// Copyright 2025 https://yuewu.dev/en  All Rights Reserved.


#include "Bullet/GCS_BulletSystemComponent.h"

#include "GCS_LogChannels.h"
#include "Bullet/GCS_BulletInstance.h"
#include "Bullet/GCS_BulletSubsystem.h"


// Sets default values for this component's properties
UGCS_BulletSystemComponent::UGCS_BulletSystemComponent()
{
	// Set this component to be initialized when the game starts, and to be ticked every frame.  You can turn these features
	// off to improve performance if you don't need them.
	PrimaryComponentTick.bCanEverTick = false;

	// ...
}


// Called when the game starts
void UGCS_BulletSystemComponent::BeginPlay()
{
	Super::BeginPlay();

	// ...
}

UGCS_BulletSystemComponent* UGCS_BulletSystemComponent::GetBulletSystemComponent(const AActor* Actor)
{
	return IsValid(Actor) ? Actor->FindComponentByClass<UGCS_BulletSystemComponent>() : nullptr;
}

bool UGCS_BulletSystemComponent::FindBulletSystemComponent(const AActor* Actor, UGCS_BulletSystemComponent*& Component)
{
	Component = GetBulletSystemComponent(Actor);
	return Component != nullptr;
}

void UGCS_BulletSystemComponent::SpawnBullet(const FGCS_BulletSpawnParameters& SpawnParameters)
{
	//SpawnBulletInternal(SpawnParameters);
}

// TArray<AGCS_BulletInstance*> UGCS_BulletSystemComponent::SpawnBulletInternal(const FGCS_BulletSpawnParameters& SpawnParameters)
// {
// 	TArray<AGCS_BulletInstance*> RetInstances{};
//
// 	if (GetOwner()->GetLocalRole() < ROLE_AutonomousProxy)
// 	{
// 		GCS_CLOG(Warning, "No authority to spawn bullet!")
// 		return RetInstances;
// 	}
//
// 	UGCS_BulletSubsystem* Subsystem = UGCS_BulletSubsystem::Get(GetWorld());
// 	if (Subsystem == nullptr)
// 	{
// 		return RetInstances;
// 	}
//
// 	FGCS_BulletDefinition Definition;
// 	if (SpawnParameters.DefinitionHandle.IsNull() || !Subsystem->LoadBulletDefinition(SpawnParameters.DefinitionHandle, Definition))
// 	{
// 		return RetInstances;
// 	}
//
// 	RetInstances = Subsystem->GetOrCreateBulletInstances(SpawnParameters, Definition);
//
// 	for (int i = 0; i < RetInstances.Num(); ++i)
// 	{
// 		AGCS_BulletInstance* Instance = RetInstances[i];
//
// 		Instance->bServerInitiated = GetWorld()->GetNetMode() < NM_Client;
// 		Instance->bIsLocalPredicting = SpawnParameters.bIsLocalPredicting;
//
// 		if (SpawnParameters.OverrideBulletIds.IsValidIndex(i))
// 		{
// 			Instance->SetBulletId(SpawnParameters.OverrideBulletIds[0]);
// 		}
// 		else
// 		{
// 			Instance->SetBulletId(FGuid::NewGuid());
// 		}
//
// 		if (SpawnParameters.ParentId.IsValid() && BulletInstances.Contains(SpawnParameters.ParentId))
// 		{
// 			Instance->SetParentBulletId(SpawnParameters.ParentId);
// 			// if (AGCS_BulletInstance* ParentBulletInstance = BulletInstances[SpawnParameters.ParentId])
// 			// {
// 			// 	if (ParentBulletInstance->Definition.bUseSharedHitList)
// 			// 	{
// 			// 		Instance->HitActors = ParentBulletInstance->HitActors;
// 			// 	}
// 			// }
// 		}
//
// 		if (SpawnParameters.Request)
// 		{
// 			Instance->Request = SpawnParameters.Request;
// 		}
//
// 		if (SpawnParameters.Owner)
// 		{
// 			Instance->SetOwner(SpawnParameters.Owner);
// 		}
// 		Instance->SetDefinitionHandle(SpawnParameters.DefinitionHandle);
// 		BulletInstances.Emplace(Instance->BulletId, Instance);
// 	}
//
// 	FRotator OriginalRotation = SpawnParameters.SpawnTransform.Rotator();
// 	for (int i = 0; i < RetInstances.Num(); ++i)
// 	{
// 		FTransform ModifiedTransform = SpawnParameters.SpawnTransform;
// 		FRotator RotationYawOffset(Definition.LaunchElevationAngle, Definition.LaunchAngle + Definition.LaunchAngleInterval * i, 0);
// 		ModifiedTransform.SetRotation(UKismetMathLibrary::ComposeRotators(OriginalRotation, RotationYawOffset).Quaternion());
// 		RetInstances[i]->SetActorTransform(ModifiedTransform, false, nullptr, ETeleportType::ResetPhysics);
// 	}
//
// 	//batch beginplay.
// 	for (AGCS_BulletInstance* Instance : RetInstances)
// 	{
// 		Instance->OnBulletBeginPlay();
// 	}
// 	return RetInstances;
// }