import {ChangeDetectorRef, Component, OnDestroy, OnInit, ViewRef} from '@angular/core';
import {ActivatedRoute, Params, Router} from '@angular/router';
import {DomSanitizer, Meta, Title} from '@angular/platform-browser';
import {EnvProperties} from '../openaireLibrary/utils/properties/env-properties';

import {PiwikService} from '../openaireLibrary/utils/piwik/piwik.service';
import {Dates, StringUtils} from '../openaireLibrary/utils/string-utils.class';
import {ErrorCodes} from '../openaireLibrary/utils/properties/errorCodes';
import {ErrorMessagesComponent} from '../openaireLibrary/utils/errorMessages.component';
import {HelperService} from "../openaireLibrary/utils/helper/helper.service";
import {SEOService} from "../openaireLibrary/sharedComponents/SEO/SEO.service";
import {StakeholderService} from "../openaireLibrary/monitor/services/stakeholder.service";
import {Category, IndicatorPath, Stakeholder, SubCategory, Topic} from "../openaireLibrary/monitor/entities/stakeholder";
import {StatisticsService} from "../utils/services/statistics.service";
import {IndicatorUtils, StakeholderUtils} from "../utils/indicator-utils";
import {LayoutService} from "../openaireLibrary/dashboard/sharedComponents/sidebar/layout.service";
import {FormBuilder, FormControl} from "@angular/forms";
import {Subscription} from "rxjs";
import {Session, User} from "../openaireLibrary/login/utils/helper.class";
import {UserManagementService} from "../openaireLibrary/services/user-management.service";
import {RangeFilter} from "../openaireLibrary/utils/rangeFilter/rangeFilterHelperClasses.class";
import {Filter, Value} from "../openaireLibrary/searchPages/searchUtils/searchHelperClasses.class";
import {Location} from "@angular/common";
import {RouterHelper} from "../openaireLibrary/utils/routerHelper.class";

@Component({
  selector: 'monitor',
  templateUrl: 'monitor.component.html',
  styleUrls:['monitor.component.css']
})
export class MonitorComponent implements OnInit, OnDestroy {
  public user: User;
  public subscriptions: any[] = [];
  public piwiksub: any;
  public pageContents = null;
  public divContents = null;
  public status: number;
  public loading: boolean = true;
  public isViewPublic: boolean = false;
  public indicatorUtils: IndicatorUtils = new IndicatorUtils();
  public stakeholderUtils: StakeholderUtils = new StakeholderUtils();
  public activeTopic: Topic = null;
  public activeCategory: Category = null;
  public activeSubCategory: SubCategory = null;
  public errorCodes: ErrorCodes;
  public stakeholder: Stakeholder;
  public numberResults: Map<string, number> = new Map<string, number>();
  public chartsActiveType: Map<string, IndicatorPath> = new Map<string, IndicatorPath>();
  private errorMessages: ErrorMessagesComponent;
  properties: EnvProperties;
  filterToggle = false;
  public routerHelper: RouterHelper = new RouterHelper();
  filters:Filter[] = [];
  queryParams = {};
  periodFilter:RangeFilter = { title: "Time range",  filterId: "year", originalFilterIdFrom: null, originalFilterIdTo: null, selectedFromValue: null, selectedToValue: null, selectedFromAndToValues: ""};
  privateStakeholder = false;
  public keyword: FormControl;
  constructor(
    private route: ActivatedRoute,
    private _router: Router,
    private _meta: Meta,
    private _title: Title,
    private _piwikService: PiwikService,
    private helper: HelperService,
    private stakeholderService: StakeholderService,
    private userManagementService: UserManagementService,
    private statisticsService: StatisticsService,
    private layoutService: LayoutService,
    private seoService: SEOService,
    private cdr: ChangeDetectorRef,
    private sanitizer: DomSanitizer, private _fb: FormBuilder,  private router: Router,
    private location: Location) {
    this.errorCodes = new ErrorCodes();
    this.errorMessages = new ErrorMessagesComponent();
    this.status = this.errorCodes.LOADING;
  }

