# This file is part of LyX, the document processor.
# Licence details can be found in the file COPYING.
#
# Copyright (c) 2008-2011 Peter Kümmel, <syntheticpp@gmx.net>
# Copyright (c) 2008-2011 Kornel Benko, <Kornel.Benko@berlin.de>
#

project(po)

include_directories(${TOP_SRC_DIR}/po)

SET(_lyxname ${PACKAGE})
SET(_py_sources)

macro(add_gettext_python  _par _dir)
  set(_sources)
  foreach(_arg ${ARGN})
    file(GLOB _s1 ${TOP_SRC_DIR}/${_dir}/${_arg})
    list(SORT _s1)
    list(APPEND _sources ${_s1})
  endforeach(_arg)
  if (${_par} MATCHES "layouttranslations")
    SET(_dst "${CMAKE_CURRENT_BINARY_DIR}/${_par}")
  else ()
    SET(_dst "${CMAKE_CURRENT_BINARY_DIR}/${_par}_l10n.pot")
  endif()
  SET(_tmp_src_files "${CMAKE_CURRENT_BINARY_DIR}/${_par}_tmp_files")
  SET(_src_files "${CMAKE_CURRENT_BINARY_DIR}/${_par}_files")
  file(WRITE ${_tmp_src_files} "")
  foreach(_s ${_sources})
    FILE(APPEND ${_tmp_src_files} "${_s}\n")
  endforeach()
  if(${_par} MATCHES "^\(.*\)_[0-9]+$")
    set(_par1 ${CMAKE_MATCH_1})
  else()
    set(_par1 ${_par})
  endif()
  ADD_CUSTOM_COMMAND(
    OUTPUT ${_src_files}
    COMMAND ${CMAKE_COMMAND} -E copy_if_different ${_tmp_src_files} ${_src_files}
    DEPENDS ${_tmp_src_files}
  )
  if (${_par} MATCHES "layouttranslations")
    # lyx_pot.py requires the module "polib" if using target layouttranslations1,
    # so we have to check for it
    find_python_module("polib")
    if ("${LYX_PY_POLIB}" STREQUAL "")
      message(STATUS "You will be unable to update layouttranslations file")
    endif()
    ADD_CUSTOM_COMMAND(
      OUTPUT "${_dst}"
      PRE_BUILD
      COMMAND  ${CMAKE_COMMAND}
	"-DTOP_SRC_DIR=${TOP_SRC_DIR}"
	"-DDestFile=${_dst}"
	"-DLYX_PYTHON_EXECUTABLE=${LYX_PYTHON_EXECUTABLE}"
	"-DParType=${_par1}"
	"-DSources=${_src_files}"
        "-DLYX_PY_POLIB=${LYX_PY_POLIB}"
	-P "${TOP_SRC_DIR}/po/CreateLayoutTranslations.cmake"
      DEPENDS ${_sources} ${_src_files} "${TOP_SRC_DIR}/lib/layouttranslations" "${TOP_SRC_DIR}/po/lyx_pot.py"
      COMMENT "${LYX_PYTHON_EXECUTABLE} ${TOP_SRC_DIR}/po/lyx_pot.py -b ${TOP_SRC_DIR} -o  ${_dst} -t ${_par1} --src_file=${_src_files}"
      )
    ADD_CUSTOM_TARGET(layouttranslations1 DEPENDS "${_dst}")
	set_target_properties(layouttranslations1 PROPERTIES FOLDER "i18n")
    if (LYX_DATA_SUBDIR STREQUAL "")
      install(FILES "${TOP_SRC_DIR}/lib/layouttranslations" DESTINATION .)
    else()
      install(FILES "${TOP_SRC_DIR}/lib/layouttranslations" DESTINATION ${LYX_DATA_SUBDIR})
    endif()
  else()
    ADD_CUSTOM_COMMAND(
      OUTPUT "${_dst}"
      PRE_BUILD
      COMMAND ${LYX_PYTHON_EXECUTABLE}
      ARGS "${TOP_SRC_DIR}/po/lyx_pot.py" -b "${TOP_SRC_DIR}" -o "${_dst}" -t ${_par1} "--src_file=${_src_files}"
      DEPENDS ${_sources} ${_src_files} "${TOP_SRC_DIR}/po/lyx_pot.py"
      COMMENT "${LYX_PYTHON_EXECUTABLE} ${TOP_SRC_DIR}/po/lyx_pot.py -b ${TOP_SRC_DIR} -o  ${_dst} -t ${_par1} --src_file=${_src_files}"
      )
    LIST(APPEND _py_sources "${_dst}")
  endif()
  SET_SOURCE_FILES_PROPERTIES("${_dst}" GENERATED)
  SET_SOURCE_FILES_PROPERTIES("${_src_files}" GENERATED)
endmacro(add_gettext_python)

