set(BOOST_PROJECT_NAME boost_${BOOST_VERSION})
set(BOOST_BUILD_ROOT ${EXTERNAL_BUILD_ROOT}/builds/${BOOST_PROJECT_NAME})

set(BOOST_ADDRESS_MODEL 64)
set(BOOST_VERSION ${BOOST_MAJOR_VERSION}.${BOOST_MINOR_VERSION}.${BOOST_REVISION})
set(BOOST_VERSION2 ${BOOST_MAJOR_VERSION}_${BOOST_MINOR_VERSION}_${BOOST_REVISION})

set(BOOST_DOWNLOAD_URL https://boostorg.jfrog.io/artifactory/main/release/${BOOST_VERSION}/source/boost_${BOOST_VERSION2}.tar.gz)

if (IS_CLANG_COMPILER)
  set(BOOST_TOOLSET --with-toolset=clang)
else ()
  set(BOOST_OPENSSL_DIR "--openssldir=${EXTERNAL_BUILD_ROOT}")
endif()

if (IS_ARM64)
  set (BOOST_ARCH arm)
else()
  set (BOOST_ARCH x86)
endif()

set (BOOST_COMMON_ARGS 
    ${BOOST_OPENSSL_DIR}
    --prefix=${EXTERNAL_BUILD_ROOT}
    address-model=${BOOST_ADDRESS_MODEL}
    architecture=${BOOST_ARCH}
    cxxflags=-std=c++${CMAKE_CXX_STANDARD}
    cxxstd=${CMAKE_CXX_STANDARD}
    define=BOOST_ASIO_HAS_STD_STRING_VIEW
    define=BOOST_SYSTEM_NO_DEPRECATED
    link=static
    linkflags=-std=c++${CMAKE_CXX_STANDARD}
    threading=multi
    variant=${CMAKE_BUILD_TYPE_LOWER}
    -sZLIB_BINARY=zlibstatic${DEBUG_EXTRA}
    -sZLIB_LIBPATH="${EXTERNAL_BUILD_ROOT}/lib"
    -sZLIB_INCLUDE="${EXTERNAL_BUILD_ROOT}/include"
)

if (MINGW)
  set(BOOST_COMMON_ARGS 
    ${BOOST_COMMON_ARGS}
    --user-config=./user-config.jam
  )
  set(BOOST_TARGET_OS target-os=windows)
endif()

ExternalProject_Add(boost_project
  DOWNLOAD_NO_PROGRESS 1
  URL ${BOOST_DOWNLOAD_URL}
  PREFIX ${BOOST_BUILD_ROOT}
  BUILD_IN_SOURCE 1
  CONFIGURE_COMMAND
   cp -f ${CMAKE_CURRENT_SOURCE_DIR}/3rd_party/user-config.jam . &&
   ./bootstrap.sh
    ${BOOST_TOOLSET}
    ${BOOST_TARGET_OS}
    --with-libraries=atomic,chrono,date_time,filesystem,random,regex,serialization,system,thread
  BUILD_COMMAND
    ./b2
    ${BOOST_COMMON_ARGS}
    ${BOOST_TARGET_OS}
  INSTALL_COMMAND
    ./b2
    ${BOOST_COMMON_ARGS}
    ${BOOST_TARGET_OS}
    install
)

add_dependencies(boost_project openssl_project)

set(BOOST_ROOT ${BOOST_BUILD_ROOT}/src/boost_project)
if (MINGW)
  set(BOOST_GCC_VERSION ${CMAKE_CXX_COMPILER_VERSION})
  string(REPLACE "." ";" BOOST_GCC_VERSION_LIST ${BOOST_GCC_VERSION})
  list(GET BOOST_GCC_VERSION_LIST 0 BOOST_GCC_MAJOR_VERSION)
  # set(BOOST_LIB_EXTRA "-mgw${BOOST_GCC_MAJOR_VERSION}-mt-x64-${BOOST_MAJOR_VERSION}_${BOOST_MINOR_VERSION}")
endif()

set(Boost_LIBRARIES
  libboost_system${BOOST_LIB_EXTRA}.a
  libboost_atomic${BOOST_LIB_EXTRA}.a
  libboost_chrono${BOOST_LIB_EXTRA}.a
  libboost_date_time${BOOST_LIB_EXTRA}.a
  libboost_filesystem${BOOST_LIB_EXTRA}.a
  libboost_random${BOOST_LIB_EXTRA}.a
  libboost_regex${BOOST_LIB_EXTRA}.a
  libboost_serialization${BOOST_LIB_EXTRA}.a
  libboost_thread${BOOST_LIB_EXTRA}.a
)

add_dependencies(boost_project zlib_project)