import 'dart:io';
import 'package:flutter/material.dart';
import 'package:google_fonts/google_fonts.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:lucide_icons/lucide_icons.dart';
import 'package:image_picker/image_picker.dart';
import 'package:path_provider/path_provider.dart';
import 'package:path/path.dart' as path;
import '../models/sake_item.dart';
import '../services/gemini_service.dart';
import '../services/sake_recommendation_service.dart';
import '../widgets/analyzing_dialog.dart';
import '../widgets/sake_3d_carousel.dart';
import 'package:hive_flutter/hive_flutter.dart';
import '../providers/sake_list_provider.dart';
import '../widgets/sake_radar_chart.dart';
import '../services/pricing_calculator.dart';
import '../providers/theme_provider.dart';
import '../models/user_profile.dart';
import 'camera_screen.dart';


class SakeDetailScreen extends ConsumerStatefulWidget {
  final SakeItem sake;

  const SakeDetailScreen({super.key, required this.sake});

  @override
  ConsumerState<SakeDetailScreen> createState() => _SakeDetailScreenState();
}

class _SakeDetailScreenState extends ConsumerState<SakeDetailScreen> {
  // To trigger rebuilds if we don't switch to a stream
  late SakeItem _sake;
  int _currentImageIndex = 0;

  @override
  void initState() {
    super.initState();
    _sake = widget.sake;
  }

  @override
  Widget build(BuildContext context) {
    // Determine confidence text color
    final score = _sake.metadata.aiConfidence ?? 0;
    final Color confidenceColor = score > 80 ? Colors.green 
                              : score > 50 ? Colors.orange 
                              : Colors.red;

    // スマートレコメンド (Phase 1-8 Enhanced)
    final allSakeAsync = ref.watch(rawSakeListItemsProvider);
    final allSake = allSakeAsync.asData?.value ?? [];

    // 新しいレコメンドエンジン使用（五味チャート類似度込み）
    final recommendations = SakeRecommendationService.getRecommendations(
      target: _sake,
      allItems: allSake,
      limit: 10,
    );

    final relatedItems = recommendations.map((rec) => rec.item).toList();

    return Scaffold(
      body: CustomScrollView(
        slivers: [
          SliverAppBar(
            expandedHeight: 400.0,
            floating: false,
            pinned: true,
            iconTheme: const IconThemeData(color: Colors.white),
            actions: [
               IconButton(
                icon: Icon(_sake.userData.isFavorite ? Icons.favorite : Icons.favorite_border),
                color: _sake.userData.isFavorite ? Colors.pink : Colors.white,
                tooltip: 'お気に入り',
                onPressed: () => _toggleFavorite(),
              ),
               IconButton(
                icon: const Icon(LucideIcons.refreshCw),
                color: Colors.white,
                tooltip: 'AI再解析',
                onPressed: () => _reanalyze(context),
              ),
               IconButton(
                icon: const Icon(LucideIcons.trash2),
                color: Colors.white,
                tooltip: '削除',
                onPressed: () => _showDeleteDialog(context),
              ),
            ],
            flexibleSpace: FlexibleSpaceBar(
              background: Stack(
                fit: StackFit.expand,
                children: [
                  _sake.displayData.imagePaths.length > 1
                      ? Stack(
                          fit: StackFit.expand,
                          children: [
                            PageView.builder(
                              itemCount: _sake.displayData.imagePaths.length,
                              onPageChanged: (index) => setState(() => _currentImageIndex = index),
                              itemBuilder: (context, index) {
                                return Image.file(
                                  File(_sake.displayData.imagePaths[index]),
                                  fit: BoxFit.cover,
                                );
                              },
                            ),
                            // Simple Indicator
                            Positioned(
                              bottom: 16,
                              right: 16,
                              child: Container(
                                padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 6),
                                decoration: BoxDecoration(
                                  color: Colors.black54,
                                  borderRadius: BorderRadius.circular(16),
                                ),
                                child: Text(
                                  '${_currentImageIndex + 1} / ${_sake.displayData.imagePaths.length}',
                                  style: const TextStyle(color: Colors.white, fontSize: 12, fontWeight: FontWeight.bold),
                                ),
                              ),
                            ),
                            // Photo Edit Button
                            Positioned(
                              bottom: 16,
                              left: 16,
                              child: FloatingActionButton.small(
                                heroTag: 'photo_edit',
                                backgroundColor: Colors.white,
                                onPressed: () => _showPhotoEditModal(context),
                                child: const Icon(LucideIcons.image, color: Colors.black87),
                              ),
                            ),
                          ],
                        )
                      : Stack(
                          fit: StackFit.expand,
                          children: [
                            Hero(
                              tag: _sake.id,
                              child: _sake.displayData.imagePaths.isNotEmpty
                                  ? Image.file(
                                      File(_sake.displayData.imagePaths.first),
                                      fit: BoxFit.cover,
                                    )
                                  : Container(
                                      color: Colors.grey[300],
                                      child: const Icon(LucideIcons.image, size: 80, color: Colors.grey),
                                    ),
                            ),
                            // Photo Edit Button for single image
                            Positioned(
                              bottom: 16,
                              left: 16,
                              child: FloatingActionButton.small(
                                heroTag: 'photo_edit_single',
                                backgroundColor: Colors.white,
                                onPressed: () => _showPhotoEditModal(context),
                                child: const Icon(LucideIcons.image, color: Colors.black87),
                              ),
                            ),
                          ],
                        ),
                  // Scrim for Header Icons Visibility
                  Positioned(
                    top: 0,
                    left: 0,
                    right: 0,
                    height: 100,
                    child: Container(
                      decoration: BoxDecoration(
                        gradient: LinearGradient(
                          begin: Alignment.topCenter,
                          end: Alignment.bottomCenter,
                          colors: [
                            Colors.black.withValues(alpha: 0.7),
                            Colors.transparent,
                          ],
                        ),
                      ),
                    ),
                  ),
                ],
              ),
            ),
          ),
          SliverToBoxAdapter(
            child: Container(
              decoration: BoxDecoration(
                gradient: LinearGradient(
                  begin: Alignment.topCenter,
                  end: Alignment.bottomCenter,
                  colors: [
                    Theme.of(context).scaffoldBackgroundColor,
                    Theme.of(context).primaryColor.withValues(alpha: 0.05),
                  ],
                ),
              ),
              padding: const EdgeInsets.all(24.0),
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  // Confidence Badge
                   if (_sake.metadata.aiConfidence != null && _sake.itemType != ItemType.set)
                    Center(
                      child: Container(
                        margin: const EdgeInsets.only(bottom: 16),
                        padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 4),
                        decoration: BoxDecoration(
                          color: confidenceColor.withValues(alpha: 0.1),
                          borderRadius: BorderRadius.circular(20),
                          border: Border.all(color: confidenceColor.withValues(alpha: 0.5)),
                        ),
                        child: Row(
                          mainAxisSize: MainAxisSize.min,
                          children: [
                             Icon(LucideIcons.sparkles, size: 14, color: confidenceColor),
                             const SizedBox(width: 6),
                             Text(
                               'AI確信度: $score%',
                               style: TextStyle(
                                 color: confidenceColor,
                                 fontWeight: FontWeight.bold,
                                 fontSize: 12,
                               ),
                             ),
                          ],
                        ),
                      ),
                    ),

