cmake_minimum_required (VERSION 2.8.12)

project (pfaedle)

if (CMAKE_BUILD_TYPE)
	string(SUBSTRING ${CMAKE_BUILD_TYPE} 0 1 FIRST_CHAR)
	string(TOUPPER ${FIRST_CHAR} FIRST_CHAR)
	string(REGEX REPLACE "^.(.*)" "${FIRST_CHAR}\\1" CMAKE_BUILD_TYPE "${CMAKE_BUILD_TYPE}")
endif()

set(CPPLINT_PROJECT_ROOT "src")

enable_testing()

set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/")
set(EXECUTABLE_OUTPUT_PATH "${CMAKE_BINARY_DIR}")

# set compiler flags, see http://stackoverflow.com/questions/7724569/debug-vs-release-in-cmake
set(CMAKE_CXX_FLAGS                "-Ofast -fno-signed-zeros -fno-trapping-math -Wall -Wno-format-extra-args -Wextra -Wformat-nonliteral -Wformat-security -Wformat=2 -Wextra -Wno-implicit-fallthrough -pedantic -Wno-keyword-macro")
set(CMAKE_CXX_FLAGS_SANITIZE       "-Og -g -fsanitize=address -fsanitize=leak -fsanitize=undefined -DLOGLEVEL=3 -DPFAEDLE_DBG=1")
set(CMAKE_CXX_FLAGS_PROFILE        "-g -pg -DLOGLEVEL=3 -DPFAEDLE_DBG=1")
set(CMAKE_CXX_FLAGS_DEBUG          "-Og -g -DLOGLEVEL=3 -DPFAEDLE_DBG=1")
set(CMAKE_CXX_FLAGS_MINSIZEREL     "${CMAKE_CXX_FLAGS} -DLOGLEVEL=2")
set(CMAKE_CXX_FLAGS_RELEASE        "${CMAKE_CXX_FLAGS} -DLOGLEVEL=2")
set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS} -g -DLOGLEVEL=3")

# export compile commands to tools like clang
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

# Compiler-specific C++11 activation.
if ("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU")
	execute_process(
		COMMAND ${CMAKE_CXX_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION)
	if ((GCC_VERSION VERSION_GREATER 4.8 OR GCC_VERSION VERSION_EQUAL 4.8))
		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
	else ()
		message(FATAL_ERROR "${PROJECT_NAME} requires g++ 4.8 or greater!")
	endif ()
elseif ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
	#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++ -std=c++11")
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
else ()
	message(FATAL_ERROR "Your C++ compiler does not support C++11.")
endif ()

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DPFAEDLE_PRECISION=${PFAEDLE_PRECISION}")

find_package(LibZip)
find_package(ZLIB)
find_package(BZip2)

if (LIBZIP_FOUND)
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DLIBZIP_FOUND=1")
endif()

if (ZLIB_FOUND)
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DZLIB_FOUND=1")
else ()
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DPFXML_NO_ZLIB=1")
endif()

if (BZIP2_FOUND)
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DBZLIB_FOUND=1")
else ()
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DPFXML_NO_BZLIB=1")
endif()

# http://brianmilco.blogspot.de/2012/11/cmake-automatically-use-git-tags-as.html
include(GetGitRevisionDescription)
git_get_tag(VERSION_GIT)
get_git_is_dirty(VERSION_GIT_IS_DIRTY)
if ("${VERSION_GIT_IS_DIRTY}" STREQUAL "")
	set(VERSION_GIT_FULL "${VERSION_GIT}")
else()
	set(VERSION_GIT_FULL "${VERSION_GIT}-${VERSION_GIT_IS_DIRTY}")
endif()

# Download submodules if needed

if(NOT EXISTS ${CMAKE_SOURCE_DIR}/src/configparser/.git OR NOT EXISTS ${CMAKE_SOURCE_DIR}/src/cppgtfs/.git OR NOT EXISTS ${CMAKE_SOURCE_DIR}/src/xml/.git)
    execute_process(
        COMMAND git submodule update --init --recursive
    )
endif()

add_subdirectory(src)

# tests

add_test("utilTest" utilTest)
add_test("pfaedleTest" pfaedleTest)

# handles install target
install(
	FILES pfaedle.cfg DESTINATION etc/${PROJECT_NAME} COMPONENT config PERMISSIONS OWNER_READ GROUP_READ WORLD_READ
)

install(
	FILES ${CMAKE_BINARY_DIR}/pfaedle DESTINATION bin
	PERMISSIONS OWNER_EXECUTE GROUP_EXECUTE WORLD_EXECUTE COMPONENT binaries
)

install(
	FILES ${CMAKE_BINARY_DIR}/shapevl DESTINATION bin
	PERMISSIONS OWNER_EXECUTE GROUP_EXECUTE WORLD_EXECUTE COMPONENT binaries
)