D-Net

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

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

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

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

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

import {Observable}                   from 'rxjs';

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

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

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

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

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

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

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

import {RouterHelper}                 from '../../utils/routerHelper.class';

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

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

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

@Component({

    selector: 'advanced-search-page',

    templateUrl: 'advancedSearchPage.component.html'

})

export class AdvancedSearchPageComponent {

  @Input() piwikSiteId = null;

  @Input() pageTitle = "";

  @Input() results = [];

  @Input() type;

  @Input() entityType;

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

  @Input() fieldIds:  string[];

  @Input() fieldIdsMap;//:{ [key:string]:{ name:string, operator:string, type:string, indexField:string, equalityOperator:string  }} ;

  @Input() selectedFields:AdvancedField[];

  @Input() simpleSearchUrl: string;

  @ViewChild (ModalLoading) loading : ModalLoading ;

  @Input() csvParams: string;

  @Input() csvPath: string;

  @Input() simpleSearchLink: string = "";

  @Input() disableForms:boolean = false;

  @Input() loadPaging: boolean = true;

  @Input() oldTotalResults: number = 0;

  @Input() openaireLink: string;

  @Input() connectCommunityId: string;

  @Input() sort: boolean = false;

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

  piwiksub: any;

  public parameterNames:string[] =[];

  public parameterValues:string[] =[];

  public baseURLWithParameters:string = '';

  public csvLimit: number = 0;

  public pagingLimit: number = 0;

  public resultsPerPage: number = 0;

  isPiwikEnabled = false;

  properties:EnvProperties;

  public routerHelper:RouterHelper = new RouterHelper();

  public errorCodes:ErrorCodes = new ErrorCodes();

  url = null;

  @Output() queryChange  = new EventEmitter();

  constructor (private route: ActivatedRoute,

               private location: Location,

               private _meta: Meta,

               private _title: Title,

               private _piwikService:PiwikService,

               private router: Router,

             private seoService: SEOService) {

   }

  ngOnInit() {

    this.route.data

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

        this.properties = data.envSpecific;

        this.pagingLimit = data.envSpecific.pagingLimit;

        this.resultsPerPage =data.envSpecific.resultsPerPage;

        this.csvLimit = data.envSpecific.csvLimit;

        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(this.properties, this.pageTitle, this.piwikSiteId).subscribe();

        }

      });

    var title = "Advanced search "+this.pageTitle;

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

    this.updateTitle(title);

    this.updateDescription(description);

    this.searchUtils.baseUrl = "/" + this.searchUtils.baseUrl;

    this.updateBaseUrlWithParameters();

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

  }

  ngOnDestroy() {

    if(this.piwiksub){

      this.piwiksub.unsubscribe();

    }

  }

  updateDescription(description:string) {

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

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

  }

  updateTitle(title:string) {

    var _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 getSelectedFiltersFromUrl(params) {

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

         var fieldId =  this.fieldIds[i];

         var fieldparam =  (this.fieldIdsMap[fieldId])?this.fieldIdsMap[fieldId].param:"";

         if(!this.fieldIdsMap[fieldId]){

           console.error("Field: "+fieldId +" not found in fieldIds map");

         }

         var operatorId =  this.getOperatorParameter(fieldparam);

          if(params[fieldparam] != undefined && params[operatorId] != undefined) {

              var values:string [] = StringUtils.URIDecode(params[fieldparam]).split(/,(?=(?:[^\"]*\"[^\"]*\")*[^\"]*$)/,-1);

             var operators:string [] = (StringUtils.URIDecode(params[operatorId])).split(/,(?=(?:[^\"]*\"[^\"]*\")*[^\"]*$)/,-1);

              if(values.length == operators.length){

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

                 if(this.fieldIdsMap[fieldId].type == "date"){

                   var value:string =StringUtils.unquote(values[j]);

                   var validDates:boolean = true;

                   var dateField:AdvancedField = new AdvancedField(fieldId,fieldparam,this.fieldIdsMap[fieldId].name,this.fieldIdsMap[fieldId].type,value,operators[j]) ;

                   if(value.indexOf("range") != -1){

                     dateField.dateValue.type="range";

                     if(value.length < 26 ){

                       validDates =false;

