import { mapResponse } from '@ngrx/operators';
import { EventInstance } from '@ngrx/signals/events';
import { Observable } from 'rxjs';
import { describeError } from '../notifications';

type Creator = (message: string) => EventInstance<string, string>;

/** Runs a command and turns its outcome into a succeeded/failed event. */
export function runCommand<T>(
  command$: Observable<T>,
  successMessage: string,
  succeeded: Creator,
  failed: Creator,
) {
  return command$.pipe(
    mapResponse({
      next: () => succeeded(successMessage),
      error: (error) => failed(describeError(error)),
    }),
  );
}