import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:provider/provider.dart';
import 'package:intl/intl.dart';
import 'package:share_plus/share_plus.dart';

import '../../models/event_model.dart';
import '../../models/participant_model.dart';
import '../../models/score_model.dart';
import '../../models/team_model.dart';
// import '../../services/auth_service.dart'; // 사용하지 않는 import 제거
import '../../services/event_service.dart';
import '../../services/notification_service.dart';
import '../../widgets/loading_indicator.dart';

class EventDetailsScreen extends StatefulWidget {
  final Event event;

  const EventDetailsScreen({
    Key? key,
    required this.event,
  }) : super(key: key);

  @override
  State<EventDetailsScreen> createState() => _EventDetailsScreenState();
}

class _EventDetailsScreenState extends State<EventDetailsScreen> with SingleTickerProviderStateMixin {
  late TabController _tabController;
  List<Participant> _participants = [];
  List<Score> _scores = [];
  List<Team> _teams = [];
  bool _isLoading = true;
  int _teamGenerationMethod = 1; // 1: 팀 인원수로 나누기, 2: 팀 개수로 나누기
  final TextEditingController _teamSizeController = TextEditingController(text: '4');
  final TextEditingController _teamCountController = TextEditingController(text: '2');
  bool _showTeamTab = false;

  @override
  void initState() {
    super.initState();
    _tabController = TabController(length: 4, vsync: this);
    _loadEventDetails();
  }

  @override
  void dispose() {
    _tabController.dispose();
    super.dispose();
  }

  Future<void> _loadEventDetails() async {
    setState(() {
      _isLoading = true;
    });

    try {
      final eventService = Provider.of<EventService>(context, listen: false);
      
      // 참가자 목록 로드
      final participants = await eventService.fetchEventParticipants(widget.event.id);
      
      // 점수 목록 로드
      final scores = await eventService.fetchEventScores(widget.event.id);
      
      // 팀 목록 로드 (선택적)
      List<Team> teams = [];
      try {
        teams = await eventService.fetchEventTeams(widget.event.id);
      } catch (e) {
        // 팀 기능이 없거나 오류 발생 시 무시
        print('팀 로드 실패: $e');
      }

      if (mounted) {
        setState(() {
          _participants = participants;
          _scores = scores;
          _teams = teams;
          _showTeamTab = teams.isNotEmpty || widget.event.type == '팀전';
          _isLoading = false;
        });
      }
    } catch (e) {
      if (mounted) {
        setState(() {
          _isLoading = false;
        });
        ScaffoldMessenger.of(context).showSnackBar(
          SnackBar(content: Text('이벤트 정보를 불러오는데 실패했습니다: $e')),
        );
      }
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.event.title),
        bottom: TabBar(
          controller: _tabController,
          tabs: [
            const Tab(text: '기본 정보'),
            const Tab(text: '참가자'),
            const Tab(text: '점수'),
            if (_showTeamTab) const Tab(text: '팀'),
          ],
        ),
      ),
      body: _isLoading
          ? const LoadingIndicator()
          : TabBarView(
              controller: _tabController,
              children: [
                _buildBasicInfoTab(),
                _buildParticipantsTab(),
                _buildScoresTab(),
                if (_showTeamTab) _buildTeamsTab(),
              ],
            ),
      floatingActionButton: _buildFloatingActionButton(),
    );
  }

  Widget _buildFloatingActionButton() {
    final currentTab = _tabController.index;
    
    switch (currentTab) {
      case 0: // 기본 정보 탭
        return FloatingActionButton(
          onPressed: _editEvent,
          child: const Icon(Icons.edit),
        );
      case 1: // 참가자 탭
        return FloatingActionButton(
          onPressed: _addParticipant,
          child: const Icon(Icons.person_add),
        );
      case 2: // 점수 탭
        return FloatingActionButton(
          onPressed: _addScore,
          child: const Icon(Icons.add_chart),
        );
      case 3: // 팀 탭 (표시되는 경우)
        if (_showTeamTab) {
          return FloatingActionButton(
            onPressed: _generateTeams,
            child: const Icon(Icons.group_add),
          );
        }
        return Container();
      default:
        return Container();
    }
  }

  // 기본 정보 탭
  Widget _buildBasicInfoTab() {
    return SingleChildScrollView(
      padding: const EdgeInsets.all(16),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          // 이벤트 유형 및 상태 뱃지
          Row(
            children: [
              Container(
                padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 6),
                decoration: BoxDecoration(
                  color: _getTypeColor(widget.event.type ?? '기타'),
                  borderRadius: BorderRadius.circular(16),
                ),
                child: Text(
                  widget.event.type ?? '기타',
                  style: const TextStyle(
                    color: Colors.white,
                    fontWeight: FontWeight.bold,
                  ),
                ),
              ),
              const SizedBox(width: 8),
              Container(
                padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 6),
                decoration: BoxDecoration(
                  color: _getStatusColor(widget.event.status ?? '준비중'),
                  borderRadius: BorderRadius.circular(16),
                ),
                child: Text(
                  widget.event.status ?? '준비중',
                  style: const TextStyle(
                    color: Colors.white,
                    fontWeight: FontWeight.bold,
                  ),
                ),
              ),
              const Spacer(),
              // 공유 버튼 추가
              IconButton(
                icon: const Icon(Icons.share),
                onPressed: _shareEvent,
                tooltip: '이벤트 공유',
              ),
            ],
          ),
          const SizedBox(height: 16),
          
          // 이벤트 설명
          if (widget.event.description != null && widget.event.description!.isNotEmpty) ...[  
            const Text(
              '설명',
              style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
            ),
            const SizedBox(height: 8),
            Container(
              width: double.infinity,
              padding: const EdgeInsets.all(12),
              decoration: BoxDecoration(
                color: Colors.grey[100],
                borderRadius: BorderRadius.circular(8),
              ),
              child: Text(widget.event.description ?? ''),
            ),
            const SizedBox(height: 16),
          ],
          
