import { Injectable } from '@angular/core';
import { Observable } from 'rxjs';
import { HttpClient, HttpParams } from "@angular/common/http";
import { AppConfig } from "../shared/app.config";
import { ICodeListItem } from '../models/code.list.item';

@Injectable({
  providedIn: 'root',
})
export class CodeListItemService {
  constructor(public httpClient: HttpClient, public appConfig: AppConfig) {
  }

  ApiEndpoint() {
    return this.appConfig.getConfig("apiEndPoint");
  }

  getCodeListItems(codelist: string[], codegroup?: string, dataFilter?: any): Observable<ICodeListItem[]> {
    var params = new HttpParams();
    for (const cl of codelist) {
      params = params.append('cl', cl);
    }
    if (codegroup) params = params.append("g", codegroup);
    if (dataFilter) params = params.append("df", dataFilter);
    return this.httpClient.get<ICodeListItem[]>(`${this.ApiEndpoint()}/api/v1/codelistitems/`, { params: params });
  }
}