import {Component, Input, ViewChild} from '@angular/core';
import { ActivatedRoute} from '@angular/router';
import {Location} from '@angular/common';
import { Filter, Value} from '../searchUtils/searchHelperClasses.class';
import {SearchProjectsService} from '../../services/searchProjects.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-projects',
    template: `

    <search-page pageTitle="Search Projects"
                formPlaceholderText = "Search for Projects"
                 type="projects" entityType="project" [(filters)] = "filters"
                 [(results)] = "results" [(searchUtils)] = "searchUtils"
                 [baseUrl] = "baseUrl" (queryChange)="queryChanged($event)"
                 [csvParams]="csvParams" csvPath="projects" advancedSearchLink="/search/advanced/projects"
                 [disableForms]="disableForms"
                 [loadPaging]="loadPaging"
                 [oldTotalResults]="oldTotalResults"
                 searchFormClass="projectsSearchForm">
    </search-page>
     `

})
export class SearchProjectsComponent {
  private errorCodes: ErrorCodes;

  public results =[];
  public filters: Filter[] =[];
  public baseUrl:string;
  public searchUtils:SearchUtilsClass = new SearchUtilsClass();
  public sub: any;
  public subResults: any;
  public searchFields:SearchFields = new SearchFields();
  public refineFields: string[] =  this.searchFields.PROJECT_REFINE_FIELDS;
  public fieldIdsMap = this.searchFields.PROJECT_FIELDS;
  public urlParams : Map<string, string>;
  public _location:Location;
  public csvParams: string;
  public disableForms: boolean = false;
  public loadPaging: boolean = true;
  public oldTotalResults: number = 0;
  pagingLimit = 0;
properties: EnvProperties;

  @ViewChild (SearchPageComponent) searchPage : SearchPageComponent ;

  constructor (private route: ActivatedRoute, private _searchProjectsService: SearchProjectsService) {
    console.info(" constructor SearchProjectsComponent "+this.refineFields.length);

    this.errorCodes = new ErrorCodes();
    this.searchUtils.status = this.errorCodes.LOADING;
    this.searchUtils.page =1;

  }

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

      });
    this.searchPage.refineFields = this.refineFields;
    this.searchPage.fieldIdsMap = this.fieldIdsMap;
    console.info(" ngOnInit SearchProjectsComponent "+this.refineFields.length);
    //get refine field filters  from url parameters
    var firstLoad = true;
    this.sub =  this.route.queryParams.subscribe(params => {
      if(params['page'] && this.searchUtils.page != params['page']) {
        this.loadPaging = false;
        this.oldTotalResults = this.searchUtils.totalResults;
      }

      //get keyword from url parameters
      this.searchUtils.keyword = (params['keyword']?params['keyword']:'');
      var refine = true;
      if(this.searchUtils.page != ((params['page']=== undefined)?1:+params['page']) && this.filters && !firstLoad){
        refine = false;

      }
      firstLoad = false;
      //get page from url parameters
      this.searchUtils.page = (params['page']=== undefined)?1:+params['page'];
      var queryParameters = this.searchPage.getQueryParametersFromUrl(params);
      this._getResults(queryParameters, refine, this.searchUtils.page, this.searchUtils.size);
    });
  }

  public ngOnDestroy() {
    if(this.sub){
      this.sub.unsubscribe();
    }
    if(this.subResults){
      this.subResults.unsubscribe();
    }
  }

  public getResults(keyword:string,refine:boolean, page: number, size: number){
    var parameters = "";
    if(keyword.length > 0){
      parameters = "q="+keyword;
    }
    this._getResults(parameters,refine,page,this.searchUtils.size);
  }
  private _getResults(parameters:string,refine:boolean, page: number, size: number){
    if(page > this.pagingLimit) {
      size=0;
    }
    if(page <= this.pagingLimit || this.searchUtils.status == this.errorCodes.LOADING) {
      this.csvParams = parameters;

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

      this.subResults = this._searchProjectsService.searchProjects(parameters,(refine)?this.searchPage.getRefineFieldsQuery():null, page, size, this.searchPage.getFields(), this.properties).subscribe(
        data => {
            this.searchUtils.totalResults = data[0];
            console.info("search Projects: [Parameters:"+parameters+" ]  [total results:"+this.searchUtils.totalResults+"]");
            this.results = data[1];
            if(refine){
              this.filters = data[2];
            }
            this.searchPage.checkSelectedFilters(this.filters);
            // this.filters = this.searchPage.checkSelectedFilters(data[2]);
            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;

            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;
              }
            }
        },
        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;
        }
      );
    }
  }

  public getResultsForDataproviders(id:string, page: number, size: number){

    this._searchProjectsService.getProjectsforDataProvider(id, page, size, this.properties).subscribe(
        data => {
            this.searchUtils.totalResults = data[0];
            console.info("search Projects for Dataproviders: [Id:"+id+" ]  [total results:"+this.searchUtils.totalResults+"]");
            this.results = data[1];

            //var errorCodes:ErrorCodes = new ErrorCodes();
            this.searchUtils.status = this.errorCodes.DONE;
            if(this.searchUtils.totalResults == 0 ){
              this.searchUtils.status = this.errorCodes.NONE;
            }
        },
        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;
            }
        }
    );
  }


  public queryChanged($event) {
    this.loadPaging = true;

    this.urlParams = undefined;
    var parameters = $event.value;
    this._getResults(parameters, true, this.searchUtils.page, this.searchUtils.size);
  }

}