#!/bin/bash

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

#

#   locale_updateMessageMetadata.sh -- This function sanitates .pot

#   and .po files to use common translation markers inside top

#   comment.  Later, replacement of common translation markers is

#   applied to set the final information.

#

#   Written by:

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

#

# Copyright (C) 2009-2013 The CentOS Project

#

# 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 locale_updateMessageMetadata {

    local COUNT=0

    local -a SRC

    local -a DST

    # Retrieve absolute path of portable object we'll work with.

    local PO="${1}"

    # Check existence of file before work with it.

    tcar_checkFiles "${PO}" -f

    # Define pattern lines. The pattern lines are put inside portable

    # objects through xgettext and xml2po commands. In the case of

    # Last-Translators, be sure to remplace it only when it is empty

    # or refer the Documentation SIG only. This way translators' names

    # will survive metadata updates. We don't want they have to type

    # their name each time they edit a file.

    SRC[0]="\"Project-Id-Version:"

    SRC[1]="\"Report-Msgid-Bugs-To:"

    SRC[2]="\"Last-Translator: (.+)?"

    SRC[3]="\"Language-Team:"

    SRC[4]="\"PO-Revision-Date:"

    # Define replacement lines for pattern line.

    DST[0]="\"Project-Id-Version: ${TCAR_SCRIPT_NAME} ${TCAR_SCRIPT_VERSION}\\\n\""

    DST[1]="\"Report-Msgid-Bugs-To: Documentation SIG <centos-docs@centos.org.cu>\\\n\""

    DST[2]="\"Last-Translator: Documentation SIG <centos-docs@centos.org.cu>\\\n\""

    DST[3]="\"Language-Team: $(locale_getLanguageName)\\\n\""

    DST[4]="\"PO-Revision-Date: $(date "+%F %H:%M%z")\\\n\""

    # Change pattern lines with their replacement lines.

    while [[ $COUNT -lt ${#SRC[*]} ]];do

        sed -i -r "/${SRC[$COUNT]}/c${DST[$COUNT]}" ${PO}

        COUNT=$(($COUNT + 1))

    done

    # When the .pot file is created using xml2po the

    # `Report-Msgid-Bugs-To:' metadata field isn't created like it

    # does when xgettext is used. So, in order to have such metadata

    # field in all .pot files, verify its existence and add it if it

    # doesn't exist.

    egrep "^\"${SRC[1]}" ${PO} > /dev/null

    if [[ $? -ne 0 ]];then

        sed -i -r "/^\"${SRC[0]}/a${DST[1]}" ${PO}

    fi

    # Replace package information using gettext domain information.

    sed -i -r "s/PACKAGE/${TCAR_SCRIPT_NAME} ${TCAR_SCRIPT_VERSION}/g" ${PO}

    # Remove absolute path to the working copy so it doesn't appear on

    # comments related to locations. Remember that people can download

    # their working copies in different locations and we don't want to

    # version those changes each time a translation message be

    # updated. To be consistent about this, show path information from

    # first level on. Don't show the variable part of the path.

    sed -i -r "s,${TCAR_BASEDIR}/,,g" ${PO}

    # Unset array variables to avoid undesired concatenations.

    unset SRC

    unset DST

}