import 'dart:io' show Platform;

import 'package:device_info_plus/device_info_plus.dart';
import 'package:device_marketing_names/device_marketing_names.dart';

import '../../core/utils/logger.dart';

/// 反馈系统上报到评论后台的设备信息。
class CommentDeviceInfo {
  final String? brand;
  final String? model;
  final String? osType;
  final String? osVersion;

  const CommentDeviceInfo({
    this.brand,
    this.model,
    this.osType,
    this.osVersion,
  });
}

/// 读取设备信息：`model` 优先取 `device_marketing_names` 的市售名，
/// 命中失败时退化为 "品牌 + 内部型号"，不影响功能。
Future<CommentDeviceInfo> readCommentDeviceInfo() async {
  try {
    final plugin = DeviceInfoPlugin();
    final marketingNames = DeviceMarketingNames();

    if (Platform.isIOS) {
      final info = await plugin.iosInfo;
      final code = info.utsname.machine;
      final marketing = await marketingNames.getSingleName();
      return CommentDeviceInfo(
        brand: 'Apple',
        model: marketing.isNotEmpty ? marketing : code,
        osType: 'ios',
        osVersion: info.systemVersion,
      );
    }

    if (Platform.isAndroid) {
      final info = await plugin.androidInfo;
      final brand = _capitalize(info.brand);
      final marketing = await marketingNames.getSingleName();
      final fallback = '$brand ${info.model}';
      return CommentDeviceInfo(
        brand: brand,
        model: marketing.isNotEmpty ? marketing : fallback,
        osType: 'android',
        osVersion: info.version.release,
      );
    }
  } catch (e) {
    Logger.error('读取设备信息失败: $e');
  }
  return const CommentDeviceInfo();
}

String _capitalize(String s) =>
    s.isEmpty ? s : s[0].toUpperCase() + s.substring(1).toLowerCase();