#!/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 construction of translation markers and their related

# expansion. As convention, translation markers must be set inside

# source files (e.g., Docbook, Svg, etc.) and expanded inside temporal

# instances used to produce final contents.

function tcar_setTranslationMarkers {

    # Initialize variables.

    local -a SRC

    local -a DST

    local COUNT=0

    local COUNTSRC=0

    local COUNTDST=0

    # Define source location on which sed replacements take place.

    local LOCATION="${1}"

    # Verify that source location does exist.

    tcar_checkFiles -ef ${LOCATION}

    # Define copyright translation markers.

    SRC[((++${#SRC[*]}))]='=COPYRIGHT_YEAR_FIRST='

    DST[((++${#DST[*]}))]="$(tcar_printCopyrightInfo --first-year)"

    SRC[((++${#SRC[*]}))]='=COPYRIGHT_YEAR(_LAST)?='

    DST[((++${#DST[*]}))]="$(tcar_printCopyrightInfo --year)"

    SRC[((++${#SRC[*]}))]='=COPYRIGHT_YEAR(S)?_LIST='

    DST[((++${#DST[*]}))]="$(tcar_printCopyrightInfo --years-list)"

    SRC[((++${#SRC[*]}))]='=COPYRIGHT_HOLDER='

    DST[((++${#DST[*]}))]="$(tcar_printCopyrightInfo --holder)"

    SRC[((++${#SRC[*]}))]='=COPYRIGHT_HOLDER_PREDICATE='

    DST[((++${#DST[*]}))]="$(tcar_printCopyrightInfo --holder-predicate)"

    # Define license translation markers.

    SRC[((++${#SRC[*]}))]='=LICENSE='

    DST[((++${#DST[*]}))]="$(tcar_printCopyrightInfo --license)"

    SRC[((++${#SRC[*]}))]='=LICENSE_URL='

    DST[((++${#DST[*]}))]="$(tcar_printCopyrightInfo --license-url)"

    # Define theme translation markers.

    SRC[((++${#SRC[*]}))]='=THEME='

    DST[((++${#DST[*]}))]="$(tcar_getPathComponent ${RENDER_TARGET} --motif)"

    SRC[((++${#SRC[*]}))]='=THEMENAME='

    DST[((++${#DST[*]}))]="$(tcar_getPathComponent ${RENDER_TARGET} --motif-name)"

    SRC[((++${#SRC[*]}))]='=THEMERELEASE='

    DST[((++${#DST[*]}))]="$(tcar_getPathComponent ${RENDER_TARGET} --motif-version)"

    # Define url translation markers.

    SRC[((++${#SRC[*]}))]='=URL='

    DST[((++${#DST[*]}))]=$(tcar_printUrl '--home' '--with-locale')

    SRC[((++${#SRC[*]}))]='=URL_WIKI='

    DST[((++${#DST[*]}))]=$(tcar_printUrl '--wiki' '--with-locale')

    SRC[((++${#SRC[*]}))]='=URL_LISTS='

    DST[((++${#DST[*]}))]=$(tcar_printUrl '--lists' '--with-locale')

    SRC[((++${#SRC[*]}))]='=URL_FORUMS='

    DST[((++${#DST[*]}))]=$(tcar_printUrl '--forums' '--with-locale')

    SRC[((++${#SRC[*]}))]='=URL_MIRRORS='

    DST[((++${#DST[*]}))]=$(tcar_printUrl '--mirrors' '--with-locale')

    SRC[((++${#SRC[*]}))]='=URL_DOCS='

    DST[((++${#DST[*]}))]=$(tcar_printUrl '--docs' '--with-locale')

    SRC[((++${#SRC[*]}))]='=URL_PROJECTS='

    DST[((++${#DST[*]}))]=$(tcar_printUrl '--projects' '--with-locale')

    SRC[((++${#SRC[*]}))]='=URL_BUGS='

    DST[((++${#DST[*]}))]=$(tcar_printUrl '--bugs' '--with-locale')