                  // Brand Name
                  Center(
                    child: InkWell(
                      onTap: () => _showTextEditDialog(
                        context,
                        title: '銘柄名を編集',
                        initialValue: _sake.displayData.name,
                        onSave: (value) async {
                          final box = Hive.box<SakeItem>('sake_items');
                          final updated = _sake.copyWith(name: value, isUserEdited: true);
                          await box.put(_sake.key, updated);
                          setState(() => _sake = updated);
                        },
                      ),
                      child: Row(
                        mainAxisSize: MainAxisSize.min,
                        children: [
                          Flexible(
                            child: Text(
                              _sake.displayData.name,
                              style: Theme.of(context).textTheme.headlineMedium?.copyWith(
                                    fontWeight: FontWeight.bold,
                                    letterSpacing: 1.2,
                                  ),
                              textAlign: TextAlign.center,
                            ),
                          ),
                          const SizedBox(width: 8),
                          Icon(LucideIcons.edit3, size: 20, color: Colors.grey[600]),
                        ],
                      ),
                    ),
                  ),
                  const SizedBox(height: 8),

                  // Brand / Prefecture
                  if (_sake.itemType != ItemType.set)
                  Center(
                    child: InkWell(
                      onTap: () => _showBreweryEditDialog(context),
                      child: Row(
                        mainAxisSize: MainAxisSize.min,
                        children: [
                          Flexible(
                            child: Text(
                              '${_sake.displayData.brewery} / ${_sake.displayData.prefecture}',
                              style: Theme.of(context).textTheme.bodyLarge?.copyWith(
                                    color: Theme.of(context).brightness == Brightness.dark
                                        ? Colors.grey[400]
                                        : Colors.grey[600],
                                    fontWeight: FontWeight.w500,
                                  ),
                            ),
                          ),
                          const SizedBox(width: 8),
                          Icon(LucideIcons.edit3, size: 18, color: Colors.grey[500]),
                        ],
                      ),
                    ),
                  ),
                  const SizedBox(height: 16),

                  // Tags Row
                  if (_sake.hiddenSpecs.flavorTags.isNotEmpty)
                    Padding(
                      padding: const EdgeInsets.symmetric(vertical: 8.0),
                      child: Material(
                        color: Colors.transparent,
                        child: InkWell(
                          onTap: () => _showTagEditDialog(context),
                          borderRadius: BorderRadius.circular(12),
                          child: Padding(
                            padding: const EdgeInsets.all(8.0),
                            child: Wrap(
                              alignment: WrapAlignment.center,
                              spacing: 8,
                              children: _sake.hiddenSpecs.flavorTags.map((tag) => Chip(
                                label: Text(tag, style: const TextStyle(fontSize: 10)),
                                visualDensity: VisualDensity.compact,
                                backgroundColor: Theme.of(context).primaryColor.withValues(alpha: 0.1),
                              )).toList(),
                            ),
                          ),
                        ),
                      ),
                    ),

                  const SizedBox(height: 24),

                  // AI Catchcopy (Mincho)
                  if (_sake.displayData.catchCopy != null && _sake.itemType != ItemType.set)
                  Padding(
                    padding: const EdgeInsets.symmetric(horizontal: 16.0),
                    child: Text(
                      _sake.displayData.catchCopy!,
                      style: GoogleFonts.zenOldMincho(
                        fontSize: 24,
                        height: 1.5,
                        fontWeight: FontWeight.w500,
                        color: Theme.of(context).brightness == Brightness.dark 
                              ? Colors.white 
                              : Theme.of(context).primaryColor, // Adaptive
                      ),
                      textAlign: TextAlign.center,
                    ),
                  ),
                  
                  const SizedBox(height: 32),
                  const SizedBox(height: 24),
                  const Divider(),
                  const SizedBox(height: 24),