          // 이벤트 정보
          const Text(
            '이벤트 정보',
            style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
          ),
          const SizedBox(height: 8),
          _buildInfoRow(
            Icons.calendar_today,
            '시작: ${DateFormat('yyyy-MM-dd HH:mm').format(widget.event.startDate)}',
          ),
          if (widget.event.endDate != null)
            _buildInfoRow(
              Icons.calendar_today,
              '종료: ${DateFormat('yyyy-MM-dd HH:mm').format(widget.event.endDate!)}',
            ),
          if (widget.event.location != null && widget.event.location!.isNotEmpty)
            _buildInfoRow(Icons.location_on, '장소: ${widget.event.location}'),
          if (widget.event.maxParticipants != null)
            _buildInfoRow(
              Icons.people,
              '최대 참가자: ${widget.event.maxParticipants}명',
            ),
          if (widget.event.gameCount != null)
            _buildInfoRow(
              Icons.sports,
              '게임 수: ${widget.event.gameCount}게임',
            ),
          if (widget.event.participantFee != null)
            _buildInfoRow(
              Icons.attach_money,
              '참가비: ${NumberFormat.currency(locale: 'ko_KR', symbol: '₩', decimalDigits: 0).format(widget.event.participantFee)}',
            ),
          if (widget.event.registrationDeadline != null)
            _buildInfoRow(
              Icons.timer,
              '신청마감: ${DateFormat('yyyy-MM-dd HH:mm').format(widget.event.registrationDeadline!)}',
            ),
          const SizedBox(height: 16),
          
          // 공개 접근 정보
          const Text(
            '공개 접근',
            style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
          ),
          const SizedBox(height: 8),
          if (widget.event.publicHash != null && widget.event.publicHash!.isNotEmpty) ...[  
            Row(
              children: [
                Expanded(
                  child: _buildInfoRow(
                    Icons.link,
                    'https://bowling.example.com/events/${widget.event.publicHash}',
                    isSelectable: true,
                  ),
                ),
                IconButton(
                  icon: const Icon(Icons.copy),
                  onPressed: () {
                    final publicUrl = 'https://bowling.example.com/events/${widget.event.publicHash}';
                    Clipboard.setData(ClipboardData(text: publicUrl));
                    ScaffoldMessenger.of(context).showSnackBar(
                      const SnackBar(content: Text('공개 URL이 클립보드에 복사되었습니다')),
                    );
                  },
                  tooltip: 'URL 복사',
                ),
              ],
            ),
          ],
          if (widget.event.accessPassword != null && widget.event.accessPassword!.isNotEmpty)
            _buildInfoRow(
              Icons.lock,
              '접근 비밀번호: ${widget.event.accessPassword}',
            ),
          
          // 참가자 정보
          const SizedBox(height: 16),
          const Text(
            '참가자 정보',
            style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
          ),
          const SizedBox(height: 8),
          _buildInfoRow(
            Icons.people,
            '현재 참가자: ${_participants.length}명',
          ),
        ],
      ),
    );
  }

  // 참가자 탭
  Widget _buildParticipantsTab() {
    if (_participants.isEmpty) {
      return const Center(
        child: Text('참가자가 없습니다.'),
      );
    }
    
    return ListView.builder(
      itemCount: _participants.length,
      itemBuilder: (context, index) {
        final participant = _participants[index];
        return Card(
          margin: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
          child: ListTile(
            leading: CircleAvatar(
              backgroundColor: Colors.blue.shade100,
              child: Text(
                participant.name?.substring(0, 1) ?? '?',
                style: const TextStyle(color: Colors.blue),
              ),
            ),
            title: Text(
              participant.name ?? '이름 없음',
              style: const TextStyle(fontWeight: FontWeight.bold),
            ),
            subtitle: Row(
              children: [
                // 참가 상태 뱃지
                if (participant.status != null)
                  Container(
                    margin: const EdgeInsets.only(right: 8),
                    padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 2),
                    decoration: BoxDecoration(
                      color: _getParticipantStatusColor(participant.status!).withOpacity(0.2),
                      borderRadius: BorderRadius.circular(12),
                      border: Border.all(color: _getParticipantStatusColor(participant.status!)),
                    ),
                    child: Text(
                      participant.status!,
                      style: TextStyle(
                        fontSize: 12,
                        color: _getParticipantStatusColor(participant.status!),
                      ),
                    ),
                  ),
                // 결제 상태 뱃지
                Container(
                  padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 2),
                  decoration: BoxDecoration(
                    color: participant.isPaid ? Colors.green.withOpacity(0.2) : Colors.red.withOpacity(0.2),
                    borderRadius: BorderRadius.circular(12),
                    border: Border.all(color: participant.isPaid ? Colors.green : Colors.red),
                  ),
                  child: Text(
                    participant.isPaid ? '결제완료' : '미결제',
                    style: TextStyle(
                      fontSize: 12,
                      color: participant.isPaid ? Colors.green : Colors.red,
                    ),
                  ),
                ),
              ],
            ),
            trailing: Row(
              mainAxisSize: MainAxisSize.min,
              children: [
                IconButton(
                  icon: const Icon(Icons.edit, size: 20),
                  tooltip: '참가자 정보 수정',
                  onPressed: () => _editParticipant(participant),
                ),
                IconButton(
                  icon: const Icon(Icons.delete, size: 20),
                  tooltip: '참가자 삭제',
                  onPressed: () => _removeParticipant(participant),
                ),
              ],
            ),
            onTap: () => _showParticipantDetails(participant),
          ),
        );
      },
    );
  }

  // 점수 탭
  Widget _buildScoresTab() {
    if (_scores.isEmpty) {
      return const Center(
        child: Text('등록된 점수가 없습니다.'),
      );
    }
    
    // 점수를 내림차순으로 정렬하여 순위 계산
    final sortedScores = List<Score>.from(_scores);
    sortedScores.sort((a, b) => b.totalScore.compareTo(a.totalScore));
    
