import 'package:connectivity_plus/connectivity_plus.dart';
import 'package:flutter/services.dart';
import 'package:hgdj/config/config.dart';
import 'package:hgdj/hj_utils/codec_support.dart';
import 'package:hgdj/hj_utils/video_view_type.dart';
import 'package:hgdj/tools_base/global_store/store.dart';
import 'package:hgdj/tools_base/net/http_manager.dart';
import 'package:hgdj/tools_base/toast.dart';
import 'package:hgdj/track_event_manager/device_service.dart';

/// 播放失败诊断（**测试包专用**）。
///
/// 播放失败时把现场信息拼成文本复制到剪贴板，让用户直接粘贴发回来——
/// release 包里 debugLog/print 全不输出，这类"只有某台机器复现"的反馈没别的抓手。
///
/// 用法：失败分支调 [PlayDiagnose.report]，开关见 [Config.playDiagnose]。
class PlayDiagnose {
  PlayDiagnose._();

  /// 最近几条失败记录：用户常连点几个视频都失败，一次把全部给出来才看得出是否同因
  static final List<String> _records = [];
  static const _maxRecords = 5;

  /// 记录一次播放失败，并把累计记录复制到剪贴板。
  /// [scene] 场景（长视频/短视频/短剧）、[error] 原始异常、[url] 当次播放地址
  static Future<void> report({
    required String scene,
    required Object? error,
    String? url,
    String? videoId,
    String? videoTitle,
    bool? isH265,
    bool? forceH264,
  }) async {
    if (!Config.playDiagnose) return;

    final net = await _netDesc();
    final buffer = StringBuffer()
      ..writeln('【$scene】${DateTime.now()}')
      ..writeln('视频: ${videoTitle ?? '-'} (id=${videoId ?? '-'})')
      ..writeln('地址: ${url ?? '-'}')
      ..writeln(
          '本次选流: ${isH265 == true ? 'H265' : 'H264'}  已回退264=${forceH264 ?? false}')
      ..writeln('--- 编解码 ---')
      ..writeln(
          '芯片硬解265=${CodecSupport.hwSupport}  本机已禁265=${CodecSupport.deviceDisabled}  最终用265=${CodecSupport.useH265}')
      ..writeln(
          '渲染方式=${needPlatformView ? 'platformView' : 'textureView'}  已持久化=$platformViewPersisted')
      ..writeln('判定为解码错误=${isDecoderError(error)}')
      ..writeln('--- 环境 ---')
      ..writeln(
          '机型: ${DeviceInfoService.brand} ${DeviceInfoService.model}  系统: ${DeviceInfoService.deviceOS} ${DeviceInfoService.systemVersion}')
      ..writeln(
          '版本: ${Config.innerVersion}  用户: ${globalStore.meInfo?.uid ?? '-'}  设备: ${DeviceInfoService.deviceId}')
      ..writeln('网络: $net  线路: ${httpManager.baseUrl}')
      ..writeln('--- 错误原文 ---')
      ..writeln('$error');

    _records.add(buffer.toString());
    if (_records.length > _maxRecords) _records.removeAt(0);

    await Clipboard.setData(
        ClipboardData(text: _records.join('\n${'=' * 30}\n')));
    showToast('失败信息已复制(${_records.length}条)\n请粘贴发给客服');
  }

  static Future<String> _netDesc() async {
    try {
      final result = await Connectivity().checkConnectivity();
      return result.toString().replaceAll('ConnectivityResult.', '');
    } catch (e) {
      return 'unknown';
    }
  }
}