#################################################################################
#this function builds a cmake patch files out of a list of patches found in Patch folder
#################################################################################
function(PackageWriteMultiPatchFile outvar)
	set(mycommand "")
	#message("------------->${ARGN}<--------")
	foreach(p ${ARGN} )
		if(WIN32)
			set(PATCH_COMMAND_LINE "${PATCH_PROGRAM} -p1 --binary -i ${Package_Dir}/Patch/${p}")
		else()
			set(PATCH_COMMAND_LINE "${PATCH_PROGRAM} -p1 -i ${Package_Dir}/Patch/${p}")
		endif()
		set(mycommand "${mycommand} 
		execute_process(COMMAND ${PATCH_COMMAND_LINE}
			RESULT_VARIABLE status_code
			OUTPUT_VARIABLE log)
		if(NOT status_code EQUAL 0)
			message(FATAL_ERROR \"patch error in line: ${PATCH_COMMAND_LINE}
				status_code: \${status_code}
				log: \${log}
			\")
		endif()
		")
	endforeach(p)
	set(${outvar} ${mycommand} PARENT_SCOPE)
	#debug_message("--->${mycommand}<--")

endfunction(PackageWriteMultiPatchFile)








function(PackageBinaryAdd)
	debug_message("!!!!! building ${PACKAGE} in  ${download_subfolder} with depnds-->${Package_current_dependencies_effective_line}<--")
	ExternalProject_Add(
		${PACKAGE}-GetSource
		SOURCE_DIR ${Package_Source_Dir}
		DOWNLOAD_DIR ${Package_Download_Dir}
		STAMP_DIR ${Package_Source_Stamp_Dir}
		${Package_source_setup}
		CONFIGURE_COMMAND ""
		BUILD_COMMAND ""
		INSTALL_COMMAND ""
	)
	if(Package_current_dependencies_effective_line)
		set( Package_current_dependencies_effective_line ${Package_current_dependencies_effective_line} ${PACKAGE}-GetSource)
	else()
		set(Package_current_dependencies_effective_line DEPENDS ${PACKAGE}-GetSource)
	endif()

	ExternalProject_Add(
		${PACKAGE}
		${Package_std_dirs}
		DOWNLOAD_COMMAND ""
		INSTALL_COMMAND ${CMAKE_COMMAND} -E copy_directory <SOURCE_DIR> <INSTALL_DIR>
		CONFIGURE_COMMAND ""
		BUILD_COMMAND ""
		${Package_current_dependencies_effective_line}
		STEP_TARGETS build install
	)



endfunction(PackageBinaryAdd)



function(PackageCmakeAdd)

	ExternalProject_Add(
		${PACKAGE}-GetSource
		SOURCE_DIR ${Package_Source_Dir}
		DOWNLOAD_DIR ${Package_Download_Dir}
		STAMP_DIR ${Package_Source_Stamp_Dir}
		${Package_source_setup}
		CONFIGURE_COMMAND ""
		BUILD_COMMAND ""
		INSTALL_COMMAND ""
	)


	if(Package_current_dependencies_effective_line)
		set( Package_current_dependencies_effective_line ${Package_current_dependencies_effective_line} ${PACKAGE}-GetSource)
	else()
		set(Package_current_dependencies_effective_line DEPENDS ${PACKAGE}-GetSource)
	endif()

	if(EXTERNAL_ASSEMBLY_BUILD_COMMAND)
		set(make_command BUILD_COMMAND ${EXTERNAL_ASSEMBLY_BUILD_COMMAND})
	else()
		set(make_command "")
	endif()

	debug_message("Package ${PACKAGE} specific_cmake_args---->${Package_specific_cmake_args}<---")
	debug_message("Package ${PACKAGE} std_cmake_args---->${Package_std_cmake_args}<---")

