import {ChangeDetectorRef, Component, HostListener, OnDestroy, OnInit, ViewChild, 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,
  Indicator,
  IndicatorPath,
  IndicatorSize,
  Section,
  Stakeholder,
  SubCategory,
  Topic,
  Visibility
} from "../openaireLibrary/monitor/entities/stakeholder";
import {StatisticsService} from "../openaireLibrary/monitor-admin/utils/services/statistics.service";
import {IndicatorUtils} from "../openaireLibrary/monitor-admin/utils/indicator-utils";
import {LayoutService} from "../openaireLibrary/dashboard/sharedComponents/sidebar/layout.service";
import {UntypedFormBuilder, UntypedFormControl} from "@angular/forms";
import {Subscriber, 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 {RouterHelper} from "../openaireLibrary/utils/routerHelper.class";
import {properties} from "../../environments/environment";
import {IndexInfoService} from "../openaireLibrary/utils/indexInfo.service";
import {ConfigurationService} from "../openaireLibrary/utils/configuration/configuration.service";
import {ClickEvent} from '../openaireLibrary/utils/click/click-outside-or-esc.directive';
import {RangeFilterComponent} from "../openaireLibrary/utils/rangeFilter/rangeFilter.component";

@Component({
  selector: 'monitor',
  templateUrl: 'monitor.component.html',
  styleUrls: ['monitor.component.less']
})
export class MonitorComponent implements OnInit, OnDestroy {
  public user: User;
  public subscriptions: any[] = [];
  title;
  description;
  public pageContents = null;
  public divContents = null;
  public status: number;
  public loading: boolean = true;
  public view: Visibility;
  public indicatorUtils: IndicatorUtils = new IndicatorUtils();
  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 = properties;
  public routerHelper: RouterHelper = new RouterHelper();
  filters: Filter[] = [];
  queryParams = {};
  public currentYear = new Date().getFullYear();
  periodFilter: RangeFilter = {
    title: "Time range",
    filterId: "year",
    originalFilterIdFrom: null,
    originalFilterIdTo: null,
    selectedFromValue: null,
    selectedToValue: null,
    selectedFromAndToValues: ""
  };
  @ViewChild('rangeFilter') rangeFilter: RangeFilterComponent;
  privateStakeholder = false;
  public keyword: UntypedFormControl;
  public statsUpdateDate: Date;
	public isFullscreen: boolean = false;
  public isMobile: boolean = false;
  
  
	@HostListener('fullscreenchange', ['$event'])
	@HostListener('webkitfullscreenchange', ['$event'])
	@HostListener('mozfullscreenchange', ['$event'])
	@HostListener('MSFullscreenChange', ['$event'])
	screenChange(event) {
		this.isFullscreen = !this.isFullscreen;
	}

  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 indexInfoService: IndexInfoService,
    private sanitizer: DomSanitizer, private _fb: UntypedFormBuilder, private router: Router,
    private configurationService: ConfigurationService) {
    this.errorCodes = new ErrorCodes();
    this.errorMessages = new ErrorMessagesComponent();
    this.status = this.errorCodes.LOADING;
  }
  
  public ngOnInit() {
    if (typeof document !== 'undefined') {
      this.subscriptions.push(this.indexInfoService.getStatsLastDate(this.properties).subscribe(lastIndexUpdate => {
        if (lastIndexUpdate) {
          this.statsUpdateDate = new Date(lastIndexUpdate);
        }
      }));
    }
    this.keyword = this._fb.control('');
    let subscription: Subscription;
    this.layoutService.isMobile.subscribe(isMobile => {
      this.isMobile = isMobile;
      this.cdr.detectChanges();
    });
    this.subscriptions.push(this.userManagementService.getUserInfo().subscribe(user => {
      this.user = user;
      this.subscriptions.push(this.route.params.subscribe(params => {
        this.loading = true;
        this.activeTopic = null;
        this.activeCategory = null;
        this.activeSubCategory = null;
        if (subscription) {
          subscription.unsubscribe();
        }
        var url = properties.domain + properties.baseLink + this._router.url;
        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:[{fname: "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.subscriptions.push(this.route.queryParams.subscribe( queryParams => {
                this.handleQueryParams(queryParams, params);
                this.seoService.createLinkForCanonicalURL(url, false);
                this._meta.updateTag({content: url}, "property='og:url'");
                this.description = "Monitor Dashboard | " + this.stakeholder.name;
                this.title = "Monitor Dashboard | " + this.stakeholder.name;
                this._meta.updateTag({content: this.description}, "name='description'");
                this._meta.updateTag({content: this.description}, "property='og:description'");
                this._meta.updateTag({content: this.title}, "property='og:title'");
                this._title.setTitle(this.title);
                this.subscriptions.push(this._piwikService.trackView(this.properties, this.title).subscribe());
                if (this.hasPermission((this.view && this.isManager(this.stakeholder))?this.view:this.stakeholder.visibility)) {
                  //this.getDivContents();
                  // this.getPageContents();
                  this.status = this.errorCodes.DONE;
                  this.setView(params);
                } else {
                  this.privateStakeholder = true;
                  // this.navigateToError();
                  if (subscription) {
                    subscription.unsubscribe();
                  }
                }
              }));
            } else {
              this.navigateToError();
              if (subscription) {
                subscription.unsubscribe();
              }
            }
          });
          this.subscriptions.push(subscription);
        } else {
          this.subscriptions.push(this._piwikService.trackView(this.properties, this.title).subscribe());
          this.subscriptions.push(this.route.queryParams.subscribe( queryParams => {
            this.handleQueryParams(queryParams, params);
          }));
        }
      }));
    }));
  }

