social-app/apps/lib/features/settings/data/settings_api.dart

import 'package:social_app/core/api/i_api_client.dart';

class AppVersionResponse {
  final bool hasUpdate;
  final String latestVersion;
  final int latestBuild;
  final String minRequiredVersion;
  final String updateType;
  final String? downloadUrl;
  final String? releaseNotes;

  AppVersionResponse({
    required this.hasUpdate,
    required this.latestVersion,
    required this.latestBuild,
    required this.minRequiredVersion,
    required this.updateType,
    this.downloadUrl,
    this.releaseNotes,
  });

  factory AppVersionResponse.fromJson(Map<String, dynamic> json) {
    return AppVersionResponse(
      hasUpdate: json['has_update'] as bool,
      latestVersion: json['latest_version'] as String,
      latestBuild: json['latest_build'] as int,
      minRequiredVersion: json['min_required_version'] as String,
      updateType: json['update_type'] as String,
      downloadUrl: json['download_url'] as String?,
      releaseNotes: json['release_notes'] as String?,
    );
  }
}

class SettingsApi {
  final IApiClient _client;
  static const _prefix = '/api/v1/app';

  SettingsApi(this._client);

  Future<AppVersionResponse> checkUpdates({
    required int currentBuild,
    String? currentVersion,
    String platform = 'android',
  }) async {
    final params = <String, String>{
      'platform': platform,
      'current_build': currentBuild.toString(),
    };
    if (currentVersion != null) {
      params['current_version'] = currentVersion;
    }
    final queryString = params.entries
        .map((e) => '${e.key}=${e.value}')
        .join('&');
    final response = await _client.get('$_prefix/check-updates?$queryString');
    return AppVersionResponse.fromJson(response.data);
  }
}