  public ngOnInit() {
    this.keyword = this._fb.control('');
    this.keyword.valueChanges.subscribe(value => {
      console.log("Keyword Changed!");
      //TODO do a real action
    });
    this.route.data
      .subscribe((data: { envSpecific: EnvProperties }) => {
        let subscription: Subscription;
        this.subscriptions.push(this.userManagementService.getUserInfo().subscribe(user => {
          this.user = user;

          this.route.params.subscribe(params => {
            this.loading = true;
            this.activeTopic = null;
            this.activeCategory = null;
            this.activeSubCategory = null;
            this.filterToggle = false;
            if (subscription) {
              subscription.unsubscribe();
            }
            this.properties = data.envSpecific;
            var url = data.envSpecific.baseLink + this._router.url;
            this.route.queryParams.subscribe(params => {
              this.queryParams = Object.assign({}, params);
              this.isViewPublic = (params['view'] == 'public');
            });
            if (!this.stakeholder || this.stakeholder.alias !== params['stakeholder']) {
              this.status = this.errorCodes.LOADING;
              this.numberResults = new Map<string, number>();
              this.chartsActiveType = new Map<string, IndicatorPath>();
              subscription = this.stakeholderService.getStakeholderAsObservable().subscribe(stakeholder => {
                if (stakeholder) {
                  this.stakeholder = stakeholder;
                  // add fl0 filter only for EC
                  if(this.stakeholder.index_id == "ec__________::EC"){
                    this.filters.push({title: "Funding Stream",filterId: "relfundinglevel0_id",originalFilterId: "relfundinglevel0_id", countSelectedValues: 0,
                      values:[{name: "EC|FP7", id: "ec__________::EC::FP7", selected:  false, number: 0}, {name: "EC|H2020", id: "ec__________::EC::H2020", selected:  false, number: 0}]
                      ,filterOperator: "or", valueIsExact: true, filterType: "radio", radioValue:""});
                  }
                  if(this.stakeholder.type == "funder"){
                    // this.filters.push({title: "Co-funded research outcomes",filterId: "co-funded",originalFilterId: "co-funded", countSelectedValues: 0,
                    //   values:[{name: "true", id: "co-funded", selected:  false, number: 0}, {name: "false", id: "no-co-funded", selected:  false, number: 0}]
                    //   ,filterOperator: "or", valueIsExact: true, filterType: "radio", radioValue:""});
                    this.filters.push({title: "Co-funded",filterId: "co-funded",originalFilterId: "co-funded", countSelectedValues: 0,
                      values:[{name: "Co-funded research output", id: "co-funded-results", selected:  false, number: 0}]
                      ,filterOperator: "or", valueIsExact: true, filterType: "checkbox", radioValue:""});
                  }
                  this.initializeFilters();
                  if(stakeholder.isActive && (stakeholder.isPublic || this.isPublicOrIsMember(stakeholder.isPublic))) {
                    this.seoService.createLinkForCanonicalURL(url, false);
                    this._meta.updateTag({content: url}, "property='og:url'");
                    var description = "Monitor Dashboard | " + this.stakeholder.name;
                    var title = "Monitor Dashboard | " + this.stakeholder.name;
                    this._meta.updateTag({content: description}, "name='description'");
                    this._meta.updateTag({content: description}, "property='og:description'");
                    this._meta.updateTag({content: title}, "property='og:title'");
                    this._title.setTitle(title);
                    if (this.properties.enablePiwikTrack && (typeof document !== 'undefined')) {
                      this.piwiksub = this._piwikService.trackView(this.properties, title, this.properties.piwikSiteId).subscribe();
                    }
                    //this.getDivContents();
                    this.getPageContents();
                    this.status = this.errorCodes.DONE;
                    this.setView(params);
                  } else {
                    this.privateStakeholder = true;
                    // this.navigateToError();
                    if(subscription) {
                      subscription.unsubscribe();
                    }
                  }
                }
              });
              this.subscriptions.push(subscription);
            } else {
              console.debug(" stakeholder is already available")
              this.initializeFilters();
              this.setView(params);
            }
          });
        }));
      });
  }
  private initializeFilters(){
    this.periodFilter.selectedFromValue = (this.queryParams['year'] && this.queryParams['year'].indexOf("range")==0)?this.queryParams['year'].split("range")[1].split(":")[0]:"";
    this.periodFilter.selectedToValue = (this.queryParams['year'] && this.queryParams['year'].indexOf("range")==0)?this.queryParams['year'].split("range")[1].split(":")[1]:"";
    this.validateYearRange(false);

    for(let filter of this.filters) {
      if (this.queryParams[filter.filterId]) {
        for (let value of filter.values) {
          if (value.id == this.queryParams[filter.filterId]) {
            value.selected = true;
            filter.countSelectedValues = 1;
            break;
          }
        }
      }else{
        this.clearfFilter(filter);
      }
    }