  get monitorLink() {
    return "https://" + (this.properties.environment == 'beta' ? 'beta.' : '') + 'monitor.openaire.eu';
  }
  
  private handleQueryParams(queryParams, params) {
    this.queryParams = Object.assign({}, queryParams);
    this.initializeFilters();
    this.setView(params);
    if(!this.user && (this.filters.filter(filter => this.queryParams[filter.filterId]).length > 0 || this.queryParams['year'])) {
      if(queryParams['view']) {
        this.router.navigate([], {queryParams: {view: queryParams['view']}});
      } else {
        this.router.navigate([], {queryParams: {}});
      }
    }
    this.view = queryParams['view'];
  }
  
  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 == StringUtils.URIDecode(StringUtils.unquote(this.queryParams[filter.filterId]))) {
            value.selected = true;
            filter.countSelectedValues = 1;
            break;
          }
        }
      } else {
        this.clearFilter(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.clearFilter(filter);
    }
    this.periodFilter.selectedFromValue = "";
    this.periodFilter.selectedToValue = "";
    this.validateYearRange(true)
  }
  
  clearFilter(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 += 1;
    }
    for (let filter of this.filters) {
      count += filter.countSelectedValues;
    }
    return count;
  }
  
  public get open() {
    return this.layoutService.open;
  }
  
  private getPageContents() {
    this.subscriptions.push(this.helper.getPageHelpContents(this.properties, this.properties.adminToolsCommunity, this._router.url).subscribe(contents => {
      this.pageContents = contents;
    }));
  }
  
  private getDivContents() {
    this.subscriptions.push(this.helper.getDivHelpContents(this.properties, this.properties.adminToolsCommunity, 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.hasPermission(topic.visibility));
      if (this.activeTopic) {
        if (params['category']) {
          this.activeCategory = this.activeTopic.categories.find(category =>
            (category.alias === params['category']) && this.hasPermission(category.visibility));
          if (!this.activeCategory) {
            this.navigateToError();
            return;
          }
        } else {
          this.activeCategory = this.activeTopic.categories.find(category => this.hasPermission(category.visibility));
          if (this.activeCategory) {
            this.activeSubCategory = this.activeCategory.subCategories.find(subCategory =>
              this.hasPermission(subCategory.visibility));
            if (this.activeSubCategory) {
              this.setIndicators();
            }
          }
          return;
        }
        if (this.activeCategory) {
          if (params['subCategory']) {
            this.activeSubCategory = this.activeCategory.subCategories.find(subCategory =>
              (subCategory.alias === params['subCategory'] && this.hasPermission(subCategory.visibility)));
            if (!this.activeSubCategory) {
              this.navigateToError();
              return;
            }
          } else {
            this.activeSubCategory = this.activeCategory.subCategories.find(subCategory =>
              this.hasPermission(subCategory.visibility));
          }
          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.hasPermission(topic.visibility));
      if (this.activeTopic) {
        this.activeCategory = this.activeTopic.categories.find(category => this.hasPermission(category.visibility));
        if (this.activeCategory) {
          this.activeSubCategory = this.activeCategory.subCategories.find(subCategory => this.hasPermission(subCategory.visibility));
          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] = StringUtils.quote(StringUtils.URIEncode(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) {
      let value = StringUtils.URIDecode(StringUtils.unquote(this.queryParams["relfundinglevel0_id"]));
      return value.split("::")[value.split("::").length - 1];
    }
    return null;
  }
  
  private getCoFunded() {
    if (this.queryParams["co-funded"] && this.filters.length > 0) {
      return this.queryParams["co-funded"] && StringUtils.URIDecode(StringUtils.unquote(this.queryParams["co-funded"])) == "co-funded-results";
    }
    return false;
  }
  
