import {AfterViewInit, ChangeDetectorRef, Component, OnDestroy, OnInit} 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 {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 "../services/stakeholder.service";
import {Category, ChartHelper, IndicatorPath, Stakeholder, SubCategory, Topic} from "../utils/entities/stakeholder";
import {StatisticsService} from "../utils/services/statistics.service";
import {Item, Sidebar} from "../utils/entities/sidebar";
import {IndicatorUtils} from "../utils/indicator-utils";
import {LayoutService} from "../library/sharedComponents/sidebar/layout.service";

@Component({
  selector: 'monitor',
  templateUrl: 'monitor.component.html',
})
export class MonitorComponent implements OnInit, OnDestroy {
  public piwiksub: any;
  public pageContents = null;
  public divContents = null;
  public status: number;
  public loading: boolean = true;
  public indicatorUtils: IndicatorUtils = new IndicatorUtils();
  public activeTopic: Topic = null;
  public activeCategory: Category = null;
  public activeSubCategory: SubCategory = null;
  public sideBar: Sidebar = null;
  public errorCodes: ErrorCodes;
  public stakeholder: Stakeholder;
  public numberResults: Map<number, number> = new Map<number, number>();
  public chartsActiveType: Map<number, IndicatorPath> = new Map<number, IndicatorPath>();
  private errorMessages: ErrorMessagesComponent;
  properties: EnvProperties;
  fundingL0;
  startYear;
  endYear;

  constructor(
    private route: ActivatedRoute,
    private _router: Router,
    private _meta: Meta,
    private _title: Title,
    private _piwikService: PiwikService,
    private helper: HelperService,
    private stakeholderService: StakeholderService,
    private statisticsService: StatisticsService,
    private layoutService: LayoutService,
    private seoService: SEOService,
    private cdr: ChangeDetectorRef,
    private sanitizer: DomSanitizer) {
      this.errorCodes = new ErrorCodes();
      this.errorMessages = new ErrorMessagesComponent();
      this.status = this.errorCodes.LOADING;
  }

  public ngOnInit() {
    this.route.data
      .subscribe((data: { envSpecific: EnvProperties }) => {
        this.route.params.subscribe(params => {
          this.properties = data.envSpecific;
          var url = data.envSpecific.baseLink + this._router.url;
          if (!this.stakeholder || this.stakeholder.index_id !== params['stakeholder']) {
            this.status = this.errorCodes.LOADING;
            this.numberResults = new Map<number, number>();
            this.chartsActiveType = new Map<number, IndicatorPath>();
            this.stakeholderService.getStakeholderAsObservable().subscribe(stakeholder => {
              if(stakeholder) {
                this.stakeholder = stakeholder;
                this.seoService.createLinkForCanonicalURL(url, false);
                this._meta.updateTag({content: url}, "property='og:url'");
                var description = "Monitor Dashboard | " + this.stakeholder.index_name;
                var title = "Monitor Dashboard | " + this.stakeholder.index_shortName;
                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);
              }
            }, error => {
              this.navigateToError();
            })
          } else {
            this.setView(params);
          }
        });
      });
  }

  public get open() {
    return this.layoutService.open;
  }

  public toggleOpen(event = null) {
    if(!event) {
      this.layoutService.setOpen(!this.open);
    } else if(event && event['value'] === true) {
      this.layoutService.setOpen(false);
    }
  }

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

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

  private setView(params: Params) {
    if (params && params['topic']) {
      this.activeTopic = this.stakeholder.topics.filter(topic => topic.alias === decodeURIComponent(params['topic']))[0];
      if (this.activeTopic) {
        if (params['category']) {
          this.activeCategory = this.activeTopic.categories.filter(category =>
            (category.alias === params['category']) && category.isPublic && category.isActive)[0];
        } else {
          let category: Category = this.activeTopic.categories[0];
          if(category) {
            this.navigateTo(this.stakeholder.alias, this.activeTopic.alias, category.alias);
          } else {
            this.navigateToError();
          }
          return;
        }
        if (this.activeCategory) {
          if (params['subCategory']) {
            this.activeSubCategory = this.activeCategory.subCategories.filter(subCategory =>
              (subCategory.alias === params['subCategory'] && subCategory.isPublic && subCategory.isActive))[0];
          } else {
            this.activeSubCategory = this.activeCategory.subCategories.filter(subCategory =>
              !subCategory.alias && subCategory.isPublic && subCategory.isActive)[0];
          }
          if (this.activeSubCategory) {
            this.setSideBar();
            this.setIndicators();
            return;
          } else {
            let subCategory: SubCategory = this.activeCategory.subCategories.filter(subCategory =>
              subCategory.isPublic && subCategory.isActive)[0];
            this.navigateTo(this.stakeholder.alias, this.activeTopic.alias, this.activeCategory.alias, subCategory.alias);
            return;
          }
        }
      }
      this.navigateToError();
    } else {
      let topic: Topic = this.stakeholder.topics[0];
      let category: Category = topic.categories.filter(category => category.isPublic && category.isActive)[0];
      if(topic && category) {
        this.navigateTo(this.stakeholder.alias, topic.alias, category.alias);
      } else {
        this.navigateToError();
      }
    }
  }

