import { describe, expect, it } from 'vitest';
import { groupNotificationsByScope, type NotificationScope } from './notificationGrouping';

type Item = { id: string; scope: NotificationScope; is_read?: boolean };

describe('groupNotificationsByScope', () => {
  it('groups items and counts unread', () => {
    const items: Item[] = [
      { id: '1', scope: 'photos', is_read: false },
      { id: '2', scope: 'photos', is_read: true },
      { id: '3', scope: 'package', is_read: false },
    ];

    const grouped = groupNotificationsByScope(items);

    expect(grouped[0]?.scope).toBe('photos');
    expect(grouped[0]?.items).toHaveLength(2);
    expect(grouped[0]?.unread).toBe(1);
    expect(grouped[1]?.scope).toBe('package');
    expect(grouped[1]?.unread).toBe(1);
  });

  it('sorts groups by predefined scope order', () => {
    const items: Item[] = [
      { id: '1', scope: 'general', is_read: true },
      { id: '2', scope: 'events', is_read: true },
      { id: '3', scope: 'photos', is_read: true },
    ];

    const grouped = groupNotificationsByScope(items);
    expect(grouped.map((group) => group.scope)).toEqual(['photos', 'events', 'general']);
  });
});