RoverCommandParams.cs

public readonly struct RoverCommandParameters
{
    public RoverCommandParameters(
        int terrainMaxX,
        int terrainMaxY,
        int currentRoverPositionX,
        int currentRoverPositionY,
        Direction currentRoverHeading,
        params RoverCommands[] manouvreCommands)
    {
        Terrain = new Terrain(terrainMaxX, terrainMaxY);

        RoverInitialisationParameters = new RoverInitialisationParameters(
            currentRoverPositionX,
            currentRoverPositionY,
            currentRoverHeading);

        ManouvreCommands = manouvreCommands;
    }

    public Terrain Terrain { get; }
    public RoverInitialisationParameters RoverInitialisationParameters { get; }
    public RoverCommands[] ManouvreCommands { get; }
}

public enum RoverCommands
{
    TurnLeft = 0,
    TurnRight = 1,
    Move = 2
}

public readonly struct RoverInitialisationParameters
{
    public RoverInitialisationParameters(
        int currentRoverPositionX,
        int currentRoverPositionY,
        Direction currentRoverHeading)
    {
        CurrentRoverPositionX = currentRoverPositionX;
        CurrentRoverPositionY = currentRoverPositionY;
        CurrentRoverHeading = currentRoverHeading;
    }

    public int CurrentRoverPositionX { get; }
    public int CurrentRoverPositionY { get; }
    public Direction CurrentRoverHeading { get; }
}