  private setSideBar() {
    let items: Item[] = [];
    this.activeTopic.categories.forEach(category => {
      if (category.isPublic && category.isActive) {
        let subItems: Item[] = [];
        category.subCategories.forEach(subCategory => {
          if (subCategory.alias != null && subCategory.isPublic && subCategory.isActive) {
            subItems.push(new Item(subCategory.name, (
              '/monitor/' + this.stakeholder.alias + '/' + this.activeTopic.alias + '/' + category.alias + '/' + subCategory.alias),
              null, null, false));
          }
        });
        const open = this.activeCategory.alias === category.alias;
        items.push(new Item(category.name, (
          '/monitor/' + this.stakeholder.alias + '/' + this.activeTopic.alias + '/' + category.alias),
          subItems, null, open));
      }
    });
    this.sideBar = new Sidebar(items, null);
  }

  private setIndicators() {
    let urls: Map<string, number[]> = new Map<string, number[]>();
    this.activeSubCategory.numbers.forEach((number, index) => {
      if (number.isActive && number.isPublic) {
        let url = number.indicatorPaths[0].url;
        //add fundingLevel0 filter in the query
        if(this.fundingL0 && number.indicatorPaths[0].filters.get("fundingL0")){
          url = url + number.indicatorPaths[0].filters.get("fundingL0").replace(ChartHelper.prefix+'fundingL0'+ChartHelper.suffix,encodeURIComponent(this.fundingL0));
        }
        const pair = JSON.stringify([number.indicatorPaths[0].source, url]);
        const indexes = urls.get(pair) ? urls.get(pair) : [];
        indexes.push(index);
        urls.set(pair, indexes);
      }
    });
    urls.forEach((indexes, pair) => {
      pair = JSON.parse(pair);
      this.statisticsService.getNumbers(pair[0], pair[1]).subscribe(response => {
        indexes.forEach(index => {
          let result = JSON.parse(JSON.stringify(response));
          this.activeSubCategory.numbers[index].indicatorPaths[0].jsonPath.forEach(jsonPath => {
            if (result) {
              result = result[jsonPath];
            }
          });
          this.numberResults.set(index, result);
        });
      })
    });
    this.activeSubCategory.charts.forEach((chart, index) => {
      if (chart.indicatorPaths.length > 0) {
        chart.indicatorPaths[0].safeResourceUrl = this.getUrlByStakeHolder(chart.indicatorPaths[0]);
        this.chartsActiveType.set(index, chart.indicatorPaths[0]);
      }
    });
    this.cdr.detectChanges();
  }

  public getUrlByStakeHolder(indicatorPath: IndicatorPath) {
    return this.sanitizer.bypassSecurityTrustResourceUrl(
      this.statisticsService.getChartUrl(indicatorPath.source, this.indicatorUtils.getFullUrl(indicatorPath, this.fundingL0, this.startYear, this.endYear)));
  }

  public setActiveChart(index, type: string) {
    let activeChart = this.activeSubCategory.charts[index].indicatorPaths.filter(indicatorPath => indicatorPath.type === type)[0];
    activeChart.safeResourceUrl = this.getUrlByStakeHolder(activeChart);
    this.chartsActiveType.set(index, 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 = '/monitor/' + stakeholder + '/' + topic + ((category) ? ('/'
      + category) : '') + ((subcategory) ? ('/' + subcategory) : '');
    return this._router.navigate([url]);
  }

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

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