import 'dart:io';

import '../core/config/app_config.dart';
import '../core/network/api_client.dart';
import '../core/network/endpoints.dart';

/// 版本检查（《03-接口文档》10.1，《01-开发文档》5.7）
class VersionService {
  VersionService._();

  static Future<VersionInfo> check() async {
    final data = await ApiClient.get<Map<String, dynamic>>(
      Endpoints.appVersion,
      queryParameters: {
        'platform': Platform.isIOS ? 'ios' : 'android',
        'version_code': AppConfig.appVersionCode,
      },
    );
    return VersionInfo(
      latestVersion: (data['latest_version'] as String?) ?? '',
      latestVersionCode: (data['latest_version_code'] as num?)?.toInt() ?? 0,
      forceUpdate: (data['force_update'] as bool?) ?? false,
      updateUrl: (data['update_url'] as String?) ?? '',
      notice: (data['notice'] as String?) ?? '',
    );
  }
}

/// 版本检查结果
class VersionInfo {
  VersionInfo({
    required this.latestVersion,
    required this.latestVersionCode,
    required this.forceUpdate,
    required this.updateUrl,
    required this.notice,
  });

  final String latestVersion;
  final int latestVersionCode;
  final bool forceUpdate;
  final String updateUrl;

  /// 维护公告（非空时全 App 只读提示）
  final String notice;
}