import 'package:agora_rtc_engine/agora_rtc_engine.dart';
import 'package:dating_touchme_app/controller/global.dart';
import 'package:dating_touchme_app/model/rtc/rtc_channel_data.dart';
import 'package:dating_touchme_app/model/rtc/rtc_channel_detail.dart';
import 'package:dating_touchme_app/network/network_service.dart';
import 'package:dating_touchme_app/rtc/rtc_manager.dart';
import 'package:dating_touchme_app/service/live_chat_message_service.dart';
import 'package:flutter_smart_dialog/flutter_smart_dialog.dart';
import 'package:get/get.dart';
import 'package:permission_handler/permission_handler.dart';

import '../../model/live/live_chat_message.dart';

// 当前角色
enum CurrentRole {
  broadcaster, //主持
  maleAudience, //男嘉宾
  femaleAudience, //女嘉宾
  audience, //观众
  normalUser, //普通用户
}

/// 直播房间相关控制器
class RoomController extends GetxController {
  RoomController({NetworkService? networkService})
    : _networkService = networkService ?? Get.find<NetworkService>();

  final NetworkService _networkService;
  CurrentRole currentRole = CurrentRole.normalUser;
  bool isLive = false;

  /// 当前频道信息
  final Rxn<RtcChannelData> rtcChannel = Rxn<RtcChannelData>();
  final Rxn<RtcChannelDetail> rtcChannelDetail = Rxn<RtcChannelDetail>();

  /// 聊天消息列表
  final RxList<LiveChatMessage> chatMessages = <LiveChatMessage>[].obs;

  /// 消息服务实例
  final LiveChatMessageService _messageService =
      LiveChatMessageService.instance;

  @override
  void onInit() {
    super.onInit();
    // 注册消息监听
    _registerMessageListener();
  }

  @override
  void onClose() {
    super.onClose();
    // 移除消息监听
    _messageService.unregisterMessageListener();
  }

  /// 注册消息监听
  void _registerMessageListener() {
    _messageService.registerMessageListener(
      onMessageReceived: (message) {
        _addMessage(message);
      },
      onMessageError: (error) {
        print('❌ 消息处理错误: $error');
      },
    );
  }

  /// 添加消息到列表（带去重和数量限制）
  void _addMessage(LiveChatMessage message) {
    // 去重：检查是否已存在相同的消息（基于 userId + content + timestamp）
    final exists = chatMessages.any(
      (m) =>
          m.userId == message.userId &&
          m.content == message.content &&
          (m.timestamp - message.timestamp).abs() < 1000,
    ); // 1秒内的相同消息视为重复

    if (exists) {
      print('⚠️ 消息已存在，跳过添加');
      return;
    }

    chatMessages.add(message);
    print('✅ 消息已添加到列表，当前消息数: ${chatMessages.length}');

    // 限制消息数量，最多保留100条
    if (chatMessages.length > 300) {
      chatMessages.removeAt(0);
      print('📝 消息列表已满，移除最旧的消息');
    }
  }

  /// 调用接口创建 RTC 频道
  Future<void> createRtcChannel() async {
    final granted = await _ensureRtcPermissions();
    if (!granted) return;

    try {
      final response = await _networkService.rtcApi.createRtcChannel();
      final base = response.data;
      if (base.isSuccess && base.data != null) {
        rtcChannel.value = base.data;
        currentRole = CurrentRole.broadcaster;
        isLive = true;
        await _joinRtcChannel(
          base.data!.token,
          base.data!.channelId,
          base.data!.uid,
          ClientRoleType.clientRoleBroadcaster,
        );
      } else {
        final message = base.message.isNotEmpty ? base.message : '创建频道失败';
        SmartDialog.showToast(message);
      }
    } catch (e) {
      SmartDialog.showToast('创建频道异常：$e');
    }
  }

  Future<void> joinChannel(String channelName) async {
    try {
      final response = await _networkService.rtcApi.getSwRtcToken(channelName);
      final base = response.data;
      if (base.isSuccess && base.data != null) {
        rtcChannel.value = base.data;
        currentRole = CurrentRole.normalUser;
        await _joinRtcChannel(
          base.data!.token,
          channelName,
          base.data!.uid,
          ClientRoleType.clientRoleAudience,
        );
      }
    } catch (e) {
      SmartDialog.showToast('加入频道异常：$e');
    }
  }

