project(pip)
cmake_minimum_required(VERSION 2.6)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g3")

include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR})
include(CheckFunctionExists)

# Version
file(READ "src/piversion.h" VERSION_OFFSET LIMIT 4 OFFSET 3)
file(READ "src/piversion.h" VERSION_MAJOR LIMIT 1 OFFSET ${VERSION_OFFSET})
file(READ "src/piversion.h" VERSION_OFFSET LIMIT 4 OFFSET 7)
file(READ "src/piversion.h" VERSION_MINOR LIMIT 1 OFFSET ${VERSION_OFFSET})
file(READ "src/piversion.h" VERSION_OFFSET LIMIT 4 OFFSET 11)
file(READ "src/piversion.h" VERSION_REVISION LIMIT 1 OFFSET ${VERSION_OFFSET})
file(STRINGS "src/piversion.h" VERSION_SUFFIX REGEX "\".*\"")
string(REGEX MATCH "\".*\"" VERSION_SUFFIX ${VERSION_SUFFIX})
string(LENGTH ${VERSION_SUFFIX} SL)
math(EXPR SL '${SL}-2')
string(SUBSTRING ${VERSION_SUFFIX} 1 ${SL} VERSION_SUFFIX)
string(LENGTH ${VERSION_MAJOR} SL)
math(EXPR SL '${SL}-1')
string(SUBSTRING ${VERSION_MAJOR} 0 ${SL} VERSION_MAJOR)
string(LENGTH ${VERSION_MINOR} SL)
math(EXPR SL '${SL}-1')
string(SUBSTRING ${VERSION_MINOR} 0 ${SL} VERSION_MINOR)
string(LENGTH ${VERSION_REVISION} SL)
math(EXPR SL '${SL}-1')
string(SUBSTRING ${VERSION_REVISION} 0 ${SL} VERSION_REVISION)
set(VERSION "${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_REVISION}")
set(SOVERSION ${VERSION})
message(STATUS "Building PIP version ${VERSION}${VERSION_SUFFIX}")
file(WRITE "src/pip_version_str.h" "// This file was generated by PIP CMake, don`t edit it!\n#define __PIP_VERSION_STR__ \"${VERSION}${VERSION_SUFFIX}\"\n")
set(CMAKE_BUILD_TYPE "Release")
set(LIBS)


# Sources
set(PIP_FOLDERS "." "core" "containers" "thread" "system" "io" "console" "math" "code")
include_directories("src")
foreach(F ${PIP_FOLDERS})
	include_directories("src/${F}")
	file(GLOB HS "src/${F}/*.h")
	file(GLOB CS "src/${F}/*.cpp")
	list(APPEND HDRS ${HS})
	list(APPEND CPPS ${CS})
endforeach(F)

# Check Bessel functions
set(CMAKE_REQUIRED_INCLUDES math.h)
set(CMAKE_REQUIRED_LIBRARIES m)
CHECK_FUNCTION_EXISTS(j0 PIP_MATH_J0)
CHECK_FUNCTION_EXISTS(j1 PIP_MATH_J1)
CHECK_FUNCTION_EXISTS(jn PIP_MATH_JN)
CHECK_FUNCTION_EXISTS(y0 PIP_MATH_Y0)
CHECK_FUNCTION_EXISTS(y1 PIP_MATH_Y1)
CHECK_FUNCTION_EXISTS(yn PIP_MATH_YN)
if (PIP_MATH_J0)
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DPIP_MATH_J0")
endif ()
if (PIP_MATH_J1)
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DPIP_MATH_J1")
endif ()
if (PIP_MATH_JN)
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DPIP_MATH_JN")
endif ()
if (PIP_MATH_Y0)
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DPIP_MATH_Y0")
endif ()
if (PIP_MATH_Y1)
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DPIP_MATH_Y1")
endif ()
if (PIP_MATH_YN)
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DPIP_MATH_YN")
endif ()


# Check if RT timers exists
set(CMAKE_REQUIRED_INCLUDES time.h)
if (DEFINED ENV{QNX_HOST})
	set(CMAKE_REQUIRED_LIBRARIES )
else ()
	set(CMAKE_REQUIRED_LIBRARIES rt)
endif ()
CHECK_FUNCTION_EXISTS(timer_create PIP_TIMER_RT_0)
CHECK_FUNCTION_EXISTS(timer_settime PIP_TIMER_RT_1)
CHECK_FUNCTION_EXISTS(timer_delete PIP_TIMER_RT_2)
if (PIP_TIMER_RT_0 AND PIP_TIMER_RT_1 AND PIP_TIMER_RT_2)
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DPIP_TIMER_RT")
	message(STATUS "Available timers: Thread, ThreadRT, Pool")
else ()
	message(STATUS "Available timers: Thread, Pool")
endif ()


