public void Validate(CreateGameMessages.Request request)
{
var exceptionMessage = "";
var session = request.Session;
if (session == null || String.IsNullOrWhiteSpace(session.Id))
{
exceptionMessage = "Session is empty. ";
}
var gameName = request.GameName;
if (String.IsNullOrWhiteSpace(gameName))
{
exceptionMessage += "Game name cannot be empty. ";
}
if (request.AccessLevel == null)
{
exceptionMessage += "Game must have an access level.";
}
if (String.IsNullOrWhiteSpace(exceptionMessage) == false)
{
throw new Exception(exceptionMessage);
}
}
public CreateGameMessages.Response Handle(CreateGameMessages.Request request)
{
try
{
Validator.Validate(request);
} catch (Exception e)
{
return(new Response()
{
Success = false,
Exception = e
});
}
// Validate session
try
{
var sessionExists = SessionGateway.GetSession(request.Session.Id);
if (sessionExists == null)
{
throw new Exception("Session does not valid!");
}
} catch (Exception e)
{
return(new Response()
{
Success = false,
Exception = e
});
}
// Validate game name is unique
try
{
var gameExists = GameGateway.GetGameBy(request.GameName); // does not throw
if (gameExists != null)
{
throw new Exception("Game with name already exists!");
}
}
catch (Exception e)
{
return(new Response()
{
Success = false,
Exception = e
});
}
// Save game
int gameId;
try
{
var game = new Game()
{
GameId = 0, // assigned by gateway
Name = request.GameName,
AccessLevel = request.AccessLevel
};
gameId = GameGateway.CreateGame(game);
} catch (Exception e)
{
return(new Response()
{
Success = false,
Exception = e
});
}
return(new Response()
{
Success = true,
GameId = gameId
});
}