  Future<void> _joinRtcChannel(
    String token,
    String channelName,
    int uid,
    ClientRoleType roleType,
  ) async {
    try {
      await _fetchRtcChannelDetail(channelName);
      await RTCManager.instance.joinChannel(
        token: token,
        channelId: channelName,
        uid: uid,
        role: roleType,
      );
    } catch (e) {
      SmartDialog.showToast('加入频道失败：$e');
    }
  }

  Future<void> joinChat(CurrentRole role) async {
    final data = {
      'channelId': RTCManager.instance.currentChannelId,
      'seatNumber': role == CurrentRole.maleAudience ? 1 : 2,
      'isMicrophoneOn': role != CurrentRole.normalUser ? true : false,
      'isVideoOn':
          role == CurrentRole.maleAudience || role == CurrentRole.femaleAudience
          ? true
          : false,
    };
    final response = await _networkService.rtcApi.connectRtcChannel(data);
    if (!response.data.isSuccess) {
      SmartDialog.showToast(response.data.message);
      return;
    }
    currentRole = role;
    if (role == CurrentRole.maleAudience ||
        role == CurrentRole.femaleAudience) {
      await RTCManager.instance.publishVideo(role);
    } else {
      await RTCManager.instance.publishAudio();
    }
    RtcSeatUserInfo userInfo = RtcSeatUserInfo(
      uid: rtcChannel.value?.uid,
        miId: GlobalData().userData?.id ?? '',
        userId: GlobalData().userData?.id ?? '',
        nickName: GlobalData().userData?.nickName ?? '',
        profilePhoto: GlobalData().userData?.profilePhoto ?? '',
        seatNumber: role == CurrentRole.maleAudience ? 1 : 2,
        isFriend: false,
        isMicrophoneOn: true,
        isVideoOn: role == CurrentRole.maleAudience || role == CurrentRole.femaleAudience ? true : false,
        genderCode: GlobalData().userData?.genderCode ?? 0,
    );
    final newDetail = RtcChannelDetail(
      channelId: rtcChannelDetail.value!.channelId,
      anchorInfo: rtcChannelDetail.value!.anchorInfo,
      maleInfo: role == CurrentRole.maleAudience ? userInfo : null,
      femaleInfo: role == CurrentRole.femaleAudience ? userInfo : null,
    );
    rtcChannelDetail.value = newDetail;
    isLive = true;
  }

  Future<void> leaveChat() async {
    final data = {'channelId': RTCManager.instance.currentChannelId};
    final response = await _networkService.rtcApi.disconnectRtcChannel(data);
    if (response.data.isSuccess) {
      isLive = false;
      await RTCManager.instance.unpublish(currentRole);
      if (currentRole == CurrentRole.maleAudience) {
        final newDetail = RtcChannelDetail(
          channelId: rtcChannelDetail.value!.channelId,
          anchorInfo: rtcChannelDetail.value!.anchorInfo,
          maleInfo: null,
          femaleInfo: rtcChannelDetail.value!.femaleInfo,
        );
        rtcChannelDetail.value = newDetail;
      } else if (currentRole == CurrentRole.femaleAudience) {
        final newDetail = RtcChannelDetail(
          channelId: rtcChannelDetail.value!.channelId,
          anchorInfo: rtcChannelDetail.value!.anchorInfo,
          maleInfo: rtcChannelDetail.value!.maleInfo,
          femaleInfo: null,
        );
        rtcChannelDetail.value = newDetail;
      }
      currentRole = CurrentRole.normalUser;
    }
  }

  Future<void> _fetchRtcChannelDetail(String channelName) async {
    try {
      final response = await _networkService.rtcApi.getRtcChannelDetail(
        channelName,
      );
      final base = response.data;
      if (base.isSuccess && base.data != null) {
        rtcChannelDetail.value = base.data;
      }
    } catch (e) {
      print('获取 RTC 频道详情失败：$e');
    }
  }

  /// 发送公屏消息
  Future<void> sendChatMessage(String content) async {
    final channelName = RTCManager.instance.currentChannelId;

    final result = await _messageService.sendMessage(
      content: content,
      channelName: channelName,
    );

    // 如果发送成功，立即添加到本地列表（优化体验，避免等待 RTM 回调）
    if (result.success && result.message != null) {
      _addMessage(result.message!);
    }
  }

  Future<bool> _ensureRtcPermissions() async {
    final statuses = await [Permission.camera, Permission.microphone].request();
    final allGranted = statuses.values.every((status) => status.isGranted);
    if (allGranted) {
      return true;
    }

    final permanentlyDenied = statuses.values.any(
      (status) => status.isPermanentlyDenied,
    );
    if (permanentlyDenied) {
      SmartDialog.showToast('请在系统设置中开启摄像头和麦克风权限');
      await openAppSettings();
    } else {
      SmartDialog.showToast('请允许摄像头和麦克风权限以进入房间');
    }
    return false;
  }

