# Files in ./share/completions/
FILE(GLOB COMPLETIONS_DIR_FILES share/completions/*.fish)

# Files in ./share/functions/
FILE(GLOB FUNCTIONS_DIR_FILES share/functions/*.fish)

# Files in doc_src
FILE(GLOB DOC_SRC_FILES doc_src/*)

# .txt files in doc_src
FILE(GLOB HELP_SRC doc_src/*.txt)

# These files are the source files, they contain a few @FOO@-style substitutions.
# Note that this order defines the order that they appear in the documentation.
SET(HDR_FILES_SRC doc_src/index.hdr.in doc_src/tutorial.hdr doc_src/design.hdr
                  doc_src/license.hdr doc_src/commands.hdr.in doc_src/faq.hdr)

# These are the generated result files.
STRING(REPLACE ".in" "" HDR_FILES "${HDR_FILES_SRC}")

# Header files except for index.hdr
SET(HDR_FILES_NO_INDEX ${HDR_FILES})
LIST(REMOVE_ITEM HDR_FILES_NO_INDEX doc_src/index.hdr)

# Copy doc_src files
FILE(COPY ${DOC_SRC_FILES} DESTINATION doc_src)

# Build lexicon_filter.
ADD_CUSTOM_COMMAND(OUTPUT lexicon_filter
                   COMMAND build_tools/build_lexicon_filter.sh
                              ${CMAKE_CURRENT_SOURCE_DIR}/share/functions/
                              ${CMAKE_CURRENT_SOURCE_DIR}/share/completions/
                              ${SED}
                              < ${CMAKE_CURRENT_SOURCE_DIR}/lexicon_filter.in
                              > ${CMAKE_CURRENT_BINARY_DIR}/lexicon_filter
                                && chmod a+x ${CMAKE_CURRENT_BINARY_DIR}/lexicon_filter
                  WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
                  DEPENDS ${FUNCTIONS_DIR_FILES} ${COMPLETIONS_DIR_FILES}
                          doc_src/commands.hdr ${CMAKE_CURRENT_SOURCE_DIR}/lexicon_filter.in
                          share/functions/__fish_config_interactive.fish
                          build_tools/build_lexicon_filter.sh)

ADD_CUSTOM_TARGET(build_lexicon_filter DEPENDS lexicon_filter)

#
# commands.dr collects documentation on all commands, functions and
# builtins
#
FILE(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/doc_src)
ADD_CUSTOM_COMMAND(OUTPUT doc_src/commands.hdr
                   WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
                   COMMAND build_tools/build_commands_hdr.sh ${HELP_SRC}
                               < doc_src/commands.hdr.in
                               > ${CMAKE_CURRENT_BINARY_DIR}/doc_src/commands.hdr
                   DEPENDS ${HELP_SRC}
                           ${CMAKE_CURRENT_SOURCE_DIR}/doc_src/commands.hdr.in
                           ${CMAKE_CURRENT_SOURCE_DIR}/build_tools/build_commands_hdr.sh)

# doc.h is a compilation of the various snipptes of text used both for
# the user documentation and for internal help functions into a single
# file that can be parsed by Doxygen to generate the user
# documentation.
ADD_CUSTOM_COMMAND(OUTPUT doc.h
                   COMMAND cat ${HDR_FILES} > ${CMAKE_CURRENT_BINARY_DIR}/doc.h
                   DEPENDS ${HDR_FILES})

# toc.txt: $(HDR_FILES:index.hdr=index.hdr.in) build_tools/build_toc_txt.sh | show-SED
#   FISH_BUILD_VERSION=${FISH_BUILD_VERSION} build_tools/build_toc_txt.sh \
#     $(HDR_FILES:index.hdr=index.hdr.in) > toc.txt
# Note we would like to add doc_src/index.hdr.in as a dependency but CMake replaces this with
# doc_src/index.hdr; CMake bug?
ADD_CUSTOM_COMMAND(OUTPUT toc.txt
                   COMMAND env `cat ${FBVF}` ${CMAKE_CURRENT_SOURCE_DIR}/build_tools/build_toc_txt.sh
                           doc_src/index.hdr.in ${HDR_FILES_NO_INDEX}
                           > ${CMAKE_CURRENT_BINARY_DIR}/toc.txt
                   DEPENDS ${FBVF} ${HDR_FILES_NO_INDEX})

# doc_src/index.hdr: toc.txt doc_src/index.hdr.in | show-AWK
# @echo "  AWK CAT  $(em)$@$(sgr0)"
# $v cat $@.in | $(AWK) '{if ($$0 ~ /@toc@/){ system("cat toc.txt");} else{ print $$0;}}' >$@
ADD_CUSTOM_COMMAND(OUTPUT doc_src/index.hdr
                   COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/build_tools/build_index_hdr.sh toc.txt
                           < doc_src/index.hdr.in
                           > ${CMAKE_CURRENT_BINARY_DIR}/doc_src/index.hdr
                   DEPENDS toc.txt)

# doc: $(HDR_FILES_SRC) Doxyfile.user $(HTML_SRC) $(HELP_SRC) doc.h $(HDR_FILES) lexicon_filter
#   @echo "  doxygen  $(em)user_doc$(sgr0)"
#   $v (cat Doxyfile.user; echo INPUT_FILTER=./lexicon_filter; echo PROJECT_NUMBER=$(FISH_BUILD_VERSION) | $(SED) "s/-.*//") | doxygen - && touch user_doc
#   $v rm -f $(wildcard $(addprefix ./user_doc/html/,arrow*.png bc_s.png bdwn.png closed.png doc.png folder*.png ftv2*.png nav*.png open.png splitbar.png sync_*.png tab*.* doxygen.* dynsections.js jquery.js pages.html))
ADD_CUSTOM_TARGET(doc
                  COMMAND env `cat ${FBVF}`
                          ${CMAKE_CURRENT_SOURCE_DIR}/build_tools/build_user_doc.sh
                          ${CMAKE_CURRENT_SOURCE_DIR}/Doxyfile.user ./lexicon_filter
                  DEPENDS ${FBVF} Doxyfile.user ${DOC_SRC_FILES} doc.h ${HDR_FILES} lexicon_filter)

ADD_CUSTOM_COMMAND(OUTPUT share/man/
                   COMMAND env `cat ${FBVF}`
                           INPUT_FILTER=lexicon_filter ${CMAKE_CURRENT_SOURCE_DIR}/build_tools/build_documentation.sh ${CMAKE_CURRENT_SOURCE_DIR}/Doxyfile.help doc_src ./share
                   DEPENDS ${FBVF} ${HELP_SRC} ${CMAKE_CURRENT_BINARY_DIR}/lexicon_filter)

ADD_CUSTOM_TARGET(BUILD_MANUALS ALL DEPENDS share/man/)

# Group docs targets into a DocsTargets folder
SET_PROPERTY(TARGET doc BUILD_MANUALS
             PROPERTY FOLDER cmake/DocTargets)