	ExternalProject_Add(
		${PACKAGE}
		${Package_std_dirs}
		DOWNLOAD_COMMAND ""
		${make_command}
		CMAKE_GENERATOR ${CMAKE_GENERATOR}
		CMAKE_ARGS 
			${Package_std_cmake_args}
			${Package_specific_cmake_args}
		${Package_current_dependencies_effective_line} 
		STEP_TARGETS configure build install
		LOG_BUILD 1 LOG_INSTALL 1 LOG_CONFIGURE 1
	)
endfunction(PackageCmakeAdd)





function(PackageUnixConfigureAdd)
	message("Package -->${PACKAGE}<--InSource->${Package_InSource}<-")
	if(Package_InSource)
		set(conf_command_body ./configure  --prefix=<INSTALL_DIR>)
	else()
		if(Package_nosrcdir)
			set(conf_command_body <SOURCE_DIR>/configure --prefix=<INSTALL_DIR>)
		else()
			set(conf_command_body <SOURCE_DIR>/configure --srcdir=<SOURCE_DIR> --prefix=<INSTALL_DIR>)
		endif()
	endif()
	if(Package_configure_flags)
		set(conf_command_body ${conf_command_body} ${Package_configure_flags})
	endif()
	if(Package_PkgConfig)
		string(REPLACE ";" "@@" managed_conf_command_body "${conf_command_body}" )
		set(conf_command CONFIGURE_COMMAND ${CMAKE_COMMAND} -Dmy_binary_dir:PATH=<BINARY_DIR> -Dmy_source_dir:PATH=<SOURCE_DIR> -Dmy_install_dir:PATH=<INSTALL_DIR> -Dmy_configure:STRING=${managed_conf_command_body} -P ${_mymoduledir}/pkgconfig_env.cmake) 

		set(make_command_body make --jobs 4)
		string(REPLACE ";" "@@" managed_make_command_body "${make_command_body}" )
		set(make_command BUILD_COMMAND ${CMAKE_COMMAND} -Dmy_binary_dir:PATH=<BINARY_DIR> -Dmy_source_dir:PATH=<SOURCE_DIR> -Dmy_install_dir:PATH=<INSTALL_DIR> -Dmy_configure:STRING=${managed_make_command_body} -P ${_mymoduledir}/pkgconfig_env.cmake) 
		set(list_separator "LIST_SEPARATOR @@")
	else()
		set(conf_command CONFIGURE_COMMAND ${conf_command_body})
		set(list_separator "")
	endif()
		debug_message("conf_command---->${conf_command}<---")

	ExternalProject_Add(
		${PACKAGE}-GetSource
		SOURCE_DIR ${Package_Source_Dir}
		DOWNLOAD_DIR ${Package_Download_Dir}
		STAMP_DIR ${Package_Source_Stamp_Dir}
		${Package_source_setup}
		UPDATE_COMMAND ""
		CONFIGURE_COMMAND ""
		BUILD_COMMAND ""
		INSTALL_COMMAND ""
	)

	if(Package_current_dependencies_effective_line)
		set( Package_current_dependencies_effective_line ${Package_current_dependencies_effective_line} ${PACKAGE}-GetSource)
	else()
		set(Package_current_dependencies_effective_line DEPENDS ${PACKAGE}-GetSource)
	endif()

	ExternalProject_Add(
		${PACKAGE}
		${Package_std_dirs}
		${Package_current_dependencies_effective_line} 
		DOWNLOAD_COMMAND ""	
		${conf_command}
		${make_command}
		${list_separator}
		STEP_TARGETS configure build install
		LOG_BUILD 1 LOG_INSTALL 1 LOG_CONFIGURE 1
	)
	debug_message("

	ExternalProject_Add(
		${PACKAGE}
		${Package_std_dirs}
		${Package_current_dependencies_effective_line} 
		DOWNLOAD_COMMAND ""	
		${conf_command}
		${make_command}
		${list_separator}
		STEP_TARGETS configure build install
	)

	")
# 		ExternalProject_Add(
# 			${PACKAGE}
# 			${Package_std_dirs}
# 			${Package_current_dependencies_effective_line}
# 			URL ${URL}
# 			${conf_command}
# 			${make_command}
# 			${list_separator}
# 
# 			#CONFIGURE_COMMAND  ./configure  --prefix=<INSTALL_DIR>
# 		)
	if(Package_InSource)
		ExternalProject_Add_Step(${PACKAGE} copy_source
			COMMAND ${CMAKE_COMMAND} -E copy_directory <SOURCE_DIR> <BINARY_DIR>
			COMMENT "copying <SOURCE_DIR> to <BINARY_DIR>"
			DEPENDEES download update patch
			DEPENDERS configure
		)
	endif()
#	if(Package_PkgConfig)
#		ExternalProject_Add_Step(${PACKAGE} install_pkgconfig
#			COMMAND ${CMAKE_GENERATOR} install-pkgconfigDATA
#			COMMENT "installing pkgconfig"
#			DEPENDEES install
#		)
#	endif()

