D-Net

import {Injectable} from "@angular/core";

import {HttpClient, HttpErrorResponse} from "@angular/common/http";

import {Observable} from "rxjs";

import {Indicator, Stakeholder} from "../utils/entities/stakeholder";

import {map} from "rxjs/operators";

import {EnvProperties} from "../openaireLibrary/utils/properties/env-properties";

@Injectable()

export class StakeholderService {

  constructor(private http: HttpClient) {

  }

  getStakeholder(alias: string): Observable<Stakeholder> {

    return this.http.get<any>('./assets/stakeholders.json').pipe(map(json => {

      let stakeholder = json.stakeholders.filter(stakeholder => stakeholder.alias === alias)[0];

      if (stakeholder) {

        stakeholder.topics = stakeholder.topics.filter(topic => topic.isActive && topic.isPublic);

        return stakeholder;

      } else {

        throw new HttpErrorResponse({

          error: {

            message: 'No Stakeholder has been found',

            status: 404

          }

        })

      }

    }));

  }

  getIndicator(id: string): Observable<Indicator> {

    return this.http.get<any>('./assets/stakeholders.json').pipe(map(json => {

      return json.indicators.filter(indicator => indicator.id === id)[0];

    }))

  }

  getIndicators(ids: string[]): Observable<Indicator[]> {

    return this.http.get<any>('./assets/stakeholders.json').pipe(map(json => {

      return json.indicators.filter(indicator => ids.indexOf(indicator.id) !== -1);

    }))

  }

  getNumber(properties: EnvProperties, url: string, jsonPath: string[], stakeholder: Stakeholder): Observable<any> {

    const statsUrl = url.replace('{index_shortName}', stakeholder.index_shortName).

                   replace('{index_id}', stakeholder.index_id).

                   replace('{index_name}', stakeholder.index_name);

    return this.http.get<any>(properties.statisticsAPIURL + statsUrl).pipe(map(response => {

      jsonPath.forEach(field => {

        response = response[field];

      });

      return response;

    }));

  }

}