  }
  private validateYearRange(navigateTo:boolean=false){
    let validYears = true;

    if(this.periodFilter.selectedToValue && (this.periodFilter.selectedToValue.length == 0 ||  !Dates.isValidYear(this.periodFilter.selectedToValue, Dates.currentYear - 20, Dates.currentYear))){
      this.periodFilter.selectedToValue = Dates.currentYear+"";
      validYears = false;
    }
    if( this.periodFilter.selectedFromValue && (this.periodFilter.selectedFromValue.length == 0 || !Dates.isValidYear(this.periodFilter.selectedFromValue, Dates.currentYear - 20, Dates.currentYear))){
      this.periodFilter.selectedFromValue = Dates.currentYear - 20+"";
      validYears = false;
    }
    if(this.periodFilter.selectedFromValue && this.periodFilter.selectedFromValue.length && this.periodFilter.selectedToValue && this.periodFilter.selectedToValue.length > 0 && parseInt(this.periodFilter.selectedFromValue, 10) > parseInt(this.periodFilter.selectedToValue, 10)){
      this.periodFilter.selectedFromValue = this.periodFilter.selectedToValue;
      validYears = false;
    }
    if(!validYears || navigateTo){
      if(this.periodFilter.selectedFromValue || this.periodFilter.selectedToValue){
        this.queryParams["year"]='range'+(this.periodFilter.selectedFromValue?this.periodFilter.selectedFromValue:'')+":"+(this.periodFilter.selectedToValue?this.periodFilter.selectedToValue:"");
      }else{
         delete this.queryParams["year"];
      }
      // this.location.go(location.pathname, this.routerHelper.createQueryParamsString( Object.keys(this.queryParams), Object.values(this.queryParams)));
      this.router.navigate([], {queryParams: this.queryParams });
      this.setIndicators();
    }
  }
  clearAll(){
    for(let filter of this.filters) {
      this.clearfFilter(filter);
    }
    this.periodFilter.selectedFromValue = "";
    this.periodFilter.selectedToValue = "";
    this.validateYearRange(true)
  }
  clearfFilter(filter:Filter){
    filter.countSelectedValues = 0;
    filter.radioValue = "";
    for (let value of filter.values) {
      if (value.selected) {
        value.selected = false;
      }
    }
    if (this.queryParams[filter.filterId]) {
      delete this.queryParams[filter.filterId];
    }
  }
  countSelectedFilters():number{
    let count = 0;
    if(this.periodFilter.selectedFromAndToValues.length > 0){
      count+=2;
    }
    for(let filter of this.filters) {
      count +=filter.countSelectedValues;
    }
    return count;
  }
  public get open() {
    return this.layoutService.open;
  }

  private getPageContents() {
    this.helper.getPageHelpContents(this.properties, 'monitor', this._router.url).subscribe(contents => {
      this.pageContents = contents;
    })
  }

  private getDivContents() {
    this.helper.getDivHelpContents(this.properties, 'monitor', this._router.url).subscribe(contents => {
      this.divContents = contents;
    })
  }

