project(minetest)
cmake_minimum_required( VERSION 2.6 )

# Set some random things default to not being visible in the GUI
mark_as_advanced(EXECUTABLE_OUTPUT_PATH LIBRARY_OUTPUT_PATH)
mark_as_advanced(JTHREAD_INCLUDE_DIR JTHREAD_LIBRARY)
mark_as_advanced(SQLITE3_INCLUDE_DIR SQLITE3_LIBRARY)

# user-visible option to enable/disable gettext usage
OPTION(ENABLE_GETTEXT "Use GetText for internationalization" 0)

# this is only set to 1 if gettext is enabled _and_ available
set(USE_GETTEXT 0)

if(ENABLE_GETTEXT)
	find_package(GettextLib)
else()
	MARK_AS_ADVANCED(GETTEXT_ICONV_DLL GETTEXT_INCLUDE_DIR GETTEXT_LIBRARY GETTEXT_MSGFMT)
endif()

if(GETTEXT_FOUND AND ENABLE_GETTEXT)
	message(STATUS "gettext include path: ${GETTEXT_INCLUDE_DIR}")
	message(STATUS "gettext msgfmt path: ${GETTEXT_MSGFMT}")
	if(WIN32)
		message(STATUS "gettext library: ${GETTEXT_LIBRARY}")
		message(STATUS "gettext dll: ${GETTEXT_DLL}")
		message(STATUS "gettext iconv dll: ${GETTEXT_ICONV_DLL}")
	endif()
	set(USE_GETTEXT 1)
	message(STATUS "GetText enabled; locales found: ${GETTEXT_AVAILABLE_LOCALES}")
elseif(GETTEXT_FOUND AND NOT ENABLE_GETTEXT)
	MESSAGE(STATUS "GetText found but disabled;")
else(GETTEXT_FOUND AND ENABLE_GETTEXT)
	message(STATUS "GetText disabled")
endif(GETTEXT_FOUND AND ENABLE_GETTEXT)

# user visible option to enable/disable sound
OPTION(ENABLE_SOUND "Enable sound" ON)

# this is only set to 1 if sound is enabled _and_ available
set(USE_SOUND 0)
set(SOUND_PROBLEM 0)

if(ENABLE_SOUND AND BUILD_CLIENT)
	# Sound libraries
	find_package(OpenAL)
	find_package(Vorbis)
	if(NOT OPENAL_FOUND)
		message(STATUS "Sound enabled, but OpenAL not found!")
		set(SOUND_PROBLEM 1)
		MARK_AS_ADVANCED(CLEAR OPENAL_LIBRARY OPENAL_INCLUDE_DIR)
	endif()
	if(NOT VORBIS_FOUND)
		message(STATUS "Sound enabled, but Vorbis libraries not found!")
		set(SOUND_PROBLEM 1)
		MARK_AS_ADVANCED(CLEAR OGG_INCLUDE_DIR VORBIS_INCLUDE_DIR OGG_LIBRARY VORBIS_LIBRARY VORBISFILE_LIBRARY)
	endif()
	if(OPENAL_FOUND AND VORBIS_FOUND)
		set(USE_SOUND 1)
		message(STATUS "Sound enabled")
	endif()
endif(ENABLE_SOUND AND BUILD_CLIENT)

if(SOUND_PROBLEM)
	message(FATAL_ERROR "Sound enabled, but cannot be used.\n"
		"To continue, either fill in the required paths or disable sound. (-DENABLE_SOUND=0)")
endif()
if(USE_SOUND)
	set(sound_SRCS sound_openal.cpp)
	set(SOUND_INCLUDE_DIRS
		${OPENAL_INCLUDE_DIR}
		${VORBIS_INCLUDE_DIR}
		${OGG_INCLUDE_DIR}
		)
	set(SOUND_LIBRARIES
		${OPENAL_LIBRARY}
		${VORBIS_LIBRARIES}
		)
endif()

if(NOT MSVC)
	set(USE_GPROF 0 CACHE BOOL "Use -pg flag for g++")
endif()