                     }else{

                       if(!Dates.isValidDate(value.substring(5,15)) || !Dates.isValidDate(value.substring(16,26))){

                         validDates =false;

                       }else {

                        dateField.dateValue.from = Dates.getDateFromString(value.substring(5,15));

                        dateField.dateValue.to = Dates.getDateFromString(value.substring(16,26));

                      }

                    }

                    //  "rangeYYYY-MM-DD:YYYY-MM-DD"

                   }else{

                     dateField.dateValue.setDatesByType(value);

                   }

                   if(validDates){

                     this.selectedFields.push(dateField);

                   }

                 }

                 else{

                     this.selectedFields.push(new AdvancedField(fieldId,fieldparam,this.fieldIdsMap[fieldId].name,this.fieldIdsMap[fieldId].type,StringUtils.unquote(values[j]),operators[j]) );

                 }

               }

             }

         }

   }

   if(this.selectedFields.length == 0){

     this.selectedFields.push(new AdvancedField(this.fieldIds[0],fieldparam,this.fieldIdsMap[this.fieldIds[0]].name,this.fieldIdsMap[this.fieldIds[0]].type,"","and"));

   }

  }

  private createUrlParameters(includePage:boolean){

    var params="";

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

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

    var fields: { [key:string]:{ values:string[], operators:string[] }}={};

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

       if(this.fieldIdsMap[this.selectedFields[i].id] != undefined && (this.selectedFields[i].value.length > 0  || this.selectedFields[i].type == "date" )){

        if(!fields[this.selectedFields[i].id]){

          fields[this.selectedFields[i].id] = {values:[], operators:[]};

          fields[this.selectedFields[i].id].values =[];

          fields[this.selectedFields[i].id].operators =[];

        }

        if(this.selectedFields[i].type == "date"){

           if(this.selectedFields[i].dateValue.type == "range"){

              fields[this.selectedFields[i].id].values.push(StringUtils.quote(StringUtils.URIEncode("range"+Dates.getDateToString(this.selectedFields[i].dateValue.from)+":"+Dates.getDateToString(this.selectedFields[i].dateValue.to))));

          }else{

              fields[this.selectedFields[i].id].values.push(StringUtils.quote(StringUtils.URIEncode(this.selectedFields[i].dateValue.type)));

          }

        }else{

          fields[this.selectedFields[i].id].values.push(StringUtils.quote(StringUtils.URIEncode(this.selectedFields[i].value)));

        }

        fields[this.selectedFields[i].id].operators.push(this.selectedFields[i].operatorId);

      }

    }

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

      if(fields[this.fieldIds[i]]){

        params+="&"+this.fieldIdsMap[this.fieldIds[i]].param+"="+fields[this.fieldIds[i]].values.join()+

        "&"+ this.fieldIdsMap[this.fieldIds[i]].operator+"="+fields[this.fieldIds[i]].operators.join()

        this.parameterNames.push(this.fieldIdsMap[this.fieldIds[i]].param);

        this.parameterValues.push(fields[this.fieldIds[i]].values.join());

        this.parameterNames.push( this.fieldIdsMap[this.fieldIds[i]].operator);

        this.parameterValues.push(fields[this.fieldIds[i]].operators.join());

      }

    }

    if(includePage && this.searchUtils.page != 1){

      params += "&page="+this.searchUtils.page;

    }

    if(this.searchUtils.size != 10) {

      params+=((params.length == 0)?'':'&') + 'size=' + this.searchUtils.size;

      this.parameterNames.push("size");

      this.parameterValues.push(""+this.searchUtils.size);

