#pragma once

#include "platform.h"

// Compiler/Linker detection 
// Possible values:
// TOOLCHAIN:
// - TL_TOOLCHAIN_CLANG	(LLVM/CLANG)
// - TL_TOOLCHAIN_GNU		(GCC TOOLS)
// - TL_TOOLCHAIN_MSC		(Microsoft Visual Studio)
// VERSION:
// - TL_TOOLCHAIN_MAJOR
// - TL_TOOLCHAIN_MINOR
// - TL_TOOLCHAIN_REVISION

#if defined(__clang__)

// CLANG needs to be detected first because CLANG also defined GNUC or GNUG

#	define TL_TOOLCHAIN_CLANG
#	define TL_TOOLCHAIN_MAJOR		__clang_major__
#	define TL_TOOLCHAIN_MINOR		__clang_minor__
#	define TL_TOOLCHAIN_REVISION	__clang_patchlevel__

// Check for a valid toolchain version
#	if TL_TOOLCHAIN_MAJOR < 3 && TL_TOOLCHAIN_MINOR < 6
#		error "Not supported toolchain"
#	endif

#elif defined(__GNUC__)

#	define TL_TOOLCHAIN_GNU
#	define TL_TOOLCHAIN_MAJOR		__GNUC__
#	define TL_TOOLCHAIN_MINOR		__GNUC_MINOR__
#	define TL_TOOLCHAIN_REVISION	__GNUC_PATCHLEVEL__

// Check for a valid toolchain version
#	if TL_TOOLCHAIN_MAJOR < 4 && TL_TOOLCHAIN_MINOR < 9 
#		error "Not supported toolchain"
#	elif TL_TOOLCHAIN_MAJOR == 4 && TL_TOOLCHAIN_MINOR == 9 
#		if defined(TL_PLATFORM_LINUX_FAMILY) && (TL_TOOLCHAIN_REVISION < 2)
#			error "Not supported toolchain"
#		endif
#	endif

#elif  defined(_MSC_VER)

#	define TL_TOOLCHAIN_MSC

#	if _MSC_VER <= 1912 // VISUAL STUDIO 2017 15.5
#		define TL_TOOLCHAIN_MAJOR 14
#		define TL_TOOLCHAIN_MINOR 12
#	elif _MSC_VER <= 1913 // VISUAL STUDIO 2017 15.6
#		define TL_TOOLCHAIN_MAJOR 14
#		define TL_TOOLCHAIN_MINOR 13
#	elif _MSC_VER <= 1914 // VISUAL STUDIO 2017 15.7
#		define TL_TOOLCHAIN_MAJOR 14
#		define TL_TOOLCHAIN_MINOR 14
#	else //_MSC_VER is 1915 or higher // VISUAL STUDIO 2017 15.8
#		define TL_TOOLCHAIN_MAJOR 14
#		define TL_TOOLCHAIN_MINOR 15
#	endif

#	define TL_TOOLCHAIN_REVISION		(_MSC_FULL_VER - _MSC_VER * 100000)		// Extract revision (build number)
#	define TL_TOOLCHAIN_BUILD_NUMBER	_MSC_BUILD								// Real MSC Revision

//////////////////////////////////////////////////////////////////////////
// Disabled warnings for VS2013:
//
//	C4503: 'identifier' : decorated name length exceeded, name was truncated
//		From: https://msdn.microsoft.com/en-us/library/074af4b6.aspx
//		"The correctness of the program, however, is unaffected by the truncated name."
//	C4250: 'class1' : inherits 'class2::member' via dominance

#	if TL_TOOLCHAIN_MAJOR >= 12 && TL_TOOLCHAIN_MAJOR < 15
#		pragma warning( disable : 4503)
#		pragma warning( disable : 4250)
#	endif

#	if TL_TOOLCHAIN_MAJOR == 14
#		pragma warning( disable : 4577)
#	endif

//////////////////////////////////////////////////////////////////////////


// Check for a valid toolchain version
#	if TL_TOOLCHAIN_MAJOR < 12
#		error "Not supported toolchain"
#	endif

#else

#	error Unknown Toolchain please provide BAR team more info.

#endif