# CMake command examples:
# Native (Linux):
# cmake ..
# Windows:
# cmake -DCMAKE_TOOLCHAIN_FILE=~/cmake/Toolchain-mingw32.cmake -DCMAKE_INSTALL_PREFIX=~/cmake/win32 ..
# ARM (Linux):
# cmake -DCMAKE_TOOLCHAIN_FILE=~/cmake/Toolchain-codesourcery.cmake -DCMAKE_INSTALL_PREFIX=~/cmake/arm ..
cmake_minimum_required(VERSION 2.8)

project("skype4empathy" C)
if(CMAKE_SOURCE_DIR STREQUAL CMAKE_BUILD_DIR)
	message(ERROR "You don't want to configure in the source directory!")
endif()

# configure
set ( CONFIG_AUTHOR "Gabriele Giacone" )
set ( CONFIG_CONTACT_EMAIL " <1o5g4r8o@gmail.com>")
set ( CONFIG_HOMEPAGE "http://eion.robbmob.com" )
set ( CONFIG_DESCRIPTION_SUMMARY "This is the Skype API Plugin for Empathy" )
set ( CONFIG_LICENSE "GPLv3")

set ( BUILD_TYPE "Debug" CACHE STRING "Debug or Release?")
set ( CPACK_GENERATOR "DEB" CACHE STRING "Configure Installer Package (DEB/RPM)")
set ( CMAKE_INSTALL_PREFIX "/usr" CACHE STRING "Prefix for operation system e.g. /usr")
message( "  GENERATOR = ${CPACK_GENERATOR}" )

# Set default install prefix to project root directory
set ( DEB_CMAKE_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}" )
set ( CONFIG_INSTALLER_FOLDER "${CMAKE_SOURCE_DIR}/installer" )
set ( CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake" )
set ( CPACK_SET_DESTDIR "ON" )
set ( DEB_BUILDDIR "obj-${DEB_BUILD_GNU_TYPE}" )

# Flags
set ( LIBPURPLE_CFLAGS "-DPURPLE_PLUGINS -DENABLE_NLS" )
set ( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -pthread -shared -fPIC -DPIC")

# Set Flags for 32 and 64bit
if ( "${CMAKE_SIZEOF_VOID_P}" EQUAL "8" )
	set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS} -g -m32 -m64 -O2 -Wno-pointer-to-int-cast -Wno-int-to-pointer-cast")
	set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS} -g -DDEBUG -O0  -Wno-pointer-to-int-cast -Wno-int-to-pointer-cast")
elseif( "${CMAKE_SIZEOF_VOID_P}" EQUAL "4" )
	set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS} -O2 -I. -g -march=athlon-xp")
	set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS} -g -DDEBUG -O0  -I. -march=athlon-xp")
else()
	set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS} -I. -g -O2")
	set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS} -I. -g -O2")
endif()

# project version
set ( ${PROJECT_NAME}_MAJOR_VERSION 0 )
set ( ${PROJECT_NAME}_MINOR_VERSION 1 )
set ( ${PROJECT_NAME}_PATCH_LEVEL 0 )
set ( PROJECT_VERSION "${${PROJECT_NAME}_MAJOR_VERSION}.${${PROJECT_NAME}_MINOR_VERSION}.${${PROJECT_NAME}_PATCH_LEVEL}" )

# Purple Settings
IF(NOT PURPLE_MAJOR_VERSION)
	set ( PURPLE_MAJOR_VERSION 2 )
ENDIF(NOT PURPLE_MAJOR_VERSION)
set ( PIDGIN_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/share/pixmaps/pidgin/")
set ( PURPLE_LIB_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/lib/purple-${PURPLE_MAJOR_VERSION}/")

# Set the default path for built executables to the "bin" directory
set(EXECUTABLE_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/bin)

# Add definitions for gettext.
set ( LOCALE_DIR "${CMAKE_INSTALL_PREFIX}/share/locale")

# Enable debug symbols by default
if(CMAKE_BUILD_TYPE STREQUAL "")
	set(CMAKE_BUILD_TYPE Debug)
endif()




################################################################################
# Configure and find libraries
################################################################################
if(NOT CMAKE_CROSSCOMPILING)

	# Packages
	find_package(PkgConfig REQUIRED)
	option(NLS "Native language support" ON)
	if(NLS)
		find_package(Gettext)
	endif(NLS)

