#
# Copyright 2010-2013 Ettus Research LLC
#
# 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/>.
#

########################################################################
# List of manual sources
########################################################################
SET(manual_sources
    index.rst
    identification.rst
    build.rst
    calibration.rst
    coding.rst
    dboards.rst
    gpsdo.rst
    general.rst
    images.rst
    stream.rst
    sync.rst
    transport.rst
    usrp1.rst
    usrp2.rst
    usrp_b100.rst
    usrp_e1x0.rst
)

########################################################################
# Setup Manual
########################################################################
MESSAGE(STATUS "")
FIND_PACKAGE(Docutils)

LIBUHD_REGISTER_COMPONENT("Manual" ENABLE_MANUAL ON "DOCUTILS_FOUND" OFF)

IF(UHDHOST_PKG)
    SET(PKG_DOC_DIR share/doc/uhd-host)
ENDIF(UHDHOST_PKG)

IF(ENABLE_MANUAL)
    #setup rst2html options
    SET(stylesheet ${CMAKE_CURRENT_SOURCE_DIR}/style.css)
    SET(rst2html_options
        --stylesheet=${stylesheet}
        --no-toc-backlinks --date --time
    )

    #create generation rule for each source
    FOREACH(rstfile ${manual_sources})
        #set input and output file names
        SET(rstfile ${CMAKE_CURRENT_SOURCE_DIR}/${rstfile})
        GET_FILENAME_COMPONENT(rstfile_we ${rstfile} NAME_WE)
        SET(htmlfile ${CMAKE_CURRENT_BINARY_DIR}/${rstfile_we}.html)

        #make the html file depend on the rst file
        ADD_CUSTOM_COMMAND(
            OUTPUT ${htmlfile} DEPENDS ${rstfile} ${stylesheet}
            COMMAND ${RST2HTML_EXECUTABLE} ${rstfile} ${htmlfile} ${rst2html_options}
            COMMENT "Generating ${htmlfile}"
        )

        #make the manual target depend on the html file
        LIST(APPEND manual_html_files ${htmlfile})
        UHD_INSTALL(FILES ${htmlfile} DESTINATION ${PKG_DOC_DIR}/manual/html COMPONENT manual)
    ENDFOREACH(rstfile ${manual_sources})

    #make the html manual a build-time dependency
    ADD_CUSTOM_TARGET(manual_html ALL DEPENDS ${manual_html_files})
    UHD_INSTALL(FILES ${manual_sources} DESTINATION ${PKG_DOC_DIR}/manual/rst COMPONENT manual)
ENDIF(ENABLE_MANUAL)

########################################################################
# Setup Doxygen
########################################################################
MESSAGE(STATUS "")
FIND_PACKAGE(Doxygen)

LIBUHD_REGISTER_COMPONENT("Doxygen" ENABLE_DOXYGEN ON "DOXYGEN_FOUND" OFF)

IF(LIBUHDDEV_PKG)
    SET(PKG_DOC_DIR share/doc/libuhd-dev)
ENDIF(LIBUHDDEV_PKG)

IF(ENABLE_DOXYGEN)
    #generate the doxygen configuration file
    SET(CMAKE_CURRENT_BINARY_DIR_DOXYGEN ${CMAKE_CURRENT_BINARY_DIR}/doxygen)
    CONFIGURE_FILE(
        ${CMAKE_CURRENT_SOURCE_DIR}/Doxyfile.in
        ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile
    @ONLY)

    #make doxygen directory depend on the header files
    FILE(GLOB_RECURSE header_files ${CMAKE_SOURCE_DIR}/include/*.hpp)
    ADD_CUSTOM_COMMAND(
        OUTPUT ${CMAKE_CURRENT_BINARY_DIR_DOXYGEN} DEPENDS ${header_files}
        COMMAND ${DOXYGEN_EXECUTABLE} ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile
        COMMENT "Generating documentation with doxygen"
    )

    #make the doxygen generation a built-time dependency
    ADD_CUSTOM_TARGET(doxygen_docs ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR_DOXYGEN})
    UHD_INSTALL(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR_DOXYGEN} DESTINATION ${PKG_DOC_DIR} COMPONENT doxygen)
ENDIF(ENABLE_DOXYGEN)

########################################################################
# List of man page sources
########################################################################

SET(man_page_sources
    uhd_cal_rx_iq_balance.1
    uhd_cal_tx_dc_offset.1
    uhd_cal_tx_iq_balance.1
    uhd_find_devices.1
    uhd_images_downloader.1
    uhd_usrp_probe.1
    usrp_n2xx_simple_net_burner.1
    usrp2_card_burner.1
)

########################################################################
# Setup man pages
########################################################################
MESSAGE(STATUS "")
FIND_PACKAGE(GZip)

LIBUHD_REGISTER_COMPONENT("Man Pages" ENABLE_MAN_PAGES ON "GZIP_FOUND;LINUX" OFF)

IF(ENABLE_MAN_PAGES)
    #Generate man pages
    FOREACH(manfile ${man_page_sources})
        #make the gzip file depend on the text file
        STRING(REPLACE ".1" "" PROGRAM_NAME "${manfile}")
        SET(gzfile "${CMAKE_CURRENT_BINARY_DIR}/${manfile}.gz")
        SET(manfile "${CMAKE_CURRENT_SOURCE_DIR}/${manfile}")
        ADD_CUSTOM_COMMAND(
            OUTPUT ${gzfile}
            DEPENDS ${manfile}
            COMMAND ${GZIP_EXECUTABLE} -9 -cf ${manfile} > ${gzfile}
            COMMENT "Generating ${PROGRAM_NAME} man page"
        )

        #make the man page target depend on the gz file
        LIST(APPEND man_page_gz_files ${gzfile})
        UHD_INSTALL(FILES ${gzfile} DESTINATION ${PKG_MAN_DIR} COMPONENT manpages)
    ENDFOREACH(manfile ${man_page_sources})

    #make the man pages a build-time dependency
    ADD_CUSTOM_TARGET(man_page_gzips ALL DEPENDS ${man_page_gz_files})
ENDIF(ENABLE_MAN_PAGES)