import {Component, EventEmitter, Input, OnDestroy, OnInit, Output} from '@angular/core';
import {SearchResearchResultsService} from '../../services/searchResearchResults.service';
import {SearchDataprovidersService} from '../../services/searchDataproviders.service';
import {RefineFieldResultsService} from '../../services/refineFieldResults.service';
import {EnvProperties} from '../../utils/properties/env-properties';
import {properties} from '../../../../environments/environment';
import {NumberSize, NumberUtils} from '../../utils/number-utils.class';
import {BehaviorSubject, Observable, Subscription, zip} from 'rxjs';
import {RouterHelper} from "../../utils/routerHelper.class";
import {HelperFunctions} from "../../utils/HelperFunctions.class";
import {OpenaireEntities} from "../../utils/properties/searchFields";

export interface Numbers {
  publicationsSize?: NumberSize;
  datasetsSize?: NumberSize;
  datasetsLinkedSize?: NumberSize;
  softwareLinkedSize?: NumberSize;
  softwareSize?: NumberSize;
  otherSize?: NumberSize;
  fundersSize?: NumberSize;
  projectsSize?: NumberSize;
  datasourcesSize?: NumberSize;
	organizationsSize?: NumberSize;
}

type Entity = 'publication' | 'dataset' | 'software' | 'other' | 'project' | 'datasource' | 'organization';

