feat(platform): 添加 GitHub 平台支持

- 在 HomeScreen 中添加 GitHub 卡片组件
- 在 SettingsScreen 中添加 GitHub 设置选项
- 在 AuthService 中添加 GitHub 用户名和 token 的存储和读取逻辑
- 删除未使用的 TimeUtils 类

lib/models/github_event.dart

@@ -0,0 +1,124 @@
+class GithubEvent {
+  final String id;
+  final String type;
+  final Actor actor;
+  final Repo repo;
+  final Payload payload;
+  final bool public;
+  final DateTime createdAt;
+
+  GithubEvent({
+    required this.id,
+    required this.type,
+    required this.actor,
+    required this.repo,
+    required this.payload,
+    required this.public,
+    required this.createdAt,
+  });
+
+  factory GithubEvent.fromJson(Map<String, dynamic> json) {
+    return GithubEvent(
+      id: json['id'].toString(),
+      type: json['type'],
+      actor: Actor.fromJson(json['actor']),
+      repo: Repo.fromJson(json['repo']),
+      payload: Payload.fromJson(json['payload']),
+      public: json['public'],
+      createdAt: DateTime.parse(json['created_at']),
+    );
+  }
+}
+
+class Actor {
+  final int id;
+  final String login;
+  final String displayLogin;
+  final String avatarUrl;
+
+  Actor({
+    required this.id,
+    required this.login,
+    required this.displayLogin,
+    required this.avatarUrl,
+  });
+
+  factory Actor.fromJson(Map<String, dynamic> json) {
+    return Actor(
+      id: json['id'],
+      login: json['login'],
+      displayLogin: json['display_login'],
+      avatarUrl: json['avatar_url'],
+    );
+  }
+}
+
+class Repo {
+  final int id;
+  final String name;
+  final String url;
+
+  Repo({required this.id, required this.name, required this.url});
+
+  factory Repo.fromJson(Map<String, dynamic> json) {
+    return Repo(id: json['id'], name: json['name'], url: json['url']);
+  }
+}
+
+class Payload {
+  final String? action;
+  final int? pushId;
+  final List<Commit>? commits;
+
+  Payload({this.action, this.pushId, this.commits});
+
+  factory Payload.fromJson(Map<String, dynamic> json) {
+    return Payload(
+      action: json['action'],
+      pushId: json['push_id'],
+      commits:
+          json['commits'] != null
+              ? List<Commit>.from(
+                json['commits'].map((x) => Commit.fromJson(x)),
+              )
+              : null,
+    );
+  }
+}
+
+class Commit {
+  final String sha;
+  final Author author;
+  final String message;
+  final bool distinct;
+  final String url;
+
+  Commit({
+    required this.sha,
+    required this.author,
+    required this.message,
+    required this.distinct,
+    required this.url,
+  });
+
+  factory Commit.fromJson(Map<String, dynamic> json) {
+    return Commit(
+      sha: json['sha'],
+      author: Author.fromJson(json['author']),
+      message: json['message'],
+      distinct: json['distinct'],
+      url: json['url'],
+    );
+  }
+}
+
+class Author {
+  final String email;
+  final String name;
+
+  Author({required this.email, required this.name});
+
+  factory Author.fromJson(Map<String, dynamic> json) {
+    return Author(email: json['email'], name: json['name']);
+  }
+}

lib/screens/home_screen.dart

@@ -4,6 +4,7 @@ import '../services/auth_service.dart';
 import '../widgets/leetcode_card.dart';
 import '../widgets/gitea_card.dart';
 import '../widgets/kodbox_card.dart';
+import '../widgets/github_card.dart';
 import 'settings_screen.dart';
 
 class HomeScreen extends StatefulWidget {
@@ -15,7 +16,7 @@ class HomeScreen extends StatefulWidget {
 
 class _HomeScreenState extends State<HomeScreen> {
   int _selectedIndex = 0;
-  final List<String> _platforms = ['LeetCode', 'Gitea', 'KodBox'];
+  final List<String> _platforms = ['LeetCode', 'Gitea', 'KodBox', 'GitHub'];
 
   @override
   void initState() {
@@ -79,6 +80,8 @@ class _HomeScreenState extends State<HomeScreen> {
         return Icons.storage;
       case 'KodBox':
         return Icons.folder;
+      case 'GitHub':
+        return Icons.code;
       default:
         return Icons.help_outline;
     }
@@ -92,6 +95,8 @@ class _HomeScreenState extends State<HomeScreen> {
         return const GiteaCard();
       case 'KodBox':
         return const KodBoxCard();
+      case 'GitHub':
+        return const GithubCard();
       default:
         return const Center(child: Text('未知平台'));
     }

lib/screens/settings_screen.dart

@@ -16,6 +16,8 @@ class _SettingsScreenState extends State<SettingsScreen> {
   final _giteaController = TextEditingController();
   final _giteaUsernameController = TextEditingController();
   final _kodboxController = TextEditingController();
+  final _githubUsernameController = TextEditingController();
+  final _githubTokenController = TextEditingController();
 
