/******************************************************************************
 * Copyright (C) Ultraleap, Inc. 2011-2024.                                   *
 *                                                                            *
 * Use subject to the terms of the Apache License 2.0 available at            *
 * http://www.apache.org/licenses/LICENSE-2.0, or another agreement           *
 * between Ultraleap and you, your company or other organization.             *
 ******************************************************************************/


#include "LeapVisualizer.h"

#include "LeapUtility.h"
#include "Kismet/GameplayStatics.h"
#include "Kismet/KismetMathLibrary.h"
#include "HeadMountedDisplayFunctionLibrary.h"

// Sets default values
ALeapVisualizer::ALeapVisualizer() 
	: NSPlayerAreaBounds(nullptr)
	, NSPTeleportRing(nullptr)
	, Root(nullptr)
	, PlayerAreaBoundsComponent(nullptr)
	, TeleportRingComponent(nullptr)
	, LeapPawn(nullptr)
	, PlayerCameraManager(nullptr)
	, World(nullptr)
{
 	// Set this actor to call Tick() every frame.  You can turn this off to improve performance if you don't need it.
	PrimaryActorTick.bCanEverTick = true;

	Root = CreateDefaultSubobject<USceneComponent>(TEXT("RootComponent"));
	RootComponent = Root;

	NSPlayerAreaBounds = Cast<UNiagaraSystem>(StaticLoadObject(UNiagaraSystem::StaticClass(), nullptr,
		TEXT("NiagaraSystem'/UltraleapTracking/InteractionEngine/VFX/Leap_NS_PlayAreaBounds.Leap_NS_PlayAreaBounds'")));
	if (NSPlayerAreaBounds == nullptr)
	{
		UE_LOG(UltraleapTrackingLog, Error, TEXT("NSPlayerAreaBounds is nullptr in ALeapVisualizer()"));
	}

	NSPTeleportRing = Cast<UNiagaraSystem>(StaticLoadObject(UNiagaraSystem::StaticClass(), nullptr,
		TEXT("NiagaraSystem'/UltraleapTracking/InteractionEngine/VFX/Leap_NS_TeleportRing.Leap_NS_TeleportRing'")));

	if (NSPTeleportRing == nullptr)
	{
		UE_LOG(UltraleapTrackingLog, Error, TEXT("NSPTeleportRing is nullptr in ALeapVisualizer()"));
	}

	PlayerAreaBoundsComponent = CreateDefaultSubobject<UNiagaraComponent>(TEXT("NiagaraAreaBoundsComponent"));
	TeleportRingComponent = CreateDefaultSubobject<UNiagaraComponent>(TEXT("NiagaraTeleportRingComponent"));

	if (!PlayerAreaBoundsComponent || !TeleportRingComponent)
	{
		UE_LOG(UltraleapTrackingLog, Error, TEXT("NSPTeleportRing is nullptr in ALeapVisualizer()"));
	}

	if (RootComponent)
	{
		PlayerAreaBoundsComponent->AttachToComponent(RootComponent, FAttachmentTransformRules::KeepRelativeTransform);
		TeleportRingComponent->AttachToComponent(RootComponent, FAttachmentTransformRules::KeepRelativeTransform);
	}

	PlayerAreaBoundsComponent->SetAsset(NSPlayerAreaBounds); 
	TeleportRingComponent->SetAsset(NSPTeleportRing);

}

// Called when the game starts or when spawned
void ALeapVisualizer::BeginPlay()
{
	Super::BeginPlay();

	FVector2D PlayerArea = UHeadMountedDisplayFunctionLibrary::GetPlayAreaBounds();
	FVector PlayerVec = FVector(PlayerArea.X, PlayerArea.Y, 0.0f);
	PlayerAreaBoundsComponent->SetVariableVec3(FName("User.PlayAreaBounds"), PlayerVec);

	World = GetWorld();
	if (World == nullptr)
	{
		UE_LOG(UltraleapTrackingLog, Error, TEXT("World is nullptr in ALeapVisualizer::BeginPlay"));
		return;
	}

	LeapPawn = UGameplayStatics::GetPlayerPawn(World, 0);
	if (LeapPawn == nullptr)
	{
		UE_LOG(UltraleapTrackingLog, Error, TEXT("LeapPawn is nullptr in ALeapVisualizer::BeginPlay"));
		return;
	}
	PlayerCameraManager = UGameplayStatics::GetPlayerCameraManager(World, 0);
	if (PlayerCameraManager == nullptr)
	{
		UE_LOG(UltraleapTrackingLog, Error, TEXT("PlayerCameraManager is nullptr in ALeapVisualizer::BeginPlay"));
		return;
	}
}