###########################################################################
# Copyright (C) 2015-2019 IoT.bzh
#
# author: José Bollo <jose.bollo@iot.bzh>
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
###########################################################################

cmake_minimum_required(VERSION 3.4.3)

###########################################################################

link_libraries(-Wl,--as-needed -Wl,--gc-sections)

add_compile_options(-Wall -Wextra -Wconversion)
add_compile_options(-Wno-unused-parameter) # frankly not using a parameter does it care?
add_compile_options(-Werror=maybe-uninitialized)
add_compile_options(-Werror=implicit-function-declaration)
add_compile_options(-Wno-pointer-sign) # for XmlChar handling
add_compile_options(-ffunction-sections -fdata-sections)
add_compile_options(-Wl,--as-needed -Wl,--gc-sections)
add_compile_options(-fPIC)
#add_definitions(-DNDEBUG)

set(CMAKE_C_FLAGS_PROFILING    "-g -O0 -pg -Wp,-U_FORTIFY_SOURCE")
set(CMAKE_C_FLAGS_DEBUG        "-g -O0 -ggdb -Wp,-U_FORTIFY_SOURCE")
set(CMAKE_C_FLAGS_RELEASE      "-g -O2")
set(CMAKE_C_FLAGS_CCOV         "-g -O2 --coverage")

###########################################################################

include(FindPkgConfig)

pkg_check_modules(EXTRAS REQUIRED libxml-2.0 openssl xmlsec1 xmlsec1-openssl json-c)
add_compile_options(${EXTRAS_CFLAGS})
include_directories(${EXTRAS_INCLUDE_DIRS})
link_libraries(${EXTRAS_LIBRARIES})
link_directories(${EXTRAS_LIBRARY_DIRS})

pkg_check_modules(libzip libzip>=0.11)
if(libzip_FOUND AND USE_LIBZIP)
	add_compile_options(${libzip_CFLAGS})
	include_directories(${libzip_INCLUDE_DIRS})
	link_libraries(${libzip_LIBRARIES})
	link_directories(${libzip_LIBRARY_DIRS})
	add_definitions(-DUSE_LIBZIP=1)
else()
	add_definitions(-DUSE_LIBZIP=0)
endif()

pkg_check_modules(libsystemd libsystemd>=222)
if(libsystemd_FOUND)
	add_compile_options(${libsystemd_CFLAGS})
	include_directories(${libsystemd_INCLUDE_DIRS})
	link_libraries(${libsystemd_LIBRARIES})
	link_directories(${libsystemd_LIBRARY_DIRS})
else()
	add_definitions(-DNO_LIBSYSTEMD)
endif()

pkg_check_modules(AFB afb-daemon>=4.99 libafbwsc>=4.99)
if(AFB_FOUND)
	add_compile_options(${AFB_CFLAGS})
	include_directories(${AFB_INCLUDE_DIRS})
	link_libraries(${AFB_LIBRARIES})
	link_directories(${AFB_LIBRARY_DIRS})
endif()

###########################################################################

if(SIMULATE_SECMGR)
	add_definitions(-DSIMULATE_SECURITY_MANAGER=1)
else(SIMULATE_SECMGR)
	pkg_check_modules(SECMGR REQUIRED security-manager)
	add_compile_options(${SECMGR_CFLAGS})
	include_directories(${SECMGR_INCLUDE_DIRS})
	link_libraries(${SECMGR_LIBRARIES})
	link_directories(${SECMGR_LIBRARY_DIRS})
	add_definitions(-DSIMULATE_SECURITY_MANAGER=0)
endif(SIMULATE_SECMGR)

if(SIMULATE_SMACK)
	add_definitions(-DSIMULATE_LIBSMACK=1)
else(SIMULATE_SMACK)
	pkg_check_modules(SMACK REQUIRED libsmack)
	add_compile_options(${SMACK_CFLAGS})
	include_directories(${SMACK_INCLUDE_DIRS})
	link_libraries(${SMACK_LIBRARIES})
	link_directories(${SMACK_LIBRARY_DIRS})
	add_definitions(-DSIMULATE_LIBSMACK=0)
endif(SIMULATE_SMACK)

###########################################################################

add_library(wgtpkg STATIC
	wgtpkg-base64.c
	wgtpkg-certs.c
	wgtpkg-digsig.c
	wgtpkg-files.c
	wgtpkg-install.c
	wgtpkg-mustach.c
	wgtpkg-permissions.c
	wgtpkg-uninstall.c
	wgtpkg-unit.c
	wgtpkg-workdir.c
	wgtpkg-xmlsec.c
	wgtpkg-zip.c
	)

add_library(utils STATIC
	mustach.c
	utils-dir.c
	utils-file.c
	utils-json.c
	utils-systemd.c
	verbose.c
	)

add_library(wgt STATIC
	wgt-config.c
	wgt-info.c
	wgt-strings.c
	wgt-json.c
	wgt.c
	)

add_library(secwrp STATIC
	secmgr-wrap.c
	)

add_library(afm STATIC
	afm-udb.c
	afm-urun.c
	)

###########################################################################
# off line tools tools

MESSAGE(STATUS "Creating packaging tools")

add_executable(wgtpkg-sign wgtpkg-sign.c)
target_link_libraries(wgtpkg-sign wgtpkg utils)

add_executable(wgtpkg-pack wgtpkg-pack.c)
target_link_libraries(wgtpkg-pack wgtpkg utils)

add_executable(wgtpkg-info wgtpkg-info.c)
target_link_libraries(wgtpkg-info wgtpkg wgt utils)

add_executable(wgtpkg-installer wgtpkg-installer.c)
target_link_libraries(wgtpkg-installer wgtpkg wgt secwrp utils)

install(TARGETS wgtpkg-sign wgtpkg-pack wgtpkg-info wgtpkg-installer DESTINATION ${CMAKE_INSTALL_BINDIR})

###########################################################################
# dynamic tool daemons

if(libsystemd_FOUND AND AFB_FOUND)
	MESSAGE(STATUS "Creating daemons")

	add_library(jbus STATIC utils-jbus.c)

	if(LEGACY_USER_DAEMON)
		add_executable(afm-user-daemon afm-user-daemon.c)
		target_link_libraries(afm-user-daemon jbus utils)
		install(TARGETS afm-user-daemon DESTINATION ${CMAKE_INSTALL_BINDIR})
	endif()

	add_library(afm-binding MODULE afm-binding.c)
	target_link_libraries(afm-binding wgtpkg wgt secwrp utils afm)
	set_target_properties(afm-binding PROPERTIES
		PREFIX ""
		LINK_FLAGS "-Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/afm-binding.export-map"
	)
	install(TARGETS afm-binding LIBRARY DESTINATION ${afm_libexecdir})

	add_executable(afm-user-session afm-user-session.c)
	install(TARGETS afm-user-session DESTINATION ${afm_libexecdir}
			PERMISSIONS SETUID OWNER_READ OWNER_WRITE OWNER_EXECUTE
					GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
else()
	MESSAGE(STATUS "Not creating daemons")
endif()

###########################################################################
# the tests

add_subdirectory(tests)