interface Link {
  link: string,
  params?: any
}

@Component({
  selector: 'numbers',
  template: `
    <div *ngIf="!loading && numbers">
      <div class="uk-container uk-section uk-padding-remove-bottom uk-text-center">
        <div class="uk-grid uk-grid-large uk-child-width-1-3@m" uk-grid>
          <div *ngIf="numbers.fundersSize">
            <h3 *ngIf="links.get('project')">
              <a *ngIf="externalLink" [href]="links.get('project').link" target="_blank" class="uk-text-bold number">
                {{numbers.fundersSize.number|number}}<span class="number-size">{{numbers.fundersSize.size}}</span>
              </a>
              <a *ngIf="!externalLink" [routerLink]="links.get('project').link"
                 [queryParams]="links.get('project').params" class="uk-text-bold number">
                {{numbers.fundersSize.number|number}}<span class="number-size">{{numbers.fundersSize.size}}</span>
              </a>
            </h3>
            <span class="uk-text-uppercase uk-text-large">Funders</span>
          </div>
          <div *ngIf="numbers.datasourcesSize">
            <h3>
              <a *ngIf="externalLink" [href]="links.get('datasource').link" target="_blank" class="uk-text-bold number">
                {{numbers.datasourcesSize.number|number}}<span
                  class="number-size">{{numbers.datasourcesSize.size}}</span>
              </a>
              <a *ngIf="!externalLink" [routerLink]="links.get('datasource').link"
                 [queryParams]="links.get('datasource').params" class="uk-text-bold number">
                {{numbers.datasourcesSize.number|number}}<span
                  class="number-size">{{numbers.datasourcesSize.size}}</span>
              </a>
            </h3>
            <span class="uk-text-uppercase uk-text-large">{{openaireEntities.DATASOURCES}}</span>
          </div>
          <div *ngIf="numbers.projectsSize">
            <h3>
              <a *ngIf="externalLink" [href]="links.get('project').link" target="_blank" class="uk-text-bold number">
                {{numbers.projectsSize.number|number}}<span class="number-size">{{numbers.projectsSize.size}}</span>
              </a>
              <a *ngIf="!externalLink" [routerLink]="links.get('project').link"
                 [queryParams]="links.get('project').params" class="uk-text-bold number">
                {{numbers.projectsSize.number|number}}<span class="number-size">{{numbers.projectsSize.size}}</span>
              </a>
            </h3>
            <span class="uk-text-uppercase uk-text-large">{{openaireEntities.PROJECTS}}</span>
          </div>
        </div>
      </div>
      <div class="uk-section uk-margin-top" [ngClass]="backgroundClass">
        <div class="uk-container">
          <div class="uk-grid uk-flex-center uk-margin-auto-left@m uk-margin-auto-right@m uk-grid-large" uk-grid>
            <div *ngIf="numbers.publicationsSize" class="uk-width-1-2@m uk-flex uk-flex-center">
              <div class="number-width uk-flex uk-flex-column">
                <a *ngIf="externalLink" [href]="links.get('publication').link" target="_blank"
                   class="number uk-text-bold uk-margin-bottom uk-text-center uk-text-left@m">{{numbers.publicationsSize.count|number}}</a>
                <a *ngIf="!externalLink" [routerLink]="links.get('publication').link"
                   [queryParams]="links.get('publication').params"
                   class="number uk-text-bold uk-margin-bottom uk-text-center uk-text-left@m">{{numbers.publicationsSize.count|number}}</a>
                <div class="uk-text-uppercase uk-flex uk-flex-middle uk-flex-center uk-flex-left@m">
                  <icon name="book" ratio="1.5" [flex]="true" class="uk-margin-right" [customClass]="colorClass"></icon>
                  <span>{{openaireEntities.PUBLICATIONS}}</span>
                </div>
              </div>
            </div>
            <div *ngIf="numbers.datasetsSize" class="uk-width-1-2@m uk-flex uk-flex-center">
              <div class="number-width uk-flex uk-flex-column">
                <a *ngIf="externalLink" [href]="links.get('dataset').link" target="_blank"
                   class="number uk-text-bold uk-margin-bottom uk-text-center uk-text-left@m">{{numbers.datasetsSize.count|number}}</a>
                <a *ngIf="!externalLink" [routerLink]="links.get('dataset').link"
                   [queryParams]="links.get('dataset').params"
                   class="number uk-text-bold uk-margin-bottom uk-text-center uk-text-left@m">{{numbers.datasetsSize.count|number}}</a>
                <div class="uk-text-uppercase uk-flex uk-flex-middle uk-flex-center uk-flex-left@m">
                  <icon name="database" ratio="1.5" [flex]="true" class="uk-margin-right"
                        [customClass]="colorClass"></icon>
                  <span>{{openaireEntities.DATASETS}}</span>
                </div>
              </div>
            </div>
            <div *ngIf="numbers.softwareSize" class="uk-width-1-2@m uk-flex uk-flex-center">
              <div class="number-width uk-flex uk-flex-column">
                <a *ngIf="externalLink" [href]="links.get('software').link" target="_blank"
                   class="number uk-text-bold uk-margin-bottom uk-text-center uk-text-left@m">{{numbers.softwareSize.count|number}}</a>
                <a *ngIf="!externalLink" [routerLink]="links.get('software').link"
                   [queryParams]="links.get('software').params"
                   class="number uk-text-bold uk-margin-bottom uk-text-center uk-text-left@m">{{numbers.softwareSize.count|number}}</a>
                <div class="uk-text-uppercase uk-flex uk-flex-middle uk-flex-center uk-flex-left@m">
                  <icon name="cog" ratio="1.5" [flex]="true" class="uk-margin-right" [customClass]="colorClass"></icon>
                  <span>{{openaireEntities.SOFTWARE}}</span>
                </div>
              </div>
            </div>
            <div *ngIf="numbers.otherSize" class="uk-width-1-2@m uk-flex uk-flex-center">
              <div class="number-width uk-flex uk-flex-column">
                <a *ngIf="externalLink" [href]="links.get('other').link" target="_blank"
                   class="number uk-text-bold uk-margin-bottom uk-text-center uk-text-left@m">{{numbers.otherSize.count|number}}</a>
                <a *ngIf="!externalLink" [routerLink]="links.get('other').link"
                   [queryParams]="links.get('other').params"
                   class="number uk-text-bold uk-margin-bottom uk-text-center uk-text-left@m">{{numbers.otherSize.count|number}}</a>
                <div class="uk-text-uppercase uk-flex uk-flex-middle uk-flex-center uk-flex-left@m">
                  <icon name="earth" ratio="1.5" [flex]="true" class="uk-margin-right"
                        [customClass]="colorClass"></icon>
                  <span>{{openaireEntities.OTHER}}</span>
                </div>
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>
    <div *ngIf="loading" class="uk-container uk-section uk-text-center" style="min-height: 400px">
      <loading [color]="colorClass"></loading>
    </div>
  `,
})
export class NumbersComponent implements OnInit, OnDestroy {
  @Input() colorClass = 'portal-color';
  @Input() backgroundClass = null;
  /** Add a value if you want to apply refine query*/
  @Input() refineValue = null;
  /** True: Default initialization
   *  False: Call init method to initialize numbers */
  @Input() defaultInit = true;
  /** Add an external link for numbers link */
  @Input() externalLink;
  /** When numbers have been initialized this emitter will emitted */
  @Output() results: EventEmitter<Numbers> = new EventEmitter<Numbers>();
  public properties: EnvProperties = properties;
  public openaireEntities = OpenaireEntities;
  public routerHelper: RouterHelper = new RouterHelper();
  public numbers: Numbers = {};
  public loading: boolean = true;
  public links: Map<Entity, Link> = new Map<Entity, Link>();
  private params: Map<Entity, {}> = new Map<Entity, {}>();
  private emptySubject: BehaviorSubject<number> = new BehaviorSubject<number>(0);
  private subs: any[] = [];
  
