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

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

import {SearchDataprovidersService} from '../../services/searchDataproviders.service';
import {SearchResult}     from '../../utils/entities/searchResult';
import {ErrorCodes} from '../../utils/properties/errorCodes';
import {SearchFields, FieldDetails} from '../../utils/properties/searchFields';
import {SearchPageComponent } from '../searchUtils/searchPage.component';
import {SearchUtilsClass } from '../searchUtils/searchUtils.class';
import{EnvProperties} from '../../utils/properties/env-properties';

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

    <search-page    pageTitle="OpenAIRE Journals"
                    formPlaceholderText = "Search for OpenAIRE Journals"
                    type="content providers" entityType="dataprovider" [(filters)] = "filters"
                    [(results)] = "results"  [(searchUtils)] = "searchUtils"
                    [baseUrl] = "baseUrl" [showResultCount]=false
                    (queryChange)="queryChanged($event)"
                    [csvParams]="csvParams" csvPath="resources"
                    [disableForms]="disableForms"
                    [tableViewLink]="'/search/journals-table'"
                    searchFormClass="journalsSearchForm">
    </search-page>
    `

})
export class SearchJournalsComponent {
  private errorCodes: ErrorCodes;

  public results =[];
  public filters =[];
  public baseUrl:string;
  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;
  public fieldIdsMap= this.searchFields.DATASOURCE_FIELDS;
  public _prefixQueryFields: {field:string,opName:string,opValue:string,values:string[]}[] =[{field:"compatibility",opName:"cm",opValue:"not", values:["UNKNOWN","hostedBy","notCompatible"]},{field:"type",opName:"tp",opValue:"not",values: ["other"]}];
  // ["entityregistry","entityregistry::projects","entityregistry::repositories"]}];
  public _prefixQuery: string = "";

  public CSV: any = {  "columnNames":  [ "Title", "Type", "Coutries", "Compatibility" ],
                        "export":[]
                     };
  public CSVDownloaded = false;
  public resourcesQuery = '&query=((oaftype exact datasource) not(datasourcecompatibilityid = UNKNOWN) not(datasourcecompatibilityid = notCompatible) and (datasourcetypeuiid exact "pubsrepository::journal" or datasourcetypeuiid exact "aggregator::pubsrepository::journals" ))';
  //"&query=((oaftype exact datasource) not(datasourcecompatibilityid = UNKNOWN) not(datasourcecompatibilityid = notCompatible) not(datasourcetypeuiid = other))";
  public csvParams: string;
  public disableForms: boolean = false;
properties:EnvProperties;
  @ViewChild (SearchPageComponent) searchPage : SearchPageComponent ;

  constructor (private route: ActivatedRoute, private _searchDataprovidersService: SearchDataprovidersService ) {
    this.errorCodes = new ErrorCodes();
    this.searchUtils.status = this.errorCodes.LOADING;
    for(var i = 0; i < this._prefixQueryFields.length; i++ ){
      for(var j =0; j < this._prefixQueryFields[i].values.length; j++){
        this._prefixQuery+="&" + this._prefixQueryFields[i].field + "="
        + this._prefixQueryFields[i].values[j] + "&" +
        this._prefixQueryFields[i].opName + "=" + this._prefixQueryFields[i].opValue;
      }
    }
    this._prefixQuery+="&";
  }

  public ngOnInit() {
    this.route.data
      .subscribe((data: { envSpecific: EnvProperties }) => {
        this.properties = data.envSpecific;
        this.baseUrl = data.envSpecific.searchLinkToJournals;


      });
    this.searchPage.refineFields = this.refineFields;
    this.searchPage.fieldIdsMap = this.fieldIdsMap;
    this.sub =  this.route.queryParams.subscribe(params => {
      this.searchUtils.keyword = (params['keyword']?params['keyword']:'');
      this.searchUtils.page = (params['page']=== undefined)?1:+params['page'];
      this.filters = this.createFilters();
      var queryParameters = this.searchPage.getIndexQueryParametersFromUrl(params);
      console.info("|"+queryParameters+"|");
      this._getResults(queryParameters, false, this.searchUtils.page, this.searchUtils.size);
    });
  }

  public ngOnDestroy() {
    if(this.sub){
      this.sub.unsubscribe();
    }
    if(this.subResults){
      this.subResults.unsubscribe();
    }  }
    private _getResults(parameters:string,refine:boolean, page: number, size: number){
        this.csvParams = parameters+this.resourcesQuery+"&type=datasources";

      //var errorCodes:ErrorCodes = new ErrorCodes();
      this.searchUtils.status = this.errorCodes.LOADING;
      //this.searchPage.openLoading();
      this.disableForms = true;
      this.results = [];
      this.searchUtils.totalResults = 0;

      this.subResults = this._searchDataprovidersService.searchJournals(parameters,(refine)?this.searchPage.getRefineFieldsQuery():null, page, size, [],this.properties).subscribe(
          data => {
              this.searchUtils.totalResults = data[0];
              console.info("search Journals: [Parameters:"+parameters+" ]  [total results:"+this.searchUtils.totalResults+"]");
              this.results = data[1];
              this.searchPage.checkSelectedFilters(this.filters);
              this.searchPage.updateBaseUrlWithParameters(this.filters);
              //var errorCodes:ErrorCodes = new ErrorCodes();
              this.searchUtils.status = this.errorCodes.DONE;
              if(this.searchUtils.totalResults == 0 ){
                this.searchUtils.status = this.errorCodes.NONE;
              }
              //this.searchPage.closeLoading();
              this.disableForms = false;

          },
          err => {
              console.log(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;
              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;

          }
      );
    }
  private setFilters(){
    //TODO set filters from
  }

  public queryChanged($event) {
    var parameters = $event.index;
    console.info("queryChanged: Execute search query "+parameters);

    this._getResults(parameters, false, this.searchUtils.page, this.searchUtils.size);
  }
  private createFilters():Filter[] {
    var filter_names=["Type","Compatibility Level"];
    var filter_ids=["datasourcetypeuiid","datasourcecompatibilityname"];
    var searchFields = new SearchFields();
    var filter_original_ids = searchFields.JOURNAL_FIELDS;
    var value_names=[
      /*[
      "Institutional Publication Repository","Thematic Publication Repository", "Other Publication Repository",
     "Institutional Repositories Aggregators",
     "Thematic Repositories Aggregators", "Other Repositories Aggregators",
      "Data Repositories", "Data Repositories Aggregators", "Journals", "Journals Aggregators", "CRIS Systems", "Publication Catalogues"],
      */
      ["Journal", "Journal Aggregator\/Publisher"],
      ["OpenAIRE Basic (DRIVER OA)","OpenAIRE 2.0 (EC funding)", "OpenAIRE 2.0+ (DRIVER OA, EC funding)", "OpenAIRE 3.0 (OA, funding)","OpenAIRE Data (funded, referenced datasets)"]];

    var value_original_ids=[
      ["pubsrepository::journal", "aggregator::pubsrepository::journals"],
      //["driver","openaire2.0", "driver-openaire2.0", "openaire3.0","openaire2.0_data"]
    ["OpenAIRE Basic (DRIVER OA)","OpenAIRE 2.0 (EC funding)", "OpenAIRE 2.0+ (DRIVER OA, EC funding)", "OpenAIRE 3.0 (OA, funding)","OpenAIRE Data (funded, referenced datasets)"]];
    var filters: Filter[] =[];
    for(var i =0 ; i < filter_names.length;i++){
      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' };
       filters.push(filter);
    }
    return filters;
    }
}