    // 평균 점수 계산
    final totalScoreSum = sortedScores.fold<int>(0, (sum, score) => sum + score.totalScore);
    final averageScore = sortedScores.isNotEmpty ? totalScoreSum / sortedScores.length : 0;
    
    return Column(
      children: [
        // 평균 점수 표시
        Container(
          padding: const EdgeInsets.all(8),
          margin: const EdgeInsets.all(8),
          decoration: BoxDecoration(
            color: Colors.blue.shade50,
            borderRadius: BorderRadius.circular(8),
            border: Border.all(color: Colors.blue.shade200),
          ),
          child: Row(
            mainAxisAlignment: MainAxisAlignment.center,
            children: [
              const Icon(Icons.score, color: Colors.blue),
              const SizedBox(width: 8),
              Text(
                '평균 점수: ${averageScore.toStringAsFixed(1)}',
                style: const TextStyle(fontWeight: FontWeight.bold),
              ),
            ],
          ),
        ),
        
        // 점수 목록
        Expanded(
          child: ListView.builder(
            itemCount: sortedScores.length,
            itemBuilder: (context, index) {
              final score = sortedScores[index];
              final rank = index + 1; // 순위
              
              // 참가자 이름 찾기
              final participant = _participants.firstWhere(
                (p) => p.memberId == score.memberId,
                orElse: () => Participant(
                  id: '',
                  eventId: '',
                  memberId: score.memberId,
                  name: '알 수 없음',
                ),
              );
              
              return Card(
                margin: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
                child: ListTile(
                  leading: CircleAvatar(
                    backgroundColor: _getRankColor(rank),
                    child: Text(
                      rank.toString(),
                      style: const TextStyle(color: Colors.white, fontWeight: FontWeight.bold),
                    ),
                  ),
                  title: Row(
                    children: [
                      Expanded(
                        child: Text(
                          participant.name ?? '알 수 없음',
                          style: const TextStyle(fontWeight: FontWeight.bold),
                        ),
                      ),
                      Container(
                        padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 2),
                        decoration: BoxDecoration(
                          color: Colors.blue.shade100,
                          borderRadius: BorderRadius.circular(12),
                        ),
                        child: Text(
                          '총점: ${score.totalScore}',
                          style: const TextStyle(fontWeight: FontWeight.bold),
                        ),
                      ),
                    ],
                  ),
                  subtitle: Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      const SizedBox(height: 4),
                      Text(
                        '날짜: ${DateFormat('yyyy-MM-dd').format(score.date)}',
                      ),
                      const SizedBox(height: 4),
                      SingleChildScrollView(
                        scrollDirection: Axis.horizontal,
                        child: Row(
                          children: score.frames.asMap().entries.map((entry) {
                            return Container(
                              width: 30,
                              height: 30,
                              margin: const EdgeInsets.only(right: 4),
                              decoration: BoxDecoration(
                                color: _getScoreColor(entry.value),
                                borderRadius: BorderRadius.circular(4),
                              ),
                              child: Center(
                                child: Text(
                                  entry.value.toString(),
                                  style: const TextStyle(
                                    color: Colors.white,
                                    fontWeight: FontWeight.bold,
                                  ),
                                ),
                              ),
                            );
                          }).toList(),
                        ),
                      ),
                    ],
                  ),
                  trailing: Row(
                    mainAxisSize: MainAxisSize.min,
                    children: [
                      IconButton(
                        icon: const Icon(Icons.edit, size: 20),
                        tooltip: '점수 수정',
                        onPressed: () => _editScore(score),
                      ),
                      IconButton(
                        icon: const Icon(Icons.delete, size: 20),
                        tooltip: '점수 삭제',
                        onPressed: () => _deleteScore(score),
                      ),
                    ],
                  ),
                  onTap: () => _showScoreDetails(score),
                ),
              );
            },
          ),
        ),
      ],
    );
  }

  // 팀 탭
  Widget _buildTeamsTab() {
    if (_teams.isEmpty) {
      return Center(
        child: Padding(
          padding: const EdgeInsets.all(16.0),
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: [
              const Icon(Icons.groups, size: 64, color: Colors.blue),
              const SizedBox(height: 16),
              const Text('생성된 팀이 없습니다.', style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold)),
              const SizedBox(height: 24),
              // 팀 생성 옵션
              Card(
                child: Padding(
                  padding: const EdgeInsets.all(16.0),
                  child: Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      const Text('팀 생성 옵션', style: TextStyle(fontSize: 16, fontWeight: FontWeight.bold)),
                      const SizedBox(height: 16),
                      // 팀 생성 방법 선택
                      Row(
                        children: [
                          Radio<int>(
                            value: 1,
                            groupValue: _teamGenerationMethod,
                            onChanged: (value) {
                              setState(() {
                                _teamGenerationMethod = value!;
                              });
                            },
                          ),
                          const Text('팀 인원수로 나누기'),
                        ],
                      ),
                      if (_teamGenerationMethod == 1)
                        Padding(
                          padding: const EdgeInsets.only(left: 32.0),
                          child: Row(
                            children: [
                              SizedBox(
                                width: 80,
                                child: TextFormField(
                                  controller: _teamSizeController,
                                  decoration: const InputDecoration(
                                    labelText: '인원수',
                                    suffixText: '명',
                                  ),
                                  keyboardType: TextInputType.number,
                                  inputFormatters: [FilteringTextInputFormatter.digitsOnly],
                                ),
                              ),
                              const SizedBox(width: 16),
                              Text('총 ${_participants.length}명 참가자'),
                            ],
                          ),
                        ),
                      const SizedBox(height: 8),
                      Row(
                        children: [
                          Radio<int>(
                            value: 2,
                            groupValue: _teamGenerationMethod,
                            onChanged: (value) {
                              setState(() {
                                _teamGenerationMethod = value!;
                              });
                            },
                          ),
                          const Text('팀 개수로 나누기'),
                        ],
                      ),
                      if (_teamGenerationMethod == 2)
                        Padding(
                          padding: const EdgeInsets.only(left: 32.0),
                          child: Row(
                            children: [
                              SizedBox(
                                width: 80,
                                child: TextFormField(
                                  controller: _teamCountController,
                                  decoration: const InputDecoration(
                                    labelText: '팀 수',
                                    suffixText: '개',
                                  ),
                                  keyboardType: TextInputType.number,
                                  inputFormatters: [FilteringTextInputFormatter.digitsOnly],
                                ),
                              ),
                              const SizedBox(width: 16),
                              Text('총 ${_participants.length}명 참가자'),
                            ],
                          ),
                        ),
                      const SizedBox(height: 16),
                      // 팀 생성 버튼
                      Row(
                        mainAxisAlignment: MainAxisAlignment.center,
                        children: [
                          ElevatedButton.icon(
                            onPressed: _generateTeams,
                            icon: const Icon(Icons.group_add),
                            label: const Text('팀 생성하기'),
                            style: ElevatedButton.styleFrom(
                              backgroundColor: Colors.blue,
                              foregroundColor: Colors.white,
                              padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 12),
                            ),
                          ),
                        ],
                      ),
                    ],
                  ),
                ),
              ),
            ],
          ),
        ),
      );
    }
    
