import { afterEach, describe, expect, it, vi } from 'vitest';
import { siteUrl } from '#web-runtime/lib/site-url';

afterEach(() => {
  vi.unstubAllEnvs();
  vi.restoreAllMocks();
});

describe('siteUrl', () => {
  it('uses SITE_URL, trimming stray whitespace', () => {
    vi.stubEnv('SITE_URL', '  https://crux.example.com  ');

    expect(siteUrl().origin).toBe('https://crux.example.com');
  });

  it('falls back to localhost for local development', () => {
    vi.stubEnv('SITE_URL', '');
    vi.stubEnv('NODE_ENV', 'development');

    expect(siteUrl().origin).toBe('http://localhost:3000');
  });

  it('complains loudly when a production build has none, since the symptom is silent', () => {
    const error = vi.spyOn(console, 'error').mockImplementation(() => {});
    vi.stubEnv('SITE_URL', '');
    vi.stubEnv('NODE_ENV', 'production');

    expect(siteUrl().origin).toBe('http://localhost:3000');
    expect(error).toHaveBeenCalledOnce();
  });

  it('throws on a malformed SITE_URL rather than building wrong canonicals', () => {
    vi.stubEnv('SITE_URL', 'crux.example.com');

    expect(() => siteUrl()).toThrow();
  });
});