umbrix/lib/features/app_update/model/remote_version_entity.dart

import 'package:freezed_annotation/freezed_annotation.dart';
import 'package:umbrix/core/model/environment.dart';

part 'remote_version_entity.freezed.dart';

@Freezed()
class RemoteVersionEntity with _$RemoteVersionEntity {
  const RemoteVersionEntity._();

  const factory RemoteVersionEntity({
    required String version,
    required String buildNumber,
    required String releaseTag,
    required bool preRelease,
    required String url,
    required DateTime publishedAt,
    required Environment flavor,
    @Default([]) List<ReleaseAsset> assets,
  }) = _RemoteVersionEntity;

  String get presentVersion => flavor == Environment.prod ? version : "$version ${flavor.name}";

  /// Найти asset по расширению файла с умным определением
  String? findAssetByExtension(String extension) {
    try {
      // Для Linux используем приоритет: .deb > .rpm > .AppImage
      if (extension == '.deb' || extension == '.rpm' || extension == '.AppImage') {
        final priorities = ['.deb', '.rpm', '.AppImage'];

        for (final ext in priorities) {
          try {
            final asset = assets.firstWhere((asset) => asset.name.endsWith(ext));
            return asset.downloadUrl;
          } catch (_) {
            continue;
          }
        }
        return null;
      }

      // Для Windows - ищем .exe с приоритетом x64
      if (extension == '.exe') {
        // Сначала ищем x64 setup/installer
        for (final pattern in ['x64', 'amd64', 'win64', 'setup', 'installer']) {
          try {
            final asset = assets.firstWhere(
              (asset) => asset.name.toLowerCase().contains(pattern) && asset.name.endsWith('.exe'),
            );
            return asset.downloadUrl;
          } catch (_) {
            continue;
          }
        }
        
        // Если не нашли специфичный - берём любой .exe
        try {
          final asset = assets.firstWhere((asset) => asset.name.endsWith('.exe'));
          return asset.downloadUrl;
        } catch (_) {
          return null;
        }
      }

      // Для macOS - ищем .dmg
      if (extension == '.dmg') {
        // Сначала ищем universal или arm64 (для M1/M2)
        for (final pattern in ['universal', 'arm64', 'apple-silicon']) {
          try {
            final asset = assets.firstWhere(
              (asset) => asset.name.toLowerCase().contains(pattern) && asset.name.endsWith('.dmg'),
            );
            return asset.downloadUrl;
          } catch (_) {
            continue;
          }
        }
        
        // Если не нашли - берём любой .dmg
        try {
          final asset = assets.firstWhere((asset) => asset.name.endsWith('.dmg'));
          return asset.downloadUrl;
        } catch (_) {
          return null;
        }
      }

      // Для других расширений - прямой поиск
      return assets.firstWhere((asset) => asset.name.endsWith(extension)).downloadUrl;
    } catch (_) {
      return null;
    }
  }
}

@freezed
class ReleaseAsset with _$ReleaseAsset {
  const factory ReleaseAsset({
    required String name,
    required String downloadUrl,
    required int size,
  }) = _ReleaseAsset;
}