// Portage UE 5.5 - voir LPVictoryCompat.h

#include "LPVictoryCompat.h"

#include "Engine/Texture2D.h"
#include "HAL/PlatformApplicationMisc.h"
#include "IImageWrapper.h"
#include "IImageWrapperModule.h"
#include "Misc/FileHelper.h"
#include "Modules/ModuleManager.h"

namespace
{
	EImageFormat GetJoyImageFormat(EJoyImageFormats JoyFormat)
	{
		switch (JoyFormat)
		{
			case EJoyImageFormats::JPG:  return EImageFormat::JPEG;
			case EJoyImageFormats::PNG:  return EImageFormat::PNG;
			case EJoyImageFormats::BMP:  return EImageFormat::BMP;
			case EJoyImageFormats::ICO:  return EImageFormat::ICO;
			case EJoyImageFormats::EXR:  return EImageFormat::EXR;
			case EJoyImageFormats::ICNS: return EImageFormat::ICNS;
		}
		return EImageFormat::JPEG;
	}
}

UTexture2D* ULPVictoryCompat::Victory_LoadTexture2D_FromFile(const FString& FullFilePath, EJoyImageFormats ImageFormat, bool& IsValid, int32& Width, int32& Height)
{
	IsValid = false;
	UTexture2D* LoadedT2D = nullptr;

	IImageWrapperModule& ImageWrapperModule = FModuleManager::LoadModuleChecked<IImageWrapperModule>(FName("ImageWrapper"));
	TSharedPtr<IImageWrapper> ImageWrapper = ImageWrapperModule.CreateImageWrapper(GetJoyImageFormat(ImageFormat));

	// Load From File
	TArray<uint8> RawFileData;
	if (!FFileHelper::LoadFileToArray(RawFileData, *FullFilePath)) return nullptr;

	// Create T2D!
	if (ImageWrapper.IsValid() && ImageWrapper->SetCompressed(RawFileData.GetData(), RawFileData.Num()))
	{
		TArray<uint8> UncompressedBGRA;
		if (ImageWrapper->GetRaw(ERGBFormat::BGRA, 8, UncompressedBGRA))
		{
			LoadedT2D = UTexture2D::CreateTransient(ImageWrapper->GetWidth(), ImageWrapper->GetHeight(), PF_B8G8R8A8);

			// Valid?
			if (!LoadedT2D) return nullptr;

			// Out!
			Width = ImageWrapper->GetWidth();
			Height = ImageWrapper->GetHeight();

			// Copy!
			// 5.1+ : UTexture2D::PlatformData est prive, on passe par GetPlatformData()
			void* TextureData = LoadedT2D->GetPlatformData()->Mips[0].BulkData.Lock(LOCK_READ_WRITE);
			FMemory::Memcpy(TextureData, UncompressedBGRA.GetData(), UncompressedBGRA.Num());
			LoadedT2D->GetPlatformData()->Mips[0].BulkData.Unlock();

			// Update!
			LoadedT2D->UpdateResource();
		}
	}

	// Success!
	// NOTE : comportement repris tel quel du plugin d'origine. IsValid ne distingue que
	// le fichier introuvable (false, sortie anticipee ci-dessus) du reste (true), y compris
	// quand l'image est illisible et que le retour est nul. Volontairement non corrige :
	// les Blueprints existants branchent sur ce flag, changer sa semantique changerait
	// leur comportement. Voir Docs/Architecture/VictoryPlugin_Architecture.md (R-14).
	IsValid = true;
	return LoadedT2D;
}

void ULPVictoryCompat::Victory_SaveStringToOSClipboard(const FString& ToClipboard)
{
	FPlatformApplicationMisc::ClipboardCopy(*ToClipboard);
}