import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import '../core/navigation_provider.dart';
import '../providers/data_providers.dart';

/// 饮食记录列表
class DietRecordListPage extends ConsumerWidget {
  const DietRecordListPage({super.key});
  @override Widget build(BuildContext context, WidgetRef ref) {
    final service = ref.watch(dietServiceProvider);
    return Scaffold(
      appBar: AppBar(title: const Text('饮食记录')),
      body: FutureBuilder<List<Map<String, dynamic>>>(
        future: service.getRecords(),
        builder: (ctx, snap) {
          if (snap.connectionState == ConnectionState.waiting) return const Center(child: CircularProgressIndicator());
          if (!snap.hasData || snap.data!.isEmpty) return _empty(context, '饮食记录', '暂无饮食记录，可通过「拍饮食」录入');
          return ListView.builder(
            itemCount: snap.data!.length,
            itemBuilder: (ctx, i) {
              final d = snap.data![i];
              final items = (d['foodItems'] as List?)?.cast<Map<String, dynamic>>() ?? [];
              return Card(
                margin: const EdgeInsets.symmetric(horizontal: 16, vertical: 4),
                child: ListTile(
                  title: Text('${d['mealType'] ?? ''}  ${d['totalCalories'] ?? 0}千卡'),
                  subtitle: Text(items.map((f) => f['name']).join(' | ')),
                  trailing: _starWidget(d['healthScore']),
                ),
              );
            },
          );
        },
      ),
    );
  }
  Widget _starWidget(dynamic score) {
    final s = score is int ? score : 3;
    return Row(mainAxisSize: MainAxisSize.min, children: List.generate(5, (i) => Icon(Icons.star, size: 16, color: i < s ? const Color(0xFFF9A825) : Colors.grey[300])));
  }
}

/// 运动计划页
class ExercisePlanPage extends ConsumerWidget {
  const ExercisePlanPage({super.key});
  @override Widget build(BuildContext context, WidgetRef ref) {
    final plan = ref.watch(currentExercisePlanProvider);
    return Scaffold(
      appBar: AppBar(title: const Text('运动计划'), centerTitle: true),
      floatingActionButton: FloatingActionButton.extended(
        onPressed: () => _createDefaultPlan(ref, context),
        icon: const Icon(Icons.add),
        label: const Text('创建本周计划'),
        backgroundColor: const Color(0xFF8B9CF7),
      ),
      body: plan.when(
        data: (data) {
          if (data == null || data.isEmpty) return _empty(context, '运动计划', '暂无运动计划，点击右下角创建');
          final items = (data['items'] as List?)?.cast<Map<String, dynamic>>() ?? [];
          final weekDays = ['周一', '周二', '周三', '周四', '周五', '周六', '周日'];
          final completedCount = items.where((i) => i['isCompleted'] == true).length;
          final totalCount = items.where((i) => i['isRestDay'] != true).length;
          
          return ListView(children: [
            _buildProgressCard(completedCount, totalCount),
            const SizedBox(height: 16),
            ...items.asMap().entries.map((entry) {
              final i = entry.key;
              final item = entry.value;
              final day = item['dayOfWeek'] is int ? item['dayOfWeek'] as int : i;
              final isRest = item['isRestDay'] == true;
              final isDone = item['isCompleted'] == true;
              return _ExercisePlanItem(
                day: weekDays[day],
                dayIndex: day,
                isRest: isRest,
                isDone: isDone,
                exerciseType: item['exerciseType']?.toString() ?? '',
                duration: item['durationMinutes'] is int ? item['durationMinutes'] as int : 0,
                onCheckIn: () => _checkIn(ref, item['id'], context),
              );
            }),
          ]);
        },
        loading: () => const Center(child: CircularProgressIndicator(color: Color(0xFF8B9CF7))),
        error: (_, __) => _empty(context, '运动计划', '暂无运动计划，点击右下角创建'),
      ),
    );
  }

