cmake_minimum_required(VERSION 3.11)
set(CMAKE_CXX_STANDARD 20)
project(LuaGate)

include_directories(sources)

if (CMAKE_COMPILER_IS_GNUCXX)
	set(GCC_COVERAGE_COMPILE_FLAGS "-Wall -Wextra -Werror -Wshadow")
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${GCC_COVERAGE_COMPILE_FLAGS}")
endif ()

set(HEADERS
	sources/LuaGate.hpp
)

set(SRC
	sources/LuaGate.cpp
)

add_library(LuaGate STATIC ${SRC} ${HEADERS})
if (EMSCRIPTEN)
	include(ExternalProject)
	ExternalProject_Add(LUA
		SOURCE_DIR ${CMAKE_SOURCE_DIR}/lib/Lua
		URL http://www.lua.org/ftp/lua-5.4.3.tar.gz
		DOWNLOAD_DIR ${CMAKE_SOURCE_DIR}/lib/Lua
		BUILD_IN_SOURCE 1
		CONFIGURE_COMMAND echo "Trololol"
		BUILD_COMMAND make generic CC="emcc" 'AR="emar rcu"' RANLIB="emranlib"
		INSTALL_COMMAND cmake -E echo "Ta mere en slip"
	)
	set(LUA_INCLUDE_DIR ${CMAKE_SOURCE_DIR}/lib/Lua/src)
	set(LUA_LIBRARIES ${CMAKE_SOURCE_DIR}/lib/Lua/src/liblua.a)
	add_dependencies(LuaGate LUA)
else()
	include(FindLua)
	if (NOT LUA_FOUND)
		if (EXISTS ${CMAKE_SOURCE_DIR}/include/lua.hpp)
			message("Using local lua")
			set(LUA_INCLUDE_DIR ${CMAKE_SOURCE_DIR}/include/)
			set(LUA_LIBRARIES ${CMAKE_SOURCE_DIR}/lua54.lib)
		else()
			message(FATAL_ERROR "Lua could not be found.")
		endif()
	endif()
endif()

target_include_directories(LuaGate PUBLIC ${LUA_INCLUDE_DIR})
target_link_libraries(LuaGate ${LUA_LIBRARIES})