	# Modules
	pkg_check_modules(GLIB REQUIRED glib-2.0)
	pkg_check_modules(DBUS REQUIRED dbus-1)
	pkg_check_modules(LIBPURPLE REQUIRED purple)

	include_directories(
		${GLIB_INCLUDE_DIRS}
		${DBUS_INCLUDE_DIRS}
		${LIBPURPLE_INCLUDE_DIRS}
	)

else(NOT CMAKE_CROSSCOMPILING)

	if(${CMAKE_SYSTEM_NAME} STREQUAL Windows)
		# GLIB include directories
		set(GLIB_CFLAGS
			-I${CMAKE_INSTALL_PREFIX}/include/glib-2.0
			-I${CMAKE_INSTALL_PREFIX}/lib/glib-2.0/include
			-I${CMAKE_INSTALL_PREFIX}/include/dbus-1.0 
			-I${CMAKE_INSTALL_PREFIX}/lib/dbus-1.0/include
			-I${CMAKE_INSTALL_PREFIX}/include/libpurple
			-I${CMAKE_INSTALL_PREFIX}/lib/libpurple/include
		)

		# same as native values
		set(GLIB_LIBRARIES glib-2.0 dbus-1.0 purple)

		# directory which includes *.dll.a files
		set(GLIB_LIBRARY_DIRS ${CMAKE_INSTALL_PREFIX}/lib)

	endif()

endif(NOT CMAKE_CROSSCOMPILING)


################################################################################
# Dependencies
################################################################################

# Definitions
set(CFLAGS
	${GLIB_CFLAGS}
	${DBUS_CFLAGS}
	${LIBPURPLE_CFLAGS}
)
add_definitions( ${CFLAGS} )

# Linker libraries
set(LIBS
	${GLIB_LIBRARIES}
	${DBUS_LIBRARIES}
	${LIBPURPLE_LIBRARIES}
)
link_libraries(${LIBS})

# Linker library directories
set(LIBRARY_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/lib)
set(LIB_PATHS
	${GLIB_LIBRARY_DIRS}
	${DBUS_LIBRARY_DIRS}
	${LIBPURPLE_LIBRARY_DIRS}
)
link_directories(${LIB_PATHS})

# Include directories
#set(INCLUDE_PATHS
#	${PROJECT_SOURCE_DIR}/pixmaps
#)
#include_directories(${INCLUDE_PATHS})


################################################################################
# Add Sources
################################################################################

# determine source and header files
SET(SOURCES
	libskype.c
	debug.c
	skype_messaging_carbon2.c
	skype_messaging_win32.c
	skype_events.c
	skype_messaging.c
	skype_messaging_carbon.c
	skype_messaging_dbus.c
	skype_messaging_network.c
	skype_messaging_x11.c
)


# libskype.so DEPENDS skype_messaging_x11.c skype_messaging_dbus.c
add_library(skype MODULE libskype.c)

# libskype_dbus.so DEPENDS skype_messaging_x11.c skype_messaging_dbus.c
add_library(skype_dbus MODULE libskype.c)
set_target_properties(${skype_dbus} PROPERTIES COMPILE_FLAGS "-DSKYPE_DBUS")

# libskypenet.so:  .DEPENDS skype_messaging_network.c
add_library(skypenet MODULE libskype.c)
set_target_properties(${skypenet} PROPERTIES COMPILE_FLAGS "-DSKYPENET")

# libskypearm.so: .DEPENDS skype_messaging_x11.c
add_library(skypearm MODULE libskype.c)

# Install files
INSTALL (CODE "FILE(MAKE_DIRECTORY ${PURPLE_LIB_INSTALL_DIR})")
INSTALL (TARGETS ${skype} ${skype_dbus} ${skypenet}${skypearm} DESTINATION ${PURPLE_LIB_INSTALL_DIR})


################################################################################
# Add Icons and theme for emphaty
################################################################################
foreach(size 16 22 48)
	FILE(GLOB PIDGIN_IMAGE ${CMAKE_CURRENT_SOURCE_DIR}icons/${size}/*.png)
	INSTALL (FILES ${PIDGIN_IMAGE} DESTINATION ${PIDGIN_INSTALL_DIR}protocols/${size})
endforeach(size)

FILE(GLOB PIDGIN_EMOTES ${CMAKE_CURRENT_SOURCE_DIR}theme)
INSTALL (FILES ${PIDGIN_EMOTES} DESTINATION ${PIDGIN_INSTALL_DIR}emotes/skype)


