chore: renamed solution

CarManagerV3/StateManager.cs

@@ -0,0 +1,65 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CarManagerV3
+{
+    internal class StateManager
+    {
+
+        static List<Car> cars = new List<Car>();
+        static string filePath = "cars.csv";
+
+        public static Car GetCarById(int id)
+        {
+            cars = SafeManager.ReadCars(filePath);
+            return cars.FirstOrDefault(c => c.Id == id);
+        }
+
+        public static List<Car> Cars { get { return cars; } set { cars = value; } }
+
+        public static void AddCar(Car car)
+        {
+            cars = SafeManager.ReadCars(filePath);
+            cars.Add(car);
+            SafeManager.SaveCars(filePath, cars);
+        }
+
+        public static void RemoveCar(Car car)
+        {
+            cars = SafeManager.ReadCars(filePath);
+            Car existingCar = GetCarById(car.Id);
+            if (existingCar == null) return;
+            cars.Remove(existingCar);
+            SafeManager.SaveCars(filePath, cars);
+        }
+
+        public static void UpdateCar(Car car)
+        {
+            Car existingCar = GetCarById(car.Id);
+            if (existingCar != null)
+            {
+                int index = cars.IndexOf(existingCar);
+                cars[index] = car;
+                Console.WriteLine("Updated car: " + existingCar.Id);
+                SafeManager.SaveCars(filePath, cars);
+            }
+        }
+
+        public static Car CreateCar(string make, string model, int year, string color, int mileage, decimal price)
+        {
+            cars = SafeManager.ReadCars(filePath);
+            int newId = cars.Count > 0 ? cars.Max(c => c.Id) + 1 : 1;
+            Car newCar = new Car(newId, make, model, year, color, mileage, price);
+            AddCar(newCar);
+            return newCar;
+        }
+
+        public static void setFilePath(string path)
+        {
+            filePath = path;
+        }
+    }
+}