                  // Taste Radar Chart (Phase 1-8)
                  if (_sake.hiddenSpecs.tasteStats.isNotEmpty && _sake.itemType != ItemType.set)
                    Padding(
                      padding: const EdgeInsets.symmetric(horizontal: 16.0),
                      child: Column(
                        children: [
                          Row(
                            children: [
                              Icon(LucideIcons.barChart2, size: 16, color: Theme.of(context).colorScheme.onSurface), // Adaptive Color
                              const SizedBox(width: 8),
                              Text(
                                'Visual Tasting',
                                style: Theme.of(context).textTheme.labelLarge?.copyWith(
                                  color: Theme.of(context).colorScheme.onSurface, // Adaptive Color
                                  fontWeight: FontWeight.bold,
                                ),
                              ),
                            ],
                          ),
                          const SizedBox(height: 16),
                          SizedBox(
                            height: 200,
                            child: SakeRadarChart(
                              tasteStats: _sake.hiddenSpecs.tasteStats,
                              primaryColor: Theme.of(context).primaryColor,
                            ),
                          ),
                        ],
                      ),
                    ),
                  
                  const SizedBox(height: 24),
                  const Divider(),
                  const SizedBox(height: 24),

                  // Description
                  if (_sake.hiddenSpecs.description != null && _sake.itemType != ItemType.set)
                  Text(
                    _sake.hiddenSpecs.description!,
                    style: Theme.of(context).textTheme.bodyMedium?.copyWith(
                          height: 1.8,
                          fontSize: 16,
                        ),
                  ),

                  const SizedBox(height: 32),
                  const Divider(),
                  const SizedBox(height: 16),

                  // AI Specs Accordion
                  if (_sake.itemType != ItemType.set)
                  ExpansionTile(
                    leading: Icon(LucideIcons.sparkles, color: Theme.of(context).primaryColor),
                    title: const Text('AIで分析された情報', style: TextStyle(fontWeight: FontWeight.bold)),
                    children: [
                      Padding(
                        padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
                        child: Column(
                          children: [
                            _buildSpecRow('甘辛度', _sake.hiddenSpecs.sweetnessScore?.toStringAsFixed(1) ?? '-'),
                            _buildSpecRow('濃淡度', _sake.hiddenSpecs.bodyScore?.toStringAsFixed(1) ?? '-'),
                            const SizedBox(height: 8),
                            Text(
                              '※ 今後のアップデートで精米歩合、アルコール度数などの詳細スペックを追加予定',
                              style: TextStyle(color: Colors.grey[600], fontSize: 12),
                            ),
                          ],
                        ),
                      ),
                    ],
                  ),

                  const SizedBox(height: 16),
                  const Divider(),
                  const SizedBox(height: 16),

                  // Memo Field
                  Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      Row(
                        children: [
                          Icon(LucideIcons.fileText, size: 16, color: Theme.of(context).primaryColor),
                          const SizedBox(width: 8),
                          Text(
                            'メモ',
                            style: Theme.of(context).textTheme.titleMedium?.copyWith(
                              fontWeight: FontWeight.bold,
                            ),
                          ),
                        ],
                      ),
                      const SizedBox(height: 12),
                      TextField(
                        controller: TextEditingController(text: _sake.userData.memo ?? ''),
                        maxLines: 4,
                        decoration: InputDecoration(
                          hintText: 'お店独自の情報をメモ',
                          border: const OutlineInputBorder(),
                          filled: true,
                          fillColor: Theme.of(context).cardColor,
                        ),
                        onChanged: (value) async {
                          // Auto-save
                          final box = Hive.box<SakeItem>('sake_items');
                          final updated = _sake.copyWith(memo: value, isUserEdited: true);
                          await box.put(_sake.key, updated);
                          setState(() => _sake = updated);
                        },
                      ),
                    ],
                  ),

                  const SizedBox(height: 48),

                  // Related Items 3D Carousel (Phase 1-8 Enhanced)
                  if (_sake.itemType != ItemType.set) ...[ // Hide for Set Items
                    Row(
                      children: [
                        Icon(LucideIcons.sparkles, size: 16, color: Theme.of(context).colorScheme.onSurface),
                        const SizedBox(width: 8),
                        Text(
                          'あわせて飲みたい',
                          style: Theme.of(context).textTheme.titleMedium?.copyWith(
                            fontWeight: FontWeight.bold,
                            color: Theme.of(context).colorScheme.onSurface, // Adaptive
                          ),
                        ),
                      ],
                    ),
                    const SizedBox(height: 8),
                    Text(
                      '五味チャート・タグ・酒蔵・産地から自動選出',
                      style: Theme.of(context).textTheme.bodySmall?.copyWith(
                        color: Theme.of(context).brightness == Brightness.dark 
                            ? Colors.grey[400] 
                            : Colors.grey[600],
                      ),
                    ),
                    const SizedBox(height: 16),
                    relatedItems.isNotEmpty
                        ? Sake3DCarousel(
                            items: relatedItems,
                            height: 220,
                          )
                        : Container(
                            height: 120,
                            alignment: Alignment.center,
                            child: Column(
                              mainAxisAlignment: MainAxisAlignment.center,
                              children: [
                                Icon(LucideIcons.info, color: Colors.grey[400], size: 32),
                                const SizedBox(height: 8),
                                Text(
                                  '関連する日本酒を追加すると\nおすすめが表示されます',
                                  textAlign: TextAlign.center,
                                  style: TextStyle(color: Colors.grey[600], fontSize: 12),
                                ),
                              ],
                            ),
                          ),
                    const SizedBox(height: 48),
                  ],

                  // Diagnostic Placeholder (Phase 1-6)
                  Container(
                    width: double.infinity,
                    padding: const EdgeInsets.all(24),
                    decoration: BoxDecoration(
                      border: Border.all(
                        color: Theme.of(context).primaryColor.withValues(alpha: 0.3),
                        style: BorderStyle.solid,
                        width: 2,
                      ),
                      borderRadius: BorderRadius.circular(16),
                      color: Theme.of(context).cardColor.withValues(alpha: 0.5),
                    ),
                    child: Column(
                      children: [
                        Icon(LucideIcons.wand2, color: Theme.of(context).colorScheme.onSurface, size: 32),
                        const SizedBox(height: 12),
                        Text(
                          '診断スタンプ (Coming Soon)',
                          style: Theme.of(context).textTheme.labelLarge?.copyWith(
                            color: Theme.of(context).colorScheme.onSurface,
                            fontWeight: FontWeight.bold,
                          ),
                        ),
                        const SizedBox(height: 4),
                        Text(
                          'MBTI診断との相性がここに表示されます',
                          style: Theme.of(context).textTheme.bodySmall?.copyWith(color: Colors.grey),
                        ),
                      ],
                    ),
                  ),
                  const SizedBox(height: 24),
                  ],
              ),
            ),
          ),
          
