxjs';

import {DataTableDirective }              from 'angular-datatables';

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

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

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

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

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

import {DOI, StringUtils}                 from '../../utils/string-utils.class';

import {ModalLoading}                     from '../../utils/modal/loading.component';

import {SearchFilterComponent}            from './searchFilter.component';

import {SearchFilterModalComponent}       from './searchFilterModal.component';

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

import {PiwikService}                     from '../../utils/piwik/piwik.service';

//import {SearchDataprovidersService} from '../../services/searchDataproviders.service';

import { SEOService } from '../../sharedComponents/SEO/SEO.service';

@Component({

    selector: 'search-page-table',

    templateUrl:'searchPageTableView.component.html',

    styles: [`

      #dpTable_info, #dpTable_paginate,  #dpTable_length,  #dpTable_filter{

        display: none;

      }

      `],

      encapsulation: ViewEncapsulation.None // this used in order styles to work

  })

export class SearchPageTableViewComponent  implements OnInit, AfterViewInit {

  @Input() piwikSiteId = null;

  @Input() hasPrefix: boolean = true;

  @Input() pageTitle = "";

  @Input() results;

  @Input() filters = [];

  @Input() columnNames = [];

  @Input() type:string = "";

  @Input() entityType: string = "";

  @Input() searchUtils:SearchUtilsClass;// = new SearchUtilsClass();

  //@Output() downloadClick = new EventEmitter();

  @Input() showResultCount:boolean = true;

  @Input() showRefine:boolean = true;

  @Input() refineFields = [];

  //@Input() csvParams: string;

  //@Input() csvPath: string;

  @Input() openaireLink: string;

  @Input() searchViewLink: string;

  @Input() disableForms: boolean = false;

  @Input() enableSearchView: boolean = true;

  @Input() searchFormClass: string = "searchForm";

  @Input() formPlaceholderText = "Type Keywords...";

  @Input() mapUrl: string = "";

  @Input() mapTooltipType: string ="content providers";

  @ViewChild (ModalLoading) loading : ModalLoading ;

  private searchFieldsHelper:SearchFields = new SearchFields();

  private queryParameters: Map<string, string>  = new Map<string,string>();

  public parameterNames:string[] =[];

  public parameterValues:string[] =[];

  public isPiwikEnabled;

  @ViewChild (SearchFilterModalComponent) searchFilterModal : SearchFilterModalComponent ;

  public currentFilter: Filter;

  public errorCodes:ErrorCodes = new ErrorCodes();

  piwiksub: any;

  dtOptions: DataTables.Settings = {};

  showTable = false; filteringAdded = false;

  @ViewChild(DataTableDirective) datatableElement: DataTableDirective;

  dtTrigger: Subject<any> = new Subject(); //necessary

  properties:EnvProperties;

  url = null;

  constructor (private route: ActivatedRoute,

               private router: Router,

               private location: Location,

               private _meta: Meta,

               private _title: Title,

               private _piwikService:PiwikService,

             private seoService: SEOService) { }

  ngOnInit() {

    this.route.data

      .subscribe((data: { envSpecific: EnvProperties }) => {

        this.properties = data.envSpecific;

        this.isPiwikEnabled = data.envSpecific.enablePiwikTrack;

        if(typeof window !== 'undefined') {

          this.updateUrl(data.envSpecific.baseLink+location.pathname);

          this.url =data.envSpecific.baseLink+location.pathname;

        }

        if(typeof document !== 'undefined' && this.isPiwikEnabled){

          this.piwiksub = this._piwikService.trackView(data.envSpecific, this.pageTitle, this.piwikSiteId).subscribe();

        }

      });

        this.dtOptions = {

          "paging": true,

          "searching": false,

          "lengthChange": false,

          "pageLength": this.searchUtils.size

        };

        this.updateTitle(this.pageTitle);

        var description = "Openaire, search, repositories, open access, type, content provider, funder, project, " + this.type + "," +this.pageTitle;

        this.updateDescription(description);

        this.seoService.createLinkForCanonicalURL(this.properties.baseLink+this.router.url,false);