  Widget _buildProgressCard(int completed, int total) {
    final progress = total > 0 ? (completed / total * 100).toInt() : 0;
    return Container(
      margin: const EdgeInsets.all(16),
      padding: const EdgeInsets.all(16),
      decoration: BoxDecoration(
        color: const Color(0xFFF0F2FF),
        borderRadius: BorderRadius.circular(20),
      ),
      child: Column(children: [
        const Text('🏃 本周运动进度', style: TextStyle(fontSize: 16, fontWeight: FontWeight.w600)),
        const SizedBox(height: 12),
        Row(children: [
          Container(
            width: 60,
            height: 60,
            decoration: BoxDecoration(
              color: const Color(0xFF8B9CF7),
              borderRadius: BorderRadius.circular(30),
            ),
            child: Center(
              child: Text('$progress%', style: const TextStyle(fontSize: 18, fontWeight: FontWeight.w600, color: Colors.white)),
            ),
          ),
          const SizedBox(width: 16),
          Expanded(
            child: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
              Text('已完成 $completed/$total 天', style: const TextStyle(fontSize: 16, fontWeight: FontWeight.w500)),
              const SizedBox(height: 8),
              Container(
                height: 8,
                decoration: BoxDecoration(color: Colors.grey[200], borderRadius: BorderRadius.circular(4)),
                child: FractionallySizedBox(
                  widthFactor: progress / 100,
                  child: Container(
                    decoration: BoxDecoration(color: const Color(0xFF8B9CF7), borderRadius: BorderRadius.circular(4)),
                  ),
                ),
              ),
            ]),
          ),
        ]),
      ]),
    );
  }

  void _createDefaultPlan(WidgetRef ref, BuildContext context) async {
    final service = ref.read(exerciseServiceProvider);
    final today = DateTime.now();
    final monday = today.subtract(Duration(days: today.weekday - 1));
    final items = List.generate(7, (i) => {
      'dayOfWeek': i,
      'exerciseType': i == 2 || i == 5 ? '休息' : '散步',
      'durationMinutes': i == 2 || i == 5 ? 0 : 30,
      'isRestDay': i == 2 || i == 5,
    });
    await service.createPlan({
      'weekStartDate': '${monday.year}-${monday.month.toString().padLeft(2, '0')}-${monday.day.toString().padLeft(2, '0')}',
      'items': items,
    });
    ref.invalidate(currentExercisePlanProvider);
    if (!context.mounted) return;
    ScaffoldMessenger.of(context).showSnackBar(const SnackBar(
      content: Text('运动计划已创建 ✅'),
      backgroundColor: Color(0xFF8B9CF7),
    ));
  }

  void _checkIn(WidgetRef ref, String itemId, BuildContext context) async {
    final service = ref.read(exerciseServiceProvider);
    await service.checkIn(itemId);
    ref.invalidate(currentExercisePlanProvider);
    if (!context.mounted) return;
    ScaffoldMessenger.of(context).showSnackBar(const SnackBar(
      content: Text('打卡成功 ✅'),
      backgroundColor: Color(0xFF43A047),
    ));
  }
}

class _ExercisePlanItem extends StatelessWidget {
  final String day;
  final int dayIndex;
  final bool isRest;
  final bool isDone;
  final String exerciseType;
  final int duration;
  final VoidCallback onCheckIn;

  const _ExercisePlanItem({
    required this.day,
    required this.dayIndex,
    required this.isRest,
    required this.isDone,
    required this.exerciseType,
    required this.duration,
    required this.onCheckIn,
  });