# Use cmake_config.h
add_definitions ( -DUSE_CMAKE_CONFIG_H )

if(WIN32)
	# Windows
	if(MSVC) # MSVC Specifics
		# Surpress some useless warnings
		add_definitions ( /D "_CRT_SECURE_NO_DEPRECATE" /W1 )
	else() # Probably MinGW = GCC
		set(PLATFORM_LIBS ws2_32.lib)
	endif()
	# Zlib stuff
	set(ZLIB_INCLUDE_DIR "${PROJECT_SOURCE_DIR}/../../zlib/zlib-1.2.5"
			CACHE PATH "Zlib include directory")
	set(ZLIB_LIBRARIES "${PROJECT_SOURCE_DIR}/../../zlib125dll/dll32/zlibwapi.lib"
			CACHE FILEPATH "Path to zlibwapi.lib")
	set(ZLIB_DLL "${PROJECT_SOURCE_DIR}/../../zlib125dll/dll32/zlibwapi.dll"
			CACHE FILEPATH "Path to zlibwapi.dll (for installation)")
	set(IRRLICHT_SOURCE_DIR "${PROJECT_SOURCE_DIR}/../../irrlicht-1.7.2"
			CACHE PATH "irrlicht dir")
	set(MINGWM10_DLL ""
			CACHE FILEPATH "Path to mingwm10.dll (for installation)")
	if(ENABLE_SOUND)
		set(OPENAL_DLL "" CACHE FILEPATH "Path to OpenAL32.dll for installation (optional)")
		set(OGG_DLL "" CACHE FILEPATH "Path to libogg.dll for installation (optional)")
		set(VORBIS_DLL "" CACHE FILEPATH "Path to libvorbis.dll for installation (optional)")
		set(VORBISFILE_DLL "" CACHE FILEPATH "Path to libvorbisfile.dll for installation (optional)")
	endif()
else()
	# Unix probably
	if(BUILD_CLIENT)
		find_package(X11 REQUIRED)
		find_package(OpenGL REQUIRED)
		find_package(JPEG REQUIRED)
		find_package(BZip2 REQUIRED)
		find_package(PNG REQUIRED)
		if(APPLE)
			FIND_LIBRARY(CARBON_LIB Carbon)
			FIND_LIBRARY(COCOA_LIB Cocoa)
			FIND_LIBRARY(IOKIT_LIB IOKit)
			mark_as_advanced(
				CARBON_LIB
				COCOA_LIB
				IOKIT_LIB
			)
			SET(CLIENT_PLATFORM_LIBS ${CLIENT_PLATFORM_LIBS} ${CARBON_LIB} ${COCOA_LIB} ${IOKIT_LIB})
		endif(APPLE)
	endif(BUILD_CLIENT)
	find_package(ZLIB REQUIRED)
	set(PLATFORM_LIBS -lpthread ${CMAKE_DL_LIBS})
	#set(CLIENT_PLATFORM_LIBS -lXxf86vm)
	# This way Xxf86vm is found on OpenBSD too
	find_library(XXF86VM_LIBRARY Xxf86vm)
	mark_as_advanced(XXF86VM_LIBRARY)
	set(CLIENT_PLATFORM_LIBS ${CLIENT_PLATFORM_LIBS} ${XXF86VM_LIBRARY})
endif()

find_package(Jthread REQUIRED)
find_package(Sqlite3 REQUIRED)

# Do not use system-wide installation of Lua, because it'll likely be a
# different version and/or has different build options.
set(LUA_INCLUDE_DIR "${PROJECT_SOURCE_DIR}/lua/src")
set(LUA_LIBRARY "lua")

configure_file(
	"${PROJECT_SOURCE_DIR}/cmake_config.h.in"
	"${PROJECT_BINARY_DIR}/cmake_config.h"
)