    // 미배정 참가자 목록 조회
    final List<Participant> unassignedParticipants = _getUnassignedParticipants();
    
    return Column(
      children: [
        // 팀 관리 버튼
        Padding(
          padding: const EdgeInsets.all(8.0),
          child: Row(
            mainAxisAlignment: MainAxisAlignment.spaceEvenly,
            children: [
              ElevatedButton.icon(
                onPressed: _generateTeams,
                icon: const Icon(Icons.refresh),
                label: const Text('팀 재생성'),
                style: ElevatedButton.styleFrom(
                  backgroundColor: Colors.blue,
                  foregroundColor: Colors.white,
                ),
              ),
              ElevatedButton.icon(
                onPressed: _saveTeams,
                icon: const Icon(Icons.save),
                label: const Text('팀 저장'),
                style: ElevatedButton.styleFrom(
                  backgroundColor: Colors.green,
                  foregroundColor: Colors.white,
                ),
              ),
            ],
          ),
        ),
        
        // 이벤트 설명
        if (widget.event.description != null && widget.event.description!.isNotEmpty)
          Padding(
            padding: const EdgeInsets.symmetric(vertical: 16.0),
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                const Text(
                  '이벤트 설명',
                  style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
                ),
                const SizedBox(height: 8),
                Text(widget.event.description!),
              ],
            ),
          ),

        // 버튼 그룹 (공유 및 알림)
        Padding(
          padding: const EdgeInsets.symmetric(vertical: 16.0),
          child: Row(
            mainAxisAlignment: MainAxisAlignment.spaceEvenly,
            children: [
              // 공유 버튼
              Expanded(
                child: ElevatedButton.icon(
                  onPressed: _shareEvent,
                  icon: const Icon(Icons.share),
                  label: const Text('이벤트 공유'),
                  style: ElevatedButton.styleFrom(
                    foregroundColor: Colors.white,
                    backgroundColor: Colors.blue,
                  ),
                ),
              ),
              const SizedBox(width: 8),
              // 알림 설정 버튼
              Expanded(
                child: ElevatedButton.icon(
                  onPressed: _setEventReminders,
                  icon: const Icon(Icons.notifications_active),
                  label: const Text('알림 설정'),
                  style: ElevatedButton.styleFrom(
                    foregroundColor: Colors.white,
                    backgroundColor: Colors.green,
                  ),
                ),
              ),
            ],
          ),
        ),
        
        // 미배정 참가자 섹션
        if (unassignedParticipants.isNotEmpty)
          Card(
            margin: const EdgeInsets.all(8),
            color: Colors.amber.shade50,
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                Padding(
                  padding: const EdgeInsets.all(8.0),
                  child: Row(
                    children: [
                      const Icon(Icons.person_off, color: Colors.amber),
                      const SizedBox(width: 8),
                      Text('미배정 참가자 (${unassignedParticipants.length}명)', 
                        style: const TextStyle(fontWeight: FontWeight.bold),
                      ),
                    ],
                  ),
                ),
                const Divider(height: 1),
                Wrap(
                  children: unassignedParticipants.map((participant) {
                    return Padding(
                      padding: const EdgeInsets.all(4.0),
                      child: Chip(
                        avatar: const CircleAvatar(
                          child: Icon(Icons.person, size: 16),
                        ),
                        label: Text(participant.name ?? '알 수 없음'),
                        deleteIcon: const Icon(Icons.add_circle, size: 18),
                        onDeleted: () => _showTeamSelectionDialog(participant),
                      ),
                    );
                  }).toList(),
                ),
              ],
            ),
          ),
        
        // 팀 목록
        Expanded(
          child: ListView.builder(
            itemCount: _teams.length,
            itemBuilder: (context, index) {
              final team = _teams[index];
              final teamMembers = _getTeamMembers(team);
              final teamAverage = _calculateTeamAverage(team);
              
              return Card(
                margin: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
                child: ExpansionTile(
                  leading: CircleAvatar(
                    backgroundColor: Colors.blue.shade700,
                    child: Text('${index + 1}', style: const TextStyle(color: Colors.white)),
                  ),
                  title: Row(
                    children: [
                      Text('팀 ${team.name}', style: const TextStyle(fontWeight: FontWeight.bold)),
                      const SizedBox(width: 8),
                      Container(
                        padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 2),
                        decoration: BoxDecoration(
                          color: Colors.blue.shade100,
                          borderRadius: BorderRadius.circular(12),
                        ),
                        child: Text('${team.memberIds.length}명'),
                      ),
                    ],
                  ),
                  subtitle: Row(
                    children: [
                      const Icon(Icons.bar_chart, size: 16, color: Colors.blue),
                      const SizedBox(width: 4),
                      Text('팀 에버리지: ${teamAverage.toStringAsFixed(1)}'),
                    ],
                  ),
                  children: [
                    ...teamMembers.map((participant) {
                      // 참가자의 평균 점수 계산
                      final participantScores = _scores.where((s) => s.memberId == participant.memberId).toList();
                      final participantAverage = participantScores.isNotEmpty
                          ? participantScores.fold<int>(0, (sum, s) => sum + s.totalScore) / participantScores.length
                          : 0.0;
                      
