import { beforeEach, describe, expect, it, vi } from 'vitest';

const { dbQueryMock } = vi.hoisted(() => ({
  dbQueryMock: vi.fn(),
}));

vi.mock('../lib/database.js', () => ({
  db: {
    query: dbQueryMock,
  },
}));

import { resolveLinkTemplateId } from './links.js';

describe('resolveLinkTemplateId', () => {
  beforeEach(() => {
    dbQueryMock.mockReset();
  });

  it('falls back to the default template when the provided id does not exist', async () => {
    dbQueryMock.mockResolvedValueOnce({ rows: [] });
    dbQueryMock.mockResolvedValueOnce({ rows: [{ id: '11111111-1111-1111-1111-111111111111' }] });

    await expect(resolveLinkTemplateId('00000000-0000-0000-0000-000000000000', null)).resolves.toBe('11111111-1111-1111-1111-111111111111');
    expect(dbQueryMock).toHaveBeenNthCalledWith(2, 'SELECT id FROM link_templates WHERE is_default = true LIMIT 1');
  });

  it('uses the template slug when it can be resolved', async () => {
    dbQueryMock.mockResolvedValueOnce({ rows: [{ id: '11111111-1111-1111-1111-111111111111' }] });

    await expect(resolveLinkTemplateId(null, 'default')).resolves.toBe('11111111-1111-1111-1111-111111111111');
    expect(dbQueryMock).toHaveBeenCalledWith('SELECT id FROM link_templates WHERE slug = $1 LIMIT 1', ['default']);
  });

  it('falls back to the default template when the provided template id is invalid', async () => {
    dbQueryMock.mockResolvedValueOnce({ rows: [{ id: '22222222-2222-2222-2222-222222222222' }] });

    await expect(resolveLinkTemplateId('not-a-uuid', null)).resolves.toBe('22222222-2222-2222-2222-222222222222');
    expect(dbQueryMock).toHaveBeenCalledWith('SELECT id FROM link_templates WHERE is_default = true LIMIT 1');
  });
});