SET_SOURCE_FILES_PROPERTIES("${CMAKE_CURRENT_BINARY_DIR}/${_lyxname}.cat.pot" GENERATED)
SET_SOURCE_FILES_PROPERTIES("${CMAKE_CURRENT_BINARY_DIR}/${_lyxname}.fmt.pot" GENERATED)
SET_SOURCE_FILES_PROPERTIES("${CMAKE_CURRENT_BINARY_DIR}/${_lyxname}.pot" GENERATED)
if (UNIX)
  # create symbolic links for external lokalizations programs
  # to be able to find the referenced sources if used on
  # built po-files
  foreach (_dir lib src)
    execute_process(
      COMMAND ${CMAKE_COMMAND} -E create_symlink "${TOP_SRC_DIR}/${_dir}" "${CMAKE_CURRENT_BINARY_DIR}/${_dir}")
  endforeach()
endif()

add_gettext_python(layouttranslations lib layouts/*.layout layouts/*.inc layouts/*.module citeengines/*.citeengine)
add_gettext_python(languages lib languages)
add_gettext_python(layouts lib layouts/*.layout layouts/*.inc layouts/*.module citeengines/*.citeengine)
add_gettext_python(latexfonts lib latexfonts)
add_gettext_python(encodings lib encodings)
add_gettext_python(ui lib/ui *.ui *.inc)
add_gettext_python(external lib/xtemplates *.xtemplate)
add_gettext_python(formats lib configure.py)
add_gettext_python(tabletemplates lib tabletemplates/*.lyx)
add_gettext_python(qt src/frontends/qt/ui *.ui)
add_gettext_python(examples_templates lib examples/[a-zA-Z]* templates/[a-zA-Z]*)

ADD_CUSTOM_COMMAND(
    OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${_lyxname}.cat.pot"
    COMMAND ${LYX_PYTHON_EXECUTABLE}
    ARGS   "${TOP_CMAKE_PATH}/po/cat.py" ${_py_sources} > "${CMAKE_CURRENT_BINARY_DIR}/${_lyxname}.cat_tmp.pot"
    COMMAND ${CMAKE_COMMAND} -E copy_if_different
      "${CMAKE_CURRENT_BINARY_DIR}/${_lyxname}.cat_tmp.pot" "${CMAKE_CURRENT_BINARY_DIR}/${_lyxname}.cat.pot"
    DEPENDS ${_py_sources}
    )

ADD_CUSTOM_COMMAND(
    OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${_lyxname}.fmt.pot"
    COMMAND ${GETTEXT_MSGUNIQ_EXECUTABLE}
    ARGS -o "${CMAKE_CURRENT_BINARY_DIR}/${_lyxname}.fmt_tmp.pot" "${CMAKE_CURRENT_BINARY_DIR}/${_lyxname}.cat.pot"
    COMMAND ${CMAKE_COMMAND} -E copy_if_different
      "${CMAKE_CURRENT_BINARY_DIR}/${_lyxname}.fmt_tmp.pot" "${CMAKE_CURRENT_BINARY_DIR}/${_lyxname}.fmt.pot"
    DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/${_lyxname}.cat.pot"
    )