    }

    if(this.sort && this.searchUtils.sortBy) {

      params+=((params.length == 0)?'':'&') + 'sortBy=' + this.searchUtils.sortBy;

      this.parameterNames.push("sortBy");

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

    }

     return '?'+params;

  }

  public createQueryParameters(){

    var params="";

    var countParams = 0;

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

      if(this.fieldIdsMap[this.selectedFields[i].id] != undefined && (this.selectedFields[i].value != "" ||this.selectedFields[i].type == "date")){

        //console.log("createQueryParameters::"+this.selectedFields[i].type);

        if(this.selectedFields[i].type == "date"){

          if(this.selectedFields[i].dateValue.type != "any"){

            params += (countParams == 0 ? "" : this.selectedFields[i].operatorId) + " " + this.selectedFields[i].id + this.fieldIdsMap[this.selectedFields[i].id].equalityOperator+ '"' + StringUtils.URIEncode(Dates.getDateToString(this.selectedFields[i].dateValue.from)) + " "

            + StringUtils.URIEncode(Dates.getDateToString(this.selectedFields[i].dateValue.to)) + '"' + " ";

          }

        }else{

          if(this.selectedFields[i].id == "q"){

            var op = "";

            // if()

            params += (countParams == 0 ? "" : this.selectedFields[i].operatorId) + " " + '"' + StringUtils.URIEncode(this.selectedFields[i].value) + '"' + " ";

          }else if(countParams == 0 && this.selectedFields[i].operatorId == "not"){

              params += " "+ this.selectedFields[i].id +  " <> "+'"' + StringUtils.URIEncode(this.selectedFields[i].value) +'"' + " ";

          }else{

            params += (countParams == 0 ? "" : this.selectedFields[i].operatorId + " " ) + this.selectedFields[i].id + this.fieldIdsMap[this.selectedFields[i].id].equalityOperator+'"' + encodeURIComponent(this.selectedFields[i].value) +'"' + " ";

          }

      }

        countParams++;

      }

    }

    //community

    if(this.connectCommunityId ){

      params += (countParams == 0 ? "" : " and " ) + "communityId exact "+'"' + this.connectCommunityId +'"' + " ";

    }

     return params;

  }

  clearFilters(){

  }

  goTo(page:number = 1){

     this.searchUtils.page = page;

    var urlParameters = this.createUrlParameters(true);

    var queryParameters = this.createQueryParameters();

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

    this.router.navigate( [this.searchUtils.baseUrl], { queryParams: this.routerHelper.createQueryParams(this.parameterNames, this.parameterValues) } );

    this.queryChange.emit({

        value: queryParameters

    });

    /* Code For Piwik*/

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

          //console.log("In PreviousRouteRecorder : "+this.router.url );

          localStorage.setItem('previousRoute', this.router.url);

        }

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

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

        }

        /* End Piwik Code */

  }

  queryChanged($event) {

     this.goTo(1);

  }

  pageChanged($event) {

    this.searchUtils.page = +$event.value;

    this.goTo(this.searchUtils.page);

  }

  sizeChanged($event) {

       this.searchUtils.size = $event.value;

       this.goTo(1);

  }

  sortByChanged($event) {

       this.searchUtils.sortBy = $event.value;

       this.goTo(1);

  }

  /*

  * Update the url with proper parameters. This is used as base url in Paging Component

  */

  public updateBaseUrlWithParameters(){

    this.baseURLWithParameters = this.searchUtils.baseUrl + this.createUrlParameters(false);

   }

   getOperatorParameter(parameter:string):string{

     for (let id of this.fieldIds) {

       if(this.fieldIdsMap[id]["param"] == parameter){

         return this.fieldIdsMap[id]["operator"];

       }

     }

   }

   // for loading

   public openLoading(){

     this.loading.open();

   }

   public closeLoading(){

       this.loading.close();

   }

}