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

#include "PuzzlePlatformsGameInstance.h"

#include "Engine/Engine.h"
#include "UObject/ConstructorHelpers.h"
#include "Blueprint/UserWidget.h"
#include "OnlineSessionSettings.h"
#include "OnlineSessionInterface.h"

#include "PlatformTrigger.h"
#include "MenuSystem/MainMenu.h"
#include "MenuSystem/MenuWidget.h"


UPuzzlePlatformsGameInstance::UPuzzlePlatformsGameInstance(const FObjectInitializer & ObjectInitializer)
{
    ConstructorHelpers::FClassFinder<UUserWidget> MenuBPClass(TEXT("/Game/MenuSystem/WBP_MainMenu"));
    if (!ensure(MenuBPClass.Class != nullptr)) return;

    MenuClass = MenuBPClass.Class;

    ConstructorHelpers::FClassFinder<UUserWidget> InGameMenuBPClass(TEXT("/Game/MenuSystem/WBP_InGameMenu"));
    if (!ensure(InGameMenuBPClass.Class != nullptr)) return;

    InGameMenuClass = InGameMenuBPClass.Class;
}

void UPuzzlePlatformsGameInstance::Init()
{
    IOnlineSubsystem* Subsystem = IOnlineSubsystem::Get();
    if (Subsystem != nullptr)
    {
        UE_LOG(LogTemp, Warning, TEXT("Found Subsystem %s"), *Subsystem->GetSubsystemName().ToString());
        SessionInterface = Subsystem->GetSessionInterface();
        if (SessionInterface.IsValid()) {
            SessionInterface->OnCreateSessionCompleteDelegates.AddUObject(this, &UPuzzlePlatformsGameInstance::OnCreateSessionComplete);
        }
    }
    else
    {
        UE_LOG(LogTemp, Warning, TEXT("Found no subsystem"));
    }
}

void UPuzzlePlatformsGameInstance::LoadMenuWidget()
{
    if (!ensure(MenuClass != nullptr)) return;

    Menu = CreateWidget<UMainMenu>(this, MenuClass);
    if (!ensure(Menu != nullptr)) return;

    Menu->Setup();

    Menu->SetMenuInterface(this);
}

void UPuzzlePlatformsGameInstance::InGameLoadMenu()
{
    if (!ensure(InGameMenuClass != nullptr)) return;

    UMenuWidget* Menu = CreateWidget<UMenuWidget>(this, InGameMenuClass);
    if (!ensure(Menu != nullptr)) return;

    Menu->Setup();

    Menu->SetMenuInterface(this);
}


void UPuzzlePlatformsGameInstance::Host()
{
    if (SessionInterface.IsValid()) {
        FOnlineSessionSettings SessionSettings;
        SessionInterface->CreateSession(0, TEXT("My Session Game"), SessionSettings);
    }
}

void UPuzzlePlatformsGameInstance::OnCreateSessionComplete(FName SessionName, bool Success)
{
    if(!Success){
        UE_LOG(LogTemp, Warning, TEXT("Could not create session"));
        return;
    }
    if (Menu != nullptr)
    {
        Menu->Teardown();
    }

    UEngine* Engine = GetEngine();
    if (!ensure(Engine != nullptr)) return;

    Engine->AddOnScreenDebugMessage(0, 2, FColor::Green, TEXT("Hosting"));

    UWorld* World = GetWorld();
    if (!ensure(World != nullptr)) return;

    World->ServerTravel("/Game/ThirdPersonCPP/Maps/ThirdPersonExampleMap?listen");
}

void UPuzzlePlatformsGameInstance::Join(const FString& Address)
{
    if (Menu != nullptr)
    {
        Menu->Teardown();
    }

    UEngine* Engine = GetEngine();
    if (!ensure(Engine != nullptr)) return;

    Engine->AddOnScreenDebugMessage(0, 5, FColor::Green, FString::Printf(TEXT("Joining %s"), *Address));

    APlayerController* PlayerController = GetFirstLocalPlayerController();
    if (!ensure(PlayerController != nullptr)) return;

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

void UPuzzlePlatformsGameInstance::LoadMainMenu()
{
    APlayerController* PlayerController = GetFirstLocalPlayerController();
    if (!ensure(PlayerController != nullptr)) return;

    PlayerController->ClientTravel("/Game/MenuSystem/MainMenu", ETravelType::TRAVEL_Absolute);
}