#  =================================================================
#           #     #                 #     #
#           ##    #   ####   #####  ##    #  ######   #####
#           # #   #  #    #  #    # # #   #  #          #
#           #  #  #  #    #  #    # #  #  #  #####      #
#           #   # #  #    #  #####  #   # #  #          #
#           #    ##  #    #  #   #  #    ##  #          #
#           #     #   ####   #    # #     #  ######     #
#
#        ---   The NorNet Testbed for Multi-Homed Systems  ---
#                        https://www.nntb.no
#  =================================================================
#
#  High-Performance Connectivity Tracer (HiPerConTracer)
#  Copyright (C) 2015-2020 by Thomas Dreibholz
#
#  This program is free software: you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation, either version 3 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
#  Contact: dreibh@simula.no


CMAKE_MINIMUM_REQUIRED(VERSION 3.0.2)
PROJECT(hipercontracer LANGUAGES C CXX)

SET(BUILD_MAJOR "1")
SET(BUILD_MINOR "4")
SET(BUILD_PATCH "9")
SET(BUILD_VERSION ${BUILD_MAJOR}.${BUILD_MINOR}.${BUILD_PATCH})

SET(CMAKE_CXX_STANDARD 14)
SET(CMAKE_CXX_STANDARD_REQUIRED ON)
SET(CMAKE_CXX_EXTENSIONS OFF)


#############################################################################
# INSTALLATION_DIRECTORIES
#############################################################################

# See: https://cmake.org/cmake/help/v3.0/module/GNUInstallDirs.html
INCLUDE(GNUInstallDirs)


#################################################
# PACKAGING
#################################################

SET(CPACK_SOURCE_GENERATOR "TXZ")
SET(CPACK_SOURCE_PACKAGE_FILE_NAME
   "${CMAKE_PROJECT_NAME}-${BUILD_MAJOR}.${BUILD_MINOR}.${BUILD_PATCH}")
SET(CPACK_SOURCE_IGNORE_FILES
   "${PROJECT_SOURCE_DIR}/${CMAKE_PROJECT_NAME}-*;${PROJECT_SOURCE_DIR}/${CMAKE_PROJECT_NAME}_*;/build/;/.git/;/config.log;/CMakeFiles/;CMakeCache.txt$;.cmake$;.tar.gz$;/_CPack_Packages;/Makefile$;~$;/build-deb;/clean-deb;/filter-empty-entries;/make-symbols;/make-ppa;/make-deb;/debian.conf;/make-rpm;/rpm.conf;${CPACK_SOURCE_IGNORE_FILES}")
INCLUDE(CPack)

ADD_CUSTOM_TARGET(dist COMMAND ${CMAKE_MAKE_PROGRAM} clean package_source)


INCLUDE(CheckIncludeFile)
INCLUDE(CheckStructHasMember)


#################################################
# UNINSTALL
#################################################

IF(NOT TARGET uninstall)
   configure_file(
      "${CMAKE_CURRENT_SOURCE_DIR}/cmake_uninstall.cmake.in"
      "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
      IMMEDIATE @ONLY)

   ADD_CUSTOM_TARGET(uninstall
      COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
ENDIF()


#################################################
# OS DEPENDENT
#################################################

IF (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
    MESSAGE(STATUS ${CMAKE_SYSTEM_NAME} " supported")
    FIND_LIBRARY(SCTP_LIB sctp)

ELSEIF (${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
    MESSAGE(STATUS ${CMAKE_SYSTEM_NAME} " supported")
    SET(CMAKE_REQUIRED_INCLUDES "/usr/local/include" "/usr/include")
    SET(CMAKE_LIBRARY_PATH "/usr/local/lib")
    INCLUDE_DIRECTORIES("/usr/local/include")

ELSEIF (${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
    MESSAGE(STATUS ${CMAKE_SYSTEM_NAME} " supported")
    SET(CMAKE_REQUIRED_INCLUDES "/usr/local/include" "/usr/include" "/usr/local/opt/openssl/include")
    SET(CMAKE_LIBRARY_PATH "/usr/local/lib")
    INCLUDE_DIRECTORIES("/usr/local/include" "/usr/local/opt/openssl/include")

ELSEIF (${CMAKE_SYSTEM_NAME} MATCHES "NetBSD")
    MESSAGE(STATUS ${CMAKE_SYSTEM_NAME} " supported")
    LIST(APPEND neat_headers neat_bsd.h)
    LIST(APPEND neat_sources neat_bsd.c)
    SET(CMAKE_REQUIRED_INCLUDES "/usr/pkg/include" "/usr/include" "/usr/local/include")
    SET(CMAKE_LIBRARY_PATH "/usr/local/lib")
    INCLUDE_DIRECTORIES("/usr/pkg/include" "/usr/local/include")

ELSEIF (${CMAKE_SYSTEM_NAME} MATCHES "NetBSD")
    MESSAGE(STATUS ${CMAKE_SYSTEM_NAME} " supported")

ELSE()
    MESSAGE(FATAL_ERROR ${CMAKE_SYSTEM_NAME} " not supported (yet?)")

ENDIF()


#############################################################################
# CHECK STRUCT MEMBERS
#############################################################################

CHECK_STRUCT_HAS_MEMBER("struct sockaddr" "sa_len" "sys/types.h;sys/socket.h" HAVE_SA_LEN)
IF (HAVE_SA_LEN)
    MESSAGE(STATUS "HAVE_SA_LEN")
    ADD_DEFINITIONS(-DHAVE_SA_LEN)
ENDIF()

CHECK_STRUCT_HAS_MEMBER("struct sockaddr_in" "sin_len" "sys/types.h;netinet/in.h" HAVE_SIN_LEN)
IF (HAVE_SIN_LEN)
    MESSAGE(STATUS "HAVE_SIN_LEN")
    ADD_DEFINITIONS(-DHAVE_SIN_LEN)
ENDIF()

CHECK_STRUCT_HAS_MEMBER("struct sockaddr_in6" "sin6_len" "sys/types.h;netinet/in.h" HAVE_SIN6_LEN)
IF (HAVE_SIN6_LEN)
    MESSAGE(STATUS "HAVE_SIN6_LEN")
    ADD_DEFINITIONS(-DHAVE_SIN6_LEN)
ENDIF()

CHECK_STRUCT_HAS_MEMBER("struct sockaddr_storage" "ss_len" "sys/types.h;sys/socket.h" HAVE_SS_LEN)
IF (HAVE_SS_LEN)
    MESSAGE(STATUS "HAVE_SS_LEN")
    ADD_DEFINITIONS(-DHAVE_SS_LEN)
ENDIF()


#############################################################################
# REQUIREMENTS
#############################################################################

# ###### Threads ############################################################
FIND_PACKAGE(Threads REQUIRED)

# ###### Boost ##############################################################
FIND_PACKAGE(Boost REQUIRED COMPONENTS log date_time system thread iostreams filesystem program_options)
IF (NOT Boost_FOUND)
   MESSAGE(FATAL_ERROR "Cannot find Boost libraries!")
ELSE()
  INCLUDE_DIRECTORIES(${Boost_INCLUDE_DIRS})
ENDIF()
ADD_DEFINITIONS(-DBOOST_ALL_DYN_LINK)   # <<-- Required to handle BOOST Log link problem!


#############################################################################
# SUBDIRECTORIES
#############################################################################

ADD_SUBDIRECTORY(src)