                      return ListTile(
                        leading: const CircleAvatar(
                          child: Icon(Icons.person, size: 16),
                        ),
                        title: Text(participant.name ?? '알 수 없음'),
                        subtitle: Text('평균: ${participantAverage.toStringAsFixed(1)}'),
                        trailing: IconButton(
                          icon: const Icon(Icons.remove_circle, color: Colors.red),
                          tooltip: '팀에서 제외',
                          onPressed: () => _removeFromTeam(team, participant),
                        ),
                      );
                    }).toList(),
                    // 팀원 추가 버튼
                    if (unassignedParticipants.isNotEmpty)
                      ListTile(
                        leading: const Icon(Icons.add_circle, color: Colors.green),
                        title: const Text('팀원 추가하기'),
                        onTap: () => _showParticipantSelectionDialog(team),
                      ),
                  ],
                ),
              );
            },
          ),
        ),
      ],
    );
  }

  // 정보 행 위젯
  Widget _buildInfoRow(IconData icon, String text, {bool isSelectable = false}) {
    return Padding(
      padding: const EdgeInsets.symmetric(vertical: 8.0),
      child: Row(
        children: [
          Icon(icon, color: Colors.blue),
          const SizedBox(width: 8),
          isSelectable
              ? Expanded(
                  child: SelectableText(
                    text,
                    style: const TextStyle(fontSize: 16),
                  ),
                )
              : Expanded(
                  child: Text(
                    text,
                    style: const TextStyle(fontSize: 16),
                  ),
                ),
        ],
      ),
    );
  }

  // 이벤트 유형에 따른 색상 반환
  Color _getTypeColor(String type) {
    switch (type.toLowerCase()) {
      case '개인전':
      case 'individual':
        return Colors.blue;
      case '팀전':
      case 'team':
        return Colors.purple;
      case '리그':
      case 'league':
        return Colors.green;
      case '토너먼트':
      case 'tournament':
        return Colors.orange;
      default:
        return Colors.grey;
    }
  }

  // 이벤트 상태에 따른 색상 반환
  Color _getStatusColor(String status) {
    switch (status.toLowerCase()) {
      case '활성':
      case 'active':
        return Colors.green;
      case '대기':
      case 'pending':
        return Colors.orange;
      case '취소':
      case 'cancelled':
        return Colors.red;
      case '완료':
      case 'completed':
        return Colors.blue;
      default:
        return Colors.grey;
    }
  }
  
  // 참가자 상태에 따른 색상 반환
  Color _getParticipantStatusColor(String status) {
    switch (status.toLowerCase()) {
      case 'registered':
      case '등록됨':
        return Colors.blue;
      case 'confirmed':
      case '확인됨':
        return Colors.green;
      case 'cancelled':
      case '취소됨':
        return Colors.red;
      case 'attended':
      case '참석함':
        return Colors.purple;
      default:
        return Colors.grey;
    }
  }
  
  // 순위에 따른 색상 반환
  Color _getRankColor(int rank) {
    switch (rank) {
      case 1:
        return Colors.amber.shade700; // 금메달
      case 2:
        return Colors.blueGrey.shade400; // 은메달
      case 3:
        return Colors.brown.shade400; // 동메달
      default:
        return Colors.blue.shade700; // 기본 색상
    }
  }
  
  // 점수에 따른 색상 반환
  Color _getScoreColor(int score) {
    if (score >= 9) {
      return Colors.red.shade700; // 스트라이크
    } else if (score >= 7) {
      return Colors.orange.shade700; // 좋은 점수
    } else if (score >= 5) {
      return Colors.green.shade700; // 평균 점수
    } else {
      return Colors.blue.shade700; // 낮은 점수
    }
  }
  
  // 미배정 참가자 목록 가져오기
  List<Participant> _getUnassignedParticipants() {
    // 현재 팀에 배정된 모든 참가자 ID 목록
    final List<String> assignedMemberIds = [];
    for (final team in _teams) {
      assignedMemberIds.addAll(team.memberIds);
    }
    
    // 배정되지 않은 참가자 목록 반환
    return _participants.where((p) => !assignedMemberIds.contains(p.memberId)).toList();
  }
  
  // 팀원 목록 가져오기
  List<Participant> _getTeamMembers(Team team) {
    return _participants
        .where((p) => team.memberIds.contains(p.memberId))
        .toList();
  }
  
  // 팀 평균 점수 계산
  double _calculateTeamAverage(Team team) {
    if (team.memberIds.isEmpty) return 0.0;
    
    double totalAverage = 0.0;
    int memberCount = 0;
    
    for (final memberId in team.memberIds) {
      final memberScores = _scores.where((s) => s.memberId == memberId).toList();
      if (memberScores.isNotEmpty) {
        final memberTotal = memberScores.fold<int>(0, (sum, score) => sum + score.totalScore);
        totalAverage += memberTotal / memberScores.length;
        memberCount++;
      }
    }
    
    return memberCount > 0 ? totalAverage / memberCount : 0.0;
  }
  
  // 팀 생성 방법
  void _generateTeams() {
    if (_participants.isEmpty) {
      ScaffoldMessenger.of(context).showSnackBar(
        const SnackBar(content: Text('참가자가 없습니다.')),
      );
      return;
    }
    
    // 기존 팀 삭제
    setState(() {
      _teams.clear();
    });
    
