find_package(Doxygen)
if(NOT DOXYGEN_FOUND)
    message(STATUS "doxygen not found. Source code documentation via qmcpack_doxygen target requires doxygen and (optionally) dot from graphviz.")
    return()
else()
    message(STATUS "doxygen found. For source code documentation build the qmcpack_doxygen target.")
endif()

set(DOXYGEN_PROJECT_NAME QMCPACK)
set(DOXYGEN_FILE_PATTERNS *.h *.cpp *.doc)
set(DOXYGEN_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
set(DOXYGEN_STRIP_FROM_PATH docs src)
set(DOXYGEN_IMAGE_PATH
    ${PROJECT_SOURCE_DIR}
    ${PROJECT_SOURCE_DIR}/doxygen/images
    "$(DOXYGEN_IMAGE_PATH)"
)
set(DOXYGEN_USE_MDFILE_AS_MAINPAGE ${PROJECT_SOURCE_DIR}/README.md)
set(DOXYGEN_TOC_INCLUDE_HEADINGS 0)
set(DOXYGEN_NUM_PROC_THREADS 0)
set(DOXYGEN_GENERATE_TREEVIEW YES)
set(DOXYGEN_TEMPLATE_RELATIONS YES)
set(DOXYGEN_EXTRACT_ALL YES)
set(DOXYGEN_EXTRACT_PRIVATE YES)
set(DOXYGEN_EXTRACT_STATIC YES)
set(DOXYGEN_SOURCE_BROWSER YES)
set(DOXYGEN_SHORT_NAMES YES)
set(DOXYGEN_JAVADOC_AUTOBRIEF YES)
set(DOXYGEN_DOT_IMAGE_FORMAT svg)
set(DOXYGEN_INTERACTIVE_SVG YES)
set(DOXYGEN_DISTRIBUTE_GROUP_DOC YES)
set(DOXYGEN_INLINE_GROUPED_CLASSES YES)
set(DOXYGEN_INLINE_SIMPLE_STRUCTS YES)
set(DOXYGEN_INLINE_SOURCES YES)
set(DOXYGEN_STRIP_CODE_COMMENTS NO)
set(DOXYGEN_HIDE_SCOPE_NAMES YES)
set(DOXYGEN_SHOW_INCLUDE_FILES NO)
set(DOXYGEN_REFERENCED_BY_RELATION YES)
set(DOXYGEN_REFERENCES_RELATION YES)
set(DOXYGEN_VERBATIM_HEADERS NO)
set(DOXYGEN_TOC_EXPAND YES)
set(DOXYGEN_MACRO_EXPANSION YES)
set(DOXYGEN_EXPAND_ONLY_PREDEF YES)
set(DOXYGEN_SEARCH_INCLUDES NO)
set(DOXYGEN_PREDEFINED DOXYGEN_SHOULD_SKIP_THIS)
set(DOXYGEN_DIRECTORY_GRAPH NO)
set(DOXYGEN_HTML_TIMESTAMP YES)
set(DOXYGEN_ENUM_VALUES_PER_LINE 1)
set(DOXYGEN_GENERATE_TAGFILE qmc_doxygen_tags)
set(DOXYGEN_CALL_GRAPH YES)

doxygen_add_docs(qmcpack_doxygen
    ${PROJECT_SOURCE_DIR}/src
    ${PROJECT_BINARY_DIR}/src/config.h
    ${PROJECT_SOURCE_DIR}/README.md
    ${PROJECT_SOURCE_DIR}/CHANGELOG.md
    WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
)