          // Phase 2-3: Business Pricing Section
          SliverToBoxAdapter(
            child: Consumer(
              builder: (context, ref, _) {
                 final userProfile = ref.watch(userProfileProvider);
                 if (!userProfile.isBusinessMode) return const SizedBox.shrink();
                 
                 return _buildPricingSection(context, userProfile);
              },
            ),
          ),
          
          // End of Pricing Section
          
          // Gap with Safe Area
          SliverPadding(
            padding: EdgeInsets.only(bottom: MediaQuery.paddingOf(context).bottom),
          ),
        ],
      ),
    );
  }

  bool _isAnalyzing = false;
  DateTime? _quotaLockoutTime;


  Future<void> _toggleFavorite() async {
     final box = Hive.box<SakeItem>('sake_items');

     final newItem = _sake.copyWith(isFavorite: !_sake.userData.isFavorite);

     await box.put(_sake.key, newItem);
     setState(() {
       _sake = newItem;
     });

     ScaffoldMessenger.of(context).showSnackBar(
       SnackBar(
         content: Text(newItem.userData.isFavorite ? 'お気に入りに追加しました' : 'お気に入りを解除しました'),
         duration: const Duration(milliseconds: 1000),
       ),
     );
  }

  Future<void> _reanalyze(BuildContext context) async {
    // 1. Check Locks
    if (_isAnalyzing) return;
    
    // 2. Check Quota Lockout
    if (_quotaLockoutTime != null) {
      final remaining = _quotaLockoutTime!.difference(DateTime.now());
      if (remaining.isNegative) {
        setState(() => _quotaLockoutTime = null); // Reset if time passed
      } else {
        ScaffoldMessenger.of(context).showSnackBar(
          SnackBar(content: Text('AI利用制限中です。あと${remaining.inSeconds}秒お待ちください。')),
        );
        return;
      }
    }

    if (_sake.displayData.imagePaths.isEmpty) return;

    setState(() => _isAnalyzing = true);

    try {
      showDialog(
        context: context,
        barrierDismissible: false,
        builder: (context) => const AnalyzingDialog(),
      );

      final geminiService = GeminiService();
      final result = await geminiService.analyzeSakeLabel(_sake.displayData.imagePaths);

      final newItem = _sake.copyWith(
          name: result.name ?? _sake.displayData.name,
          brand: result.brand ?? _sake.displayData.brewery,
          prefecture: result.prefecture ?? _sake.displayData.prefecture,
          description: result.description ?? _sake.hiddenSpecs.description,
          catchCopy: result.catchCopy ?? _sake.displayData.catchCopy,
          confidenceScore: result.confidenceScore,
          flavorTags: result.flavorTags.isNotEmpty ? result.flavorTags : _sake.hiddenSpecs.flavorTags,
          tasteStats: result.tasteStats.isNotEmpty ? result.tasteStats : _sake.hiddenSpecs.tasteStats,
      );

      final box = Hive.box<SakeItem>('sake_items');
      await box.put(_sake.key, newItem);
      
      setState(() {
        _sake = newItem;
      });

      if (context.mounted) {
        Navigator.pop(context); // Close dialog
        ScaffoldMessenger.of(context).showSnackBar(
          const SnackBar(content: Text('再解析が完了しました')),
        );
      }

    } catch (e) {
      if (context.mounted) {
        Navigator.pop(context); // Close dialog (safely pops the top route, hopefully the dialog)
        
        // Check for Quota Error to set Lockout
        if (e.toString().contains('Quota') || e.toString().contains('429')) {
           setState(() {
             _quotaLockoutTime = DateTime.now().add(const Duration(minutes: 1));
           });
        }

        ScaffoldMessenger.of(context).showSnackBar(
          SnackBar(content: Text('エラー: $e')),
        );
      }
    } finally {
      if (mounted) {
        setState(() => _isAnalyzing = false);
      }
    }
  }


  void _showTagEditDialog(BuildContext context) {
    final TextEditingController tagController = TextEditingController();
    final allTags = _sake.hiddenSpecs.flavorTags.toSet();

    showDialog(
      context: context,
      builder: (ctx) => StatefulBuilder(
        builder: (context, setModalState) {
          return AlertDialog(
            title: const Text('タグ編集'),
            contentPadding: const EdgeInsets.fromLTRB(24, 20, 24, 0),
            content: ConstrainedBox(
              constraints: BoxConstraints(
                maxWidth: MediaQuery.of(context).size.width * 0.85,
                minWidth: 300,
              ),
              child: SingleChildScrollView(
                child: Column(
                  mainAxisSize: MainAxisSize.min,
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: [
                    Wrap(
                      spacing: 8,
                      runSpacing: 8,
                      children: allTags.map((tag) => Chip(
                        label: Text(tag),
                        onDeleted: () {
                           setModalState(() => allTags.remove(tag));
                        },
                      )).toList(),
                    ),
                    const SizedBox(height: 16),
                    Row(
                      children: [
                        Expanded(
                          child: TextField(
                            controller: tagController,
                            decoration: const InputDecoration(
                              hintText: '新しいタグを追加',
                              isDense: true,
                            ),
                            onSubmitted: (val) {
                              if (val.trim().isNotEmpty) {
                                setModalState(() {
                                  allTags.add(val.trim());
                                  tagController.clear();
                                });
                              }
                            },
                          ),
                        ),
                        IconButton(
                          icon: const Icon(LucideIcons.plus),
                          onPressed: () {
                             if (tagController.text.trim().isNotEmpty) {
                                setModalState(() {
                                  allTags.add(tagController.text.trim());
                                  tagController.clear();
                                });
                             }
                          },
                        ),
                      ],
                    ),
                  ],
                ),
              ),
            ),
            actions: [
              TextButton(
                onPressed: () => Navigator.pop(context),
                child: const Text('キャンセル'),
              ),
              TextButton(
                onPressed: () {
                  _updateTags(allTags.toList());
                  Navigator.pop(context);
                },
                child: const Text('保存'),
              ),
            ],
          );
        }
      ),
    );
  }