endfunction(PackageUnixConfigureAdd)


function(PackageUnixAddCmakeVarsToConfigureFlags)
	if(CMAKE_C_FLAGS)
		set(Package_configure_flags ${Package_configure_flags} "CFLAGS=${CMAKE_C_FLAGS}")
	endif()
	if(CMAKE_C_COMPILER)
		set(Package_configure_flags ${Package_configure_flags} "CC=${CMAKE_C_COMPILER}")
	endif()
	if(CMAKE_CXX_FLAGS)
		set(Package_configure_flags ${Package_configure_flags} "CXXFLAGS=${CMAKE_CXX_FLAGS}")
	endif()
	if(CMAKE_CXX_COMPILER)
		set(Package_configure_flags ${Package_configure_flags} "CXX=${CMAKE_CXX_COMPILER}")
	endif()
	set(Package_configure_flags "${Package_configure_flags}" PARENT_SCOPE)
endfunction(PackageUnixAddCmakeVarsToConfigureFlags)

function(PackageUnixPkgConfigInstall LIBNAME PKGFILENAME)
		ExternalProject_Add_Step(${PACKAGE} install_pkgconfig
			COMMAND ${CMAKE_COMMAND} -Dprefix:PATH=<INSTALL_DIR> -Dname:STRING=${PACKAGE} -Dversion:STRING=${VERSION} -Dlibname:STRING=${LIBNAME} -Dpkgfilename:string=${PKGFILENAME} -Dincludepostfix:string="${_includepostfix}" -P ${_mymoduledir}/pkgconfig_lib_configure.cmake
			COMMENT "installing pkgconfig"
			DEPENDEES install
		)
endfunction(PackageUnixPkgConfigInstall)

message("!!!!!!!!!!!!!!!!!!!!!!!!!!uffffffaaaaaaaaa!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!")

function(PackagePythonSetupSimpleAdd)
	PackageGetSource()
	debug_message("
	ExternalProject_Add(
		${PACKAGE}
		${Package_std_dirs}
		${Package_current_dependencies_effective_line} 
		DOWNLOAD_COMMAND ""	
		CONFIGURE_COMMAND ""
		BUILD_COMMAND   ${PYTHON_EXECUTABLE} <SOURCE_DIR>/setup.py build   --build-base=<BINARY_DIR>
		INSTALL_COMMAND ${PYTHON_EXECUTABLE} <SOURCE_DIR>/setup.py install --prefix=<INSTALL_DIR>
		STEP_TARGETS configure build install
	)
	")
	ExternalProject_Add(
		${PACKAGE}
		${Package_std_dirs}
		${Package_current_dependencies_effective_line} 
		DOWNLOAD_COMMAND ""	
		CONFIGURE_COMMAND ""
		BUILD_COMMAND   ${CMAKE_COMMAND} -E chdir <SOURCE_DIR> ${PYTHON_EXECUTABLE} setup.py build   --build-base=<BINARY_DIR>
		INSTALL_COMMAND ${CMAKE_COMMAND} -E chdir <SOURCE_DIR> ${PYTHON_EXECUTABLE} setup.py install --prefix=<INSTALL_DIR>
		STEP_TARGETS configure build install
		LOG_BUILD 1 LOG_INSTALL 1
	)

# 	file(TO_NATIVE_PATH ${EXTERNAL_ASSEMBLY_COMMON_PREFIX} _install_dir)
# 	ExternalProject_Add(
# 		${PACKAGE}
# 		${Package_std_dirs}
# 		URL ${URL}
# 		URL_MD5 ${URL_MD5}
# 		CONFIGURE_COMMAND ""
# 		INSTALL_COMMAND ${CMAKE_COMMAND} -E chdir <SOURCE_DIR> ${PYTHON_EXECUTABLE} setup.py build --build-base=<BINARY_DIR> install --prefix=${_install_dir}
# 		BUILD_COMMAND ""
# 	)
# 	message("INSTALL_COMMAND-->${CMAKE_COMMAND} -E chdir <SOURCE_DIR> ${PYTHON_EXECUTABLE} setup.py build --build-base=<BINARY_DIR> install --prefix=${_install_dir}<----")
endfunction(PackagePythonSetupSimpleAdd)