  constructor(private searchResearchResultsService: SearchResearchResultsService,
              private searchDataprovidersService: SearchDataprovidersService,
              private refineFieldResultsService: RefineFieldResultsService) {
    this.links = new Map<Entity, Link>();
    this.params = new Map<Entity, {}>();
    this.emptySubject = new BehaviorSubject<number>(0);
  }
  
  ngOnInit() {
    if (this.defaultInit) {
      this.init();
    }
    this.setLinks();
  }
  
  setParams() {
    this.params.set('publication', {type: 'publications'});
    this.params.set('dataset', {type: 'datasets'});
    this.params.set('software', {type: 'software'});
    this.params.set('other', {type: 'other'});
    this.params.set('project', {});
    this.params.set('datasource', {});
    if (this.refineValue) {
      this.params.forEach((value) => {
        value['fq'] = this.refineValue;
      });
    }
  }
  
  setLinks() {
    this.setParams();
    if (this.externalLink) {
      this.links.set('publication', {
        link: this.externalLink + properties.searchLinkToResults +
          this.routerHelper.createQueryParamsString(Object.keys(this.params.get('publication')), HelperFunctions.getValues(this.params.get('publication')))
      });
      this.links.set('dataset', {
        link: this.externalLink + properties.searchLinkToResults +
          this.routerHelper.createQueryParamsString(Object.keys(this.params.get('dataset')), HelperFunctions.getValues(this.params.get('dataset')))
      });
      this.links.set('software', {
        link: this.externalLink + properties.searchLinkToResults +
          this.routerHelper.createQueryParamsString(Object.keys(this.params.get('software')), HelperFunctions.getValues(this.params.get('software')))
      });
      this.links.set('other', {
        link: this.externalLink + properties.searchLinkToResults +
          this.routerHelper.createQueryParamsString(Object.keys(this.params.get('other')), HelperFunctions.getValues(this.params.get('other')))
      });
      this.links.set('project', {
        link: this.externalLink + properties.searchLinkToProjects +
          this.routerHelper.createQueryParamsString(Object.keys(this.params.get('project')), HelperFunctions.getValues(this.params.get('project')))
      });
      this.links.set('datasource', {
        link: this.externalLink + properties.searchLinkToDataProviders +
          this.routerHelper.createQueryParamsString(Object.keys(this.params.get('datasource')), HelperFunctions.getValues(this.params.get('datasource')))
      });
    } else {
      this.links.set('publication', {
        link: properties.searchLinkToResults,
        params: this.routerHelper.createQueryParams(Object.keys(this.params.get('publication')), HelperFunctions.getValues(this.params.get('publication')))
      });
      this.links.set('dataset', {
        link: properties.searchLinkToResults,
        params: this.routerHelper.createQueryParams(Object.keys(this.params.get('dataset')), HelperFunctions.getValues(this.params.get('dataset')))
      });
      this.links.set('software', {
        link: properties.searchLinkToResults,
        params: this.routerHelper.createQueryParams(Object.keys(this.params.get('software')), HelperFunctions.getValues(this.params.get('software')))
      });
      this.links.set('other', {
        link: properties.searchLinkToResults,
        params: this.routerHelper.createQueryParams(Object.keys(this.params.get('other')), HelperFunctions.getValues(this.params.get('other')))
      });
      this.links.set('project', {
        link: properties.searchLinkToProjects,
        params: this.routerHelper.createQueryParams(Object.keys(this.params.get('project')), HelperFunctions.getValues(this.params.get('project')))
      });
      this.links.set('datasource', {
        link: properties.searchLinkToDataProviders,
        params: this.routerHelper.createQueryParams(Object.keys(this.params.get('datasource')), HelperFunctions.getValues(this.params.get('datasource')))
      });
    }
  }
  