  private setView(params: Params) {
    this.loading = false;
    if (params['topic']) {
      this.activeTopic = this.stakeholder.topics.find(topic => topic.alias === decodeURIComponent(params['topic']) && this.isPublicOrIsMember(topic.isPublic) && topic.isActive);
      if (this.activeTopic) {
        if (params['category']) {
          this.activeCategory = this.activeTopic.categories.find(category =>
            (category.alias === params['category']) && this.isPublicOrIsMember(category.isPublic) && category.isActive);
          if (!this.activeCategory) {
            this.navigateToError();
            return;
          }
        } else {
          this.activeCategory = this.activeTopic.categories.find(category => this.isPublicOrIsMember(category.isPublic) && category.isActive);
          if (this.activeCategory) {
            this.activeSubCategory = this.activeCategory.subCategories.find(subCategory =>
              this.isPublicOrIsMember(subCategory.isPublic) && subCategory.isActive);
            if (this.activeSubCategory) {
              this.setIndicators();
            }
          }
          return;
        }
        if (this.activeCategory) {
          if (params['subCategory']) {
            this.activeSubCategory = this.activeCategory.subCategories.find(subCategory =>
              (subCategory.alias === params['subCategory'] && this.isPublicOrIsMember(subCategory.isPublic) && subCategory.isActive));
            if (!this.activeSubCategory) {
              this.navigateToError();
              return;
            }
          } else {
            this.activeSubCategory = this.activeCategory.subCategories.find(subCategory =>
              this.isPublicOrIsMember(subCategory.isPublic) && subCategory.isActive);
          }
          if (this.activeSubCategory) {
            this.setIndicators();
          } else {
            this.navigateToError();
          }
          return;
        } else {
          this.activeSubCategory = null;
        }
      } else {
        this.navigateToError();
        return;
      }
    } else {
      this.activeTopic = this.stakeholder.topics.find(topic => this.isPublicOrIsMember(topic.isPublic) && topic.isActive);
      if (this.activeTopic) {
        this.activeCategory = this.activeTopic.categories.find(category => this.isPublicOrIsMember(category.isPublic) && category.isActive);
        if (this.activeCategory) {
          this.activeSubCategory = this.activeCategory.subCategories.find(subCategory => this.isPublicOrIsMember(subCategory.isPublic) && subCategory.isActive);
          if (this.activeSubCategory) {
            this.setIndicators();
          }
        }
      }
    }
  }

  filter(){
    this.validateYearRange(true);
  }
  filterChanged($event, navigate:boolean = true) {
    let selected = "";
    for(let value of $event.value.values){
      if(value.selected){
        selected = value.id;
        break;
      }
    }
    if(selected){
      this.queryParams[$event.value.filterId]=selected;
    }else{
      delete this.queryParams[$event.value.filterId];
    }
    if(navigate) {
      this.router.navigate([], {queryParams: this.queryParams  });
      this.setIndicators();
    }

  }
  private getfl0(){
    if (this.queryParams["relfundinglevel0_id"] && this.filters.length > 0){
      return this.queryParams["relfundinglevel0_id"].split("::")[this.queryParams["relfundinglevel0_id"].split("::").length -1];
    }
    return null;
  }
  private getCoFunded(){
    if (this.queryParams["co-funded"] && this.filters.length > 0){
      return this.queryParams["co-funded"] && this.queryParams["co-funded"]=="co-funded-results";
    }
    return false;
  }
    clearPeriodFilter(){
    if(this.periodFilter.selectedFromValue || this.periodFilter.selectedToValue){
      this.periodFilter.selectedFromValue = "";
      this.periodFilter.selectedToValue = "";
      this.filter();
    }