  Future<void> leaveChannel() async {
    isLive = false;
    if (currentRole == CurrentRole.maleAudience || currentRole == CurrentRole.femaleAudience) {
      await RTCManager.instance.unpublish(currentRole);
    }
    currentRole = CurrentRole.normalUser;;
    await RTCManager.instance.leaveChannel();
  }

  /// 接收RTC消息
  Future<void> receiveRTCMessage(Map<String, dynamic> message) async {
    if (message['type'] == 'join_chat') {
      final response = await _networkService.rtcApi.getDatingRtcChannelUserDetail(
        rtcChannel.value!.channelId,
        message['uid'],
      );
      if (!response.data.isSuccess) {
        return;
      }
      final currentDetail = rtcChannelDetail.value;
      if (currentDetail == null) {
        return;
      }
      if (message['role'] == 'male_audience') {
        final userData = response.data.data;
        // if (userData != null) {
          final maleInfo = RtcSeatUserInfo(
            miId: rtcChannelDetail.value!.anchorInfo!.miId,
            userId: rtcChannelDetail.value!.anchorInfo!.userId,
            nickName: rtcChannelDetail.value!.anchorInfo!.nickName,
            profilePhoto: rtcChannelDetail.value!.anchorInfo!.profilePhoto,
            genderCode: rtcChannelDetail.value!.anchorInfo!.genderCode,
            seatNumber: rtcChannelDetail.value!.anchorInfo!.seatNumber,
            isFriend: rtcChannelDetail.value!.anchorInfo!.isFriend,
            isMicrophoneOn: rtcChannelDetail.value!.anchorInfo!.isMicrophoneOn,
            isVideoOn: rtcChannelDetail.value!.anchorInfo!.isVideoOn,
            uid: message['uid'] is int
                ? message['uid'] as int
                : int.tryParse(message['uid']?.toString() ?? ''),
          );
          final newDetail = RtcChannelDetail(
            channelId: currentDetail.channelId,
            anchorInfo: currentDetail.anchorInfo,
            maleInfo: maleInfo,
            femaleInfo: currentDetail.femaleInfo,
          );
          rtcChannelDetail.value = newDetail;
        // }
      } else if (message['role'] == 'female_audience') {
        final userData = response.data.data;
        // if (userData != null) {
          final femaleInfo = RtcSeatUserInfo(
            miId: rtcChannelDetail.value!.anchorInfo!.miId,
            userId: rtcChannelDetail.value!.anchorInfo!.userId,
            nickName: rtcChannelDetail.value!.anchorInfo!.nickName,
            profilePhoto: rtcChannelDetail.value!.anchorInfo!.profilePhoto,
            genderCode: rtcChannelDetail.value!.anchorInfo!.genderCode,
            seatNumber: rtcChannelDetail.value!.anchorInfo!.seatNumber,
            isFriend: rtcChannelDetail.value!.anchorInfo!.isFriend,
            isMicrophoneOn: rtcChannelDetail.value!.anchorInfo!.isMicrophoneOn,
            isVideoOn: rtcChannelDetail.value!.anchorInfo!.isVideoOn,
            uid: message['uid'] is int
                ? message['uid'] as int
                : int.tryParse(message['uid']?.toString() ?? ''),
          );
          final newDetail = RtcChannelDetail(
            channelId: currentDetail.channelId,
            anchorInfo: currentDetail.anchorInfo,
            maleInfo: currentDetail.maleInfo,
            femaleInfo: femaleInfo,
          );
          rtcChannelDetail.value = newDetail;
        }
      // }
    }else if (message['type'] == 'leave_chat') {
      if (message['role'] == 'male_audience') {
        final newDetail = RtcChannelDetail(
          channelId: rtcChannelDetail.value!.channelId,
          anchorInfo: rtcChannelDetail.value!.anchorInfo,
          maleInfo: null,
          femaleInfo: rtcChannelDetail.value!.femaleInfo,
        );
        rtcChannelDetail.value = newDetail;
      } else if (message['role'] == 'female_audience') {
        final newDetail = RtcChannelDetail(
          channelId: rtcChannelDetail.value!.channelId,
          anchorInfo: rtcChannelDetail.value!.anchorInfo,
          maleInfo: rtcChannelDetail.value!.maleInfo,
          femaleInfo: null,
        );
        rtcChannelDetail.value = newDetail;
      }
    }
  }
}