using System;

​

// Vehicle Service Due Check

// The requrirement is that the program needs to determine wheter a vehicle is due for a service based on their registration date.

// Commercial vehicles: Due after 6 months from the registration date.

// Standard vehicles: Due after 1 year from the registration date.

// The function should return:

// "Due" if the vehicle is past the service date.

// "Not Due" if it's not yet time for service.

// "Unknown" if the input data is invalid (missing vehicle type or registration date).

​

public class Program

{   

    public static void Main()

    {

        var currentDate = new DateTime(2025, 01, 01);

        // Standard Vehicle is Due

        var standardVehicleDue = new Vehicle("Toyota ", "Camry", 8000, new DateTime(2023, 01, 01), VehicleType.Standard);

        // Standard Vehicle is Not Due

        var standardVehicleNotDue = new Vehicle("Ford", "Mustang", 8000, new DateTime(2024, 06, 06), VehicleType.Standard);

        // Commercial Vehicle is Due

        var commercialVehicleDue = new Vehicle("Honda", "Civic", 8000, new DateTime(2024, 05, 05), VehicleType.Commercial);

        // Commercial Vehicle is Not Due

        var commercialVehicleNotDue = new Vehicle("Chevrolet", "Silverado", 8000, new DateTime(2024, 05, 05), VehicleType.Commercial);

        // TODO: Implement your solution

    }   

}

​

public class Vehicle

{

    public string Make { get; set; }

    public string Model { get; set; }

    public int Mileage { get; set; }

    public DateTime RegistrationDate { get; set; }

    public VehicleType VehicleType { get; set; }

    public Vehicle(string make, string model, int mileage, DateTime registrationDate, VehicleType vehicleType)

    {

        Make = make;

        Model = model;

        Mileage = mileage;

        RegistrationDate = registrationDate;

        VehicleType = vehicleType;

    }

}

​

public enum VehicleType

{

    Standard = 1,

    Commercial = 2

}

​

public enum ServiceDue

{

    Unknown = 1,

    Due = 2,

    NotDue = 3

}