   @override
   void initState() {
@@ -30,6 +32,8 @@ class _SettingsScreenState extends State<SettingsScreen> {
     _giteaController.dispose();
     _giteaUsernameController.dispose();
     _kodboxController.dispose();
+    _githubUsernameController.dispose();
+    _githubTokenController.dispose();
     super.dispose();
   }
 
@@ -46,6 +50,10 @@ class _SettingsScreenState extends State<SettingsScreen> {
       _giteaUsernameController.text =
           authService.credentials['gitea_username'] ?? '';
       _kodboxController.text = authService.credentials['kodbox_token'] ?? '';
+      _githubUsernameController.text =
+          authService.credentials['github_username'] ?? '';
+      _githubTokenController.text =
+          authService.credentials['github_token'] ?? '';
     });
   }
 
@@ -77,6 +85,18 @@ class _SettingsScreenState extends State<SettingsScreen> {
       if (_kodboxController.text.isNotEmpty) {
         await authService.saveConfigs('kodbox_token', _kodboxController.text);
       }
+      if (_githubUsernameController.text.isNotEmpty) {
+        await authService.saveConfigs(
+          'github_username',
+          _githubUsernameController.text,
+        );
+      }
+      if (_githubTokenController.text.isNotEmpty) {
+        await authService.saveConfigs(
+          'github_token',
+          _githubTokenController.text,
+        );
+      }
 
       if (mounted) {
         ScaffoldMessenger.of(
@@ -161,6 +181,31 @@ class _SettingsScreenState extends State<SettingsScreen> {
                 ),
               ],
             ),
+            const SizedBox(height: 16),
+            _buildPlatformSettings(
+              title: 'GitHub 设置',
+              icon: Icons.code,
+              children: [
+                TextFormField(
+                  controller: _githubUsernameController,
+                  decoration: const InputDecoration(
+                    labelText: '用户名',
+                    hintText: '请输入 GitHub 用户名',
+                    border: OutlineInputBorder(),
+                  ),
+                ),
+                const SizedBox(height: 16),
+                TextFormField(
+                  controller: _githubTokenController,
+                  decoration: const InputDecoration(
+                    labelText: 'Personal Access Token',
+                    hintText: '请输入 GitHub Personal Access Token',
+                    border: OutlineInputBorder(),
+                  ),
+                  obscureText: true,
+                ),
+              ],
+            ),
             const SizedBox(height: 24),
             ElevatedButton(onPressed: _saveSettings, child: const Text('保存设置')),
           ],

lib/services/auth_service.dart

@@ -22,6 +22,8 @@ class AuthService extends ChangeNotifier {
     final giteaToken = await _storage.read(key: 'gitea_token');
     final giteaUserName = await _storage.read(key: 'gitea_username');
     final kodboxToken = await _storage.read(key: 'kodbox_token');
+    final githubUserName = await _storage.read(key: 'github_username');
+    final githubToken = await _storage.read(key: 'github_token');
 
     if (leetcodeCookie != null) {
       _credentials['leetcode_cookie'] = leetcodeCookie;
@@ -38,6 +40,12 @@ class AuthService extends ChangeNotifier {
     if (kodboxToken != null) {
       _credentials['kodbox_token'] = kodboxToken;
     }
+    if (githubUserName != null) {
+      _credentials['github_username'] = githubUserName;
+    }
+    if (githubToken != null) {
+      _credentials['github_token'] = githubToken;
+    }
     _isAuthenticated = true;
     notifyListeners();
   }

lib/services/github_service.dart

@@ -0,0 +1,24 @@
+import 'dart:convert';
+import 'package:http/http.dart' as http;
+import '../models/github_event.dart';
+
+class GithubService {
+  static const String _baseUrl = 'https://api.github.com';
+
+  Future<List<GithubEvent>> getUserEvents(String username, String token) async {
+    final response = await http.get(
+      Uri.parse('$_baseUrl/users/$username/events'),
+      headers: {
+        'Authorization': 'Bearer $token',
+        'Accept': 'application/vnd.github.v3+json',
+      },
+    );
+
+    if (response.statusCode == 200) {
+      final List<dynamic> jsonList = json.decode(response.body);
+      return jsonList.map((json) => GithubEvent.fromJson(json)).toList();
+    } else {
+      throw Exception('Failed to load GitHub events: ${response.statusCode}');
+    }
+  }
+}

