Initial commit: Project documentation and git setup

lifetimer/lib/data/models/user_model.dart

@@ -0,0 +1,79 @@
+import 'package:equatable/equatable.dart';
+
+class User extends Equatable {
+  final String id;
+  final String username;
+  final String email;
+  final String? avatarUrl;
+  final String? bio;
+  final bool isPublicProfile;
+  final DateTime? countdownStartDate;
+  final DateTime? countdownEndDate;
+  final DateTime createdAt;
+  final DateTime updatedAt;
+
+  const User({
+    required this.id,
+    required this.username,
+    required this.email,
+    this.avatarUrl,
+    this.bio,
+    this.isPublicProfile = false,
+    this.countdownStartDate,
+    this.countdownEndDate,
+    required this.createdAt,
+    required this.updatedAt,
+  });
+
+  bool get hasCountdownStarted => countdownStartDate != null;
+  
+  bool get isCountdownActive {
+    if (!hasCountdownStarted || countdownEndDate == null) return false;
+    return DateTime.now().isBefore(countdownEndDate!);
+  }
+
+  int? get daysRemaining {
+    if (!isCountdownActive) return null;
+    return countdownEndDate!.difference(DateTime.now()).inDays;
+  }
+
+  User copyWith({
+    String? id,
+    String? username,
+    String? email,
+    String? avatarUrl,
+    String? bio,
+    bool? isPublicProfile,
+    DateTime? countdownStartDate,
+    DateTime? countdownEndDate,
+    DateTime? createdAt,
+    DateTime? updatedAt,
+  }) {
+    return User(
+      id: id ?? this.id,
+      username: username ?? this.username,
+      email: email ?? this.email,
+      avatarUrl: avatarUrl ?? this.avatarUrl,
+      bio: bio ?? this.bio,
+      isPublicProfile: isPublicProfile ?? this.isPublicProfile,
+      countdownStartDate: countdownStartDate ?? this.countdownStartDate,
+      countdownEndDate: countdownEndDate ?? this.countdownEndDate,
+      createdAt: createdAt ?? this.createdAt,
+      updatedAt: updatedAt ?? this.updatedAt,
+    );
+  }
+
+  @override
+  List<Object?> get props => [
+        id,
+        username,
+        email,
+        avatarUrl,
+        bio,
+        isPublicProfile,
+        countdownStartDate,
+        countdownEndDate,
+        createdAt,
+        updatedAt,
+      ];
+}