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

describe('router beforeEach guard logic', () => {
  beforeEach(() => {
    // Clear cookies
    document.cookie.split(';').forEach((c) => {
      const name = c.split('=')[0].trim();
      if (name) {
        document.cookie = name + '=; Max-Age=-99999999; path=/';
      }
    });
  });

  // Simulate the guard logic from router/index.ts
  function runGuard(to) {
    const isLoggedIn = document.cookie
      .split(';')
      .some((c) => c.trim().startsWith('isLuciaLoggedIn='));

    if (to.name === 'Login') {
      if (isLoggedIn) return { name: 'Files' };
    }
    return undefined;
  }

  it('redirects logged-in user from Login to Files', () => {
    document.cookie = 'isLuciaLoggedIn=true';
    expect(runGuard({ name: 'Login' })).toEqual({ name: 'Files' });
  });

  it('allows unauthenticated user to visit Login', () => {
    expect(runGuard({ name: 'Login' })).toBeUndefined();
  });

  it('does not interfere with non-Login routes', () => {
    document.cookie = 'isLuciaLoggedIn=true';
    expect(runGuard({ name: 'Files' })).toBeUndefined();
  });
});