# Copyright (C) 2020 - 2023 by Pedro Mendes, Rector and Visitors of the 
# University of Virginia, University of Heidelberg, and University 
# of Connecticut School of Medicine. 
# All rights reserved. 

set(LIBUUID_DEFINITIONS ${PKG_LIBUUID_CFLAGS_OTHER})
set(LIBUUID_VERSION ${PKG_LIBUUID_VERSION})

string(TOUPPER ${PROJECT_NAME} _UPPER_PROJECT_NAME)
set(_PROJECT_DEPENDENCY_DIR ${_UPPER_PROJECT_NAME}_DEPENDENCY_DIR)

# first check in dependencies only

find_path(LIBUUID_INCLUDE_DIR
	NAMES uuid/uuid.h
	HINTS ${PKG_LIBUUID_INCLUDE_DIRS} ${PKG_LIBUUID_INCLUDE_DIRS}/..
	${${_PROJECT_DEPENDENCY_DIR}}/${CMAKE_INSTALL_LIBDIR}
	${${_PROJECT_DEPENDENCY_DIR}}/include
	${${_PROJECT_DEPENDENCY_DIR}}
	CMAKE_FIND_ROOT_PATH_BOTH
	NO_DEFAULT_PATH
)


find_library(LIBUUID_LIBRARY
	NAMES uuid
	HINTS ${PKG_LIBUUID_LIBRARY_DIRS}
	${${_PROJECT_DEPENDENCY_DIR}}/${CMAKE_INSTALL_LIBDIR}
	${${_PROJECT_DEPENDENCY_DIR}}/lib
	${${_PROJECT_DEPENDENCY_DIR}}
	CMAKE_FIND_ROOT_PATH_BOTH
	NO_DEFAULT_PATH
)

# then only use pkg-config if not found in dependencies
if (NOT LIBUUID_INCLUDE_DIR OR NOT LIBUUID_LIBRARY)

find_package(PkgConfig)

pkg_check_modules(PKG_LIBUUID QUIET uuid)

find_path(LIBUUID_INCLUDE_DIR
	NAMES uuid/uuid.h
	HINTS ${PKG_LIBUUID_INCLUDE_DIRS} ${PKG_LIBUUID_INCLUDE_DIRS}/..
	${${_PROJECT_DEPENDENCY_DIR}}/${CMAKE_INSTALL_INCLUDEDIR}
	${${_PROJECT_DEPENDENCY_DIR}}/include
	${${_PROJECT_DEPENDENCY_DIR}}
	CMAKE_FIND_ROOT_PATH_BOTH
)

find_library(LIBUUID_LIBRARY
	NAMES uuid
	HINTS ${PKG_LIBUUID_LIBRARY_DIRS}
	${${_PROJECT_DEPENDENCY_DIR}}/${CMAKE_INSTALL_LIBDIR}
	${${_PROJECT_DEPENDENCY_DIR}}/lib
	${${_PROJECT_DEPENDENCY_DIR}}
	CMAKE_FIND_ROOT_PATH_BOTH
)

endif()

include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(LIBUUID
	FOUND_VAR
		LIBUUID_FOUND
	REQUIRED_VARS
		LIBUUID_LIBRARY
		LIBUUID_INCLUDE_DIR
	VERSION_VAR
		LIBUUID_VERSION
)

if(LIBUUID_FOUND AND NOT TARGET LibUUID::UUID)
	add_library(LibUUID::UUID UNKNOWN IMPORTED)
	set_target_properties(LibUUID::UUID PROPERTIES
		IMPORTED_LOCATION "${LIBUUID_LIBRARY}"
		INTERFACE_COMPILE_OPTIONS "${LIBUUID_DEFINITIONS}"
		INTERFACE_INCLUDE_DIRECTORIES "${LIBUUID_INCLUDE_DIR}"
	)
endif()

mark_as_advanced(LIBUUID_INCLUDE_DIR LIBUUID_LIBRARY)

include(FeatureSummary)
set_package_properties(LIBUUID PROPERTIES
	URL "http://www.kernel.org/pub/linux/utils/util-linux/"
	DESCRIPTION "uuid library in util-linux"
)