set(common_SRCS
	rollback_interface.cpp
	rollback.cpp
	genericobject.cpp
	voxelalgorithms.cpp
	sound.cpp
	quicktune.cpp
	subgame.cpp
	inventorymanager.cpp
	mods.cpp
	content_abm.cpp
	craftdef.cpp
	nameidmapping.cpp
	itemdef.cpp
	nodedef.cpp
	object_properties.cpp
	scriptapi.cpp
	script.cpp
	log.cpp
	content_sao.cpp
	mapgen.cpp
	content_nodemeta.cpp
	content_mapnode.cpp
	collision.cpp
	nodemetadata.cpp
	nodetimer.cpp
	serverobject.cpp
	noise.cpp
	porting.cpp
	tool.cpp
	defaultsettings.cpp
	mapnode.cpp
	voxel.cpp
	inventory.cpp
	debug.cpp
	serialization.cpp
	light.cpp
	filesys.cpp
	connection.cpp
	environment.cpp
	server.cpp
	servercommand.cpp
	socket.cpp
	mapblock.cpp
	mapsector.cpp
	map.cpp
	player.cpp
	test.cpp
	sha1.cpp
	base64.cpp
	ban.cpp
	util/serialize.cpp
	util/directiontables.cpp
	util/numeric.cpp
	util/pointedthing.cpp
	util/string.cpp
	util/timetaker.cpp
)

# This gives us the icon
if(WIN32)
	set(WINRESOURCE_FILE ${CMAKE_CURRENT_SOURCE_DIR}/../misc/winresource.rc)
	if(MINGW)
		if(NOT CMAKE_RC_COMPILER)
			set(CMAKE_RC_COMPILER "windres.exe")
		endif()
		ADD_CUSTOM_COMMAND(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/winresource_rc.o
			COMMAND ${CMAKE_RC_COMPILER} -I${CMAKE_CURRENT_SOURCE_DIR}
			-i${WINRESOURCE_FILE}
			-o ${CMAKE_CURRENT_BINARY_DIR}/winresource_rc.o
			WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
		SET(common_SRCS ${common_SRCS} ${CMAKE_CURRENT_BINARY_DIR}/winresource_rc.o)
	else(MINGW) # Probably MSVC
		set(common_SRCS ${common_SRCS} ${WINRESOURCE_FILE})
	endif(MINGW)
endif()

# Client sources
set(minetest_SRCS
	${common_SRCS}
	${sound_SRCS}
	localplayer.cpp
	sky.cpp
	clientmap.cpp
	content_cso.cpp
	content_mapblock.cpp
	content_cao.cpp
	mesh.cpp
	mapblock_mesh.cpp
	farmesh.cpp
	keycode.cpp
	camera.cpp
	clouds.cpp
	clientobject.cpp
	chat.cpp
	guiMainMenu.cpp
	guiKeyChangeMenu.cpp
	guiMessageMenu.cpp
	guiTextInputMenu.cpp
	guiFormSpecMenu.cpp
	guiPauseMenu.cpp
	guiPasswordChange.cpp
	guiDeathScreen.cpp
	guiChatConsole.cpp
	guiCreateWorld.cpp
	guiConfirmMenu.cpp
	client.cpp
	filecache.cpp
	tile.cpp
	game.cpp
	main.cpp
)

# Server sources
set(minetestserver_SRCS
	${common_SRCS}
	main.cpp
)

include_directories(
	${PROJECT_BINARY_DIR}
	${IRRLICHT_INCLUDE_DIR}
	${ZLIB_INCLUDE_DIR}
	${CMAKE_BUILD_TYPE}
	${PNG_INCLUDE_DIR}
	${GETTEXT_INCLUDE_DIR}
	${SOUND_INCLUDE_DIRS}
	${JTHREAD_INCLUDE_DIR}
	${SQLITE3_INCLUDE_DIR}
	${LUA_INCLUDE_DIR}
)

set(EXECUTABLE_OUTPUT_PATH "${CMAKE_SOURCE_DIR}/bin")

if(BUILD_CLIENT)
	add_executable(${PROJECT_NAME} ${minetest_SRCS})
	target_link_libraries(
		${PROJECT_NAME}
		${ZLIB_LIBRARIES}
		${IRRLICHT_LIBRARY}
		${OPENGL_LIBRARIES}
		${JPEG_LIBRARIES}
		${BZIP2_LIBRARIES}
		${PNG_LIBRARIES}
		${X11_LIBRARIES}
		${GETTEXT_LIBRARY}
		${SOUND_LIBRARIES}
		${JTHREAD_LIBRARY}
		${SQLITE3_LIBRARY}
		${LUA_LIBRARY}
		${PLATFORM_LIBS}
		${CLIENT_PLATFORM_LIBS}
	)
endif(BUILD_CLIENT)

if(BUILD_SERVER)
	add_executable(${PROJECT_NAME}server ${minetestserver_SRCS})
	target_link_libraries(
		${PROJECT_NAME}server
		${ZLIB_LIBRARIES}
		${JTHREAD_LIBRARY}
		${SQLITE3_LIBRARY}
		${LUA_LIBRARY}
		${PLATFORM_LIBS}
	)
endif(BUILD_SERVER)