SET(_potfiles_dep)

file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/POTFILES.in.tmp "")
file(GLOB_RECURSE _tmp_potfiles RELATIVE ${TOP_SRC_DIR}/ ${TOP_SRC_DIR}/src/*.h  ${TOP_SRC_DIR}/src/*.cpp  ${TOP_SRC_DIR}/src/*.cpp.in)
list(SORT _tmp_potfiles)
# list(REMOVE_ITEM _tmp_potfiles src/support/Package.cpp)

foreach(_f ${_tmp_potfiles})
  # we don't need to select only relevant files because the outcome of xgettext
  # will stay the same.
  # Relevant files are files containing the string '_(".*")'
  LIST(APPEND _potfiles_dep "${TOP_SRC_DIR}/${_f}")
  file(APPEND ${CMAKE_CURRENT_BINARY_DIR}/POTFILES.in.tmp "${_f}\n")
endforeach(_f)

execute_process(
  COMMAND ${CMAKE_COMMAND} -E copy_if_different "${CMAKE_CURRENT_BINARY_DIR}/POTFILES.in.tmp" "${CMAKE_CURRENT_BINARY_DIR}/POTFILES.in"
  )

if (GETTEXT_MSGCAT_EXECUTABLE)
  ADD_CUSTOM_COMMAND(
	OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${_lyxname}.pot"
	COMMAND ${GETTEXT_XGETTEXT_EXECUTABLE}
	--from-code=UTF-8
	--default-domain=${_lyxname} --directory=${TOP_SRC_DIR}
	--add-comments=TRANSLATORS:
	--language=C++ --keyword=_ --keyword=N_ --keyword=B_ --keyword=qt_
	--files-from=${CMAKE_CURRENT_BINARY_DIR}/POTFILES.in
	--copyright-holder="LyX Developers" --msgid-bugs-address=lyx-devel@lists.lyx.org
	-o "${CMAKE_CURRENT_BINARY_DIR}/${_lyxname}.src.pot"
	COMMAND ${GETTEXT_MSGCAT_EXECUTABLE} "${CMAKE_CURRENT_BINARY_DIR}/${_lyxname}.src.pot" "${CMAKE_CURRENT_BINARY_DIR}/${_lyxname}.fmt.pot" -o "${CMAKE_CURRENT_BINARY_DIR}/${_lyxname}.pot"
	DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/${_lyxname}.fmt.pot" ${_potfiles_dep}
  )

else()
  ADD_CUSTOM_COMMAND(
	OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${_lyxname}.pot"
	COMMAND ${CMAKE_COMMAD} -E copy "${CMAKE_CURRENT_BINARY_DIR}/${_lyxname}.fmt.pot" "${CMAKE_CURRENT_BINARY_DIR}/${_lyxname}.pot"
	COMMAND ${GETTEXT_XGETTEXT_EXECUTABLE}
	--from-code=UTF-8
	--default-domain=${_lyxname} --directory=${TOP_SRC_DIR}
	--add-comments=TRANSLATORS:
	--language=C++ --join-existing --keyword=_ --keyword=N_ --keyword=B_ --keyword=qt_
	--files-from=${CMAKE_CURRENT_BINARY_DIR}/POTFILES.in
	--copyright-holder="LyX Developers" --msgid-bugs-address=lyx-devel@lists.lyx.org
	-o "${CMAKE_CURRENT_BINARY_DIR}/${_lyxname}.pot"
	DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/${_lyxname}.fmt.pot" ${_potfiles_dep}
  )

endif()
#
# We have to copy the po-files first,
# otherwise they would be modified (inside the macro GETTEXT_CREATE_TRANSLATIONS())
# This makes the "git pull" on po-files work again
file(GLOB LYX_BASE_PO_FILES RELATIVE ${TOP_SRC_DIR}/po ${TOP_SRC_DIR}/po/*.po)
list(SORT LYX_BASE_PO_FILES)
set(LYX_PO_FILES)
SET(LYX_UPDATED_PO_FILES)
SET(LYX_DEST_PO ${TOP_SRC_DIR}/po)

set(CONFIGURED_LANGUAGES)		# from file LINGUAS
set(INSTALLED_LANGUAGES)		# from names of existing po-files

file(STRINGS "${TOP_SRC_DIR}/po/LINGUAS" _lang_lines)
foreach(_c_l ${_lang_lines})
  if(NOT _c_l MATCHES "^#.*")
    string(REPLACE " " ";" _c_l ${_c_l}) #Split ${_c_l}
    list(APPEND CONFIGURED_LANGUAGES ${_c_l})
  endif()
endforeach(_c_l)

foreach(_pofile ${LYX_BASE_PO_FILES})
  string(REGEX REPLACE "^(.*)\\.po$" "\\1" _inst_lng ${_pofile})
  list(FIND CONFIGURED_LANGUAGES ${_inst_lng} _lng_idx)
  if(_lng_idx GREATER -1)
    list(APPEND INSTALLED_LANGUAGES ${_inst_lng})
  endif()
  add_custom_command(
    OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${_pofile}
    COMMAND ${CMAKE_COMMAND} -E copy ${TOP_SRC_DIR}/po/${_pofile} ${CMAKE_CURRENT_BINARY_DIR}/${_pofile}
    DEPENDS ${TOP_SRC_DIR}/po/${_pofile}
    )
  list(APPEND LYX_PO_FILES ${CMAKE_CURRENT_BINARY_DIR}/${_pofile})
endforeach(_pofile)

