去掉服务器同步

lib/pages/note/note_form_page.dart

@@ -524,7 +524,7 @@ class _NoteFormPageState extends State<NoteFormPage> {
   Future<void> _showAddTagDialog() async {
     final controller = TextEditingController();
 
-    // 从 tags 表获取已有标签（sync 模式下走服务端 API）
+    // 从 tags 表获取已有标签
     final provider = context.read<AppProvider>();
     final tagRows = await provider.getTags('note_tag');
     final allTags = tagRows.map((t) => t['name'] as String).toSet();

lib/pages/sync/cloud_sync_page.dart

@@ -1,6 +1,5 @@
 import 'package:flutter/material.dart';
 import 'webdav_sync_page.dart';
-import 'server_sync_page.dart';
 
 /// 云备份主页面 - 选择备份方式
 class CloudSyncPage extends StatelessWidget {
@@ -25,15 +24,6 @@ class CloudSyncPage extends StatelessWidget {
             onTap: () =>
                 Navigator.push(context, MaterialPageRoute(builder: (_) => const WebDAVSyncPage())),
           ),
-          const SizedBox(height: 12),
-          _buildOption(
-            colors: colors,
-            icon: Icons.sync_outlined,
-            title: '服务端实时同步',
-            subtitle: '自建服务端，多设备数据实时同步',
-            onTap: () =>
-                Navigator.push(context, MaterialPageRoute(builder: (_) => const ServerSyncPage())),
-          ),
           const SizedBox(height: 28),
           _buildInfo(colors),
         ],
@@ -142,11 +132,7 @@ class CloudSyncPage extends StatelessWidget {
         const SizedBox(height: 14),
         _infoItem(colors, 'WebDAV 备份：将数据备份到支持 WebDAV 的云盘'),
         const SizedBox(height: 8),
-        _infoItem(colors, '服务端实时同步：通过自建服务端实现多设备实时同步'),
-        const SizedBox(height: 8),
-        _infoItem(colors, '激活码由服务端管理员在管理后台生成'),
-        const SizedBox(height: 8),
-        _infoItem(colors, '建议定期备份 + 实时同步配合使用'),
+        _infoItem(colors, '建议定期备份到本地或云盘'),
       ]),
     );
   }