  }
  private setIndicators() {
    this.periodFilter.selectedFromAndToValues = (this.periodFilter.selectedFromValue || this.periodFilter.selectedToValue?((this.periodFilter.selectedFromValue && !this.periodFilter.selectedToValue?"From ":"")+(!this.periodFilter.selectedFromValue && this.periodFilter.selectedToValue?"Until ":"")+ (this.periodFilter.selectedFromValue?this.periodFilter.selectedFromValue:"") +
      (this.periodFilter.selectedFromValue && this.periodFilter.selectedToValue?" - ":"")+ (this.periodFilter.selectedToValue?this.periodFilter.selectedToValue:"")):"");
    //clear numbers when filters change
    this.numberResults.clear();
    let urls: Map<string, [number, number][]> = new Map<string, [number, number][]>();
    this.activeSubCategory.numbers.forEach((section, i) => {
      section.indicators.forEach((number, j) => {
        if (number.isActive && this.isPublicOrIsMember(number.isPublic)) {
          let url =this.indicatorUtils.getFullUrlWithFilters(this.stakeholder, number.indicatorPaths[0], this.getfl0(), this.periodFilter.selectedFromValue, this.periodFilter.selectedToValue, this.getCoFunded());
          const pair = JSON.stringify([number.indicatorPaths[0].source, url]);
          const indexes = urls.get(pair) ? urls.get(pair) : [];
          indexes.push([i, j]);
          urls.set(pair, indexes);
        }
      });
    });
    urls.forEach((indexes, pair) => {
      pair = JSON.parse(pair);
      this.statisticsService.getNumbers(this.statisticsService.getSourceType(pair[0]),  pair[1]).subscribe(response => {
        indexes.forEach(([i, j]) => {
          let result = JSON.parse(JSON.stringify(response));
          this.activeSubCategory.numbers[i].indicators[j].indicatorPaths[0].jsonPath.forEach(jsonPath => {
            if (result) {
              result = result[jsonPath];
            }
          });
          this.numberResults.set(i + '-' + j, result);
        });
      })
    });
    this.activeSubCategory.charts.forEach((section, i) => {
      section.indicators.forEach((indicator, j) => {
        if (indicator.indicatorPaths.length > 0) {
          indicator.indicatorPaths[0].safeResourceUrl = this.getUrlByStakeHolder(indicator.indicatorPaths[0]);
          this.chartsActiveType.set(i + '-' + j, indicator.indicatorPaths[0]);
        }
      });
    });
    if (this.cdr && !(this.cdr as ViewRef).destroyed) {
      this.cdr.detectChanges();
    }
  }

  public getUrlByStakeHolder(indicatorPath: IndicatorPath) {
    return this.sanitizer.bypassSecurityTrustResourceUrl(
      this.statisticsService.getChartUrl(indicatorPath.source, this.indicatorUtils.getFullUrlWithFilters(this.stakeholder, indicatorPath,  this.getfl0(), this.periodFilter.selectedFromValue, this.periodFilter.selectedToValue, this.getCoFunded())));
  }

  public setActiveChart(i: number, j: number, type: string) {
    let activeChart = this.activeSubCategory.charts[i].indicators[j].indicatorPaths.filter(indicatorPath => indicatorPath.type === type)[0];
    activeChart.safeResourceUrl = this.getUrlByStakeHolder(activeChart);
    this.chartsActiveType.set(i + '-' + j, activeChart);
  }

  private navigateToError() {
    this._router.navigate(['/error'], {queryParams: {'page': this._router.url}});
  }

  public navigateTo(stakeholder: string, topic: string, category: string = null, subcategory: string = null) {
    let url = stakeholder + '/' + topic + ((category) ? ('/'
      + category) : '') + ((subcategory) ? ('/' + subcategory) : '');
    return this._router.navigate([url],{ queryParams: this.queryParams});
  }

  public quote(param: string): string {
    return StringUtils.quote(param);
  }

  public ngOnDestroy() {
    if (this.piwiksub) {
      this.piwiksub.unsubscribe();
    }
  }

  isAdmin(){
    return this.user && (Session.isPortalAdministrator(this.user) || Session.isCommunityCurator(this.user) || Session.isMonitorCurator(this.user));
  }

  public isPublicOrIsMember(isPublic: boolean): boolean {
    if (isPublic) {
      return true;
    } else {
      if (this.isViewPublic) { // preview for not members
        return false;
      } else if(this.isAdmin()) {
        // if user is member, return true
        return true;
      }
      return false;
    }
  }
  public countSubCategoriesToShow(category:Category): number {
    let counter = 0;
    for (let sub of category.subCategories) {
      if(sub.isActive) {
        if (sub.isPublic) {
          // return true;
          counter++;
        }else if (this.isAdmin()) {
          counter++;
        }
      }
    }
    return counter;
  }
  /*
  Feedback mail
   */
  public get mailText() {
    return "mailto:"+this.properties.feedbackmail+"?subject=%5BOpenAIRE%20Monitor%5D%20"+(this.stakeholder?this.stakeholder.name:"")+"%20dashboard%20feedback"
  }
  mailMe(){
    window.location.href = this.mailText;
  }
}