import { HttpClient } from '@angular/common/http';
import { Injectable } from '@angular/core';
import { Observable } from 'rxjs/internal/Observable';
import { catchError } from 'rxjs/operators';

import { ErrorLoggerService } from '../core/error-logger.service';

import { Attendance } from './attendance';

const url = '/api/attendance';
const serviceName = 'AttendanceService';

@Injectable({ providedIn: 'root' })
export class AttendanceService {
  constructor(private http: HttpClient, private log: ErrorLoggerService) {}

  get(date: string | null): Observable<Attendance> {
    const getUrl: string = date === null ? url : `${url}/${date}`;
    return this.http
      .get<Attendance>(getUrl)
      .pipe(
        catchError(this.log.handleError(serviceName, `get date=${date}`)),
      ) as Observable<Attendance>;
  }

  save(attendance: Attendance): Observable<Attendance> {
    return this.http
      .post<Attendance>(`${url}/${attendance.date}`, attendance)
      .pipe(catchError(this.log.handleError(serviceName, 'save'))) as Observable<Attendance>;
  }
}