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

describe('mobile env (lazy proxy)', () => {
  beforeEach(() => {
    vi.resetModules();
    delete process.env.EXPO_PUBLIC_SUPABASE_URL;
    delete process.env.EXPO_PUBLIC_SUPABASE_ANON_KEY;
    delete process.env.EXPO_PUBLIC_AUTH_REDIRECT_URL;
  });

  it('importing the module does NOT throw when required vars are missing', async () => {
    await expect(import('./env')).resolves.toBeTruthy();
  });

  it('reading a property with no env set throws a clear error', async () => {
    const mod = await import('./env');
    expect(() => mod.env.supabaseUrl).toThrowError(
      /Missing required env var EXPO_PUBLIC_SUPABASE_URL/,
    );
  });

  it('reading a property after setting env returns the value and memoises', async () => {
    process.env.EXPO_PUBLIC_SUPABASE_URL = 'https://example.supabase.co';
    process.env.EXPO_PUBLIC_SUPABASE_ANON_KEY = 'anon-123';
    const mod = await import('./env');
    expect(mod.env.supabaseUrl).toBe('https://example.supabase.co');
    expect(mod.env.supabaseAnonKey).toBe('anon-123');
    expect(mod.env.authRedirectUrl).toBe('netralax://auth/callback');
  });
});