FIND_PROGRAM(LYX_GITVERSION git)
set(LYX_UPDATED_GMO_FILES)
foreach(_gmo_base ${INSTALLED_LANGUAGES})
  set(_gmo ${_gmo_base}.gmo)
  set(_tobeupdated "${CMAKE_CURRENT_BINARY_DIR}/${_gmo}.tobeupdated")
  list(APPEND LYX_UPDATED_GMO_FILES "${_tobeupdated}")
  if(LYX_GITVERSION)
    add_custom_command(
      OUTPUT "${_tobeupdated}"
	  COMMAND "${LYX_GITVERSION}" "status" "--porcelain" "${_gmo_base}.po" ">" "${_tobeupdated}"
	  COMMAND ${LYX_PYTHON_EXECUTABLE} "${TOP_CMAKE_PATH}/po/update-gmo.py" 
		"${_tobeupdated}"
		"${CMAKE_CURRENT_BINARY_DIR}/${_gmo}"
		"${LYX_DEST_PO}/${_gmo}"
	  WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
      DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/${_gmo}"
      )
  else()
    add_custom_command(
      OUTPUT "${_tobeupdated}"
      COMMAND ${CMAKE_COMMAND} -E copy_if_different "${CMAKE_CURRENT_BINARY_DIR}/${_gmo}" "${LYX_DEST_PO}/${_gmo}"
      COMMAND ${CMAKE_COMMAND} -E touch "${_tobeupdated}"
      DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/${_gmo}"
    )
  endif()
endforeach()

set(LYX_UPDATED_PO_FILES)
foreach(_pofile ${LYX_BASE_PO_FILES})
  if(WIN32)
    add_custom_command(
      OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${_pofile}.copied
      COMMAND ${LYX_PYTHON_EXECUTABLE}
        ARGS   "${TOP_CMAKE_PATH}/po/unix2dos.py" "${CMAKE_CURRENT_BINARY_DIR}/${_pofile}"
      COMMAND ${CMAKE_COMMAND} -E copy_if_different ${CMAKE_CURRENT_BINARY_DIR}/${_pofile} ${LYX_DEST_PO}/${_pofile}
      COMMAND ${CMAKE_COMMAND} -E touch ${_pofile}.copied
      DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${_pofile}
      )
  else()
    add_custom_command(
      OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${_pofile}.copied
      COMMAND ${CMAKE_COMMAND} -E copy_if_different ${CMAKE_CURRENT_BINARY_DIR}/${_pofile} ${LYX_DEST_PO}/${_pofile}
      COMMAND ${CMAKE_COMMAND} -E touch ${_pofile}.copied
      DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${_pofile}
      )
  endif()
  list(APPEND LYX_UPDATED_PO_FILES ${CMAKE_CURRENT_BINARY_DIR}/${_pofile}.copied)
endforeach(_pofile)

if(LYX_CPACK OR LYX_INSTALL)
  set(_addALLOption ALL)
endif()
GETTEXT_CREATE_TRANSLATIONS(${CMAKE_CURRENT_BINARY_DIR}/${_lyxname}.pot ${_addALLOption} ${LYX_PO_FILES})

# Create a new target to remerge po files
# ALL omitted here, to prevent from automatic creation
ADD_CUSTOM_TARGET(update-gmo DEPENDS ${LYX_UPDATED_GMO_FILES})
ADD_CUSTOM_TARGET(update-po DEPENDS ${LYX_UPDATED_PO_FILES} ${LYX_UPDATED_GMO_FILES})
set_target_properties(update-po update-gmo PROPERTIES FOLDER "i18n")
add_dependencies(update-po translations)
add_dependencies(update-gmo translations)
add_dependencies(update-gmo update-po)