// Copyright IHY. Vertical Partition Streaming plugin.
#include "VerticalPartitionVolume.h"
#include "VerticalPartitionSettings.h"
#include "VerticalPartitionLog.h"
#include "Components/BoxComponent.h"

#if WITH_EDITOR
TFunction<void(AVerticalPartitionVolume*, EVerticalPartitionAction)> FVerticalPartitionEditorBridge::Handler;
#endif

AVerticalPartitionVolume::AVerticalPartitionVolume()
{
	PrimaryActorTick.bCanEverTick = false;

	Box = CreateDefaultSubobject<UBoxComponent>(TEXT("Bounds"));
	SetRootComponent(Box);
	Box->SetBoxExtent(FVector(5000.f, 5000.f, 25000.f));
	Box->SetCollisionEnabled(ECollisionEnabled::NoCollision);
	Box->SetCollisionProfileName(TEXT("NoCollision"));
	Box->SetGenerateOverlapEvents(false);
	Box->ShapeColor = FColor(80, 200, 255);
	Box->bDrawOnlyIfSelected = false;
	Box->SetHiddenInGame(true);

	// Seed per-volume settings from project defaults.
	if (const UVerticalPartitionDeveloperSettings* Project = UVerticalPartitionDeveloperSettings::Get())
	{
		Settings = Project->DefaultSettings;
	}
}

FBox AVerticalPartitionVolume::GetVolumeBounds() const
{
	if (!Box)
	{
		return FBox(ForceInit);
	}
	const FVector Extent = Box->GetScaledBoxExtent();
	const FVector Origin = Box->GetComponentLocation();
	return FBox(Origin - Extent, Origin + Extent);
}

void AVerticalPartitionVolume::OnConstruction(const FTransform& Transform)
{
	Super::OnConstruction(Transform);
}

#if WITH_EDITOR
void AVerticalPartitionVolume::PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent)
{
	Super::PostEditChangeProperty(PropertyChangedEvent);
	// Keep preview drawing fresh when ranges/segmentation change.
	if (Box)
	{
		Box->MarkRenderStateDirty();
	}
}

void AVerticalPartitionVolume::AnalyzeCurrentLevel()  { FVerticalPartitionEditorBridge::Execute(this, EVerticalPartitionAction::Analyze); }
void AVerticalPartitionVolume::BuildVerticalPartition(){ FVerticalPartitionEditorBridge::Execute(this, EVerticalPartitionAction::Build); }
void AVerticalPartitionVolume::RebuildChangedCells()  { FVerticalPartitionEditorBridge::Execute(this, EVerticalPartitionAction::RebuildChangedCells); }
void AVerticalPartitionVolume::RebuildHLOD()          { FVerticalPartitionEditorBridge::Execute(this, EVerticalPartitionAction::RebuildHLOD); }
void AVerticalPartitionVolume::ValidateCells()        { FVerticalPartitionEditorBridge::Execute(this, EVerticalPartitionAction::Validate); }
void AVerticalPartitionVolume::PreviewChunks()        { FVerticalPartitionEditorBridge::Execute(this, EVerticalPartitionAction::PreviewChunks); }
void AVerticalPartitionVolume::SpawnHLODPreview()     { FVerticalPartitionEditorBridge::Execute(this, EVerticalPartitionAction::SpawnHLODPreview); }
void AVerticalPartitionVolume::ClearPreview()         { FVerticalPartitionEditorBridge::Execute(this, EVerticalPartitionAction::ClearPreview); }
void AVerticalPartitionVolume::CommitConversion()     { FVerticalPartitionEditorBridge::Execute(this, EVerticalPartitionAction::Commit); }
void AVerticalPartitionVolume::RestoreFromBackup()    { FVerticalPartitionEditorBridge::Execute(this, EVerticalPartitionAction::RestoreBackup); }
void AVerticalPartitionVolume::ClearGeneratedData()   { FVerticalPartitionEditorBridge::Execute(this, EVerticalPartitionAction::ClearGenerated); }
void AVerticalPartitionVolume::DumpReport()           { FVerticalPartitionEditorBridge::Execute(this, EVerticalPartitionAction::DumpReport); }
#endif