#!/bin/bash

######################################################################

#

#   tcar - The CentOS Artwork Repository automation tool.

#   Copyright © 2014 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.

#

#   Alain Reguera Delgado <al@centos.org.cu>

#   39 Street No. 4426 Cienfuegos, Cuba.

#

######################################################################

# Standardize 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.

function render_setLocalizedXml {

    # Define absolute path to source instance.

    local SOURCE="${1}"

    # Define absolute path to target instance.

    local TARGET="${2}"

    # Verify source instance and the no-locale flag. When source

    # instance already exists, don't create a new file for it.

    # Instead, link it using a symbolic link. Be careful, such

    # behavior only applies when the source file has no locale.

    # Otherwise, the source file needs to go through the translation

    # process inevitably.

    if [[ -f ${SOURCE} ]];then

        if [[ ${SOURCE} =~ "^${TCAR_SCRIPT_TEMPDIR}" ]];then

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

                tcar_checkFiles -i 'text/xml' ${SOURCE}

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

                return

            fi

        elif [[ ${RENDER_FLAG_NO_LOCALE} == 'true' ]];then

            tcar_printFile ${SOURCE} > ${TARGET}

            tcar_checkFiles -i 'text/xml' ${TARGET}

            return

        fi

    fi

    # Verify existence of translation files.

    tcar_checkFiles -efi 'text/x-po' ${TRANSLATIONS[*]}

    # Define absolute path to translation instance.

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

    # Combine available translations file into one translation

    # instance.

    msgcat -u -o ${TRANSLATION} ${TRANSLATIONS[*]}

    # Verify existence of final location. In case it doesn't exist,

    # create it.

    if [[ $(dirname ${RENDER_TARGET}) ]];then

        mkdir -p $(dirname ${RENDER_TARGET})

    fi

    # 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 localized instance from 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 template translations.

    if [[ -f ${TRANSLATION} ]];then

        rm ${TRANSLATION}

    fi

}