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

import {
  ClientAbortedError,
  InsufficientStorageError,
  PayloadTooLargeError,
  ValidationError,
} from '../src/errors.js';
import { normalizeStreamError } from '../src/lib/storage.js';

function withCode(code: string): Error {
  return Object.assign(new Error('boom'), { code });
}

describe('normalizeStreamError', () => {
  it('conserve les AppError telles quelles', () => {
    const error = new ValidationError('x');
    expect(normalizeStreamError(error)).toBe(error);
  });

  it('convertit le dépassement multipart en 413', () => {
    expect(normalizeStreamError(withCode('FST_REQ_FILE_TOO_LARGE'))).toBeInstanceOf(
      PayloadTooLargeError,
    );
  });

  it.each(['ECONNRESET', 'ECONNABORTED', 'ERR_STREAM_PREMATURE_CLOSE'])(
    'convertit %s (client parti) en ClientAbortedError',
    (code) => {
      expect(normalizeStreamError(withCode(code))).toBeInstanceOf(ClientAbortedError);
    },
  );

  it('convertit ENOSPC en InsufficientStorageError (507)', () => {
    const result = normalizeStreamError(withCode('ENOSPC'));
    expect(result).toBeInstanceOf(InsufficientStorageError);
    expect((result as InsufficientStorageError).statusCode).toBe(507);
  });

  it('laisse passer les autres erreurs et enveloppe les valeurs non-Error', () => {
    const other = withCode('EACCES');
    expect(normalizeStreamError(other)).toBe(other);
    expect(normalizeStreamError('texte')).toBeInstanceOf(Error);
  });
});