#
# 源码编译安装通用模版、mpi/vasp等
#

# 源码编译安装通用函数
# NAME: 软件名  VER:版本  URL:在线下载地址
function(SrcBuild NAME VER URL)
    SET_INSTALL_PATH(${NAME} ${VER} SOFT_INSTALL_DIR)
    DEPLOY_MSG("Build ${NAME}-${VER} , install to: ${SOFT_INSTALL_DIR}")

    # 1. 定义离线包路径 & 编译临时目录
    set(OFFLINE_PKG_DIR "${CMAKE_SOURCE_DIR}/files")
    set(PKG_FILENAME "${NAME}-${VER}.tar.gz")
    set(LOCAL_TAR "${OFFLINE_PKG_DIR}/${PKG_FILENAME}")
    set(BUILD_DIR "${CMAKE_BINARY_DIR}/build_${NAME}")

    file(MAKE_DIRECTORY ${BUILD_DIR})
    set(TAR_FILE "${BUILD_DIR}/${PKG_FILENAME}")

    # 2. 优先使用本地离线包
    if(EXISTS ${LOCAL_TAR})
        DEPLOY_MSG("Found offline package: ${LOCAL_TAR}, use local file")
        # 拷贝离线包到编译目录（避免源目录被修改）
        file(COPY ${LOCAL_TAR} DESTINATION ${BUILD_DIR})
    else()
        DEPLOY_MSG("Offline package not found, start download: ${URL}")
        file(DOWNLOAD ${URL} ${TAR_FILE} SHOW_PROGRESS)
    endif()

    # 3. 解压源码
    execute_process(
        COMMAND tar -xf ${TAR_FILE} -C ${BUILD_DIR}
        RESULT_VARIABLE TAR_RET
    )
    if(NOT TAR_RET EQUAL 0)
        message(FATAL_ERROR "Extract ${NAME} package failed")
    endif()

    set(SRC_DIR "${BUILD_DIR}/${NAME}-${VER}")

    # 4. configure
    execute_process(
        COMMAND ./configure --prefix=${SOFT_INSTALL_DIR}
        WORKING_DIRECTORY ${SRC_DIR}
        RESULT_VARIABLE CONF_RET
    )
    if(NOT CONF_RET EQUAL 0)
        message(FATAL_ERROR "${NAME} configure failed")
    endif()

    # 5. 编译 + 安装
    execute_process(COMMAND make -j${BUILD_JOBS} WORKING_DIRECTORY ${SRC_DIR})
    execute_process(COMMAND make install WORKING_DIRECTORY ${SRC_DIR})

    DEPLOY_MSG("${NAME}-${VER} build & install done")
endfunction()

if(CMAKE_SCRIPT_MODE_FILE)
    SrcBuild(${NAME} ${VER} ${URL})
endif()