import { describe, it, expect } from 'vitest';
import { validateAvatar, avatarReference } from '../server/avatar.mjs';
import { publicUser } from '../server/auth.mjs';
const png =
  'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVQIHWP4z8DwHwAFgAI/ScLbtAAAAABJRU5ErkJggg==';
describe('avatares personales', () => {
  it('acepta los avatares locales y permite volver a las iniciales', () => {
    expect(validateAvatar({ preset: 'oca' })).toEqual({ preset: 'oca' });
    expect(validateAvatar({ preset: null })).toBeNull();
    expect(() =>
      validateAvatar({ preset: 'https://unknown/avatar.svg' }),
    ).toThrow();
    expect(avatarReference({ avatar: { preset: 'gato' } })).toBe(
      '/avatars/gato.svg',
    );
  });
  it('guarda la imagen y devuelve solo su referencia pública, sin datos privados', () => {
    const avatar = validateAvatar({ image: png });
    const user = publicUser({
      id: 'test',
      nick: 'Test',
      password: 'private',
      email: 'secret',
      avatar,
    });
    expect(user?.avatar).toMatch(/^\/api\/avatars\/test\?v=[a-f0-9]{16}$/);
    expect(JSON.stringify(user)).not.toContain('base64');
    expect(user).not.toHaveProperty('password');
    expect(user).not.toHaveProperty('email');
  });
  it('rechaza SVG, contenido falso, imágenes excesivas y dimensiones grandes', () => {
    for (const image of [
      'data:image/svg+xml;base64,AAAA',
      'data:image/png;base64,AAAA',
      png + 'A'.repeat(90000),
    ])
      expect(() => validateAvatar({ image })).toThrow();
    const bytes = Buffer.from(png.slice(22), 'base64');
    bytes.writeUInt32BE(4096, 16);
    expect(() =>
      validateAvatar({
        image: 'data:image/png;base64,' + bytes.toString('base64'),
      }),
    ).toThrow('256');
  });
});