#
# Set some optimizations and tweaks
#

include(CheckCXXCompilerFlag)

if(MSVC)
	# Visual Studio

	# EHa enables SEH exceptions (used for catching segfaults)
	set(CMAKE_CXX_FLAGS_RELEASE "/EHa /O2 /Ob2 /Oi /Ot /Oy /GL /FD /MT /GS- /arch:SSE /fp:fast /D NDEBUG /D _HAS_ITERATOR_DEBUGGING=0 /TP")
	#set(CMAKE_EXE_LINKER_FLAGS_RELEASE "/LTCG /NODEFAULTLIB:\"libcmtd.lib\" /NODEFAULTLIB:\"libcmt.lib\"")
	set(CMAKE_EXE_LINKER_FLAGS_RELEASE "/LTCG")

	# Debug build doesn't catch exceptions by itself
	# Add some optimizations because otherwise it's VERY slow
	set(CMAKE_CXX_FLAGS_DEBUG "/MDd /Zi /Ob0 /Od /RTC1")

	# Flags for C files (sqlite)
	# /MT = Link statically with standard library stuff
	set(CMAKE_C_FLAGS_RELEASE "/O2 /Ob2 /MT")
	
	if(BUILD_SERVER)
		set_target_properties(${PROJECT_NAME}server PROPERTIES
				COMPILE_DEFINITIONS "SERVER")
	endif(BUILD_SERVER)

else()
	# Probably GCC
	
	if(WARN_ALL)
		set(RELEASE_WARNING_FLAGS "-Wall")
	else()
		set(RELEASE_WARNING_FLAGS "")
	endif()
	
	if(NOT APPLE AND NOT "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
		CHECK_CXX_COMPILER_FLAG("-Wno-unused-but-set-variable" HAS_UNUSED_BUT_SET_VARIABLE_WARNING)
		if(HAS_UNUSED_BUT_SET_VARIABLE_WARNING)
			set(WARNING_FLAGS "${WARNING_FLAGS} -Wno-unused-but-set-variable")
		endif(HAS_UNUSED_BUT_SET_VARIABLE_WARNING)
	endif()

	if(MINGW)
		set(OTHER_FLAGS "-mthreads -fexceptions")
	endif()

	if(APPLE)
		set(CMAKE_OSX_ARCHITECTURES i386 CACHE STRING "do not build for 64-bit" FORCE)
		set(ARCH i386)
	endif()

	set(CMAKE_CXX_FLAGS_RELEASE "-DNDEBUG ${RELEASE_WARNING_FLAGS} ${WARNING_FLAGS} ${OTHER_FLAGS} -O3 -ffast-math -Wall -fomit-frame-pointer -pipe -funroll-loops")
	set(CMAKE_CXX_FLAGS_DEBUG "-g -O1 -Wall ${WARNING_FLAGS} ${OTHER_FLAGS}")

	if(USE_GPROF)
		set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -pg")
	endif()
	
	if(BUILD_SERVER)
		set_target_properties(${PROJECT_NAME}server PROPERTIES
				COMPILE_DEFINITIONS "SERVER")
	endif(BUILD_SERVER)

endif()

#MESSAGE(STATUS "CMAKE_CXX_FLAGS_RELEASE=${CMAKE_CXX_FLAGS_RELEASE}")
#MESSAGE(STATUS "CMAKE_CXX_FLAGS_DEBUG=${CMAKE_CXX_FLAGS_DEBUG}")