   }

  ngOnDestroy() {

     if(this.piwiksub){

        this.piwiksub.unsubscribe();

      }

      try{

        $.fn['dataTable'].ext.search.pop();

      }catch(e){

        console.error("An error occured in ngOnDestroy of SearchPageTableViewComponent ", e)

    }

  }

    ngAfterViewInit(): void {

      try{

       $.fn['dataTable'].ext.search.push((settings, data, dataIndex) => {

//console.info(dataIndex+": "+data);

//console.info(this.results);

          //if (this.filterData(this.results[dataIndex], this.searchUtils.keyword, this.filters)) {

          if(this.filterAll(this.results[dataIndex], this.searchUtils.keyword.toLowerCase(),this.filters)) {

            // console.info("filter true (keyword:"+this.searchUtils.keyword+")");

            return true;

          }

          // console.info("filter false (keyword:"+this.searchUtils.keyword+")");

          return false;

        });

      }catch(e){

        console.error("An error occured in ngAfterViewInit of SearchPageTableViewComponent ", e)

    }

    }

  totalPages(): number {

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

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

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

      }

      return totalPages;

  }

  toggleModal($event) {

    this.currentFilter = $event.value;

    this.searchFilterModal.open();

  }

  updateDescription(description:string) {

    this._meta.updateTag({content:description},"name='description'");

    this._meta.updateTag({content:description},"property='og:description'");

  }

  updateTitle(title:string) {

    var _prefix: string = "";

    if(this.hasPrefix) {

      _prefix = "OpenAIRE | ";

    }

    var _title = _prefix + ((title.length> 50 ) ?title.substring(0,50):title);

    this._title.setTitle(_title);

    this._meta.updateTag({content:_title},"property='og:title'");

  }

  updateUrl(url:string) {

    this._meta.updateTag({content:url},"property='og:url'");

  }

public getParametersFromUrl(params) {

  for(var i=0; i< this.refineFields.length ; i++) {

    var filterId =  this.refineFields[i];

    if(params[filterId] != undefined) {

      if(this.queryParameters == undefined){

        this.queryParameters = new Map<string,string>();

      }

      this.queryParameters[filterId]=decodeURIComponent(params[filterId]);

    }

  }

}

 /*

 * Mark as check the new filters that are selected, when you get them from search

 */

  public checkSelectedFilters(filters:Filter[]){

    this.filters = filters;

       for(var i=0; i< filters.length ; i++){

            var filter:Filter = filters[i];

            filter.countSelectedValues = 0;

              if(this.queryParameters[filter.filterId] != undefined) {

                let values = (decodeURIComponent(this.queryParameters[filter.filterId])).split(/,(?=(?:[^\"]*\"[^\"]*\")*[^\"]*$)/,-1);

                     for(let filterValue of filter.values) {

                       if(values.indexOf(StringUtils.quote(filterValue.id)) > -1) {

                            filterValue.selected = true;

                            filter.countSelectedValues++;

                         }else{

                           filterValue.selected = false;

                         }

                    }

            }else{

              for(let filterValue of filter.values) {

                 filterValue.selected = false;

              }

            }

        }

        return filters;

  }

  /*

  *

  */

  private createUrlParameters(filters:Filter[], includePage:boolean){

    var allLimits="";//location.search.slice(1);

    this.parameterNames.splice(0,this.parameterNames.length);

    this.parameterValues.splice(0,this.parameterValues.length);

    for (let filter of filters){

      var filterLimits="";

      if(filter.countSelectedValues > 0){

        for (let value of filter.values){

          if(value.selected == true){

            filterLimits+=((filterLimits.length == 0)?'':',') +'"'+ StringUtils.URIEncode(value.id)+'"';

           }

        }

        this.queryParameters[filter.filterId]=filterLimits;

        if(filterLimits.length > 0){

          this.parameterNames.push(filter.filterId);

          this.parameterValues.push(filterLimits);

        }

        allLimits+=(allLimits.length==0?"?":"&")+((filterLimits.length == 0 )?'':filter.filterId + '='+ filterLimits) ;