# Check if USB is on (to enable use "-DUSB=" argument of cmake)
if (DEFINED USB)
	message(STATUS "Building with USB support")
	unset(USB)
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DPIP_USB")
	list(APPEND LIBS usb)
else ()
	message(STATUS "Building without USB support")
endif ()


# Check if STL containers is on (to enable use "-DSTL=" argument of cmake)
if (DEFINED STL)
	message(STATUS "Building with STL containers")
	unset(STL)
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DPIP_CONTAINERS_STL")
else ()
	message(STATUS "Building with PIP containers")
endif ()


# Check if ICU used for PIString and PIChar
if (DEFINED ICU)
	message(STATUS "Building with ICU")
	unset(ICU)
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DPIP_ICU")
	list(APPEND LIBS icuuc)
else ()
	message(STATUS "Building without ICU, attention!")
endif ()


# Check if PIP support cryptographic encryption/decryption by using sodium library
if (DEFINED CRYPT)
	message(STATUS "Building with CRYPT support")
	unset(CRYPT)
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DPIP_CRYPT")
	list(APPEND LIBS sodium)
else ()
	message(STATUS "Building without CRYPT, encryption doesn't work")
endif ()


# Add library
if (${WIN32})
	list(APPEND LIBS ws2_32 Iphlpapi Psapi)
	#execute_process(COMMAND "make_rc_win.bat" WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} OUTPUT_QUIET)
	#list(APPEND CPPS "pip_resource_win.o")
	list(APPEND CPPS "pip_resource_win.rc")
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DPSAPI_VERSION=1")
	add_library(pip SHARED ${CPPS} ${HDRS})
	if (${CMAKE_C_COMPILER} STREQUAL "cl")
		include(GenerateExportHeader)
		generate_export_header(pip)
		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /O2 /Ob2 /Ot")
		#set(${CMAKE_C_FLAGS} "/O2 /Ob2 /Ot")
	else ()
		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O2")
		#set(${CMAKE_CXX_FLAGS} "-O2")
	endif ()
else ()
	set(${CMAKE_CXX_FLAGS} "-O2")
	if (DEFINED ENV{QNX_HOST})
		list(APPEND LIBS socket dl)
		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ftemplate-depth-32")
		add_library(pip STATIC ${CPPS})
	else ()
		list(APPEND LIBS pthread dl)
		if (NOT APPLE)
			list(APPEND LIBS rt)
		endif()
		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall")
		#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g3")
		add_library(pip SHARED ${CPPS})
	endif ()
endif ()
target_link_libraries(pip ${LIBS})
#install(TARGETS pip DESTINATION bin)
set(CMAKE_C_FLAGS "${CMAKE_CXX_FLAGS}")

# Test program
#find_package(Qt4 REQUIRED)
#include_directories(${QT_INCLUDES})
add_executable(pip_test "main.cpp" "ccm_kbd.cpp")
target_link_libraries(pip_test pip)# ${QT_QTCORE_LIBRARY})
#target_link_libraries(pip_test pip)


# Install
# Check if system or local install will be used (to system install use "-DLIB=" argument of cmake)
if (DEFINED LIB)
	set(LIB 1)
	if (${WIN32})
		find_package(MinGW REQUIRED)
		set(CMAKE_INSTALL_PREFIX ${MINGW_DIR})
		install(FILES ${HDRS} DESTINATION ${MINGW_INCLUDE}/pip)
		install(TARGETS pip DESTINATION ${MINGW_LIB})
	else ()
		set(CMAKE_INSTALL_PREFIX /usr)
		install(FILES ${HDRS} DESTINATION ${CMAKE_INSTALL_PREFIX}/include/pip)
		install(TARGETS pip DESTINATION ${CMAKE_INSTALL_PREFIX}/lib)
	endif ()
	message(STATUS "Install to system \"${CMAKE_INSTALL_PREFIX}\"")
	# Precompiled header
	#add_custom_target(pip_pch ALL COMMAND ${CMAKE_CXX_COMPILER} -O2 -fPIC -g3 ${CMAKE_INSTALL_PREFIX}/include/pip/pip.h DEPENDS pip SOURCES ${HDRS})
	#list(APPEND HDRS "pip.h.gch")
	install(FILES "FindPIP.cmake" DESTINATION ${CMAKE_ROOT}/Modules)
else ()
	install(TARGETS pip DESTINATION ${CMAKE_INSTALL_PREFIX}/bin)
	message(STATUS "Install to local \"bin\"")
endif ()

# Utils
add_subdirectory("utils/system_test")
add_subdirectory("utils/remote_console")
add_subdirectory("utils/code_model_generator")
add_subdirectory("utils/system_daemon")
add_subdirectory("utils/udp_file_transfer")