    // 참가자 셔플
    final shuffledParticipants = List<Participant>.from(_participants);
    shuffledParticipants.shuffle();
    
    int teamCount;
    int teamSize;
    
    // 팀 생성 방법에 따른 팀 개수 계산
    if (_teamGenerationMethod == 1) {
      // 팀 인원수로 나누기
      teamSize = int.tryParse(_teamSizeController.text) ?? 4;
      if (teamSize <= 0) teamSize = 4;
      teamCount = (_participants.length / teamSize).ceil();
    } else {
      // 팀 개수로 나누기
      teamCount = int.tryParse(_teamCountController.text) ?? 2;
      if (teamCount <= 0) teamCount = 2;
      teamSize = (_participants.length / teamCount).ceil();
    }
    
    // 팀 생성
    final List<Team> newTeams = [];
    for (int i = 0; i < teamCount; i++) {
      final teamName = String.fromCharCode(65 + i); // A, B, C, ...
      final team = Team(
        id: 'temp_${DateTime.now().millisecondsSinceEpoch}_$i',
        eventId: widget.event.id,
        name: teamName,
        memberIds: [],
      );
      newTeams.add(team);
    }
    
    // 참가자 배정
    for (int i = 0; i < shuffledParticipants.length; i++) {
      final teamIndex = i % teamCount;
      final memberId = shuffledParticipants[i].memberId;
      if (memberId != null) {
        newTeams[teamIndex].memberIds.add(memberId);
      }
    }
    
    setState(() {
      _teams = newTeams;
    });
    
    ScaffoldMessenger.of(context).showSnackBar(
      SnackBar(content: Text('팀이 생성되었습니다. ($teamCount개 팀)')),
    );
  }
  
  // 팀 저장
  void _saveTeams() async {
    if (_teams.isEmpty) {
      ScaffoldMessenger.of(context).showSnackBar(
        const SnackBar(content: Text('저장할 팀이 없습니다.')),
      );
      return;
    }
    
    setState(() {
      _isLoading = true;
    });
    
    try {
      // 기존 팀 삭제 및 새 팀 저장 로직 구현
      // TODO: API 연동 구현
      
      ScaffoldMessenger.of(context).showSnackBar(
        const SnackBar(content: Text('팀이 저장되었습니다.')),
      );
    } catch (e) {
      ScaffoldMessenger.of(context).showSnackBar(
        SnackBar(content: Text('팀 저장 중 오류가 발생했습니다: $e')),
      );
    } finally {
      setState(() {
        _isLoading = false;
      });
    }
  }
  
  // 팀에서 참가자 제거
  void _removeFromTeam(Team team, Participant participant) {
    setState(() {
      team.memberIds.remove(participant.memberId);
    });
    
    ScaffoldMessenger.of(context).showSnackBar(
      SnackBar(content: Text('${participant.name}님이 팀에서 제외되었습니다.')),
    );
  }
  
  // 참가자 선택 다이얼로그 표시
  void _showParticipantSelectionDialog(Team team) {
    final unassignedParticipants = _getUnassignedParticipants();
    if (unassignedParticipants.isEmpty) {
      ScaffoldMessenger.of(context).showSnackBar(
        const SnackBar(content: Text('추가할 참가자가 없습니다.')),
      );
      return;
    }
    
    showDialog(
      context: context,
      builder: (context) => AlertDialog(
        title: Text('팀 ${team.name}에 참가자 추가'),
        content: SizedBox(
          width: double.maxFinite,
          child: ListView.builder(
            shrinkWrap: true,
            itemCount: unassignedParticipants.length,
            itemBuilder: (context, index) {
              final participant = unassignedParticipants[index];
              return ListTile(
                leading: const CircleAvatar(
                  child: Icon(Icons.person, size: 16),
                ),
                title: Text(participant.name ?? '알 수 없음'),
                onTap: () {
                  Navigator.of(context).pop();
                  setState(() {
                    team.memberIds.add(participant.memberId!);
                  });
                  ScaffoldMessenger.of(context).showSnackBar(
                    SnackBar(content: Text('${participant.name}님이 팀 ${team.name}에 추가되었습니다.')),
                  );
                },
              );
            },
          ),
        ),
        actions: [
          TextButton(
            onPressed: () => Navigator.of(context).pop(),
            child: const Text('취소'),
          ),
        ],
      ),
    );
  }
  
  // 참가자를 추가할 팀 선택 다이얼로그 표시
  void _showTeamSelectionDialog(Participant participant) {
    if (_teams.isEmpty) {
      ScaffoldMessenger.of(context).showSnackBar(
        const SnackBar(content: Text('추가할 팀이 없습니다.')),
      );
      return;
    }
    
    showDialog(
      context: context,
      builder: (context) => AlertDialog(
        title: Text('${participant.name}님을 추가할 팀 선택'),
        content: SizedBox(
          width: double.maxFinite,
          child: ListView.builder(
            shrinkWrap: true,
            itemCount: _teams.length,
            itemBuilder: (context, index) {
              final team = _teams[index];
              return ListTile(
                leading: CircleAvatar(
                  backgroundColor: Colors.blue.shade700,
                  child: Text('${index + 1}', style: const TextStyle(color: Colors.white)),
                ),
                title: Text('팀 ${team.name} (${team.memberIds.length}명)'),
                onTap: () {
                  Navigator.of(context).pop();
                  setState(() {
                    team.memberIds.add(participant.memberId!);
                  });
                  ScaffoldMessenger.of(context).showSnackBar(
                    SnackBar(content: Text('${participant.name}님이 팀 ${team.name}에 추가되었습니다.')),
                  );
                },
              );
            },
          ),
        ),
        actions: [
          TextButton(
            onPressed: () => Navigator.of(context).pop(),
            child: const Text('취소'),
          ),
        ],
      ),
    );
  }