  @override
  Widget build(BuildContext context) {
    final today = DateTime.now().weekday - 1;
    final isToday = dayIndex == today;

    return Container(
      margin: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
      padding: const EdgeInsets.all(16),
      decoration: BoxDecoration(
        color: isToday ? const Color(0xFFFEFCE8) : Colors.white,
        borderRadius: BorderRadius.circular(16),
        border: isToday ? Border.all(color: const Color(0xFFFCD34D), width: 2) : null,
        boxShadow: [BoxShadow(color: const Color(0xFF8B9CF7).withAlpha(8), blurRadius: 4, offset: const Offset(0, 2))],
      ),
      child: Row(children: [
        Container(
          width: 40,
          height: 40,
          decoration: BoxDecoration(
            color: isDone ? const Color(0xFFDCFCE7) : isRest ? const Color(0xFFF3F4F6) : const Color(0xFFF0F2FF),
            borderRadius: BorderRadius.circular(12),
          ),
          child: isDone
              ? const Icon(Icons.check, size: 20, color: Color(0xFF43A047))
              : isRest
                  ? const Icon(Icons.coffee, size: 20, color: Color(0xFF999999))
                  : const Icon(Icons.directions_run, size: 20, color: Color(0xFF8B9CF7)),
        ),
        const SizedBox(width: 12),
        Expanded(
          child: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
            Row(children: [
              Text(day, style: TextStyle(fontSize: 16, fontWeight: isToday ? FontWeight.w600 : FontWeight.w500)),
              if (isToday) const SizedBox(width: 4),
              if (isToday) const Text('(今天)', style: TextStyle(fontSize: 12, color: Color(0xFFF59E0B))),
            ]),
            const SizedBox(height: 4),
            Text(
              isRest ? '休息日，好好休息' : '$exerciseType $duration分钟',
              style: TextStyle(fontSize: 14, color: Colors.grey[500]),
            ),
          ]),
        ),
        if (!isRest && !isDone)
          ElevatedButton(
            onPressed: onCheckIn,
            child: const Text('打卡'),
            style: ElevatedButton.styleFrom(
              backgroundColor: const Color(0xFF8B9CF7),
              foregroundColor: Colors.white,
              shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(20)),
              padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 10),
            ),
          ),
        if (isDone)
          const Text('已完成', style: TextStyle(fontSize: 14, color: Color(0xFF43A047))),
      ]),
    );
  }
}

/// 复查列表
class FollowUpListPage extends ConsumerWidget {
  const FollowUpListPage({super.key});
  @override Widget build(BuildContext context, WidgetRef ref) {
    return Scaffold(
      appBar: AppBar(title: const Text('复查随访'), centerTitle: true),
      floatingActionButton: FloatingActionButton(
        onPressed: () => _showAddDialog(context),
        child: const Icon(Icons.add),
        backgroundColor: const Color(0xFF8B9CF7),
      ),
      body: ListView(children: _mockFollowUps.map((item) => _FollowUpItem(item: item)).toList()),
    );
  }

  void _showAddDialog(BuildContext context) {
    showDialog(
      context: context,
      builder: (ctx) => AlertDialog(
        title: const Text('添加复查提醒'),
        content: Column(mainAxisSize: MainAxisSize.min, children: [
          TextField(decoration: const InputDecoration(labelText: '医院名称')),
          const SizedBox(height: 12),
          TextField(decoration: const InputDecoration(labelText: '科室')),
          const SizedBox(height: 12),
          TextField(decoration: const InputDecoration(labelText: '日期', hintText: 'YYYY-MM-DD')),
          const SizedBox(height: 12),
          TextField(decoration: const InputDecoration(labelText: '备注')),
        ]),
        actions: [
          TextButton(onPressed: () => Navigator.pop(ctx), child: const Text('取消')),
          TextButton(
            onPressed: () {
              Navigator.pop(ctx);
              ScaffoldMessenger.of(context).showSnackBar(const SnackBar(
                content: Text('复查提醒已添加 ✅'),
                backgroundColor: Color(0xFF8B9CF7),
              ));
            },
            child: const Text('保存'),
          ),
        ],
      ),
    );
  }
}

final _mockFollowUps = [
  {'id': '1', 'hospital': '协和医院', 'department': '心内科', 'date': '2025-01-20', 'type': '复诊', 'status': 'upcoming', 'notes': '常规复查，带齐病历'},
  {'id': '2', 'hospital': '人民医院', 'department': '骨科', 'date': '2025-01-25', 'type': '复查', 'status': 'upcoming', 'notes': '术后3个月复查'},
  {'id': '3', 'hospital': '协和医院', 'department': '心内科', 'date': '2024-12-15', 'type': '复诊', 'status': 'completed', 'notes': '已完成'},
];

class _FollowUpItem extends StatelessWidget {
  final Map<String, dynamic> item;
  const _FollowUpItem({required this.item});

