import { describe, it, expect, vi, beforeEach } from 'vitest';
import { refreshDiscover } from './playlists';

vi.mock('./client', () => ({
  apiFetch: vi.fn()
}));

import { apiFetch } from './client';

describe('refreshDiscover', () => {
  beforeEach(() => vi.clearAllMocks());

  it('POSTs the correct path and returns the response', async () => {
    const sample = { playlist_id: 'abc-123', track_count: 100 };
    (apiFetch as unknown as ReturnType<typeof vi.fn>).mockResolvedValueOnce(sample);
    const got = await refreshDiscover();
    expect(apiFetch).toHaveBeenCalledWith(
      '/api/playlists/system/discover/refresh',
      expect.objectContaining({ method: 'POST' })
    );
    expect(got).toEqual(sample);
  });

  it('handles empty-library response', async () => {
    const sample = { playlist_id: null, track_count: 0 };
    (apiFetch as unknown as ReturnType<typeof vi.fn>).mockResolvedValueOnce(sample);
    const got = await refreshDiscover();
    expect(got.playlist_id).toBe(null);
    expect(got.track_count).toBe(0);
  });
});