#!/bin/bash
######################################################################
#
#   render_setLocalizedXml.sh -- This function standardizes the way
#   (.po) translation files are applied to XML files (e.g., .docbook,
#   .svg) in order to produce their related translated instances, used
#   to expand translation markers and produce the final file format in
#   different languages.  Assuming no translation file exists, an
#   untranslated instance is taken from the design model and created
#   (i.e., just a copy) from it.  Using a design model instance
#   (translated or not) is required in order to expand translation
#   markers safely.
#
#   Written by:
#   * Alain Reguera Delgado <al@centos.org.cu>, 2009-2013
#
# Copyright (C) 2009-2013 The CentOS Artwork SIG
#
# 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 2 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, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#
######################################################################

function render_setLocalizedXml {

    local SOURCE=${1}
    local TARGET=${2}

    local TRANSLATION=$(tcar_getTemporalFile "messages.po")

    # By default source instances are created inside /tmp directory
    # and are localized before reaching base rendition.  In case a
    # source instance is being used as source here, don't duplicate
    # it.  Try to reuse it, instead.

    if [[ ! ${SOURCE} =~ '^/tmp' ]];then

        if [[ ${RENDER_FLAG_NO_LOCALE} != 'true' ]];then

            # Verify existence of translation files.
            tcar_checkFiles -efi 'text/x-po' ${TRANSLATIONS[*]}

            # Combine available translations file into one translation
            # instance.
            msgcat -u -o ${TRANSLATION} ${TRANSLATIONS[*]}

            # Move to final location before processing source file in
            # order for relative calls (e.g., image files) inside the
            # source files can be found by xml2po and no warning be
            # printed from it.
            pushd $(dirname ${RENDER_TARGET}) > /dev/null

            # Create the translated instance of design model.
            tcar_printFile ${SOURCE} | xml2po -a -l ${TCAR_SCRIPT_LANG_LC} \
                -p ${TRANSLATION} -o ${TARGET} -

            # Remove .xml2po.mo temporal file.
            if [[ -f ./.xml2po.mo ]];then
                rm ./.xml2po.mo
            fi

            # Return to previous location.
            popd > /dev/null

            # Remove instance created to store both licenses and template
            # translations.
            if [[ -f ${TRANSLATION} ]];then
                rm ${TRANSLATION}
            fi

            # xml2po (gnome-doc-utils-0.8.0-2.fc6) bug? For some
            # reason, xml2po is not adding the lang attribute to
            # refentry tag, when producing manpages document types.
            # This make intrinsic docbook construction for manpages
            # like Name and Synopsis to be not localized.  This
            # doesn't happens with article and
            # book document types.
            if [[ ${RENDER_FLOW} == 'manpage' ]];then
                sed -i -r "s/<refentry>/<refentry lang=\"${TCAR_SCRIPT_LANG_LC}\">/" ${TARGET}
            fi

        else

            tcar_printFile ${SOURCE} > ${TARGET}

        fi

        # Make your best to be sure the file you've created is a valid
        # XML file.
        tcar_checkFiles -efi 'text/xml' ${TARGET}

    else

        /bin/ln -s ${SOURCE} ${TARGET} 

        # Make your best to be sure the file you've linked is a valid
        # XML file.
        tcar_checkFiles -efi 'text/xml' ${SOURCE}

    fi

}