  // 이벤트 수정
  void _editEvent() {
    // 이벤트 수정 다이얼로그 또는 화면으로 이동
    Navigator.of(context).pop(true); // 수정을 위해 이전 화면으로 돌아가기
  }

  // 참가자 추가
  void _addParticipant() {
    // 참가자 추가 다이얼로그 표시
    showDialog(
      context: context,
      builder: (context) => AlertDialog(
        title: const Text('참가자 추가'),
        content: const Text('참가자 추가 기능은 아직 구현 중입니다.'),
        actions: [
          TextButton(
            onPressed: () => Navigator.of(context).pop(),
            child: const Text('확인'),
          ),
        ],
      ),
    );
  }

  // 참가자 수정
  void _editParticipant(Participant participant) {
    // 참가자 수정 다이얼로그 표시
    showDialog(
      context: context,
      builder: (context) => AlertDialog(
        title: const Text('참가자 수정'),
        content: Text('${participant.name} 참가자 수정 기능은 아직 구현 중입니다.'),
        actions: [
          TextButton(
            onPressed: () => Navigator.of(context).pop(),
            child: const Text('확인'),
          ),
        ],
      ),
    );
  }

  // 참가자 삭제
  void _removeParticipant(Participant participant) {
    // 참가자 삭제 확인 다이얼로그
    showDialog(
      context: context,
      builder: (context) => AlertDialog(
        title: const Text('참가자 삭제'),
        content: Text('${participant.name} 참가자를 정말 삭제하시겠습니까?'),
        actions: [
          TextButton(
            onPressed: () => Navigator.of(context).pop(),
            child: const Text('취소'),
          ),
          TextButton(
            onPressed: () async {
              Navigator.of(context).pop();
              
              setState(() {
                _isLoading = true;
              });
              
              try {
                final eventService = Provider.of<EventService>(context, listen: false);
                await eventService.removeParticipant(widget.event.id, participant.id);
                
                if (mounted) {
                  setState(() {
                    _participants.removeWhere((p) => p.id == participant.id);
                    _isLoading = false;
                  });
                  
                  ScaffoldMessenger.of(context).showSnackBar(
                    const SnackBar(content: Text('참가자가 삭제되었습니다')),
                  );
                }
              } catch (e) {
                if (mounted) {
                  setState(() {
                    _isLoading = false;
                  });
                  
                  ScaffoldMessenger.of(context).showSnackBar(
                    SnackBar(content: Text('참가자 삭제에 실패했습니다: $e')),
                  );
                }
              }
            },
            style: TextButton.styleFrom(foregroundColor: Colors.red),
            child: const Text('삭제'),
          ),
        ],
      ),
    );
  }

  // 참가자 상세 정보 표시
  void _showParticipantDetails(Participant participant) {
    // 참가자 상세 정보 다이얼로그
    showDialog(
      context: context,
      builder: (context) => AlertDialog(
        title: Text(participant.name ?? '이름 없음'),
        content: Column(
          mainAxisSize: MainAxisSize.min,
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            if (participant.email != null)
              _buildInfoRow(Icons.email, participant.email!),
            if (participant.phoneNumber != null)
              _buildInfoRow(Icons.phone, participant.phoneNumber!),
            _buildInfoRow(Icons.info, '상태: ${participant.status ?? "없음"}'),
            _buildInfoRow(
              Icons.payment,
              '결제: ${participant.isPaid ? "완료" : "미완료"}${participant.paidAmount != null ? " (${participant.paidAmount}원)" : ""}',
            ),
            if (participant.notes != null) ...[
              const Divider(),
              const Text('메모:', style: TextStyle(fontWeight: FontWeight.bold)),
              Text(participant.notes!),
            ],
          ],
        ),
        actions: [
          TextButton(
            onPressed: () => Navigator.of(context).pop(),
            child: const Text('닫기'),
          ),
        ],
      ),
    );
  }

  // 점수 추가
  void _addScore() {
    // 점수 추가 다이얼로그 표시
    showDialog(
      context: context,
      builder: (context) => AlertDialog(
        title: const Text('점수 추가'),
        content: const Text('점수 추가 기능은 아직 구현 중입니다.'),
        actions: [
          TextButton(
            onPressed: () => Navigator.of(context).pop(),
            child: const Text('확인'),
          ),
        ],
      ),
    );
  }

  // 점수 수정
  void _editScore(Score score) {
    // 점수 수정 다이얼로그 표시
    showDialog(
      context: context,
      builder: (context) => AlertDialog(
        title: const Text('점수 수정'),
        content: Text('점수 ID: ${score.id} 수정 기능은 아직 구현 중입니다.'),
        actions: [
          TextButton(
            onPressed: () => Navigator.of(context).pop(),
            child: const Text('확인'),
          ),
        ],
      ),
    );
  }

  // 점수 삭제
  void _deleteScore(Score score) {
    // 점수 삭제 확인 다이얼로그
    showDialog(
      context: context,
      builder: (context) => AlertDialog(
        title: const Text('점수 삭제'),
        content: const Text('이 점수를 정말 삭제하시겠습니까?'),
        actions: [
          TextButton(
            onPressed: () => Navigator.of(context).pop(),
            child: const Text('취소'),
          ),
          TextButton(
            onPressed: () async {
              Navigator.of(context).pop();
              
              setState(() {
                _isLoading = true;
              });
              
              try {
                final eventService = Provider.of<EventService>(context, listen: false);
                await eventService.deleteScore(widget.event.id, score.id);
                
                if (mounted) {
                  setState(() {
                    _scores.removeWhere((s) => s.id == score.id);
                    _isLoading = false;
                  });
                  
                  ScaffoldMessenger.of(context).showSnackBar(
                    const SnackBar(content: Text('점수가 삭제되었습니다')),
                  );
                }
              } catch (e) {
                if (mounted) {
                  setState(() {
                    _isLoading = false;
                  });
                  
