import { ErrorObservable } from 'rxjs/observable/ErrorObservable';
import { Response } from '@angular/http';
import { IErrorHandler } from './error-handler.interface';
import { IApiErrorHandler } from './api-error-handler.interface';

export class ErrorHandlerService implements IErrorHandler {

  public constructor(
    private apiErrorHandler: IApiErrorHandler,
    private fallbackErrorHandler: IErrorHandler,
  ) {}

  public handle(error?: any): ErrorObservable {
    if (error instanceof Response) {
      return this.apiErrorHandler.handle(error);
    }
    return this.fallbackErrorHandler.handle(error);
  }
}