#!/bin/bash

#

# shell_updateTopComment.sh -- This function replaces top comment

# section inside shell scripts (*.sh) with one of many pre-defined

# templates available. Use this function to maintain shell scripts top

# comments inside repository.

#

# Copyright (C) 2009-2011 Alain Reguera Delgado

# 

# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307

# USA.

# 

# ----------------------------------------------------------------------

# $Id$

# ----------------------------------------------------------------------

function shell_updateCopyright {

    local FILE=''

    local COUNT=0

    local FILES=''

    local INSTANCE=''

    local TEMPLATES=''

    local -a TITLE

    local -a VALUE

    local -a PATTERN

    local -a PATTERN_MSG

    local -a DEFAULT

    local -a MARKER

    # Define absolute path to template file.

    TEMPLATE="${CLI_BASEDIR}/Functions/Shell/Config/tpl_forCopyright.sed"

    # Check template file existence.

    cli_checkFiles $TEMPLATE 'f'

    # Define file name to template instance.

    INSTANCE=$(cli_getTemporalFile $TEMPLATE)

    # Define copyright information.

    TITLE[0]="`gettext "Copyright holder"`"

    TITLE[1]="`gettext "Copyright year"`"

    # Define translation marker. These values are used inside

    # template file.

    MARKER[0]='=COPYRIGHT_HOLDER='

    MARKER[1]='=COPYRIGHT_YEAR='

    # Define pattern. These values are used as regular

    # expression patterns for user's input further verification.

    PATTERN[0]='^([[:alnum:] _-.]+)?$'

    PATTERN[1]='^([[:digit:]]{4})?$'

    # Define pattern message. These values are used as output

    # message when user's input doesn't match the related pattern.

    PATTERN_MSG[0]="`gettext "Try using alphanumeric characters."`"

    PATTERN_MSG[1]="`gettext "Try using numeric characters."`"

    # Define default values.

    DEFAULT[0]="The CentOS Project. `gettext "All rights reserved."`"

    DEFAULT[1]=$(date +%Y)

    # Initialize values using user's input.

    cli_printMessage "`gettext "Enter the information you want to apply:"`"

    while [[ $COUNT -ne ${#TITLE[*]} ]];do

        # Request value.

        cli_printMessage "${TITLE[$COUNT]}" 'AsRequestLine'

        read VALUE[$COUNT]

        # Sanitate values to exclude characters that could

        # introduce possible markup malformations to final SVG files.

        until [[ ${VALUE[$COUNT]} =~ ${PATTERN[$COUNT]} ]];do

            cli_printMessage "${PATTERN_MSG[$COUNT]}"

            cli_printMessage "${TITLE[$COUNT]}" 'AsRequestLine'

            read VALUE[$COUNT]

        done

        # Set default value to empty values. 

        if [[ ${VALUE[$COUNT]} == '' ]];then

            VALUE[$COUNT]=${DEFAULT[$COUNT]}

        fi

        # Increase counter.

        COUNT=$(($COUNT + 1))

    done

    # Create template instance.

    cp $TEMPLATE $INSTANCE

    # Check template instance. We cannot continue if template instance

    # couldn't be created.

    cli_checkFiles $INSTANCE 'f'

    # Reset counter.

    COUNT=0

    while [[ $COUNT -ne ${#TITLE[*]} ]];do

        # Apply translation marker replacement.

        sed -r -i "s!${MARKER[$COUNT]}!${VALUE[$COUNT]}!g" $INSTANCE

        # Increase counter.

        COUNT=$(($COUNT + 1))

    done

    # Define list of files to process

    FILES=$(cli_getFilesList "$ACTIONVAL" "${FLAG_FILTER}.*\.sh")

    # Set action preamble.

    cli_printActionPreamble "${FILES}" '' ''

    # Process list of files.

    for FILE in $FILES;do

        # Output action message.

        cli_printMessage $FILE 'AsUpdatingLine'

        # Apply template instance to file.

        sed -r -i -f $INSTANCE $FILE

    done

    # Remove template instance.

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

        rm ${INSTANCE} 

    fi

}