# vim: et ts=4 sts=4 sw=4 tw=0

CMAKE_MINIMUM_REQUIRED(VERSION 2.8.5)
PROJECT(jsoncpp)

OPTION(BUILD_SHARED_LIBS "Build jsoncpp_lib as a shared library." OFF)
OPTION(BUILD_STATIC_LIBS "Build jsoncpp_lib static library." ON)

# Ensures that CMAKE_BUILD_TYPE is visible in cmake-gui on Unix
IF(NOT WIN32)
    IF(NOT CMAKE_BUILD_TYPE)
        SET(CMAKE_BUILD_TYPE Release CACHE STRING
            "Choose the type of build, options are: None Debug Release RelWithDebInfo MinSizeRel Coverage."
            FORCE)
    ENDIF(NOT CMAKE_BUILD_TYPE)
ENDIF(NOT WIN32)

SET(DEBUG_LIBNAME_SUFFIX "" CACHE STRING "Optional suffix to append to the library name for a debug build")
SET(LIB_SUFFIX "" CACHE STRING "Optional arch-dependent suffix for the library installation directory")

# Set variable named ${VAR_NAME} to value ${VALUE}
FUNCTION(set_using_dynamic_name VAR_NAME VALUE)
    SET( "${VAR_NAME}" "${VALUE}" PARENT_SCOPE)
ENDFUNCTION(set_using_dynamic_name)

# Extract major, minor, patch from version text
# Parse a version string "X.Y.Z" and outputs
# version parts in ${OUPUT_PREFIX}_MAJOR, _MINOR, _PATCH.
# If parse succeeds then ${OUPUT_PREFIX}_FOUND is TRUE.
MACRO(jsoncpp_parse_version VERSION_TEXT OUPUT_PREFIX)
    SET(VERSION_REGEX "[0-9]+\\.[0-9]+\\.[0-9]+(-[a-zA-Z0-9_]+)?")
    IF( ${VERSION_TEXT} MATCHES ${VERSION_REGEX} )
        STRING(REGEX MATCHALL "[0-9]+|-([A-Za-z0-9_]+)" VERSION_PARTS ${VERSION_TEXT})
        LIST(GET VERSION_PARTS 0 ${OUPUT_PREFIX}_MAJOR)
        LIST(GET VERSION_PARTS 1 ${OUPUT_PREFIX}_MINOR)
        LIST(GET VERSION_PARTS 2 ${OUPUT_PREFIX}_PATCH)
        set_using_dynamic_name( "${OUPUT_PREFIX}_FOUND" TRUE )
    ELSE( ${VERSION_TEXT} MATCHES ${VERSION_REGEX} )
        set_using_dynamic_name( "${OUPUT_PREFIX}_FOUND" FALSE )
    ENDIF( ${VERSION_TEXT} MATCHES ${VERSION_REGEX} )
ENDMACRO(jsoncpp_parse_version)

# Read out version from "version" file
#FILE(STRINGS "version" JSONCPP_VERSION)
#SET( JSONCPP_VERSION_MAJOR X )
#SET( JSONCPP_VERSION_MINOR Y )
#SET( JSONCPP_VERSION_PATCH Z )
SET( JSONCPP_VERSION 1.6.5 )
jsoncpp_parse_version( ${JSONCPP_VERSION} JSONCPP_VERSION )
#IF(NOT JSONCPP_VERSION_FOUND)
#    MESSAGE(FATAL_ERROR "Failed to parse version string properly. Expect X.Y.Z")
#ENDIF(NOT JSONCPP_VERSION_FOUND)

MESSAGE(STATUS "JsonCpp Version: ${JSONCPP_VERSION_MAJOR}.${JSONCPP_VERSION_MINOR}.${JSONCPP_VERSION_PATCH}")
# File version.h is only regenerated on CMake configure step
CONFIGURE_FILE( "${PROJECT_SOURCE_DIR}/src/lib_json/version.h.in"
                "${PROJECT_SOURCE_DIR}/include/json/version.h"
                NEWLINE_STYLE UNIX )
CONFIGURE_FILE( "${PROJECT_SOURCE_DIR}/version.in"
                "${PROJECT_SOURCE_DIR}/version"
                NEWLINE_STYLE UNIX )

macro(UseCompilationWarningAsError)
	if ( MSVC )
        # Only enabled in debug because some old versions of VS STL generate
        # warnings when compiled in release configuration.
		set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /WX ")
	endif( MSVC )
endmacro()

# Include our configuration header
INCLUDE_DIRECTORIES( ${jsoncpp_SOURCE_DIR}/include )

if ( MSVC )
    # Only enabled in debug because some old versions of VS STL generate
    # unreachable code warning when compiled in release configuration.
    set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /W4 ")
endif( MSVC )

if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
  # using regular Clang or AppleClang
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Werror -Wall -Wconversion -Wshadow -Wno-sign-conversion")
elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
  # using GCC
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Werror -Wall -Wconversion -Wshadow -Wextra -pedantic")
  # not yet ready for -Wsign-conversion
endif()

#install the includes
ADD_SUBDIRECTORY( include )

# Build the different applications
ADD_SUBDIRECTORY( src )