Added core data models, repositories, and utilities

lifetimer/lib/data/models/activity_model.dart

@@ -0,0 +1,56 @@
+import 'package:equatable/equatable.dart';
+
+class Activity extends Equatable {
+  final String id;
+  final String userId;
+  final String type;
+  final Map<String, dynamic>? payload;
+  final DateTime createdAt;
+
+  const Activity({
+    required this.id,
+    required this.userId,
+    required this.type,
+    this.payload,
+    required this.createdAt,
+  });
+
+  Activity copyWith({
+    String? id,
+    String? userId,
+    String? type,
+    Map<String, dynamic>? payload,
+    DateTime? createdAt,
+  }) {
+    return Activity(
+      id: id ?? this.id,
+      userId: userId ?? this.userId,
+      type: type ?? this.type,
+      payload: payload ?? this.payload,
+      createdAt: createdAt ?? this.createdAt,
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'id': id,
+      'user_id': userId,
+      'type': type,
+      'payload': payload,
+      'created_at': createdAt.toIso8601String(),
+    };
+  }
+
+  factory Activity.fromJson(Map<String, dynamic> json) {
+    return Activity(
+      id: json['id'] as String,
+      userId: json['user_id'] as String,
+      type: json['type'] as String,
+      payload: json['payload'] as Map<String, dynamic>?,
+      createdAt: DateTime.parse(json['created_at'] as String),
+    );
+  }
+
+  @override
+  List<Object?> get props => [id, userId, type, payload, createdAt];
+}

lifetimer/lib/data/models/goal_model.dart

@@ -78,4 +78,38 @@ class Goal extends Equatable {
         createdAt,
         updatedAt,
       ];
+
+  Map<String, dynamic> toJson() {
+    return {
+      'id': id,
+      'owner_id': ownerId,
+      'title': title,
+      'description': description,
+      'progress': progress,
+      'location_lat': locationLat,
+      'location_lng': locationLng,
+      'location_name': locationName,
+      'image_url': imageUrl,
+      'completed': completed,
+      'created_at': createdAt.toIso8601String(),
+      'updated_at': updatedAt.toIso8601String(),
+    };
+  }
+
+  factory Goal.fromJson(Map<String, dynamic> json) {
+    return Goal(
+      id: json['id'] as String,
+      ownerId: json['owner_id'] as String,
+      title: json['title'] as String,
+      description: json['description'] as String?,
+      progress: json['progress'] as int? ?? 0,
+      locationLat: json['location_lat'] as double?,
+      locationLng: json['location_lng'] as double?,
+      locationName: json['location_name'] as String?,
+      imageUrl: json['image_url'] as String?,
+      completed: json['completed'] as bool? ?? false,
+      createdAt: DateTime.parse(json['created_at'] as String),
+      updatedAt: DateTime.parse(json['updated_at'] as String),
+    );
+  }
 }

lifetimer/lib/data/models/goal_step_model.dart

@@ -0,0 +1,62 @@
+import 'package:equatable/equatable.dart';
+
+class GoalStep extends Equatable {
+  final String id;
+  final String goalId;
+  final String title;
+  final bool isDone;
+  final int orderIndex;
+  final DateTime createdAt;
+
+  const GoalStep({
+    required this.id,
+    required this.goalId,
+    required this.title,
+    required this.isDone,
+    required this.orderIndex,
+    required this.createdAt,
+  });
+
+  GoalStep copyWith({
+    String? id,
+    String? goalId,
+    String? title,
+    bool? isDone,
+    int? orderIndex,
+    DateTime? createdAt,
+  }) {
+    return GoalStep(
+      id: id ?? this.id,
+      goalId: goalId ?? this.goalId,
+      title: title ?? this.title,
+      isDone: isDone ?? this.isDone,
+      orderIndex: orderIndex ?? this.orderIndex,
+      createdAt: createdAt ?? this.createdAt,
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'id': id,
+      'goal_id': goalId,
+      'title': title,
+      'is_done': isDone,
+      'order_index': orderIndex,
+      'created_at': createdAt.toIso8601String(),
+    };
+  }
+
+  factory GoalStep.fromJson(Map<String, dynamic> json) {
+    return GoalStep(
+      id: json['id'] as String,
+      goalId: json['goal_id'] as String,
+      title: json['title'] as String,
+      isDone: json['is_done'] as bool? ?? false,
+      orderIndex: json['order_index'] as int? ?? 0,
+      createdAt: DateTime.parse(json['created_at'] as String),
+    );
+  }
+
+  @override
+  List<Object?> get props => [id, goalId, title, isDone, orderIndex, createdAt];
+}

lifetimer/lib/data/models/user_model.dart

@@ -76,4 +76,38 @@ class User extends Equatable {
         createdAt,
         updatedAt,
       ];
+
+  Map<String, dynamic> toJson() {
+    return {
+      'id': id,
+      'username': username,
+      'email': email,
+      'avatar_url': avatarUrl,
+      'bio': bio,
+      'is_public_profile': isPublicProfile,
+      'countdown_start_date': countdownStartDate?.toIso8601String(),
+      'countdown_end_date': countdownEndDate?.toIso8601String(),
+      'created_at': createdAt.toIso8601String(),
+      'updated_at': updatedAt.toIso8601String(),
+    };
+  }
+
+  factory User.fromJson(Map<String, dynamic> json) {
+    return User(
+      id: json['id'] as String,
+      username: json['username'] as String,
+      email: json['email'] as String,
+      avatarUrl: json['avatar_url'] as String?,
+      bio: json['bio'] as String?,
+      isPublicProfile: json['is_public_profile'] as bool? ?? false,
+      countdownStartDate: json['countdown_start_date'] != null
+          ? DateTime.parse(json['countdown_start_date'] as String)
+          : null,
+      countdownEndDate: json['countdown_end_date'] != null
+          ? DateTime.parse(json['countdown_end_date'] as String)
+          : null,
+      createdAt: DateTime.parse(json['created_at'] as String),
+      updatedAt: DateTime.parse(json['updated_at'] as String),
+    );
+  }
 }