lib/utils/time_utils.dart

@@ -1,23 +0,0 @@
-class TimeUtils {
-  static String getRelativeTime(String timestamp) {
-    final now = DateTime.now();
-    final date = DateTime.fromMillisecondsSinceEpoch(
-      (double.parse(timestamp) * 1000).round(),
-    );
-    final difference = now.difference(date);
-
-    if (difference.inSeconds < 60) {
-      return '刚刚';
-    } else if (difference.inMinutes < 60) {
-      return '${difference.inMinutes}分钟前';
-    } else if (difference.inHours < 24) {
-      return '${difference.inHours}小时前';
-    } else if (difference.inDays < 30) {
-      return '${difference.inDays}天前';
-    } else if (difference.inDays < 365) {
-      return '${(difference.inDays / 30).round()}个月前';
-    } else {
-      return '${(difference.inDays / 365).round()}年前';
-    }
-  }
-}

lib/widgets/github_card.dart

@@ -0,0 +1,114 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import '../services/auth_service.dart';
+import '../services/github_service.dart';
+import '../models/github_event.dart';
+import 'package:timeago/timeago.dart' as timeago;
+
+class GithubCard extends StatefulWidget {
+  const GithubCard({super.key});
+
+  @override
+  State<GithubCard> createState() => _GithubCardState();
+}
+
+class _GithubCardState extends State<GithubCard> {
+  final GithubService _githubService = GithubService();
+  late Future<List<GithubEvent>> _eventsFuture;
+
+  @override
+  void initState() {
+    super.initState();
+    _loadEvents();
+  }
+
+  void _loadEvents() {
+    final authService = Provider.of<AuthService>(context, listen: false);
+    final username = authService.credentials['github_username'];
+    final token = authService.credentials['github_token'];
+
+    if (username != null && token != null) {
+      _eventsFuture = _githubService.getUserEvents(username, token);
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final authService = Provider.of<AuthService>(context);
+    final username = authService.credentials['github_username'];
+    final token = authService.credentials['github_token'];
+
+    if (username == null || token == null) {
+      return const Center(child: Text('请在设置中配置 GitHub 用户名和 Token'));
+    }
+
+    return FutureBuilder<List<GithubEvent>>(
+      future: _eventsFuture,
+      builder: (context, snapshot) {
+        if (snapshot.connectionState == ConnectionState.waiting) {
+          return const Center(child: CircularProgressIndicator());
+        }
+
+        if (snapshot.hasError) {
+          return Center(child: Text('加载失败: ${snapshot.error}'));
+        }
+
+        if (!snapshot.hasData || snapshot.data!.isEmpty) {
+          return const Center(child: Text('暂无活动数据'));
+        }
+
+        return ListView.builder(
+          itemCount: snapshot.data!.length,
+          itemBuilder: (context, index) {
+            final event = snapshot.data![index];
+            return Card(
+              margin: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
+              child: ListTile(
+                leading: CircleAvatar(
+                  backgroundImage: NetworkImage(event.actor.avatarUrl),
+                ),
+                title: Text(
+                  _getEventTitle(event),
+                  style: const TextStyle(fontWeight: FontWeight.bold),
+                ),
+                subtitle: Column(
+                  crossAxisAlignment: CrossAxisAlignment.start,
+                  children: [
+                    Text('仓库: ${event.repo.name}'),
+                    Text(
+                      '时间: ${timeago.format(event.createdAt, locale: "zh_CN")}',
+                    ),
+                    if (event.type == 'PushEvent' &&
+                        event.payload.commits != null)
+                      ...event.payload.commits!.map(
+                        (commit) => Text(
+                          '提交: ${commit.message}',
+                          style: const TextStyle(fontSize: 12),
+                        ),
+                      ),
+                  ],
+                ),
+                isThreeLine: true,
+              ),
+            );
+          },
+        );
+      },
+    );
+  }
+
+  String _getEventTitle(GithubEvent event) {
+    switch (event.type) {
+      case 'WatchEvent':
+        return '${event.actor.login} 关注了 ${event.repo.name}';
+      case 'PushEvent':
+        return '${event.actor.login} 推送了代码到 ${event.repo.name}';
+      case 'CreateEvent':
+        return '${event.actor.login} 创建了 ${event.repo.name}';
+      case 'ForkEvent':
+        return '${event.actor.login} Fork 了 ${event.repo.name}';
+      default:
+        return '${event.actor.login} 在 ${event.repo.name} 进行了 ${event.type} 操作';
+    }
+  }
+}