#
# Installation
#
if(WIN32)
	if(MINGWM10_DLL)
		install(FILES ${MINGWM10_DLL} DESTINATION ${BINDIR})
	endif()
	if(DEFINED ZLIB_DLL)
		install(FILES ${ZLIB_DLL} DESTINATION ${BINDIR})
	endif()
	if(USE_SOUND)
		if(OPENAL_DLL)
			install(FILES ${OPENAL_DLL} DESTINATION ${BINDIR})
		endif()
		if(OGG_DLL)
			install(FILES ${OGG_DLL} DESTINATION ${BINDIR})
		endif()
		if(VORBIS_DLL)
			install(FILES ${VORBIS_DLL} DESTINATION ${BINDIR})
		endif()
		if(VORBISFILE_DLL)
			install(FILES ${VORBISFILE_DLL} DESTINATION ${BINDIR})
		endif()
	endif()
endif()

if(BUILD_CLIENT)
	install(TARGETS ${PROJECT_NAME} DESTINATION ${BINDIR})

	if(USE_GETTEXT)
		foreach(LOCALE ${GETTEXT_AVAILABLE_LOCALES})
			set_mo_paths(MO_BUILD_PATH MO_DEST_PATH ${LOCALE})
			set(MO_BUILD_PATH "${MO_BUILD_PATH}/${PROJECT_NAME}.mo")
			install(FILES ${MO_BUILD_PATH} DESTINATION ${MO_DEST_PATH})
		endforeach(LOCALE ${GETTEXT_AVAILABLE_LOCALES})
	endif()

	if(WIN32)
		if(DEFINED IRRLICHT_DLL)
			install(FILES ${IRRLICHT_DLL} DESTINATION ${BINDIR})
		endif()
		if(USE_GETTEXT)
			if(DEFINED GETTEXT_DLL)
				install(FILES ${GETTEXT_DLL} DESTINATION ${BINDIR})
			endif()
			if(DEFINED GETTEXT_ICONV_DLL)
				install(FILES ${GETTEXT_ICONV_DLL} DESTINATION ${BINDIR})
			endif()
		endif(USE_GETTEXT)
	endif()
endif(BUILD_CLIENT)

if(BUILD_SERVER)
	install(TARGETS ${PROJECT_NAME}server DESTINATION ${BINDIR})
endif(BUILD_SERVER)

if (USE_GETTEXT)
	set(MO_FILES)

	foreach(LOCALE ${GETTEXT_AVAILABLE_LOCALES})
		set(PO_FILE_PATH "${GETTEXT_PO_PATH}/${LOCALE}/minetest.po")
		set_mo_paths(MO_BUILD_PATH MO_DEST_PATH ${LOCALE})
		set(MO_FILE_PATH "${MO_BUILD_PATH}/${PROJECT_NAME}.mo")

		add_custom_command(OUTPUT ${MO_BUILD_PATH}
			COMMAND ${CMAKE_COMMAND} -E make_directory ${MO_BUILD_PATH}
			COMMENT "mo-update [${LOCALE}]: Creating locale directory.")

		add_custom_command(
			OUTPUT ${MO_FILE_PATH}
			COMMAND ${GETTEXT_MSGFMT} -o ${MO_FILE_PATH} ${PO_FILE_PATH}
			DEPENDS ${MO_BUILD_PATH} ${PO_FILE_PATH}
			WORKING_DIRECTORY "${GETTEXT_PO_PATH}/${LOCALE}"
			COMMENT "mo-update [${LOCALE}]: Creating mo file."
			)

		set(MO_FILES ${MO_FILES} ${MO_FILE_PATH})
	endforeach(LOCALE ${GETTEXT_AVAILABLE_LOCALES})

	add_custom_target(translations ALL COMMENT "mo update" DEPENDS ${MO_FILES})
endif(USE_GETTEXT)

# Subdirectories

if (JTHREAD_FOUND)
else (JTHREAD_FOUND)
	add_subdirectory(jthread)
endif (JTHREAD_FOUND)

if (SQLITE3_FOUND)
else (SQLITE3_FOUND)
	add_subdirectory(sqlite)
endif (SQLITE3_FOUND)

if (LUA_FOUND)
else (LUA_FOUND)
	add_subdirectory(lua)
endif (LUA_FOUND)

#end