  Future<void> _updateTags(List<String> newTags) async {
      final box = Hive.box<SakeItem>('sake_items');
      final newItem = _sake.copyWith(
         flavorTags: newTags,
         isUserEdited: true,
      );

      await box.put(_sake.key, newItem);
      setState(() => _sake = newItem);
  }

  // Phase 2-3: Business Pricing UI (Simplified)
  Widget _buildPricingSection(BuildContext context, UserProfile userProfile) {
    // Calculated Price
    final calculatedPrice = PricingCalculator.calculatePrice(_sake);

    return Container(
      margin: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
      padding: const EdgeInsets.all(16),
      decoration: BoxDecoration(
        color: Colors.orange.withValues(alpha: 0.1),
        borderRadius: BorderRadius.circular(12),
        border: Border.all(color: Colors.orange.withValues(alpha: 0.3)),
      ),
      child: Row(
        mainAxisAlignment: MainAxisAlignment.spaceBetween,
        children: [
          Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              Row(
                children: [
                  Icon(LucideIcons.coins, color: Colors.orange[800], size: 18),
                  const SizedBox(width: 6),
                  Text(
                    '価格設定',
                    style: TextStyle(fontWeight: FontWeight.bold, fontSize: 14, color: Colors.orange[900]),
                  ),
                ],
              ),
              const SizedBox(height: 4),
              Text(
                calculatedPrice > 0
                    ? '現在$calculatedPrice円'
                    : '未設定',
                style: TextStyle(
                  fontSize: 18,
                  fontWeight: FontWeight.bold,
                  color: calculatedPrice > 0 ? Colors.orange[900] : Colors.grey,
                ),
              ),
            ],
          ),
          ElevatedButton(
            onPressed: () => _showPriceSettingsDialog(userProfile),
            style: ElevatedButton.styleFrom(
              backgroundColor: Colors.orange,
              foregroundColor: Colors.white,
            ),
            child: const Text('編集'),
          ),
        ],
      ),
    );
  }

  Future<void> _showPriceSettingsDialog(UserProfile argProfile) async {
    // final userProfile = ref.read(userProfileProvider); // Now passed as arg
    if (!argProfile.isBusinessMode) return;

    int? cost = _sake.userData.costPrice;
    int? manual = _sake.userData.price;
    double markup = _sake.userData.markup;
    // Copy existing variants
    Map<String, int> variants = Map.from(_sake.userData.priceVariants ?? {});
    
    // Tiny State for Inline Adding
    String tempName = '';
    String tempPrice = ''; // String to handle empty better
    final TextEditingController nameController = TextEditingController();
    final TextEditingController priceController = TextEditingController();

    await showDialog(
      context: context,
      builder: (context) => StatefulBuilder(
        builder: (context, setModalState) {
          final price = PricingCalculator.calculatePrice(
            _sake.copyWith(costPrice: cost, manualPrice: manual, markup: markup)
          );

          void addVariant() {
              if (tempName.isNotEmpty && tempPrice.isNotEmpty) {
                 final parsedPrice = int.tryParse(tempPrice);
                 if (parsedPrice != null) {
                    setModalState(() {
                       variants[tempName] = parsedPrice;
                       // Clear inputs
                       tempName = '';
                       tempPrice = '';
                       nameController.clear();
                       priceController.clear();
                    });
                 }
              }
          }

          return AlertDialog(
            title: const Text('価格設定', style: TextStyle(fontWeight: FontWeight.bold)),
            content: SingleChildScrollView(
              child: Column(
                mainAxisSize: MainAxisSize.min,
                crossAxisAlignment: CrossAxisAlignment.stretch,
                children: [
                   // 1. Manual Price (Top Priority)
                   TextFormField(
                     initialValue: manual?.toString() ?? '',
                     keyboardType: TextInputType.number,
                     decoration: const InputDecoration(
                        labelText: '販売価格 (税込)',
                        hintText: '手動で設定する場合に入力',
                        suffixText: '円',
                        border: OutlineInputBorder(),
                     ),
                     style: const TextStyle(fontWeight: FontWeight.bold, fontSize: 18),
                     onChanged: (v) => setModalState(() => manual = int.tryParse(v)),
                   ),
                   const SizedBox(height: 24),
                   
                   // 2. Variants (Inline Entry)
                   const Text('提供バリエーション', style: TextStyle(fontWeight: FontWeight.bold)),
                   const SizedBox(height: 8),

                   // Presets Chips
                   Wrap(
                     spacing: 8.0,
                     runSpacing: 4.0,
                     children: [
                       for (var preset in ['グラス (90ml)', '一合 (180ml)', 'ボトル (720ml)'])
                         ChoiceChip(
                           label: Text(preset),
                           selected: tempName == preset,
                           onSelected: (selected) {
                              setModalState(() {
                                 // Auto-fill logic
                                 if (selected) {
                                    tempName = preset;
                                    nameController.text = preset;
                                 }
                              });
                           },
                           backgroundColor: Colors.grey[200],
                           selectedColor: Colors.orange[100],
                         ),
                     ],
                   ),
                   const SizedBox(height: 12),

