feat(leetcode): 添加 LeetCode 解题进度展示

- 在 LeetCodeCard 中添加解题进度卡片，展示用户解题情况
- 在 SettingsScreen 中添加 LeetCode User Slug 配置项
- 更新 authService 以支持保存和加载 LeetCode User Slug
- 优化 LeetCode 数据获取逻辑，同时获取提交记录和解题进度

lib/screens/settings_screen.dart

@@ -12,6 +12,7 @@ class SettingsScreen extends StatefulWidget {
 class _SettingsScreenState extends State<SettingsScreen> {
   final _formKey = GlobalKey<FormState>();
   final _leetcodeController = TextEditingController();
+  final _leetcodeUserSlugController = TextEditingController();
   final _giteaController = TextEditingController();
   final _giteaUsernameController = TextEditingController();
   final _kodboxController = TextEditingController();
@@ -25,6 +26,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
   @override
   void dispose() {
     _leetcodeController.dispose();
+    _leetcodeUserSlugController.dispose();
     _giteaController.dispose();
     _giteaUsernameController.dispose();
     _kodboxController.dispose();
@@ -38,6 +40,8 @@ class _SettingsScreenState extends State<SettingsScreen> {
     setState(() {
       _leetcodeController.text =
           authService.credentials['leetcode_cookie'] ?? '';
+      _leetcodeUserSlugController.text =
+          authService.credentials['leetcode_user_slug'] ?? '';
       _giteaController.text = authService.credentials['gitea_token'] ?? '';
       _giteaUsernameController.text =
           authService.credentials['gitea_username'] ?? '';
@@ -55,6 +59,12 @@ class _SettingsScreenState extends State<SettingsScreen> {
           _leetcodeController.text,
         );
       }
+      if (_leetcodeUserSlugController.text.isNotEmpty) {
+        await authService.saveConfigs(
+          'leetcode_user_slug',
+          _leetcodeUserSlugController.text,
+        );
+      }
       if (_giteaController.text.isNotEmpty) {
         await authService.saveConfigs('gitea_token', _giteaController.text);
       }
@@ -99,6 +109,15 @@ class _SettingsScreenState extends State<SettingsScreen> {
                   ),
                   obscureText: true,
                 ),
+                const SizedBox(height: 16),
+                TextFormField(
+                  controller: _leetcodeUserSlugController,
+                  decoration: const InputDecoration(
+                    labelText: 'User Slug',
+                    hintText: '请输入 LeetCode User Slug',
+                    border: OutlineInputBorder(),
+                  ),
+                ),
               ],
             ),
             const SizedBox(height: 16),

lib/services/auth_service.dart

@@ -18,12 +18,17 @@ class AuthService extends ChangeNotifier {
 
   Future<void> loadConfigs() async {
     final leetcodeCookie = await _storage.read(key: 'leetcode_cookie');
+    final leetcodeUserSlug = await _storage.read(key: 'leetcode_user_slug');
     final giteaToken = await _storage.read(key: 'gitea_token');
     final giteaUserName = await _storage.read(key: 'gitea_username');
     final kodboxToken = await _storage.read(key: 'kodbox_token');
+
     if (leetcodeCookie != null) {
       _credentials['leetcode_cookie'] = leetcodeCookie;
     }
+    if (leetcodeUserSlug != null) {
+      _credentials['leetcode_user_slug'] = leetcodeUserSlug;
+    }
     if (giteaToken != null) {
       _credentials['gitea_token'] = giteaToken;
     }

lib/widgets/leetcode_card.dart

@@ -14,10 +14,11 @@ class LeetCodeCard extends StatefulWidget {
 
 class _LeetCodeCardState extends State<LeetCodeCard> {
   List<dynamic> _submissions = [];
+  Map<String, dynamic>? _progress;
   bool _isLoading = false;
   String? _error;
 
-  Future<void> _fetchSubmissions() async {
+  Future<void> _fetchData() async {
     setState(() {
       _isLoading = true;
       _error = null;
@@ -26,12 +27,17 @@ class _LeetCodeCardState extends State<LeetCodeCard> {
     try {
       final authService = Provider.of<AuthService>(context, listen: false);
       final cookie = authService.credentials['leetcode_cookie'];
+      final userSlug = authService.credentials['leetcode_user_slug'];
 
       if (cookie == null || cookie.isEmpty) {
         throw Exception('未配置 LeetCode Cookie');
       }
+      if (userSlug == null || userSlug.isEmpty) {
+        throw Exception('未配置 LeetCode User Slug');
+      }
 
-      final response = await http.post(
+      // 获取提交记录
+      final submissionsResponse = await http.post(
         Uri.parse('https://leetcode.cn/graphql/noj-go/'),
         headers: {'Content-Type': 'application/json', 'Cookie': cookie},
         body: jsonEncode({
@@ -49,19 +55,56 @@ class _LeetCodeCardState extends State<LeetCodeCard> {
               }
             }
           ''',
-          'variables': {'userSlug': 'keen-wilsonv9s'},
+          'variables': {'userSlug': userSlug},
           'operationName': 'recentAcSubmissions',
         }),
       );
 
