😋 初始化仓库

lib/models/user_credentials.dart

@@ -0,0 +1,78 @@
+import 'package:flutter_secure_storage/flutter_secure_storage.dart';
+
+/// User credentials for authentication
+class UserCredentials {
+  final String userId;
+  final String ecPassword;
+  final String password;
+
+  UserCredentials({
+    required this.userId,
+    required this.ecPassword,
+    required this.password,
+  });
+
+  factory UserCredentials.fromJson(Map<String, dynamic> json) {
+    return UserCredentials(
+      userId: json['userId'] as String? ?? '',
+      ecPassword: json['ecPassword'] as String? ?? '',
+      password: json['password'] as String? ?? '',
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {'userId': userId, 'ecPassword': ecPassword, 'password': password};
+  }
+
+  /// Save credentials securely using flutter_secure_storage
+  Future<void> saveSecurely() async {
+    const storage = FlutterSecureStorage();
+    await storage.write(key: 'user_id', value: userId);
+    await storage.write(key: 'ec_password', value: ecPassword);
+    await storage.write(key: 'password', value: password);
+  }
+
+  /// Load credentials from secure storage
+  static Future<UserCredentials?> loadSecurely() async {
+    const storage = FlutterSecureStorage();
+
+    final userId = await storage.read(key: 'user_id');
+    final ecPassword = await storage.read(key: 'ec_password');
+    final password = await storage.read(key: 'password');
+
+    if (userId == null || ecPassword == null || password == null) {
+      return null;
+    }
+
+    return UserCredentials(
+      userId: userId,
+      ecPassword: ecPassword,
+      password: password,
+    );
+  }
+
+  /// Clear credentials from secure storage
+  static Future<void> clearSecurely() async {
+    const storage = FlutterSecureStorage();
+    await storage.delete(key: 'user_id');
+    await storage.delete(key: 'ec_password');
+    await storage.delete(key: 'password');
+  }
+
+  @override
+  String toString() {
+    return 'UserCredentials(userId: $userId)';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    if (identical(this, other)) return true;
+    return other is UserCredentials &&
+        other.userId == userId &&
+        other.ecPassword == ecPassword &&
+        other.password == password;
+  }
+
+  @override
+  int get hashCode => Object.hash(userId, ecPassword, password);
+}