File NSESessionSubsystem.h

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// Fill out your copyright notice in the Description page of Project Settings.

#pragma once

#include "CoreMinimal.h"
#include "OnlineSessionSettings.h"
#include "Subsystems/GameInstanceSubsystem.h"
#include "Interfaces/OnlineSessionInterface.h"
#include "NSESessionSubsystem.generated.h"

USTRUCT(BlueprintType)
struct FNSESessionInfo
{
    GENERATED_BODY()

    FNSESessionInfo() = default;
    FNSESessionInfo(const FOnlineSessionSearchResult& Result, const FString& Name, int32 OpenPrivate, int32 OpenPublic);

    FOnlineSessionSearchResult SessionSearchResult{};
    UPROPERTY(BlueprintReadOnly)
    FString OwningUserName;
    UPROPERTY(BlueprintReadOnly)
    int32 NumOpenPrivateConnections;
    UPROPERTY(BlueprintReadOnly)
    int32 NumOpenPublicConnections;
};

DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FNSEOnCreateSessionComplete, bool, bSuccess);
DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FNSEOnUpdateSessionComplete, bool, bSuccess);
DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FNSEOnStartSessionComplete, bool, bSuccess);
DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FNSEOnDestroySessionComplete, bool, bSuccess);
DECLARE_DYNAMIC_MULTICAST_DELEGATE_TwoParams(FNSEOnFindSessionsComplete, const TArray<FNSESessionInfo>&, SessionResults, bool, bSuccess);
DECLARE_MULTICAST_DELEGATE_OneParam(FNSEOnJoinSessionComplete, EOnJoinSessionCompleteResult::Type Result);

UCLASS()
class NIGHTSKYENGINE_API UNSESessionSubsystem : public UGameInstanceSubsystem
{
    GENERATED_BODY()

public:
    UNSESessionSubsystem();

    UFUNCTION(BlueprintCallable)
    void Login();
    FDelegateHandle LoginDelegateHandle;

    UFUNCTION(BlueprintPure)
    bool IsLoggedIn() const;

    UFUNCTION(BlueprintCallable)
    void CreateSession(int32 NumPublicConnections, bool bIsLANMatch);
    FNSEOnCreateSessionComplete OnCreateSessionCompleteDelegate;

    UFUNCTION(BlueprintCallable)
    void UpdateSession();
    FNSEOnUpdateSessionComplete OnUpdateSessionCompleteEvent;

    UFUNCTION(BlueprintCallable)
    void StartSession();
    FNSEOnStartSessionComplete OnStartSessionCompleteEvent;

    UFUNCTION(BlueprintCallable)
    void DestroySession();
    FNSEOnDestroySessionComplete OnDestroySessionCompleteEvent;

    UFUNCTION(BlueprintCallable)
    void FindSessions(int32 MaxSearchResults, bool IsLANQuery);
    UPROPERTY(BlueprintAssignable)
    FNSEOnFindSessionsComplete OnFindSessionsCompleteEvent;

    UFUNCTION(BlueprintCallable)
    void JoinGameSession_BP(FNSESessionInfo Info);

    void JoinGameSession(const FOnlineSessionSearchResult& SessionResult);
    FNSEOnJoinSessionComplete OnJoinGameSessionCompleteEvent;

protected:
    void OnLoginCompleted(int32 LocalUserNum, bool bWasSuccessful, const FUniqueNetId& UserId, const FString& Error);
    void OnCreateSessionComplete(FName SessionName, bool bSuccess);
    void OnUpdateSessionComplete(FName SessionName, bool bSuccess);
    void OnStartSessionComplete(FName SessionName, bool bSuccess);
    void OnDestroySessionComplete(FName SessionName, bool bSuccess);
    void OnFindSessionsComplete(bool bSuccess);
    void OnJoinSessionComplete(FName SessionName, EOnJoinSessionCompleteResult::Type Result);
    void OnSessionInviteAccepted(const bool bSuccess, const int32 ControllerId, FUniqueNetIdPtr UserId, const FOnlineSessionSearchResult& InviteResult);
    bool TryTravelToCurrentSession();

private:
    FOnCreateSessionCompleteDelegate CreateSessionCompleteDelegate;
    FDelegateHandle CreateSessionCompleteDelegateHandle;;

    FOnUpdateSessionCompleteDelegate UpdateSessionCompleteDelegate;
    FDelegateHandle UpdateSessionCompleteDelegateHandle;

    FOnStartSessionCompleteDelegate StartSessionCompleteDelegate;
    FDelegateHandle StartSessionCompleteDelegateHandle;

    FOnDestroySessionCompleteDelegate DestroySessionCompleteDelegate;
    FDelegateHandle DestroySessionCompleteDelegateHandle;

    FOnFindSessionsCompleteDelegate FindSessionsCompleteDelegate;
    FDelegateHandle FindSessionsCompleteDelegateHandle;
    TSharedPtr<FOnlineSessionSearch> LastSessionSearch;

    FOnJoinSessionCompleteDelegate JoinSessionCompleteDelegate;
    FDelegateHandle JoinSessionCompleteDelegateHandle;

    FOnSessionUserInviteAcceptedDelegate SessionUserInviteAcceptedDelegate;
    FDelegateHandle SessionUserInviteAcceptedDelegateHandle;

    TSharedPtr<FOnlineSessionSettings> LastSessionSettings;
};