  @override
  Widget build(BuildContext context) {
    final isCompleted = item['status'] == 'completed';
    return Container(
      margin: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
      padding: const EdgeInsets.all(16),
      decoration: BoxDecoration(
        color: Colors.white,
        borderRadius: BorderRadius.circular(16),
        boxShadow: [BoxShadow(color: const Color(0xFF8B9CF7).withAlpha(10), blurRadius: 4, offset: const Offset(0, 2))],
      ),
      child: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
        Row(children: [
          Container(
            padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
            decoration: BoxDecoration(
              color: isCompleted ? const Color(0xFFDCFCE7) : const Color(0xFFFEFCE8),
              borderRadius: BorderRadius.circular(8),
            ),
            child: Text(
              isCompleted ? '已完成' : '待就诊',
              style: TextStyle(fontSize: 12, color: isCompleted ? const Color(0xFF43A047) : const Color(0xFFF59E0B)),
            ),
          ),
          const SizedBox(width: 8),
          Text(item['type']?.toString() ?? '', style: TextStyle(fontSize: 14, color: Colors.grey[500])),
        ]),
        const SizedBox(height: 12),
        Text(item['hospital']?.toString() ?? '', style: const TextStyle(fontSize: 16, fontWeight: FontWeight.w600)),
        const SizedBox(height: 4),
        Text('${item['department']} · ${item['date']}', style: TextStyle(fontSize: 14, color: Colors.grey[500])),
        if ((item['notes']?.toString() ?? '').isNotEmpty) ...[
          const SizedBox(height: 8),
          Text(item['notes']?.toString() ?? '', style: TextStyle(fontSize: 14, color: Colors.grey[600])),
        ],
      ]),
    );
  }
}

/// 健康档案
class HealthArchivePage extends ConsumerWidget {
  const HealthArchivePage({super.key});
  @override Widget build(BuildContext context, WidgetRef ref) {
    final service = ref.watch(userServiceProvider);
    return Scaffold(
      appBar: AppBar(title: const Text('健康档案')),
      body: FutureBuilder<Map<String, dynamic>?>(
        future: service.getHealthArchive(),
        builder: (ctx, snap) {
          if (snap.connectionState == ConnectionState.waiting) return const Center(child: CircularProgressIndicator());
          final data = snap.data;
          if (data == null || data.isEmpty) return _empty(context, '暂无健康档案', '可通过 AI 对话或手动填写');
          return ListView(
            padding: const EdgeInsets.all(16),
            children: [
              _Section(title: '基本信息', children: [
                _Field('诊断', data['diagnosis']), _Field('手术类型', data['surgeryType']),
                _Field('手术日期', data['surgeryDate']),
              ]),
              _Section(title: '病史与限制', children: [
                _Field('过敏史', _listStr(data['allergies'])),
                _Field('饮食限制', _listStr(data['dietRestrictions'])),
                _Field('慢性病史', _listStr(data['chronicDiseases'])),
                _Field('家族病史', data['familyHistory']),
              ]),
            ],
          );
        },
      ),
    );
  }
  String _listStr(dynamic list) => list is List ? list.join('、') : '--';
}

class _Section extends StatelessWidget {
  final String title; final List<Widget> children;
  const _Section({required this.title, required this.children});
  @override Widget build(BuildContext context) => Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
    Padding(padding: const EdgeInsets.only(bottom: 8, top: 16), child: Text(title, style: const TextStyle(fontSize: 18, fontWeight: FontWeight.w600, color: Color(0xFF1A1A1A)))),
    ...children,
  ]);
}

class _Field extends StatelessWidget {
  final String label; final String? value;
  const _Field(this.label, this.value);
  @override Widget build(BuildContext context) => Padding(
    padding: const EdgeInsets.only(bottom: 6),
    child: Row(crossAxisAlignment: CrossAxisAlignment.start, children: [
      SizedBox(width: 80, child: Text('$label：', style: const TextStyle(fontSize: 14, color: Color(0xFF666666)))),
      Expanded(child: Text(value ?? '--', style: const TextStyle(fontSize: 14, color: Color(0xFF1A1A1A)))),
    ]),
  );
}

