import {Component, Input, ViewChild} from '@angular/core';
import {ActivatedRoute} from '@angular/router';
import {Location} from '@angular/common';
import {SearchDataprovidersService} from '../services/searchDataproviders.service';
import {ErrorCodes} from '../utils/properties/errorCodes';
import {ErrorMessagesComponent}    from '../utils/errorMessages.component';
import {SearchFields} from '../utils/properties/searchFields';
import {SearchPageComponent } from '../searchPages/searchUtils/searchPage.component';
import {SearchUtilsClass} from '../searchPages/searchUtils/searchUtils.class';
import {EnvProperties} from '../utils/properties/env-properties';
import {StringUtils} from "../utils/string-utils.class";
import {ZenodoInformationClass} from "./utils/zenodoInformation.class";
import {RouterHelper} from "../utils/routerHelper.class";

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

    <div class="uk-section uk-padding-remove-bottom uk-padding-remove-top">
      <div class="communityPanelBackground uk-margin-top uk-padding-small">
        <div class="uk-container uk-container-large uk-margin-small-top uk-margin-small-bottom">
          <ul class="uk-breadcrumb">
            <li><a class="breadcrumb" routerLinkActive="router-link-active" [routerLink]="depositLearnHowPage"
                   [queryParams]="properties.environment!='development'?{}:routerHelper.createQueryParam('communityId',communityId)">
              Deposit
            </a></li>
            <li><span class="active">Browse repositories</span></li>
          </ul>
        </div>
      </div>
    </div>
    <search-page pageTitle="Deposit Browse & Search repositories" [hasPrefix]=false
                 formPlaceholderText = "Search for Content Providers"
                 type="content providers" entityType="dataprovider" [(filters)] = "filters"
                 [(results)] = "results"   [(searchUtils)] = "searchUtils" [baseUrl] = "baseUrl"
                 (queryChange)="queryChanged($event)"
                 [csvParams]="csvParams" csvPath="datasources"
                 [disableForms]="disableForms"
                 [loadPaging]="loadPaging"
                 [oldTotalResults]="oldTotalResults"
                 [piwikSiteId]=piwikSiteId
                 [searchFormClass]="''"
                 [usedBy]="'deposit'" 
                 [showMoreFilterValuesInline]=true
                 [filterValuesNum]=4
                 [lastIndex]=false 
                 [zenodoInformation]="zenodoInformation">
    </search-page>
    `
})
export class SearchDataprovidersToDepositComponent {
  private errorCodes: ErrorCodes;
  private errorMessages: ErrorMessagesComponent;
  @Input() piwikSiteId = null;
  public results =[];
  public filters =[];
  public totalResults:number  = 0 ;
  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.DEPOSIT_DATASOURCE_REFINE_FIELDS;
  public fieldIdsMap= this.searchFields.DEPOSIT_DATASOURCE_FIELDS;
  public keywordFields = this.searchFields.DEPOSIT_DATASOURCE_KEYWORD_FIELDS;
  public csvParams: string;

  public disableForms: boolean = false;
  public loadPaging: boolean = true;
  public oldTotalResults: number = 0;
  pagingLimit = 0;

  properties:EnvProperties;

  @ViewChild (SearchPageComponent) searchPage : SearchPageComponent ;

  @Input() public communityId: string = null;
  @Input() public zenodoInformation: ZenodoInformationClass = new ZenodoInformationClass();

  depositLearnHowPage: string = null;
  public routerHelper:RouterHelper = new RouterHelper();

  constructor (private route: ActivatedRoute, private _searchDataprovidersService: SearchDataprovidersService) {
    this.errorCodes = new ErrorCodes();
    this.errorMessages = new ErrorMessagesComponent();
    this.searchUtils.status = this.errorCodes.LOADING;
    this.searchUtils.page =1;
  }

  public ngOnInit() {
    this.route.data
      .subscribe((data: { envSpecific: EnvProperties }) => {
        this.properties = data.envSpecific;
        this.depositLearnHowPage = this.properties.depositLearnHowPage;
        this.baseUrl = this.properties.depositSearchPage;
        this.pagingLimit = this.properties.pagingLimit;
      });
    this.searchPage.refineFields = this.refineFields;
    this.searchPage.fieldIdsMap = this.fieldIdsMap;
    this.searchPage.keywordFields = this.keywordFields;
    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;
      }

      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;
      this.searchUtils.page = (params['page']=== undefined)?1:+params['page'];
      this.searchUtils.size = (params['size']=== undefined)?5:+params['size'];
      if(this.searchUtils.size != 5 && this.searchUtils.size != 10 && this.searchUtils.size != 20 && this.searchUtils.size != 50) {
        this.searchUtils.size = 5;
      }
      this.searchPage.usedBy = "deposit";
      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;

      if(this.keywordFields.length > 0) {
        parameters = "&fq=";
      }

      for(let i=0; i< this.keywordFields.length ; i++) {
        if(i > 0) {
          parameters += " or ";
        }
        let field = this.keywordFields[i];
        parameters += field.name+field.equalityOperator+StringUtils.URIEncode(this.searchUtils.keyword);
      }
    }
    this._getResults(parameters,refine,page, 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.disableForms = true;
      this.results = [];
      this.searchUtils.totalResults = 0;

      this.subResults = this._searchDataprovidersService.searchDataprovidersForDepositSearch(parameters,(refine)?this.searchPage.getRefineFieldsQuery():null, page, size, this.searchPage.getFields(),this.properties, "deposit").subscribe(
        data => {
          this.searchUtils.totalResults = data[0];
          this.results = data[1];
          if(refine){
            this.filters = data[2];
          }
          this.searchPage.checkSelectedFilters(this.filters);
          this.searchPage.updateBaseUrlWithParameters(this.filters);
          this.searchUtils.status = this.errorCodes.DONE;
          if(this.searchUtils.totalResults == 0 ){
            this.searchUtils.status = this.errorCodes.NONE;
          }
          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 => {
          this.handleError("Error getting content providers", err);
          this.searchUtils.status = this.errorMessages.getErrorCode(err.status);

          this.disableForms = false;
        }
      );
    }
  }

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

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