################################################################################
# Add locales - Creates the CPACK-Component locales
################################################################################
option(INSTALL_LOC "Install locales data" ON)
if(GETTEXT_FOUND AND GETTEXTLIBS_FOUND AND INSTALL_LOC)
	message( "-> Add locales" )
	set (HAVE_GETTEXT true)
	file (GLOB project_TRANSLATIONS ${CMAKE_SOURCE_DIR}/po/*.po)
	GETTEXT_CREATE_TRANSLATIONS (${CMAKE_CURRENT_SOURCE_DIR}/po/skype4pidgin.pot ALL ${project_TRANSLATIONS})
endif(GETTEXT_FOUND AND GETTEXTLIBS_FOUND AND INSTALL_LOC)


################################################################################
# Add uninstall option
################################################################################
configure_file(
	"${CMAKE_SOURCE_DIR}/cmake/CMake_Uninstall.cmake.in"
	"${CMAKE_CURRENT_BINARY_DIR}/CMake_Uninstall.cmake" IMMEDIATE @ONLY)

add_custom_target(uninstall
	COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/CMake_Uninstall.cmake
	COMMENT "Add uninstall options"
)


################################################################################
# Add installer package options (e.g. debian folder)
################################################################################
option(BUILD_INSTALLER "Generate an Installer for your OS" ON)
if ( BUILD_INSTALLER AND NOT EXISTS "${CONFIG_INSTALLER_FOLDER}/")
	include (Installer)
	#add_subdirectory(cmake/installer)
endif()


################################################################################
# Optimize Compiler
################################################################################
include (OptimizeForArchitecture)
execute_process(	COMMAND sed "s, \"auto\" CACHE, \"none\" CACHE,"
					INPUT_FILE ${CMAKE_SOURCE_DIR}/cmake/OptimizeForArchitecture.cmake
					OUTPUT_FILE ${CMAKE_BINARY_DIR}/cmake/OptimizeForArchitecture.cmake
)
install(FILES ${CMAKE_BINARY_DIR}/../cmake/OptimizeForArchitecture.cmake DESTINATION cmake )


################################################################################
# Summary
################################################################################
message( "" )
message( "Environment:" )
message( "  HOST_GNU_TYPE = ${DEB_HOST_GNU_TYPE}" )
message( "  HOST_ARCH = ${DEB_HOST_ARCH}" )
message( "  GNU Type = ${DEB_BUILD_GNU_TYPE}" )
message( "  Architecture: ${DEB_BUILD_ARCH}" )
message( "  System Type: ${DEB_BUILD_GNU_SYSTEM}")
message( "  System: ${DEB_BUILD_GNU_SYSTEM}")
message( "  CPU: ${DEB_HOST_ARCH_CPU}")
message( "" )
if ( BUILD_INSTALLER )
message( "Installer:" )
message( "  GENERATOR = ${CPACK_GENERATOR}" )
message( "  INSTALL_DIRECTORY = ${CPACK_PACKAGE_INSTALL_DIRECTORY}" )
message( "  DEB_BUILDDIR = ${DEB_BUILDDIR}" )
message( "" )
endif()
message( "Summary:" )
message( "  PACKAGE_VERSION = ${PROJECT_VERSION}" )
message( "  EXECUTABLE_OUTPUT_PATH = ${EXECUTABLE_OUTPUT_PATH}" )
message( "" )
message( "Variables that can be changed:" )
message( "  CONFIG_AUTHOR = ${CONFIG_AUTHOR}" )
message( "  CONFIG_CONTACT_EMAIL = ${CONFIG_CONTACT_EMAIL}" )
message( "  BUILD_TYPE = ${BUILD_TYPE}" )
message( "  BUILD_INSTALLER = ${BUILD_INSTALLER}" )
message( "  CONFIG_LICENSE = ${CONFIG_LICENSE}" )
message( "  CMAKE_INSTALL_PREFIX = ${CMAKE_INSTALL_PREFIX}" )
message( "  LOCALE_DIR = ${LOCALE_DIR}" )
message( "  PIDGIN_INSTALL_DIR = ${PIDGIN_INSTALL_DIR}" )
message( "  PURPLE_LIB_INSTALL_DIR = ${PURPLE_LIB_INSTALL_DIR}" )
message( "" )
message( "Libs:" )
message( "" )