                   // Inline Inputs
                   Row(
                     crossAxisAlignment: CrossAxisAlignment.start,
                     children: [
                       Expanded(
                         flex: 3,
                         child: TextField(
                           controller: nameController,
                           decoration: const InputDecoration(
                             labelText: '名称',
                             hintText: '例: 徳利', 
                             isDense: true,
                             border: OutlineInputBorder(),
                           ),
                           onChanged: (v) => tempName = v,
                         ),
                       ),
                       const SizedBox(width: 8),
                       Expanded(
                         flex: 2,
                         child: TextField(
                           controller: priceController, // Using controller to clear
                           keyboardType: TextInputType.number,
                           decoration: const InputDecoration(
                             labelText: '価格',
                             suffixText: '円',
                             isDense: true,
                             border: OutlineInputBorder(),
                           ),
                           onChanged: (v) => tempPrice = v,
                         ),
                       ),
                     ],
                   ),
                   const SizedBox(height: 8),
                   SizedBox(
                     width: double.infinity,
                     child: ElevatedButton.icon(
                       icon: const Icon(LucideIcons.plus),
                       label: const Text('リストに追加'),
                       style: ElevatedButton.styleFrom(
                         backgroundColor: (tempName.isNotEmpty && tempPrice.isNotEmpty) ? Colors.orange : Colors.grey,
                         foregroundColor: Colors.white,
                       ),
                       onPressed: (tempName.isNotEmpty && tempPrice.isNotEmpty) 
                          ? addVariant 
                          : null,
                     ),
                   ),

                   const SizedBox(height: 16),

                   // List of Added Variants
                   if (variants.isNotEmpty)
                     Container(
                       decoration: BoxDecoration(
                         border: Border.all(color: Colors.grey.withValues(alpha: 0.3)),
                         borderRadius: BorderRadius.circular(8),
                       ),
                       child: Column(
                         children: [
                           ...variants.entries.map((e) => Column(
                             children: [
                               ListTile(
                                 dense: true,
                                 title: Text(e.key, style: const TextStyle(fontWeight: FontWeight.w500)),
                                 trailing: Row(
                                   mainAxisSize: MainAxisSize.min,
                                   children: [
                                      Text('${PricingCalculator.formatPrice(e.value)}円', style: const TextStyle(fontWeight: FontWeight.bold)),
                                      const SizedBox(width: 8),
                                      IconButton(
                                        icon: const Icon(LucideIcons.x, color: Colors.grey, size: 18),
                                        onPressed: () {
                                            setModalState(() {
                                              variants.remove(e.key);
                                            });
                                        },
                                      ),
                                   ],
                                 ),
                               ),
                               if (e.key != variants.keys.last) const Divider(height: 1),
                             ],
                           )),
                         ],
                       ),
                     ),

                   const SizedBox(height: 24),
                   
                   // 3. Auto Calculation (Accordion)
                   ExpansionTile(
                     title: const Text('原価・掛率設定 (自動計算)', style: TextStyle(fontSize: 14, color: Colors.grey)),
                     children: [
                        Padding(
                          padding: const EdgeInsets.symmetric(horizontal: 0, vertical: 8),
                          child: Column(
                            children: [
                              TextFormField(
                                initialValue: cost?.toString() ?? '',
                                keyboardType: TextInputType.number,
                                decoration: const InputDecoration(
                                  labelText: '仕入れ値 (円)',
                                  suffixText: '円',
                                  border: OutlineInputBorder(),
                                  prefixIcon: Icon(Icons.currency_yen),
                                ),
                                onChanged: (v) => setModalState(() => cost = int.tryParse(v)),
                              ),
                              const SizedBox(height: 16),
                              Row(
                                mainAxisAlignment: MainAxisAlignment.spaceBetween,
                                children: [
                                  Text('掛率: ${markup.toStringAsFixed(1)}倍'),
                                  TextButton(
                                    child: const Text('リセット'),
                                    onPressed: () => setModalState(() => markup = argProfile.defaultMarkup),
                                  )
                                ],
                              ),
                              Slider(
                                value: markup,
                                min: 1.0,
                                max: 5.0,
                                divisions: 40,
                                label: markup.toStringAsFixed(1),
                                activeColor: Colors.orange,
                                onChanged: (v) => setModalState(() => markup = v),
                              ),
                              Text(
                                '参考計算価格: ${PricingCalculator.formatPrice(PricingCalculator.roundUpTo50((cost ?? 0) * markup))}円 (50円切上)',
                                style: const TextStyle(color: Colors.grey, fontSize: 12),
                              ),
                            ],
                          ),
                        ),
                     ],
                   ),
                ],
              ),
            ),
            actions: [
              TextButton(
                onPressed: () => Navigator.pop(context),
                child: const Text('キャンセル'),
              ),
              ElevatedButton(
                onPressed: () {
                   _updatePricing(
                     costPrice: cost, 
                     manualPrice: manual, 
                     markup: markup,
                     priceVariants: variants.isEmpty ? null : variants,
                   );
                   Navigator.pop(context);
                },
                child: const Text('保存'),
              ),
            ],
          );
        }
      ),
    );
  }

