#pragma once

#include "CoreMinimal.h"
#include "Subsystems/EngineSubsystem.h"
#include "hidapi.h"


#include "SkyPortalSubsystem.generated.h"


/* Macro Definitions */
#define rw_buf_size  0x21
#define TIMEOUT 30000
#define DEBUG true

DECLARE_LOG_CATEGORY_EXTERN(LogHIDApi, Log, All);
DECLARE_LOG_CATEGORY_EXTERN(LogSkyportalIO, Log, All);

/* Subsystem */
UCLASS()
class SKYPORTAL_API USkyPortalSubsystem : public UEngineSubsystem
{
	GENERATED_BODY()

public:
	// Override initialization and deinitialization methods
	virtual void Initialize(FSubsystemCollectionBase& Collection) override;
	virtual void Deinitialize() override;

	// Connect to Portal, return false if portal is not found
	UFUNCTION(BlueprintCallable, CallInEditor, meta = (Category = "SkyPortal"))
	bool ConnectPortal();

	UPROPERTY(VisibleAnywhere, BlueprintReadOnly)
	bool bPortalConnected = false;

	FString HidError;


	UFUNCTION(BlueprintCallable, CallInEditor, meta = (AutoCreateRefTerm = "Color", Category = "SkyPortal"))
	void ChangePortalColor(const FLinearColor& Color = FLinearColor::Green);








private:
	//Portal ref used in the subsystem
	hid_device* PortalDevice;

	typedef struct {
		unsigned char buf[rw_buf_size]; int BytesTransferred;
	} RWBlock;


	static void Sleep(int sleepMs);


	// Block/byte related data write/read functions
	bool ReadBlock(unsigned int block, unsigned char data[0x10], int skylander);
	bool WriteBlock(unsigned int, unsigned char[0x10], int);
	bool CheckResponse(RWBlock* res, char expect);
	void Write(RWBlock* pb);


protected:

	//Constants
	const int VendorIds[4] = { 0x12ba, 0x54c, 0x1430, 0x1430 };
	const int ProductIds[4] = { 0x150, 0x967, 0x1f17 };



	/////Defaults values, should not be used
	//const int VendorId = 5168;
	//const int ProductId = 336;
};