first app design

lib/core/models/vehicle.dart

@@ -0,0 +1,81 @@
+class Vehicle {
+  final String id;
+  final String make;
+  final String model;
+  final int year;
+  final String licensePlate;
+  final double dailyRate;
+  final String status;
+  final String category;
+  final List<String> photos;
+  final int? mileage;
+  final int? seats;
+  final String? transmission;
+  final String? fuelType;
+  final bool isPublished;
+
+  const Vehicle({
+    required this.id,
+    required this.make,
+    required this.model,
+    required this.year,
+    required this.licensePlate,
+    required this.dailyRate,
+    required this.status,
+    required this.category,
+    required this.photos,
+    this.mileage,
+    this.seats,
+    this.transmission,
+    this.fuelType,
+    required this.isPublished,
+  });
+
+  String get displayName => '$year $make $model';
+
+  String? get primaryPhoto => photos.isNotEmpty ? photos.first : null;
+
+  factory Vehicle.fromJson(Map<String, dynamic> json) => Vehicle(
+        id: json['id'] as String,
+        make: json['make'] as String,
+        model: json['model'] as String,
+        year: json['year'] as int,
+        licensePlate: json['licensePlate'] as String,
+        dailyRate: (json['dailyRate'] as num).toDouble(),
+        status: json['status'] as String? ?? 'AVAILABLE',
+        category: json['category'] as String? ?? 'ECONOMY',
+        photos: (json['photos'] as List<dynamic>?)
+                ?.map((e) => e as String)
+                .toList() ??
+            [],
+        mileage: json['mileage'] as int?,
+        seats: json['seats'] as int?,
+        transmission: json['transmission'] as String?,
+        fuelType: json['fuelType'] as String?,
+        isPublished: json['isPublished'] as bool? ?? false,
+      );
+}
+
+class VehicleListResponse {
+  final List<Vehicle> data;
+  final int total;
+  final int page;
+  final int pageSize;
+
+  const VehicleListResponse({
+    required this.data,
+    required this.total,
+    required this.page,
+    required this.pageSize,
+  });
+
+  factory VehicleListResponse.fromJson(Map<String, dynamic> json) =>
+      VehicleListResponse(
+        data: (json['data'] as List<dynamic>)
+            .map((e) => Vehicle.fromJson(e as Map<String, dynamic>))
+            .toList(),
+        total: json['total'] as int? ?? 0,
+        page: json['page'] as int? ?? 1,
+        pageSize: json['pageSize'] as int? ?? 20,
+      );
+}