import 'dart:io' show Platform;

/// Backend base URL, without a trailing slash and without `/api/v1`.
///
/// Override at build/run time, e.g.:
///   flutter run --dart-define=API_BASE_URL=http://192.168.1.10:8000
///
/// Without an override we guess a sane per-platform default for local dev:
/// the Android emulator can't reach the host via `localhost` (it has its own
/// loopback), so it needs the special `10.0.2.2` alias instead.
class ApiConfig {
  static const _override = String.fromEnvironment('API_BASE_URL');

  static String get baseUrl {
    if (_override.isNotEmpty) return _override;
    if (!Platform.isAndroid) return 'http://localhost:8000';
    return 'http://10.0.2.2:8000';
  }

  static String get apiV1Url => '$baseUrl/api/v1';
}