-      if (response.statusCode == 200) {
-        final data = jsonDecode(response.body);
+      // 获取进度数据
+      final progressResponse = await http.post(
+        Uri.parse('https://leetcode.cn/graphql/'),
+        headers: {'Content-Type': 'application/json', 'Cookie': cookie},
+        body: jsonEncode({
+          'query': '''
+            query userProfileUserQuestionProgressV2(\$userSlug: String!) {
+              userProfileUserQuestionProgressV2(userSlug: \$userSlug) {
+                numAcceptedQuestions {
+                  count
+                  difficulty
+                }
+                numFailedQuestions {
+                  count
+                  difficulty
+                }
+                numUntouchedQuestions {
+                  count
+                  difficulty
+                }
+                userSessionBeatsPercentage {
+                  difficulty
+                  percentage
+                }
+                totalQuestionBeatsPercentage
+              }
+            }
+          ''',
+          'variables': {'userSlug': userSlug},
+          'operationName': 'userProfileUserQuestionProgressV2',
+        }),
+      );
+
+      if (submissionsResponse.statusCode == 200 &&
+          progressResponse.statusCode == 200) {
+        final submissionsData = jsonDecode(submissionsResponse.body);
+        final progressData = jsonDecode(progressResponse.body);
+
         setState(() {
-          _submissions = data['data']['recentACSubmissions'];
+          _submissions = submissionsData['data']['recentACSubmissions'];
+          _progress = progressData['data']['userProfileUserQuestionProgressV2'];
           _isLoading = false;
         });
       } else {
-        throw Exception('请求失败: ${response.statusCode}');
+        throw Exception('请求失败: ${submissionsResponse.statusCode}');
       }
     } catch (e) {
       setState(() {
@@ -74,7 +117,50 @@ class _LeetCodeCardState extends State<LeetCodeCard> {
   @override
   void initState() {
     super.initState();
-    _fetchSubmissions();
+    _fetchData();
+  }
+
+  Widget _buildProgressCard() {
+    if (_progress == null) return const SizedBox.shrink();
+
+    final acceptedQuestions = _progress!['numAcceptedQuestions'] as List;
+    final totalBeatsPercentage =
+        _progress!['totalQuestionBeatsPercentage'] as double;
+
+    return Card(
+      child: Padding(
+        padding: const EdgeInsets.all(16.0),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            const Text(
+              '解题进度',
+              style: TextStyle(fontSize: 16, fontWeight: FontWeight.bold),
+            ),
+            const SizedBox(height: 8),
+            ...acceptedQuestions.map((q) {
+              final difficulty = q['difficulty'] as String;
+              final count = q['count'] as int;
+              return Padding(
+                padding: const EdgeInsets.symmetric(vertical: 4.0),
+                child: Row(
+                  mainAxisAlignment: MainAxisAlignment.spaceBetween,
+                  children: [Text(difficulty), Text('$count 题')],
+                ),
+              );
+            }).toList(),
+            const Divider(),
+            Row(
+              mainAxisAlignment: MainAxisAlignment.spaceBetween,
+              children: [
+                const Text('击败用户'),
+                Text('${totalBeatsPercentage.toStringAsFixed(1)}%'),
+              ],
+            ),
+          ],
+        ),
+      ),
+    );
   }
 
   @override
@@ -94,7 +180,7 @@ class _LeetCodeCardState extends State<LeetCodeCard> {
                 ),
                 IconButton(
                   icon: const Icon(Icons.refresh),
-                  onPressed: _isLoading ? null : _fetchSubmissions,
+                  onPressed: _isLoading ? null : _fetchData,
                 ),
               ],
             ),
@@ -115,31 +201,45 @@ class _LeetCodeCardState extends State<LeetCodeCard> {
                   ),
                 ),
               )
-            else if (_submissions.isEmpty)
-              const Center(
-                child: Padding(
-                  padding: EdgeInsets.all(16.0),
-                  child: Text('暂无提交记录'),
-                ),
-              )
             else
               Expanded(
-                child: ListView.builder(
-                  itemCount: _submissions.length,
-                  itemBuilder: (context, index) {
-                    final submission = _submissions[index];
-                    final question = submission['question'];
+                child: SingleChildScrollView(
+                  child: Column(
+                    children: [
+                      _buildProgressCard(),
+                      const SizedBox(height: 16),
+                      if (_submissions.isEmpty)
+                        const Center(
+                          child: Padding(
+                            padding: EdgeInsets.all(16.0),
+                            child: Text('暂无提交记录'),
+                          ),
+                        )
+                      else
+                        ListView.builder(
+                          shrinkWrap: true,
+                          physics: const NeverScrollableScrollPhysics(),
+                          itemCount: _submissions.length,
+                          itemBuilder: (context, index) {
+                            final submission = _submissions[index];
+                            final question = submission['question'];
 
-                    return ListTile(
-                      title: Text(
-                        question['translatedTitle'] ?? question['title'],
-                      ),
-                      subtitle: Text(
-                        '提交时间: ${timeago.format(DateTime.fromMillisecondsSinceEpoch(submission['submitTime'] * 1000), locale: 'zh_CN')}',
-                      ),
-                      trailing: Text('#${question['questionFrontendId']}'),
-                    );
-                  },
+                            return ListTile(
+                              title: Text(
+                                question['translatedTitle'] ??
+                                    question['title'],
+                              ),
+                              subtitle: Text(
+                                '提交时间: ${timeago.format(DateTime.fromMillisecondsSinceEpoch(submission['submitTime'] * 1000), locale: 'zh_CN')}',
+                              ),
+                              trailing: Text(
+                                '#${question['questionFrontendId']}',
+                              ),
+                            );
+                          },
+                        ),
+                    ],
+                  ),
                 ),
               ),
           ],