commands-processing/CommandHandler/NavigationContext.cs

using CommandHandler.Commands;
using CommandHandler.Navigation;

namespace CommandHandler;

internal class NavigationContext : INavigationContext
{
    private INavigationState? _navigationState = null;

    public void SetState(INavigationState navigationState)
    {
        _navigationState = navigationState;
        _navigationState.SetContext(this);
    }

    public ICommand GetCommand(string message)
    {
        if (_navigationState == null)
        {
            throw new InvalidOperationException();
        }

        return _navigationState.GetCommand(message);
    }
}