/// 编辑资料
class EditProfilePage extends ConsumerStatefulWidget {
  const EditProfilePage({super.key});
  @override ConsumerState<EditProfilePage> createState() => _EditProfilePageState();
}
class _EditProfilePageState extends ConsumerState<EditProfilePage> {
  final _nameCtrl = TextEditingController(); final _genderCtrl = TextEditingController(); final _birthCtrl = TextEditingController();
  @override void dispose() { _nameCtrl.dispose(); _genderCtrl.dispose(); _birthCtrl.dispose(); super.dispose(); }
  @override void initState() { super.initState(); WidgetsBinding.instance.addPostFrameCallback((_) => _load()); }
  void _load() async {
    final p = await ref.read(userServiceProvider).getProfile();
    if (p != null && mounted) {
      setState(() { _nameCtrl.text = p['name'] ?? ''; _genderCtrl.text = p['gender'] ?? ''; _birthCtrl.text = p['birthDate'] ?? ''; });
    }
  }
  Future<void> _save() async {
    await ref.read(userServiceProvider).updateProfile(name: _nameCtrl.text, gender: _genderCtrl.text, birthDate: _birthCtrl.text);
    if (mounted) Navigator.pop(context);
  }
  @override Widget build(BuildContext context) => Scaffold(
    appBar: AppBar(title: const Text('编辑资料')),
    body: ListView(padding: const EdgeInsets.all(16), children: [
      TextField(controller: _nameCtrl, decoration: const InputDecoration(labelText: '姓名')),
      const SizedBox(height: 16), TextField(controller: _genderCtrl, decoration: const InputDecoration(labelText: '性别')),
      const SizedBox(height: 16), TextField(controller: _birthCtrl, decoration: const InputDecoration(labelText: '出生日期', hintText: 'YYYY-MM-DD')),
      const SizedBox(height: 32), SizedBox(width: double.infinity, child: ElevatedButton(onPressed: _save, child: const Text('保存'))),
    ]),
  );
}

/// 健康日历
class HealthCalendarPage extends ConsumerStatefulWidget {
  const HealthCalendarPage({super.key});
  @override ConsumerState<HealthCalendarPage> createState() => _HealthCalendarPageState();
}

class _HealthCalendarPageState extends ConsumerState<HealthCalendarPage> {
  DateTime _currentMonth = DateTime.now();

  @override Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('健康日历'), centerTitle: true),
      body: Column(children: [
        _buildMonthHeader(),
        _buildWeekdayHeader(),
        _buildCalendarGrid(),
        const SizedBox(height: 16),
        _buildLegend(),
      ]),
    );
  }

  Widget _buildMonthHeader() {
    return Row(
      mainAxisAlignment: MainAxisAlignment.spaceBetween,
      children: [
        IconButton(
          icon: const Icon(Icons.chevron_left, size: 32),
          onPressed: () => setState(() => _currentMonth = DateTime(_currentMonth.year, _currentMonth.month - 1)),
        ),
        Text(
          '${_currentMonth.year}年${_currentMonth.month}月',
          style: const TextStyle(fontSize: 18, fontWeight: FontWeight.w600),
        ),
        IconButton(
          icon: const Icon(Icons.chevron_right, size: 32),
          onPressed: () => setState(() => _currentMonth = DateTime(_currentMonth.year, _currentMonth.month + 1)),
        ),
      ],
    );
  }

  Widget _buildWeekdayHeader() {
    const weekdays = ['日', '一', '二', '三', '四', '五', '六'];
    return Row(children: weekdays.map((day) => Expanded(
      child: Center(child: Text(day, style: TextStyle(fontSize: 14, color: Colors.grey[500]))),
    )).toList());
  }