  clearPeriodFilter() {
    if (this.periodFilter.selectedFromValue || this.periodFilter.selectedToValue) {
      this.periodFilter.selectedFromValue = "";
      this.periodFilter.selectedToValue = "";
      if(this.rangeFilter) {
        this.rangeFilter.clearFilter();
      }
      this.filter();
    }
  }
  
  clearFilterValue(filter: Filter, value: Value) {
    value.selected = false;
    filter.radioValue = '';
    filter.countSelectedValues = filter.countSelectedValues - 1;
    this.filterChanged({
      value: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 (this.hasPermission(number.visibility)) {
          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);
      let activeSubcategory = this.activeSubCategory._id;
      this.subscriptions.push(this.statisticsService.getNumbers(this.indicatorUtils.getSourceType(pair[0]), pair[1]).subscribe(response => {
        if(activeSubcategory === this.activeSubCategory._id) {
          indexes.forEach(([i, j]) => {
            if( this.activeSubCategory?.numbers[i]?.indicators[j]) {
              let result = JSON.parse(JSON.stringify(response));
              this.activeSubCategory.numbers[i].indicators[j].indicatorPaths[0].jsonPath.forEach(jsonPath => {
                if (result) {
                  result = result[jsonPath];
                }
              });
              if (typeof result === 'string' || typeof result === 'number') {
                result = Number(result);
                if (result === Number.NaN) {
                  result = 0;
                }
              } else {
                result = 0;
              }
              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.indicatorUtils.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([this.properties.errorLink], {queryParams: {'page': this._router.url}});
  }
  
  public quote(param: string): string {
    return StringUtils.quote(param);
  }
  
  public ngOnDestroy() {
    this.subscriptions.forEach(subscription => {
      if (subscription instanceof Subscriber) {
        subscription.unsubscribe();
      }
    });
  }
  
  public isMember(stakeholder: Stakeholder) {
    return this.user && (Session.isPortalAdministrator(this.user) || Session.isCurator(stakeholder.type, this.user)
      || Session.isManager(stakeholder.type, stakeholder.alias, this.user) || Session.isMember(stakeholder.type, stakeholder.alias, this.user));
  }
  
  public isManager(stakeholder: Stakeholder) {
    return this.user && (Session.isPortalAdministrator(this.user) || Session.isCurator(stakeholder.type, this.user) || Session.isManager(stakeholder.type, stakeholder.alias, this.user));
  }
  
  public hasPermission(visibility: Visibility): boolean {
    if(visibility === 'PUBLIC') {
      return true;
    } else if(visibility === 'RESTRICTED') {
      return (!this.view || this.view === 'RESTRICTED') && this.isMember(this.stakeholder);
    } else {
      return !this.view && this.isManager(this.stakeholder);
    }
  }
  
  public countSubCategoriesToShow(category: Category): number {
    return category.subCategories.filter(subCategory => this.hasPermission(subCategory.visibility)).length;
  }
  
  public countSectionsWithIndicatorsToShow(sections: Section[]):number {
    return sections.map(section => this.countIndicatorsToShow(section.indicators)).reduce((sum, current) => sum + current, 0);
  }
  
  public countIndicatorsToShow(indicators: Indicator[]): number {
    return indicators.filter(indicator => this.hasPermission(indicator.visibility)).length;
  }
  
  public get feedback() {
    return "mailto:" + this.properties.feedbackmail + "?subject=%5BOpenAIRE%20Monitor%5D%20" + (this.stakeholder ? this.stakeholder.name : "") + "%20dashboard%20feedback"
  }
  
  public getNumberClassBySize(size: IndicatorSize) {
    if (size === 'small') {
      return 'uk-width-medium@m uk-width-1-1';
    } else if (size === 'medium') {
      return 'uk-width-1-4@l uk-width-1-2@m uk-width-1-1';
    } else {
      return 'uk-width-1-2@l uk-width-1-1@m uk-width-1-1';
    }
  }
  
  public getChartClassBySize(size: IndicatorSize) {
    if (size === 'small') {
      return 'uk-width-1-3@xl uk-width-1-2@m uk-width-1-1';
    } else if (size === 'medium') {
      return 'uk-width-1-2@l uk-width-1-1';
    } else {
      return 'uk-width-1-1';
    }
  }

  public printReport() {
		window.print();
  }

  logIn() {
    this.userManagementService.login();
  }

	toggleDescriptionOverlay(event, indicator: Indicator) {
		event.stopPropagation();
    indicator.descriptionOverlay = !indicator.descriptionOverlay;
	}

	closeDescriptionOverlay(event: ClickEvent, indicator: Indicator) {
		if(event.clicked && indicator.descriptionOverlay) {
      indicator.descriptionOverlay = false;
		}
	}
}