  Future<void> _updatePricing({int? costPrice, int? manualPrice, double? markup, Map<String, int>? priceVariants}) async {
      final box = Hive.box<SakeItem>('sake_items');
      final newItem = _sake.copyWith(
         costPrice: costPrice,
         manualPrice: manualPrice,
         markup: markup ?? _sake.userData.markup,
         priceVariants: priceVariants,
         isUserEdited: true,
      );

      await box.put(_sake.key, newItem);
      setState(() => _sake = newItem);
  }

  Future<void> _showDeleteDialog(BuildContext context) async {
    final confirmed = await showDialog<bool>(
      context: context,
      builder: (context) => AlertDialog(
        title: Row(
          children: [
            Icon(LucideIcons.alertTriangle, color: Colors.orange, size: 24),
            const SizedBox(width: 8),
            const Text('削除確認'),
          ],
        ),
        content: Text('「${_sake.displayData.name}」を削除しますか？\nこの操作は取り消せません。'),
        actions: [
          TextButton(
            child: const Text('キャンセル'),
            onPressed: () => Navigator.pop(context, false),
          ),
          ElevatedButton(
            style: ElevatedButton.styleFrom(
              backgroundColor: Colors.red, // Keeps Red for delete as it is destructive
              foregroundColor: Colors.white,
            ),
            child: const Text('削除'),
            onPressed: () => Navigator.pop(context, true),
          ),
        ],
      ),
    );

    if (confirmed == true && mounted) {
      final box = Hive.box<SakeItem>('sake_items');
      await box.delete(_sake.key);

      if (mounted) {
        Navigator.pop(context); // Return to previous screen
        ScaffoldMessenger.of(context).showSnackBar(
          const SnackBar(content: Text('削除しました')),
        );
      }
    }
  }

  /// スペック行を構築
  Widget _buildSpecRow(String label, String value) {
    return Padding(
      padding: const EdgeInsets.symmetric(vertical: 4),
      child: Row(
        mainAxisAlignment: MainAxisAlignment.spaceBetween,
        children: [
          Text(label, style: const TextStyle(fontWeight: FontWeight.w500)),
          Text(value, style: TextStyle(color: Colors.grey[700])),
        ],
      ),
    );
  }

  /// テキスト編集ダイアログを表示
  Future<void> _showTextEditDialog(
    BuildContext context, {
    required String title,
    required String initialValue,
    required Future<void> Function(String) onSave,
  }) async {
    final controller = TextEditingController(text: initialValue);
    await showDialog(
      context: context,
      builder: (context) => AlertDialog(
        title: Text(title),
        content: TextField(
          controller: controller,
          decoration: const InputDecoration(
            border: OutlineInputBorder(),
          ),
          autofocus: true,
          maxLines: null,
        ),
        actions: [
          TextButton(
            onPressed: () => Navigator.pop(context),
            child: const Text('キャンセル'),
          ),
          ElevatedButton(
            onPressed: () async {
              await onSave(controller.text);
              if (context.mounted) Navigator.pop(context);
            },
            child: const Text('保存'),
          ),
        ],
      ),
    );
  }

  /// 酒蔵・都道府県編集ダイアログを表示
  Future<void> _showBreweryEditDialog(BuildContext context) async {
    final breweryController = TextEditingController(text: _sake.displayData.brewery);
    final prefectureController = TextEditingController(text: _sake.displayData.prefecture);
    await showDialog(
      context: context,
      builder: (context) => AlertDialog(
        title: const Text('酒蔵・都道府県を編集'),
        content: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            TextField(
              controller: breweryController,
              decoration: const InputDecoration(
                labelText: '酒蔵',
                border: OutlineInputBorder(),
              ),
            ),
            const SizedBox(height: 16),
            TextField(
              controller: prefectureController,
              decoration: const InputDecoration(
                labelText: '都道府県',
                border: OutlineInputBorder(),
              ),
            ),
          ],
        ),
        actions: [
          TextButton(
            onPressed: () => Navigator.pop(context),
            child: const Text('キャンセル'),
          ),
          ElevatedButton(
            onPressed: () async {
              final box = Hive.box<SakeItem>('sake_items');
              final updated = _sake.copyWith(
                brand: breweryController.text,
                prefecture: prefectureController.text,
                isUserEdited: true,
              );
              await box.put(_sake.key, updated);
              setState(() => _sake = updated);
              if (context.mounted) Navigator.pop(context);
            },
            child: const Text('保存'),
          ),
        ],
      ),
    );
  }

  /// 写真編集モーダルを表示
  Future<void> _showPhotoEditModal(BuildContext context) async {
    await showModalBottomSheet(
      context: context,
      isScrollControlled: true,
      backgroundColor: Colors.transparent,
      builder: (context) => _PhotoEditModal(
        sake: _sake,
        onUpdated: (updatedSake) {
          setState(() => _sake = updatedSake);
        },
      ),
    );
  }
}

/// 写真編集モーダルウィジェット
class _PhotoEditModal extends StatefulWidget {
  final SakeItem sake;
  final Function(SakeItem) onUpdated;

  const _PhotoEditModal({
    required this.sake,
    required this.onUpdated,
  });

  @override
  State<_PhotoEditModal> createState() => _PhotoEditModalState();
}

class _PhotoEditModalState extends State<_PhotoEditModal> {
  late List<String> _imagePaths;

  @override
  void initState() {
    super.initState();
    _imagePaths = List.from(widget.sake.displayData.imagePaths);
  }