  init(getDatasetsLinked = false, getSoftwareLinked = false, getPublications = true, getDatasets = true,
       getSoftware = true, getOther = true, getProjects = true, getDataProviders = true, refineValue: string = null) {
    this.loading = true;
    if (refineValue) {
      this.refineValue = refineValue;
    }
    let refineParams = (this.refineValue) ? ('&fq=' + this.refineValue) : null;
    this.subs.push(zip(
      (getPublications) ? this.searchResearchResultsService.numOfSearchResults('publication', '', this.properties, refineParams) : this.empty,
      (getDatasets) ? this.searchResearchResultsService.numOfSearchResults('dataset', '', this.properties, refineParams) : this.empty,
      (getDatasetsLinked) ? this.searchResearchResultsService.numOfSearchResultsLinkedToPub("dataset", this.properties) : this.empty,
      (getSoftware) ? this.searchResearchResultsService.numOfSearchResults('software', '', this.properties, refineParams) : this.empty,
      (getSoftwareLinked) ? this.searchResearchResultsService.numOfSearchResultsLinkedToPub("software", this.properties) : this.empty,
      (getOther) ? this.searchResearchResultsService.numOfSearchResults('other', '', this.properties, refineParams) : this.empty,
      (getProjects) ? this.refineFieldResultsService.getRefineFieldsResultsByEntityName(['funder'], 'project', this.properties, refineParams) : this.empty,
      (getDataProviders) ? this.searchDataprovidersService.numOfSearchDataproviders('', this.properties, refineParams) : this.empty
    ).subscribe((data: any[]) => {
      if (data[0] && data[0] > 0) {
        this.numbers.publicationsSize = NumberUtils.roundNumber(data[0]);
      }
      if (data[1] && data[1] > 0) {
        this.numbers.datasetsSize = NumberUtils.roundNumber(data[1]);
      }
      if (data[2] && data[2] > 0) {
        this.numbers.datasetsLinkedSize = NumberUtils.roundNumber(data[2]);
      }
      if (data[3] && data[3] > 0) {
        this.numbers.softwareSize = NumberUtils.roundNumber(data[3]);
      }
      if (data[4] && data[4] > 0) {
        this.numbers.softwareLinkedSize = NumberUtils.roundNumber(data[4]);
      }
      if (data[5] && data[5] > 0) {
        this.numbers.otherSize = NumberUtils.roundNumber(data[5]);
      }
      if (data[6][0] && data[6][0] > 0) {
        this.numbers.projectsSize = NumberUtils.roundNumber(data[6][0]);
      }
      if (data[6][1] && data[6][1].length > 0 && data[6][1][0].filterId == 'funder' && data[6][1][0].values) {
        this.numbers.fundersSize = NumberUtils.roundNumber(data[6][1][0].values.length);
      }
      if (data[7] && data[7] > 0) {
        this.numbers.datasourcesSize = NumberUtils.roundNumber(data[7]);
      }
      this.results.emit(this.numbers);
      this.loading = false;
    }, err => {
      this.handleError('Error getting numbers', err);
      this.loading = false;
    }));
  }
  
  ngOnDestroy() {
    this.subs.forEach(sub => {
      if (sub instanceof Subscription) {
        sub.unsubscribe();
      }
    });
  }
  
  get empty(): Observable<number> {
    return this.emptySubject.asObservable();
  }
  
  private handleError(message: string, error) {
    console.error('Numbers: ' + message, error);
  }
}