                  ScaffoldMessenger.of(context).showSnackBar(
                    SnackBar(content: Text('점수 삭제에 실패했습니다: $e')),
                  );
                }
              }
            },
            style: TextButton.styleFrom(foregroundColor: Colors.red),
            child: const Text('삭제'),
          ),
        ],
      ),
    );
  }

  // 점수 상세 정보 표시
  void _showScoreDetails(Score score) {
    // 참가자 이름 찾기
    final participant = _participants.firstWhere(
      (p) => p.memberId == score.memberId,
      orElse: () => Participant(
        id: '',
        eventId: '',
        memberId: score.memberId,
        name: '알 수 없음',
      ),
    );
    
    // 점수 상세 정보 다이얼로그
    showDialog(
      context: context,
      builder: (context) => AlertDialog(
        title: Text('${participant.name} 점수'),
        content: Column(
          mainAxisSize: MainAxisSize.min,
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            _buildInfoRow(Icons.score, '총점: ${score.totalScore}'),
            _buildInfoRow(
              Icons.calendar_today,
              '날짜: ${DateFormat('yyyy-MM-dd').format(score.date)}',
            ),
            const Divider(),
            const Text('프레임별 점수:', style: TextStyle(fontWeight: FontWeight.bold)),
            const SizedBox(height: 8),
            Wrap(
              spacing: 8,
              runSpacing: 8,
              children: score.frames.asMap().entries.map((entry) {
                return Container(
                  width: 40,
                  height: 40,
                  decoration: BoxDecoration(
                    border: Border.all(color: Colors.blue),
                    borderRadius: BorderRadius.circular(4),
                  ),
                  child: Center(
                    child: Text(
                      entry.value.toString(),
                      style: const TextStyle(
                        fontSize: 16,
                        fontWeight: FontWeight.bold,
                      ),
                    ),
                  ),
                );
              }).toList(),
            ),
            if (score.notes != null) ...[  
              const Divider(),
              const Text('메모:', style: TextStyle(fontWeight: FontWeight.bold)),
              Text(score.notes ?? ''),
            ],
          ],
        ),
        actions: [
          TextButton(
            onPressed: () => Navigator.of(context).pop(),
            child: const Text('닫기'),
          ),
        ],
      ),
    );
  }

  // 이벤트 공유 기능
  void _shareEvent() {
    // 공유할 내용 구성
    final String eventTitle = widget.event.title;
    final String eventType = widget.event.type ?? '기타';
    final String eventDate = DateFormat('yyyy-MM-dd HH:mm').format(widget.event.startDate);
    final String eventLocation = widget.event.location ?? '장소 미정';
    
    // 공개 URL 생성
    String shareUrl = '';
    if (widget.event.publicHash != null && widget.event.publicHash!.isNotEmpty) {
      shareUrl = 'https://bowling.example.com/events/${widget.event.publicHash}';
    }
    
    // 공유 메시지 구성
    final String shareText = '''
[볼링 이벤트 초대]
$eventTitle

유형: $eventType
일시: $eventDate
장소: $eventLocation

참가자: ${_participants.length}명

${shareUrl.isNotEmpty ? '참가 링크: $shareUrl' : ''}
${widget.event.accessPassword != null && widget.event.accessPassword!.isNotEmpty ? '비밀번호: ${widget.event.accessPassword}' : ''}
''';
    
    // 공유 다이얼로그 표시
    Share.share(shareText, subject: '볼링 이벤트: $eventTitle');
  }
  
  // 이벤트 알림 설정 기능
  Future<void> _setEventReminders() async {
    final notificationService = NotificationService();
    
    // 알림 권한 확인
    final hasPermission = await notificationService.requestPermission();
    
    if (!hasPermission) {
      if (mounted) {
        ScaffoldMessenger.of(context).showSnackBar(
          const SnackBar(content: Text('알림 권한이 없습니다. 설정에서 권한을 허용해주세요.')),
        );
      }
      return;
    }
    
    // 알림 설정 다이얼로그 표시
    if (!mounted) return;
    
    showDialog(
      context: context,
      builder: (context) => AlertDialog(
        title: const Text('이벤트 알림 설정'),
        content: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            ListTile(
              leading: const Icon(Icons.notifications_active),
              title: const Text('이벤트 시작 알림'),
              subtitle: Text('${DateFormat('yyyy-MM-dd HH:mm').format(widget.event.startDate)} 1시간 전'),
              onTap: () async {
                Navigator.of(context).pop();
                await notificationService.scheduleEventStartReminder(widget.event);
                
                if (mounted) {
                  ScaffoldMessenger.of(context).showSnackBar(
                    const SnackBar(content: Text('이벤트 시작 알림이 설정되었습니다')),
                  );
                }
              },
            ),
            if (widget.event.registrationDeadline != null) ListTile(
              leading: const Icon(Icons.timer),
              title: const Text('등록 마감 알림'),
              subtitle: Text('${DateFormat('yyyy-MM-dd HH:mm').format(widget.event.registrationDeadline!)} 1일 전'),
              onTap: () async {
                Navigator.of(context).pop();
                await notificationService.scheduleRegistrationDeadlineReminder(widget.event);
                
                if (mounted) {
                  ScaffoldMessenger.of(context).showSnackBar(
                    const SnackBar(content: Text('등록 마감 알림이 설정되었습니다')),
                  );
                }
              },
            ),
            ListTile(
              leading: const Icon(Icons.notifications_off),
              title: const Text('알림 취소'),
              subtitle: const Text('이 이벤트에 대한 모든 알림 취소'),
              onTap: () async {
                Navigator.of(context).pop();
                await notificationService.cancelEventNotifications(widget.event.id);
                
                if (mounted) {
                  ScaffoldMessenger.of(context).showSnackBar(
                    const SnackBar(content: Text('이벤트 알림이 취소되었습니다')),
                  );
                }
              },
            ),
          ],
        ),
        actions: [
          TextButton(
            onPressed: () => Navigator.of(context).pop(),
            child: const Text('닫기'),
          ),
        ],
      ),
    );
  }

}