  @override
  Widget build(BuildContext context) {
    return Container(
      height: MediaQuery.of(context).size.height * 0.7,
      decoration: BoxDecoration(
        color: Theme.of(context).scaffoldBackgroundColor,
        borderRadius: const BorderRadius.vertical(top: Radius.circular(20)),
      ),
      child: Column(
        children: [
          // Handle bar
          Container(
            margin: const EdgeInsets.only(top: 12, bottom: 8),
            width: 40,
            height: 4,
            decoration: BoxDecoration(
              color: Colors.grey[300],
              borderRadius: BorderRadius.circular(2),
            ),
          ),
          // Header
          Padding(
            padding: const EdgeInsets.all(16),
            child: Row(
              mainAxisAlignment: MainAxisAlignment.spaceBetween,
              children: [
                const Text(
                  '写真を編集',
                  style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
                ),
                IconButton(
                  icon: const Icon(LucideIcons.x),
                  onPressed: () => Navigator.pop(context),
                ),
              ],
            ),
          ),
          const Divider(height: 1),
          // Photo grid
          Expanded(
            child: _imagePaths.isEmpty
                ? Center(
                    child: Column(
                      mainAxisAlignment: MainAxisAlignment.center,
                      children: [
                        Icon(LucideIcons.image, size: 64, color: Colors.grey[400]),
                        const SizedBox(height: 16),
                        Text(
                          '写真を追加してください',
                          style: TextStyle(color: Colors.grey[600]),
                        ),
                      ],
                    ),
                  )
                : ReorderableListView.builder(
                    padding: const EdgeInsets.all(16),
                    itemCount: _imagePaths.length,
                    onReorder: (oldIndex, newIndex) {
                      setState(() {
                        if (oldIndex < newIndex) {
                          newIndex -= 1;
                        }
                        final item = _imagePaths.removeAt(oldIndex);
                        _imagePaths.insert(newIndex, item);
                      });
                    },
                    itemBuilder: (context, index) {
                      final path = _imagePaths[index];
                      return Card(
                        key: ValueKey(path),
                        margin: const EdgeInsets.only(bottom: 12),
                        child: ListTile(
                          leading: ClipRRect(
                            borderRadius: BorderRadius.circular(8),
                            child: Image.file(
                              File(path),
                              width: 60,
                              height: 60,
                              fit: BoxFit.cover,
                            ),
                          ),
                          title: Text(
                            index == 0 ? 'メイン写真' : '写真 ${index + 1}',
                            style: const TextStyle(fontWeight: FontWeight.w500),
                          ),
                          trailing: Row(
                            mainAxisSize: MainAxisSize.min,
                            children: [
                              Icon(LucideIcons.gripVertical, color: Colors.grey[400]),
                              const SizedBox(width: 8),
                              IconButton(
                                icon: const Icon(LucideIcons.trash2, color: Colors.red),
                                onPressed: () => _deletePhoto(index),
                              ),
                            ],
                          ),
                        ),
                      );
                    },
                  ),
          ),
          // Bottom buttons
          Container(
            padding: const EdgeInsets.all(16),
            decoration: BoxDecoration(
              color: Theme.of(context).cardColor,
              boxShadow: [
                BoxShadow(
                  color: Colors.black.withOpacity(0.05),
                  blurRadius: 8,
                  offset: const Offset(0, -2),
                ),
              ],
            ),
            child: SafeArea(
              child: Row(
                children: [
                  Expanded(
                    child: OutlinedButton.icon(
                      icon: const Icon(LucideIcons.camera),
                      label: const Text('写真を追加'),
                      onPressed: _addPhoto,
                      style: OutlinedButton.styleFrom(
                        padding: const EdgeInsets.symmetric(vertical: 14),
                      ),
                    ),
                  ),
                  const SizedBox(width: 12),
                  Expanded(
                    child: ElevatedButton(
                      onPressed: _saveChanges,
                      style: ElevatedButton.styleFrom(
                        backgroundColor: Theme.of(context).primaryColor,
                        foregroundColor: Colors.white,
                        padding: const EdgeInsets.symmetric(vertical: 14),
                      ),
                      child: const Text('保存'),
                    ),
                  ),
                ],
              ),
            ),
          ),
        ],
      ),
    );
  }

  Future<void> _addPhoto() async {
    final picker = ImagePicker();

    // Show bottom sheet with camera/gallery options
    final source = await showModalBottomSheet<ImageSource>(
      context: context,
      builder: (context) => SafeArea(
        child: Wrap(
          children: [
            ListTile(
              leading: const Icon(LucideIcons.camera),
              title: const Text('カメラで撮影'),
              onTap: () async {
                 Navigator.pop(context); // Close sheet
                 // Navigate to CameraScreen in returnPath mode
                 final result = await Navigator.push(
                   context,
                   MaterialPageRoute(builder: (_) => CameraScreen(mode: CameraMode.returnPath)),
                 );
                 if (result is String) {
                   // Add the path
                   await _saveNewPhoto(result);
                 }
              },
            ),
            ListTile(
              leading: const Icon(LucideIcons.image),
              title: const Text('ギャラリーから選択'),
              onTap: () => Navigator.pop(context, ImageSource.gallery),
            ),
          ],
        ),
      ),
    );

    if (source == null) return;

    // Handle Gallery (Camera is handled in ListTile callback)
    if (source == ImageSource.gallery) {
      try {
        final XFile? pickedFile = await picker.pickImage(source: source);
        if (pickedFile == null) return;

        // Save to app directory
        final appDir = await getApplicationDocumentsDirectory();
        final fileName = '${DateTime.now().millisecondsSinceEpoch}.jpg';
        final savedPath = path.join(appDir.path, fileName);
        await File(pickedFile.path).copy(savedPath);

        await _saveNewPhoto(savedPath);

      } catch (e) {
        if (mounted) {
          ScaffoldMessenger.of(context).showSnackBar(
            SnackBar(content: Text('エラー: $e')),
          );
        }
      }
    }
  }

  Future<void> _saveNewPhoto(String imagePath) async {
      setState(() {
        _imagePaths.add(imagePath);
      });

      if (mounted) {
        ScaffoldMessenger.of(context).showSnackBar(
          const SnackBar(content: Text('写真を追加しました')),
        );
      }
  }

  void _deletePhoto(int index) {
    setState(() {
      _imagePaths.removeAt(index);
    });
  }

  Future<void> _saveChanges() async {
    final box = Hive.box<SakeItem>('sake_items');
    final updatedSake = widget.sake.copyWith(
      imagePaths: _imagePaths,
      isUserEdited: true,
    );
    await box.put(widget.sake.key, updatedSake);
    widget.onUpdated(updatedSake);
    if (mounted) {
      Navigator.pop(context);
      ScaffoldMessenger.of(context).showSnackBar(
        const SnackBar(content: Text('写真を更新しました')),
      );
    }
  }
}