find_program(CLANG_TIDY clang-tidy)
if(NOT CLANG_TIDY)
	message(STATUS "Did not find clang-tidy, target tidy is disabled.")
else()
	message(STATUS "Found clang-tidy, use \"make tidy\" to run it.")
	if ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang") # Matches "Clang" and "AppleClang"
		if (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 5)
			message(STATUS "Please enable readability-redundant-member-init (disabled due to #32966)")
		endif()
	endif()

	set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
	set(CLANG_TIDY_CHECKS "*")
	
	set(CLANG_TIDY_CHECKS "${CLANG_TIDY_CHECKS},-llvm-header-guard")
	set(CLANG_TIDY_CHECKS "${CLANG_TIDY_CHECKS},-llvm-include-order")
	set(CLANG_TIDY_CHECKS "${CLANG_TIDY_CHECKS},-llvm-namespace-comment")
	set(CLANG_TIDY_CHECKS "${CLANG_TIDY_CHECKS},-readability-else-after-return")
	set(CLANG_TIDY_CHECKS "${CLANG_TIDY_CHECKS},-misc-macro-parentheses")
	set(CLANG_TIDY_CHECKS "${CLANG_TIDY_CHECKS},-clang-analyzer-alpha.core.CastToStruct")
	# Modernize
	set(CLANG_TIDY_CHECKS "${CLANG_TIDY_CHECKS},-modernize-raw-string-literal")
	# CPP Core Guidelines
	set(CLANG_TIDY_CHECKS "${CLANG_TIDY_CHECKS},-cppcoreguidelines-pro-bounds-array-to-pointer-decay")
	set(CLANG_TIDY_CHECKS "${CLANG_TIDY_CHECKS},-cppcoreguidelines-pro-bounds-constant-array-index")
	set(CLANG_TIDY_CHECKS "${CLANG_TIDY_CHECKS},-cppcoreguidelines-pro-bounds-pointer-arithmetic")
	set(CLANG_TIDY_CHECKS "${CLANG_TIDY_CHECKS},-cppcoreguidelines-pro-type-member-init") # as of https://llvm.org/bugs/show_bug.cgi?id=31039
	set(CLANG_TIDY_CHECKS "${CLANG_TIDY_CHECKS},-cppcoreguidelines-pro-type-reinterpret-cast")
	set(CLANG_TIDY_CHECKS "${CLANG_TIDY_CHECKS},-cppcoreguidelines-pro-type-vararg")
	# Google
	set(CLANG_TIDY_CHECKS "${CLANG_TIDY_CHECKS},-google-readability-namespace-comments")
	set(CLANG_TIDY_CHECKS "${CLANG_TIDY_CHECKS},-google-readability-braces-around-statements,-readability-braces-around-statements")
	set(CLANG_TIDY_CHECKS "${CLANG_TIDY_CHECKS},-google-readability-todo")
	set(CLANG_TIDY_CHECKS "${CLANG_TIDY_CHECKS},-google-runtime-int")
	set(CLANG_TIDY_CHECKS "${CLANG_TIDY_CHECKS},-google-runtime-references")
	set(CLANG_TIDY_CHECKS "-checks='${CLANG_TIDY_CHECKS}'")
	#message(STATUS "Enabled checks for clang-tidy: ${CLANG_TIDY_CHECKS}")
endif()

find_program(CLANG_FORMAT clang-format)
if(NOT CLANG_FORMAT)
	message(STATUS "Did not find clang-format, target format is disabled.")
else()
	message(STATUS "Found clang-format, use \"make format\" to run it.")
	
	add_custom_target(format
		COMMAND find ./ -iname "*.h" -o -iname "*.tpp" -o -iname "*.cpp" | xargs ${CLANG_FORMAT} -style=file -i -verbose
		WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/src/
	)
endif()