#pragma once

#include "ehs/Types.h"
#include "Architecture.h"
#include "OS.h"
#include "ehs/Str.h"
#include "ehs/Array.h"

namespace ehs
{
	enum class Architecture : UInt_8
	{
		X64,
		X86,
		ARM64,
		ARM,
		UNKNOWN
	};

    enum class Endianness : UInt_8
    {
        LE,
        BE
    };

    struct TSC
    {
        UInt_32 coreId = 0;
        UInt_32 highCount = 0;
        UInt_32 lowCount = 0;
    };

	class CPU
	{
    private:
        #ifdef EHS_OS_LINUX
            static UInt_64 TSC_Freq;
        #endif

	public:
		static Architecture GetArchitecture();

		static UInt_8 PointerSize();

        static Endianness GetEndianness();

        static void RDTSCP(TSC* tsc);

		static UInt_64 GetTSC_Freq();

		static UInt_64 GetTSC();

        /// Retrieves the CPU manufacturer id as a non null-terminated ASCII string.
        /// @param[out] input A twelve byte character array representing the manufacturer id.
		static void GetManufacturer(Char_8* input);

        static UInt_32 GetInfoBits();

		static UInt_8 GetSteppingId();

		static UInt_8 GetModelId();

		static UInt_8 GetFamilyId();

		static UInt_8 GetProcessorTypeId();

		static UInt_8 GetExtModelId();

		static UInt_8 GetExtFamilyId();

		static UInt_32 GetFeatureBits_1();

		static bool HasFPU();

		static bool HasVME();

		static bool HasDE();

		static bool HasPSE();

		static bool HasTSC();

		static bool HasMSR();

		static bool HasPAE();

		static bool HasMCE();

		static bool HasCX8();

		static bool HasAPIC();

		static bool HasSEP();

		static bool HasMTRR();

		static bool HasPGE();

		static bool HasMCA();

		static bool HasCMOV();

		static bool HasPAT();

		static bool HasPSE_36();

		static bool HasPSN();

		static bool HasCLFSH();

		static bool HasDS();

		static bool HasACPI();

		static bool HasMMX();

		static bool HasFXSR();

		static bool HasSSE();

		static bool HasSSE2();

		static bool HasSS();

		static bool HasHTT();

		static bool HasTM();

		static bool HasIA64();

		static bool HasPBE();

        static UInt_32 GetFeatureBits_2();

        static bool HasSSE3();

        static bool HasPCLMULQDQ();

        static bool HasDTES64();

        static bool HasMONITOR();

        static bool HasDS_CPL();

        static bool HasVMX();

        static bool HasSMX();

        static bool HasEST();

        static bool HasTM2();

        static bool HasSSSE3();

        static bool HasCNXT_ID();

        static bool HasSDBG();

        static bool HasFMA();

        static bool HasCX16();

        static bool HasXTPR();

        static bool HasPDCM();

        static bool HasPCID();

        static bool HasDCA();

        static bool HasSSE4_1();

        static bool HasSSE4_2();

        static bool HasX2APIC();

        static bool HasMOVBE();

        static bool HasPOPCNT();

        static bool HasTSC_DEADLINE();

        static bool HasAES();

        static bool HasXSAVE();

        static bool HasOSXSAVE();

        static bool HasAVX();

        static bool HasF16C();

        static bool HasRDRND();

        static bool HasHYPERVISOR();

        static UInt_32 GetExtFeatureBits_1();

        static bool HasAVX2();

        static bool HasRDSEED();

        static bool HasADX();

        static UInt_32 GetExtFeatureBits_2();

        static UInt_32 GetExtFeatureBits_3();

        /// Retrieves the CPU brand as a null-terminated ASCII string.
        /// @param[out] input A 48 byte character array representing the brand.
		static void GetBrand(Char_8* input);

		//static Str_8 ToStr();

    private:
        static UInt_64 RetrieveTSC_Freq();

        static UInt_64 CalculateTSC_Freq();
	};
}