lib/pages/sync/server_sync_page.dart

@@ -1,422 +0,0 @@
-import 'dart:async';
-import 'package:flutter/material.dart';
-import 'package:provider/provider.dart';
-import '../../providers/app_provider.dart';
-import '../../utils/user_prefs.dart';
-import '../../utils/sync/server_sync_service.dart';
-import '../../utils/sync/server_data_service.dart';
-import '../../utils/toast_util.dart';
-
-/// 服务端实时同步页面
-class ServerSyncPage extends StatefulWidget {
-  const ServerSyncPage({super.key});
-
-  @override
-  State<ServerSyncPage> createState() => _ServerSyncPageState();
-}
-
-class _ServerSyncPageState extends State<ServerSyncPage> {
-  final UserPrefs _prefs = UserPrefs();
-  final _urlController = TextEditingController();
-  final _codeController = TextEditingController();
-
-  bool _syncEnabled = false;
-  bool _isActivated = false;
-  bool _isChecking = false;
-  String _expiresText = '';
-  Timer? _statusTimer;
-
-  @override
-  void initState() {
-    super.initState();
-    _loadSettings();
-  }
-
-  @override
-  void dispose() {
-    _urlController.dispose();
-    _codeController.dispose();
-    _statusTimer?.cancel();
-    super.dispose();
-  }
-
-  void _loadSettings() {
-    final url = _prefs.syncServerUrl;
-    final code = _prefs.syncActivationCode;
-    _urlController.text = url;
-    _codeController.text = code;
-    _isActivated = url.isNotEmpty && code.isNotEmpty;
-    _syncEnabled = _isActivated && _prefs.syncEnabled;
-    _updateExpiresText();
-    if (_isActivated) {
-      _startStatusPolling();
-      _checkStatus(); // 立即向服务端验证
-    }
-  }
-
-  void _updateExpiresText() {
-    if (_prefs.syncIsPermanent) {
-      _expiresText = '永久有效';
-    } else {
-      final exp = _prefs.syncExpiresAt;
-      if (exp.isNotEmpty) {
-        try {
-          final dt = DateTime.parse(exp).add(const Duration(hours: 8));
-          _expiresText = '有效期至 ${dt.year}-${dt.month.toString().padLeft(2, '0')}-${dt.day.toString().padLeft(2, '0')} '
-              '${dt.hour.toString().padLeft(2, '0')}:${dt.minute.toString().padLeft(2, '0')}';
-        } catch (_) {
-          _expiresText = '有效期至 $exp';
-        }
-      } else {
-        _expiresText = '';
-      }
-    }
-  }
-
-  void _startStatusPolling() {
-    _statusTimer?.cancel();
-    _statusTimer = Timer.periodic(const Duration(minutes: 1), (_) => _checkStatus());
-  }
-
-  Future<void> _checkStatus() async {
-    if (!_isActivated) return;
-    final result = await ServerSyncService.instance.checkActivation();
-    if (!mounted) return;
-    if (result == null || result['valid'] != true) {
-      await _prefs.setSyncEnabled(false);
-      setState(() {
-        _isActivated = false;
-        _syncEnabled = false;
-        _expiresText = '激活码已失效';
-      });
-      if (mounted) ToastUtil.show(context, '激活码已失效，同步已关闭');
-    } else {
-      await _prefs.setSyncExpiresAt(result['expires_at'] ?? '');
-      await _prefs.setSyncIsPermanent(result['is_permanent'] == true);
-      _updateExpiresText();
-    }
-  }
-
-  Future<void> _checkActivation() async {
-    final url = _urlController.text.trim();
-    final code = _codeController.text.trim().toUpperCase();
-    if (url.isEmpty || code.isEmpty) {
-      ToastUtil.show(context, '请输入服务器地址和激活码');
-      return;
-    }
-    setState(() => _isChecking = true);
-    await _prefs.setSyncServerUrl(url);
-    await _prefs.setSyncActivationCode(code);
-
-    final result = await ServerSyncService.instance.checkActivation();
-    if (!mounted) return;
-    setState(() => _isChecking = false);
-
-    if (result != null && result['valid'] == true) {
-      _isActivated = true;
-      await _prefs.setSyncExpiresAt(result['expires_at'] ?? '');
-      await _prefs.setSyncIsPermanent(result['is_permanent'] == true);
-      _updateExpiresText();
-      _startStatusPolling();
-      await _prefs.setSyncEnabled(true);
-      _syncEnabled = true;
-      await ServerSyncService.instance.syncWithServer();
-      if (mounted) ToastUtil.show(context, '激活成功，实时同步已开启');
-    } else {
-      final error = result?['error'] ?? '激活失败';
-      if (mounted) ToastUtil.show(context, error.toString());
-    }
-  }
-
-  Future<void> _toggleSync(bool value) async {
-    if (value && _isActivated) {
-      // 开启同步：合并本地与服务端数据
-      await _prefs.setSyncEnabled(true);
-      if (!mounted) return;
-      setState(() => _syncEnabled = true);
-      if (mounted) ToastUtil.show(context, '正在同步数据...');
-      await ServerSyncService.instance.syncWithServer();
-      final provider = context.read<AppProvider>();
-      await provider.loadMovies();
-      await provider.loadBooks();
-      await provider.loadNotes();
-      if (mounted) ToastUtil.show(context, '同步已开启，数据已合并');
-    } else {
-      // 关闭同步：从服务器下载数据库和图片到本地
-      if (mounted) ToastUtil.show(context, '正在从服务器下载数据...');
-      final success = await ServerSyncService.instance.downloadToLocal();
-      await _prefs.setSyncEnabled(false);
-      if (!mounted) return;
-      setState(() => _syncEnabled = false);
-      final provider = context.read<AppProvider>();
-      await provider.loadMovies();
-      await provider.loadBooks();
-      await provider.loadNotes();
-      if (mounted) {
-        ToastUtil.show(context, success ? '数据已下载到本地' : '服务器无备份，保留本地数据');
-      }
-    }
-  }
-
-  Future<void> _disconnect() async {
-    final confirm = await showDialog<bool>(
-      context: context,
-      builder: (ctx) {
-        final colors = Theme.of(ctx).colorScheme;
-        return AlertDialog(