    SRC[((++${#SRC[*]}))]='=URL_SVN='

    DST[((++${#DST[*]}))]=$(tcar_printUrl '--svn' '--with-locale')

    SRC[((++${#SRC[*]}))]='=URL_TRAC='

    DST[((++${#DST[*]}))]=$(tcar_printUrl '--trac' '--with-locale')

    SRC[((++${#SRC[*]}))]='=URL_PLANET='

    DST[((++${#DST[*]}))]=$(tcar_printUrl '--planet' '--with-locale')

    # Define release translation markers.

    SRC[((++${#SRC[*]}))]='=RELEASE='

    DST[((++${#DST[*]}))]=${RELEASE}

    SRC[((++${#SRC[*]}))]='=MAJOR_RELEASE='

    DST[((++${#DST[*]}))]=${MAJOR_RELEASE}

    # Define emails translation markers.

    SRC[((++${#SRC[*]}))]='=MAIL_DOCS='

    DST[((++${#DST[*]}))]="$(tcar_printMailingList --docs)"

    # Define locale translation markers.

    SRC[((++${#SRC[*]}))]='=LOCALE='

    DST[((++${#DST[*]}))]="${TCAR_SCRIPT_LANG_LC}"

    SRC[((++${#SRC[*]}))]='=LOCALE_LL='

    DST[((++${#DST[*]}))]="${TCAR_SCRIPT_LANG_LL}"

    SRC[((++${#SRC[*]}))]='=LOCALE_CC='

    DST[((++${#DST[*]}))]="${TCAR_SCRIPT_LANG_CC}"

    # Define domain translation markers for domains.

    SRC[((++${#SRC[*]}))]='=DOMAIN_LL='

    if [[ ! ${TCAR_SCRIPT_LANG_LL} =~ '^en' ]];then

        DST[((++${#DST[*]}))]="${TCAR_SCRIPT_LANG_LL}"

    else

        DST[((++${#DST[*]}))]=""

    fi

    # Define repository translation markers.

    SRC[((++${#SRC[*]}))]='=(REPO_TLDIR|REPO_HOME|TCAR_BASEDIR)='

    DST[((++${#DST[*]}))]="${TCAR_BASEDIR}"

    # Do replacement of nested translation markers.

    while [[ ${COUNTDST} -lt ${#DST[@]} ]];do

        # Verify existence of translation markers. If there is no

        # translation marker on replacement, continue with the next

        # one in the list.

        if [[ ! ${DST[${COUNTDST}]} =~ '=[A-Z_]+=' ]];then

            # Increment destination counter.

            COUNTDST=$((${COUNTDST} + 1))

            # The current replacement value doesn't have translation

            # marker inside, so skip it and evaluate the next

            # replacement value in the list.

            continue

        fi

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

            # Update replacements.

            DST[${COUNTDST}]=$(echo ${DST[${COUNTDST}]} \

                | sed -r "s!${SRC[${COUNTSRC}]}!${DST[${COUNTSRC}]}!g")

            # Increment source counter.

            COUNTSRC=$((${COUNTSRC} + 1))

        done

        # Reset source counter

        COUNTSRC=0

        # Increment destination counter.

        COUNTDST=$((${COUNTDST} + 1))

    done

    # Apply replacements for translation markers.

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

        # Use sed to replace translation markers inside the design

        # model instance.

        sed -r -i "s!${SRC[${COUNT}]}!${DST[${COUNT}]}!g" ${LOCATION}

        # Increment counter.

        COUNT=$((${COUNT} + 1))

    done

    # Remove escaped character from translation markers. This is one

    # of the reasons why translation marker should be expanded in

    # source files instances not the source files themselves.

    # Escaping translation markers provides a way of talking about

    # them without expanding them.

    sed -r -i 's/(=)\\([A-Z_]+=)/\1\2/g' ${LOCATION}

    # Unset specific translation markers and specific replacement

    # variables in order to clean them up. Otherwise, undesired values

    # may remain from one file to another.

    unset SRC

    unset DST

}