bool UPongGameInstance::JoinOnlineGame()
{
    ULocalPlayer* Player = GetFirstGamePlayer();

    TSharedPtr<const FUniqueNetId> PlayerId = Player->GetPreferredUniqueNetId().GetUniqueNetId();

    FOnlineSessionSearchResult Result;

    bool bWasSuccessful = false;

    for(FOnlineSessionSearchResult SearchResult : SessionSearch->SearchResults)
    {
        if(SearchResult.Session.OwningUserId != PlayerId)
        {
            bWasSuccessful = JoinGameSession(PlayerId, GameSessionName, SearchResult);

            if(bWasSuccessful)
            {
                break;
            }
        }
    }

    return bWasSuccessful;

}

void UPongGameInstance::OnJoinSessionComplete(
    FName SessionName,
    EOnJoinSessionCompleteResult::Type Result
)
{
    GEngine->AddOnScreenDebugMessage(
        -1,
        10.f,
        FColor::Yellow,
        FString::Printf(
            TEXT("The connection request %s."),
            Result == EOnJoinSessionCompleteResult::Success ?
                *FString(TEXT("succeeded")) : *FString(TEXT("failed"))
        )
    );

    //The first thing to do when working with online subsystems
    const IOnlineSubsystem* OnlineSubsystem = IOnlineSubsystem::Get();

    if (OnlineSubsystem)
    {
        IOnlineSessionPtr SessionInterface = OnlineSubsystem->GetSessionInterface();

        if(SessionInterface.IsValid())
        {
            //Must clean the handle when the connection request is completed, to use it again
            SessionInterface->ClearOnJoinSessionCompleteDelegate_Handle(
                OnJoinSessionCompleteDelegateHandle
            );

            if(Result == EOnJoinSessionCompleteResult::Success)
            {
                TravelTo(SessionInterface, SessionName, ETravelType::TRAVEL_Absolute);
            }
        }

        return;
    }

    WarnsAboutLackOfSubsystem();

}

void UPongGameInstance::TravelTo(
    const IOnlineSessionPtr& SessionInterface,
    const FName& SessionName,
    ETravelType Type
)
{
    FString TravelURL;

    APlayerController* PlayerController = GetFirstLocalPlayerController();

    //Creates the connection information necessary to travel to the server
    if (PlayerController && SessionInterface->GetResolvedConnectString(SessionName, TravelURL))
    {
        GEngine->AddOnScreenDebugMessage(
            -1,
            10.f,
            FColor::Green,
            FString::Printf(
                TEXT("Travelling to %s"),
                *TravelURL
            )
        );

        PlayerController->ClientTravel(TravelURL, ETravelType::TRAVEL_Absolute);
    }

}