-          backgroundColor: colors.surface,
-          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)),
-          title: const Text('断开连接', style: TextStyle(fontSize: 18, fontWeight: FontWeight.w600)),
-          content: Text('将清除服务器配置和激活信息，确定要断开吗？',
-              style: TextStyle(fontSize: 14, color: colors.onSurface.withValues(alpha: 0.6))),
-          actions: [
-            TextButton(
-                onPressed: () => Navigator.pop(ctx, false),
-                child: Text('取消', style: TextStyle(color: colors.onSurface.withValues(alpha: 0.4)))),
-            TextButton(
-                onPressed: () => Navigator.pop(ctx, true),
-                child: const Text('确定', style: TextStyle(color: Color(0xFFE53935)))),
-          ],
-        );
-      },
-    );
-    if (confirm != true) return;
-
-    _statusTimer?.cancel();
-    await _toggleSync(false);
-    await _prefs.setSyncServerUrl('');
-    await _prefs.setSyncActivationCode('');
-    await _prefs.setSyncExpiresAt('');
-    await _prefs.setSyncIsPermanent(false);
-    await _prefs.setSyncEnabled(false);
-
-    setState(() {
-      _isActivated = false;
-      _syncEnabled = false;
-      _expiresText = '';
-      _urlController.clear();
-      _codeController.clear();
-    });
-    if (mounted) ToastUtil.show(context, '已断开连接');
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    final colors = Theme.of(context).colorScheme;
-    return Scaffold(
-      backgroundColor: colors.surfaceContainerHigh,
-      appBar: AppBar(title: const Text('服务端实时同步')),
-      body: ListView(padding: const EdgeInsets.all(20), children: [
-        // 状态卡片
-        Container(
-          padding: const EdgeInsets.all(20),
-          decoration: BoxDecoration(
-            color: colors.surface,
-            borderRadius: BorderRadius.circular(16),
-            boxShadow: [
-              BoxShadow(color: Colors.black.withValues(alpha: 0.03), blurRadius: 8, offset: const Offset(0, 2))
-            ],
-          ),
-          child: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
-            Row(children: [
-              Container(
-                  width: 10,
-                  height: 10,
-                  decoration: BoxDecoration(
-                      color: _isActivated
-                          ? const Color(0xFF66BB6A)
-                          : colors.onSurface.withValues(alpha: 0.15),
-                      shape: BoxShape.circle)),
-              const SizedBox(width: 10),
-              Text(_isActivated ? '已激活' : '未激活',
-                  style: TextStyle(
-                      fontSize: 16,
-                      fontWeight: FontWeight.w600,
-                      color: _isActivated
-                          ? const Color(0xFF66BB6A)
-                          : colors.onSurface.withValues(alpha: 0.3))),
-              const Spacer(),
-              if (_isActivated)
-                GestureDetector(
-                  onTap: _disconnect,
-                  child: Container(
-                      padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 5),
-                      decoration: BoxDecoration(
-                          color: colors.surfaceContainerHighest, borderRadius: BorderRadius.circular(6)),
-                      child: const Text('断开',
-                          style: TextStyle(fontSize: 12, color: Color(0xFFE57373)))),
-                ),
-            ]),
-            const SizedBox(height: 20),
-            Text('服务器地址',
-                style: TextStyle(fontSize: 12, color: colors.onSurface.withValues(alpha: 0.4))),
-            const SizedBox(height: 6),
-            TextField(
-              controller: _urlController,
-              style: TextStyle(fontSize: 14, color: colors.onSurface),
-              decoration: _inputDeco(colors, '例: http://192.168.1.100:5000'),
-            ),
-            const SizedBox(height: 14),
-            Text('激活码',
-                style: TextStyle(fontSize: 12, color: colors.onSurface.withValues(alpha: 0.4))),
-            const SizedBox(height: 6),
-            TextField(
-                controller: _codeController,
-                style: TextStyle(fontSize: 14, color: colors.onSurface),
-                textCapitalization: TextCapitalization.characters,
-                decoration: _inputDeco(colors, '例: MK-A1B2C3D4E5F6')),
-            const SizedBox(height: 16),
-            SizedBox(
-              width: double.infinity,
-              child: ElevatedButton(
-                onPressed: _isChecking ? null : _checkActivation,
-                style: ElevatedButton.styleFrom(
-                    backgroundColor: colors.primary,
-                    foregroundColor: colors.onPrimary,
-                    disabledBackgroundColor: colors.onSurface.withValues(alpha: 0.15),
-                    elevation: 0,
-                    shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(10)),
-                    padding: const EdgeInsets.symmetric(vertical: 13)),
-                child: _isChecking
-                    ? SizedBox(
-                        width: 20,
-                        height: 20,
-                        child: CircularProgressIndicator(strokeWidth: 2, color: colors.onPrimary))
-                    : Text(_isActivated ? '重新验证' : '验证激活',
-                        style: const TextStyle(fontSize: 14, fontWeight: FontWeight.w600)),
-              ),
-            ),
-            if (_expiresText.isNotEmpty) ...[
-              const SizedBox(height: 12),
-              Center(