      }

    }

    if(this.searchUtils.keyword.length > 0 ){

       allLimits+=(allLimits.length==0?"?":"&")+'keyword=' + this.searchUtils.keyword;

      this.parameterNames.push("keyword");

      this.parameterValues.push(this.searchUtils.keyword);

     }

    return allLimits;

  }

  public isFiltered(){

    var filtered=false;

    for (let filter of this.filters){

       if(filter.countSelectedValues > 0){

           filtered = true;

           break;

       }

     }

    if(this.searchUtils.keyword.length > 0 ){

      filtered = true;

    }

    return filtered;

  }

  private clearKeywords(){

    if(this.searchUtils.keyword.length > 0 ){

      this.searchUtils.keyword ='';

    }

    this.goTo(1);

  }

  private clearFilters(){

    for (var i =0 ; i <  this.filters.length; i++) {

         for (var j=0; j <  this.filters[i].values.length; j++) {

          if(this.filters[i].values[j].selected) {

            this.filters[i].values[j].selected = false;

          }

         }

        this.filters[i].countSelectedValues = 0;

    }

    this.clearKeywords();

  }

  private removeFilter(value:Value,filter:Filter){

    filter.countSelectedValues--;

    if(value.selected == true){

      value.selected = false;

     }

    this.goTo(1);

  }

  goTo(page:number = 1){

    this.searchUtils.page=page;

   var table = $('#dpTable').DataTable();

   table.page( page - 1  ).draw( false );

   // Object { page: 0, pages: 3, start: 0, end: 10, length: 10, recordsTotal: 28, recordsDisplay: 21, serverSide: false }

   var info = table.page.info();

   this.searchUtils.totalResults = info.recordsDisplay;

    var urlParameters = this.createUrlParameters(this.filters,true);

    this.location.go(location.pathname,urlParameters);

  }

  filterChanged($event){

       this.goTo(1);

  }

  keywordChanged($event) {

       this.searchUtils.keyword = $event.value;

       this.goTo(1);

  }

  sizeChanged($event) {

    this.searchUtils.size = $event.value;

    var table = $('#dpTable').DataTable();

    table.page.len( this.searchUtils.size ).draw();

    this.goTo(1);

  }

/*

	downloadClicked($event) {

		if($event.value == true) {

		    var queryParameters = this.createSearchQueryParameters(this.filters);

		    this.downloadClick.emit({

		        value: queryParameters

		    });

		}

	}

*/

  getSelectedValues(filter):any{

    var selected = [];

    if(filter.countSelectedValues >0){

      for (var i=0; i < filter.values.length; i++){

        if(filter.values[i].selected){

          selected.push(filter.values[i]);

        }

      }

    }

    return selected;

  }

  /*

  Trigger a table draw in order to get the initial filtering

  */

  triggerInitialLoad(){

      setTimeout(function(){

        var table = $('#dpTable').DataTable();

        table.page( 0  ).draw( false );

      }, 500);

  }

/*

Transform initial - not filtered results to get the filtered number

*/

    transform(results): any {

      if(results.length > 0) {

        var errorCodes:ErrorCodes = new ErrorCodes();

        this.searchUtils.status = errorCodes.LOADING;

        var result = results.filter(row=>this.filterAll(row, this.searchUtils.keyword.toLowerCase(),this.filters));

        let oldTotal = this.searchUtils.totalResults;

        //console.info(result);

        this.searchUtils.totalResults = result.length;

        var errorCodes:ErrorCodes = new ErrorCodes();

        this.searchUtils.status = errorCodes.DONE;

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

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

        }

        // if(oldTotal != this.searchUtils.totalResults) {

        //   args[3].detectChanges();

        // }

         return result;

      }

       return [];

    }

    filterAll(row: any, query: string, filters:Filter[]) {

      let returnValue: boolean = false;

      if(query) {

        if(row.title && row.title.name.toLowerCase().indexOf(query) > -1) {

          returnValue = true;

        }

        if(row.type && row.type.toLowerCase().indexOf(query) > -1) {

          returnValue = true;

        }

        if(row.countries && row.countries.length > 0) {

          for(let country of row.countries) {

            if(country.toLowerCase().indexOf(query) > -1) {

              returnValue = true;

              break;

