find_package(Doxygen)
find_package(Sphinx)


if (DOXYGEN_FOUND AND SPHINX_FOUND)
    message(${CMAKE_PROJECT_SORURCE_DIR}/slsDetectorSoftware/src)
    # Utility to generate command line documentation
    add_executable(gendoc src/gendoc.cpp)
    # This is a bit hacky, but better than exposing stuff? 
    target_include_directories(gendoc PRIVATE ${PROJECT_SOURCE_DIR}/slsDetectorSoftware/src)
    target_link_libraries(gendoc PRIVATE
      slsDetectorShared
    )
    set_target_properties(gendoc PROPERTIES 
      RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin
    )

    
    

    #Doxygen
    set(DOXYGEN_IN ${CMAKE_CURRENT_SOURCE_DIR}/Doxyfile.in)
    set(DOXYGEN_OUT ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile)
    configure_file(${DOXYGEN_IN} ${DOXYGEN_OUT} @ONLY)

    #Sphinx
    set(SPHINX_SOURCE ${CMAKE_CURRENT_SOURCE_DIR}/src)
    set(SPHINX_BUILD ${CMAKE_CURRENT_BINARY_DIR})

    set(SPHINX_SOURCE_FILES
      src/commandline.rst
      src/container_utils.rst
      src/dependencies.rst
      src/detector.rst
      src/index.rst
      src/installation.rst
      src/pydetector.rst
      src/pyenums.rst
      src/pyexamples.rst
      src/receiver.rst
      src/result.rst
      src/type_traits.rst
      src/ToString.rst
      
    )

    foreach(filename ${SPHINX_SOURCE_FILES})
      configure_file(${CMAKE_CURRENT_SOURCE_DIR}/${filename} 
                    "${SPHINX_BUILD}/${filename}")
    endforeach(filename ${SPHINX_SOURCE_FILES})

    configure_file(
        "${CMAKE_CURRENT_SOURCE_DIR}/conf.py.in"
        "${SPHINX_BUILD}/conf.py"
        @ONLY)

    add_custom_target(docs
                    gendoc
                    COMMAND ${DOXYGEN_EXECUTABLE} ${DOXYGEN_OUT}
                    COMMAND ${SPHINX_EXECUTABLE} -a -b html
                    -Dbreathe_projects.slsDetectorPackage=${CMAKE_CURRENT_BINARY_DIR}/xml
                    -c "${SPHINX_BUILD}"
                    ${SPHINX_BUILD}/src 
                    ${SPHINX_BUILD}/html
                    COMMENT "Generating documentation with Sphinx")

else (DOXYGEN_FOUND AND SPHINX_FOUND)
  message("Doxygen and Sphinx are needed to build documentation")
endif (DOXYGEN_FOUND AND SPHINX_FOUND)