  Widget _buildCalendarGrid() {
    final firstDay = DateTime(_currentMonth.year, _currentMonth.month, 1);
    final lastDay = DateTime(_currentMonth.year, _currentMonth.month + 1, 0);
    final daysInMonth = lastDay.day;
    final startWeekday = firstDay.weekday % 7;

    final days = List.generate(42, (i) {
      final dayIndex = i - startWeekday;
      if (dayIndex < 0 || dayIndex >= daysInMonth) return null;
      return dayIndex + 1;
    });

    return Expanded(
      child: GridView.builder(
        gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(crossAxisCount: 7),
        itemCount: 42,
        itemBuilder: (ctx, i) {
          final day = days[i];
          if (day == null) return const SizedBox();
          return _buildDayCell(day);
        },
      ),
    );
  }

  Widget _buildDayCell(int day) {
    final date = DateTime(_currentMonth.year, _currentMonth.month, day);
    final today = DateTime.now();
    final isToday = date.year == today.year && date.month == today.month && date.day == today.day;
    final events = _getEvents(date);

    return Container(
      decoration: isToday ? BoxDecoration(
        color: const Color(0xFF8B9CF7),
        borderRadius: BorderRadius.circular(20),
      ) : null,
      child: Stack(
        alignment: Alignment.center,
        children: [
          Text(
            '$day',
            style: TextStyle(
              fontSize: 16,
              color: isToday ? Colors.white : Colors.black,
              fontWeight: isToday ? FontWeight.w600 : FontWeight.normal,
            ),
          ),
          if (events.isNotEmpty)
            Positioned(
              bottom: 4,
              child: Row(children: events.map((type) => Container(
                width: 6,
                height: 6,
                margin: const EdgeInsets.symmetric(horizontal: 1),
                decoration: BoxDecoration(
                  color: _getEventColor(type),
                  borderRadius: BorderRadius.circular(3),
                ),
              )).toList()),
            ),
        ],
      ),
    );
  }

  List<String> _getEvents(DateTime date) {
    final events = <String>[];
    if (date.day == 5 || date.day == 12 || date.day == 19 || date.day == 26) events.add('medication');
    if (date.day == 8 || date.day == 15 || date.day == 22 || date.day == 29) events.add('exercise');
    if (date.day == 20) events.add('followup');
    return events;
  }

  Color _getEventColor(String type) {
    switch (type) {
      case 'medication': return const Color(0xFF8B9CF7);
      case 'exercise': return const Color(0xFF43A047);
      case 'followup': return const Color(0xFFF59E0B);
      default: return Colors.grey;
    }
  }

  Widget _buildLegend() {
    final items = [
      {'color': const Color(0xFF8B9CF7), 'label': '用药提醒'},
      {'color': const Color(0xFF43A047), 'label': '运动计划'},
      {'color': const Color(0xFFF59E0B), 'label': '复查随访'},
    ];
    return Container(
      padding: const EdgeInsets.symmetric(horizontal: 16),
      child: Row(mainAxisAlignment: MainAxisAlignment.center, children: items.map((item) => Row(children: [
        Container(width: 10, height: 10, decoration: BoxDecoration(color: item['color'] as Color, borderRadius: BorderRadius.circular(5))),
        const SizedBox(width: 4),
        Text(item['label'] as String, style: TextStyle(fontSize: 12, color: Colors.grey[600])),
        const SizedBox(width: 20),
      ])).toList()),
    );
  }
}

/// 静态文本页
class StaticTextPage extends ConsumerWidget {
  final String type;
  const StaticTextPage({super.key, required this.type});
  @override Widget build(BuildContext context, WidgetRef ref) {
    final titles = {'privacy': '隐私协议', 'terms': '服务协议', 'about': '关于健康管家'};
    final contents = {
      'privacy': '''## 隐私政策