            }

          }

        }

        if(row.compatibility && row.compatibility.toLowerCase().indexOf(query) > -1) {

          returnValue = true;

        }

        if(row.organizations && row.organizations.length > 0) {

          for(let organization of row.organizations) {

            if(organization.name.toLowerCase().indexOf(query) > -1) {

              returnValue = true;

              break;

            }

          }

        }

        if(row.name && row.name.toLowerCase().indexOf(query) > -1) {

          returnValue = true;

        }

        if(row.acronym && row.acronym.toLowerCase().indexOf(query) > -1) {

          returnValue = true;

        }

        if(row.grantId && row.grantId.toLowerCase().indexOf(query) > -1) {

          returnValue = true;

        }

        if(row.funder && row.funder.toLowerCase().indexOf(query) > -1) {

          returnValue = true;

        }

        if(!returnValue) {

          return false;

        }

      }

      for (let filter of filters){

        if(filter.countSelectedValues > 0){

          for (let value of filter.values){

            if(value.selected == true){

              // make it generic in future commit

              let field:string = "";

              /*

              let index: number = -1;

              for(let i=0; i<this.columnNames.length; i++) {

                if(filter.title == this.columnNames[i]) {

                  index = i;

                }

              }

              */

              if(filter.title == "Type") {

                field = "type";

              } else if(filter.title == "Compatibility") {

                field = "compatibility";

              } else if(filter.title == "Funder") {

                field = "funder";

              } else if(filter.title == "Country") {

                field = "countries";

              }

              //console.info(row);

//console.info("|"+row[field]+"|"+"   "+"|"+value.name+"|");

              //if(row[field] == value.name) {

              if(row[field] &&

                ((filter.valueIsExact && (row[field].trim() == value.name.trim()))

                || (!filter.valueIsExact && (row[field].includes(value.name))))){

                returnValue = true;

                if(filter.filterOperator == "or") {

                  break;

                }

              } else {

                  if(filter.filterOperator == "and") {

                    return false;

                  }

                  returnValue = false;

              }

            }

          }

          if(!returnValue) {

            return false;

          }

        }

      }

      return true;

    }

    filterQuery(data, query){

      if(data.toLowerCase().indexOf(query.toLowerCase()) > -1){

        return true;

      }else{

        return false;

      }

    }

    filterData(row: any, query: string, filters:Filter[]) {

      let returnValue: boolean = false;

      if(query) {

        for(var i=0; i <this.columnNames.length; i++){

          var r= this.filterQuery(row[i], query);

          // console.log(query+" "+ row+" "+r);

          if(r) {

            returnValue = true;

            break;

          }

        }

        if(!returnValue) {

          return false;

        }

      }

      for (let filter of filters){

        if(filter.countSelectedValues > 0){

          for (let value of filter.values){

            if(value.selected == true){

              let field = 1;

              /*if(filter.title == "Type") {

                field = 1;

              } else if(filter.title == "Compatibility Level") {

                field = 4;

              } else if(filter.title == "Funder") {

                field = 3

              }*/

              for(let i=0; i<this.columnNames.length; i++) {

                if(filter.title == this.columnNames[i]) {

                  field = i;

                }

              }

              //if(row[field].trim() == value.name.trim()) {

              if((filter.valueIsExact && (row[field].trim() == value.name.trim()))

                || (!filter.valueIsExact && (row[field].includes(value.name)))){

                returnValue = true;

                if(filter.filterOperator == "or") {

                  break;

                }

              } else {

                  if(filter.filterOperator == "and") {

                    return false;

                  }

                  returnValue = false;

              }

            }

          }

          if(!returnValue) {

            return false;

          }

        }

      }

      return true;

    }

    public encode(param: string): string {

      return StringUtils.URIEncode(param);

    }

    public countFilters():number{

      var filters=0;

      for (let filter of this.filters){

         if(filter.countSelectedValues > 0){

             filters+=filter.countSelectedValues;

         }

       }

      if(this.searchUtils.keyword.length > 0 ){

        filters++;

      }

      return filters;

    }

}