-                  child: Row(mainAxisSize: MainAxisSize.min, children: [
-                Icon(Icons.access_time,
-                    size: 14,
-                    color: _prefs.syncIsPermanent
-                        ? const Color(0xFF66BB6A)
-                        : const Color(0xFFFF9800)),
-                const SizedBox(width: 6),
-                Text(_expiresText,
-                    style: TextStyle(
-                        fontSize: 13,
-                        fontWeight: FontWeight.w500,
-                        color: _prefs.syncIsPermanent
-                            ? const Color(0xFF66BB6A)
-                            : const Color(0xFFFF9800))),
-              ])),
-            ],
-          ]),
-        ),
-        const SizedBox(height: 16),
-        // 同步开关
-        Container(
-          padding: const EdgeInsets.all(20),
-          decoration: BoxDecoration(
-              color: colors.surface,
-              borderRadius: BorderRadius.circular(16),
-              boxShadow: [
-                BoxShadow(
-                    color: Colors.black.withValues(alpha: 0.03), blurRadius: 8, offset: const Offset(0, 2))
-              ]),
-          child: Row(children: [
-            Container(
-                width: 44,
-                height: 44,
-                decoration: BoxDecoration(
-                    color: colors.surfaceContainerHighest, borderRadius: BorderRadius.circular(10)),
-                child: Icon(_syncEnabled ? Icons.sync : Icons.sync_disabled,
-                    color: _syncEnabled
-                        ? colors.primary
-                        : colors.onSurface.withValues(alpha: 0.25),
-                    size: 22)),
-            const SizedBox(width: 14),
-            Expanded(
-                child: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
-              Text('服务端实时同步',
-                  style: TextStyle(
-                      fontSize: 15, fontWeight: FontWeight.w500, color: colors.onSurface)),
-              const SizedBox(height: 2),
-              Text(_syncEnabled ? '使用服务端数据，多设备实时共享' : '关闭后下载数据到本地使用',
-                  style: TextStyle(fontSize: 12, color: colors.onSurface.withValues(alpha: 0.3))),
-            ])),
-            Switch(
-                value: _syncEnabled,
-                onChanged: _isActivated ? _toggleSync : null,
-                activeThumbColor: colors.primary,
-                activeTrackColor: colors.primary.withValues(alpha: 0.3),
-                inactiveThumbColor: colors.surface,
-                inactiveTrackColor: colors.outline),
-          ]),
-        ),
-        const SizedBox(height: 24),
-        // 说明
-        Container(
-          padding: const EdgeInsets.all(18),
-          decoration: BoxDecoration(
-              color: colors.surface,
-              borderRadius: BorderRadius.circular(14),
-              boxShadow: [
-                BoxShadow(
-                    color: Colors.black.withValues(alpha: 0.03), blurRadius: 6, offset: const Offset(0, 2))
-              ]),
-          child: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
-            Row(children: [
-              Container(
-                  width: 36,
-                  height: 36,
-                  decoration: BoxDecoration(
-                      color: colors.surfaceContainerHighest, borderRadius: BorderRadius.circular(8)),
-                  child: Icon(Icons.info_outline,
-                      size: 18, color: colors.onSurface.withValues(alpha: 0.6))),
-              const SizedBox(width: 10),
-              Text('使用说明',
-                  style: TextStyle(
-                      fontSize: 14, fontWeight: FontWeight.w600, color: colors.onSurface)),
-            ]),
-            const SizedBox(height: 14),
-            _infoItem(colors, '1. 在服务端管理后台生成激活码'),
-            const SizedBox(height: 8),
-            _infoItem(colors, '2. 输入服务器地址和激活码完成验证'),
-            const SizedBox(height: 8),
-            _infoItem(colors, '3. 验证通过后自动开启实时同步'),
-            const SizedBox(height: 8),
-            _infoItem(colors, '4. 开启时所有数据通过服务端接口操作'),
-            const SizedBox(height: 8),
-            _infoItem(colors, '5. 关闭时从服务端下载数据到本地使用'),
-          ]),
-        ),
-        const SizedBox(height: 40),
-      ]),
-    );
-  }
-
-  InputDecoration _inputDeco(ColorScheme colors, String hint) {
-    return InputDecoration(
-      hintText: hint,
-      hintStyle: TextStyle(fontSize: 13, color: colors.onSurface.withValues(alpha: 0.25)),
-      filled: true,
-      fillColor: colors.surfaceContainerHigh,
-      contentPadding: const EdgeInsets.symmetric(horizontal: 14, vertical: 12),
-      border: OutlineInputBorder(borderRadius: BorderRadius.circular(10), borderSide: BorderSide.none),
-      focusedBorder: OutlineInputBorder(
-          borderRadius: BorderRadius.circular(10),
-          borderSide: BorderSide(color: colors.primary, width: 1)),
-    );
-  }
-
-  Widget _infoItem(ColorScheme colors, String text) {
-    return Row(crossAxisAlignment: CrossAxisAlignment.start, children: [
-      Container(
-          width: 5,
-          height: 5,
-          margin: const EdgeInsets.only(top: 6),
-          decoration: BoxDecoration(
-              color: colors.onSurface.withValues(alpha: 0.3), shape: BoxShape.circle)),
-      const SizedBox(width: 10),
-      Expanded(
-          child: Text(text,
-              style: TextStyle(
-                  fontSize: 13, color: colors.onSurface.withValues(alpha: 0.5), height: 1.5))),
-    ]);
-  }
-}