更新日期：2026年1月1日

### 一、信息收集
我们收集以下类型的信息：
- 账户信息：手机号、昵称、头像（您主动提供）
- 健康数据：血压、心率、血糖、血氧、体重等健康指标记录
- 用药信息：药品名称、剂量、服药时间等用药计划数据
- 饮食记录：通过拍照或手动录入的饮食数据
- 设备信息：设备型号、操作系统版本（用于适配优化）
- 日志信息：App 使用情况、崩溃报告

### 二、信息使用
我们使用您的信息用于以下目的：
- 提供和改进健康管理服务
- AI 健康分析和个性化建议
- 用药提醒和复查通知推送
- App 功能优化和问题修复

### 三、信息保护
- 所有健康数据均采用 HTTPS 加密传输
- 数据存储于安全服务器，采用行业标准的加密措施
- 我们不会向任何第三方出售、出租或共享您的个人健康数据
- 医生仅可查看其签约患者的数据，且需经过您的授权

### 四、信息保留
- 对话记录保留 30 天后自动删除
- 您可以随时删除自己的健康数据和对话记录
- 账号注销后，所有数据将在 7 天内永久删除

### 五、您的权利
- 查看和导出您的个人数据
- 修改不准确的个人信息
- 删除不需要的数据
- 注销账号并清除所有数据
- 关闭推送通知

### 六、联系我们
如有任何关于隐私的问题，请联系：
邮箱：privacy@healthbutler.com
电话：400-xxx-xxxx''',
      'about': '''## 关于健康管家

版本：v1.0.0 (Build 20260101)

### 产品介绍
健康管家是一款面向心脏术后康复患者的私人 AI 健康管理应用。以对话为核心交互方式，患者可以通过自然语言记录健康数据、获取饮食运动建议、管理用药、解读检查报告。

### 核心功能
- AI 智能问诊：基于大语言模型的健康咨询服务
- 健康数据管理：血压、心率、血糖、血氧、体重的记录与趋势分析
- 智能用药管理：AI 解析处方，自动生成用药计划和提醒
- 饮食识别分析：拍照即可识别食物种类、估算热量营养素
- 报告智能解读：上传检查报告，AI 自动提取指标并预解读
- 运动计划管理：制定和追踪每日运动目标
- 在线医生问诊：与签约医生进行远程咨询

### 开发团队
由专业医疗团队与 AI 技术团队联合打造。

### 技术支持
如遇到问题或有建议，请通过以下方式联系我们：
- 在线客服：App 内「设置」→「意见反馈」
- 客服热线：400-xxx-xxxx（工作日 9:00-18:00）

### 版权声明
© 2025-2026 健康管家团队。保留所有权利。
本软件受中华人民共和国著作权法保护。''',
    };
    return Scaffold(
      appBar: AppBar(
        backgroundColor: Colors.white,
        elevation: 0,
        leading: IconButton(icon: const Icon(Icons.chevron_left), onPressed: () => popRoute(ref)),
        title: Text(titles[type] ?? '', style: const TextStyle(color: Color(0xFF1A1A1A), fontWeight: FontWeight.w600)),
        centerTitle: true,
      ),
      body: SingleChildScrollView(
        padding: const EdgeInsets.all(20),
        child: Text(contents[type] ?? '内容加载中...', style: const TextStyle(fontSize: 14, height: 1.8, color: Color(0xFF333333))),
      ),
    );
  }
}

/// 设备管理（占位）
class DeviceManagementPage extends ConsumerWidget {
  const DeviceManagementPage({super.key});
  @override Widget build(BuildContext context, WidgetRef ref) => _empty(context, '设备管理', '暂无绑定设备');
}

Widget _empty(BuildContext context, String title, String subtitle) => Scaffold(
  appBar: AppBar(title: Text(title)),
  body: Center(child: Column(mainAxisSize: MainAxisSize.min, children: [
    Icon(Icons.inbox_outlined, size: 64, color: Colors.grey[300]),
    const SizedBox(height: 12), Text(subtitle, style: Theme.of(context).textTheme.bodyMedium),
  ])),
);