#!/bin/bash

#

# cli_printCopyrightInfo.sh -- This function standardizes the

# copyright information used by centos-art.sh script.

#

# As far as I understand, the copyright exists to make people create

# more.  The copyright gives creators the legal power over their

# creations and so the freedom to distribute them under the ethical

# terms the creator considers better.  At this moment I don't feel

# very confident about this legal affairs and their legal

# implications, but I need to decide what copyright information the

# centos-art.sh script will print out. So, in that sake, I'll assume

# the same copyright information used by The CentOS Wiki

# (http://wiki.centos.org/) as reference.

#

# Copyright (C) 2009, 2010, 2011 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.

#

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

# $Id$

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

function cli_printCopyrightInfo {

    case "$1" in

        --license )

            # Print out the name of the license used by to release the

            # content produced by centos-art.sh script, inside CentOS

            # Artwork Repository.

            echo "`gettext "Creative Common Attribution-ShareAlike 3.0 License"`"

            ;;

        --license-url )

            # Print out the url of the license used by to release the

            # content produced by centos-art.sh script, inside CentOS

            # Artwork Repository.

            cli_printUrl --cc-sharealike

            ;;

        --copyright-year-first )

            # The former year when I (as part of The CentOS Project)

            # started to consolidate The CentOS Project Corporate

            # Visual Identity through the CentOS Artwork Repository.

            echo "${COPYRIGHT_YEAR_FIRST}"

            ;;

        --copyright-year|--copyright-year-last )

            # The last year when The CentOS Project stopped working in

            # its Corporate Visual Identity through the CentOS Artwork

            # Repository. That is something that I hope does never

            # happen, so assume the current year as last working year.

            date +%Y

            ;;

        --copyright-year-range )

            local FIRST_YEAR=$(cli_printCopyrightInfo '--copyright-year-first')

            local LAST_YEAR=$(cli_printCopyrightInfo '--copyright-year-last')

            echo "${FIRST_YEAR}-${LAST_YEAR}"

            ;;

        --copyright-year-list )

            local FIRST_YEAR=$(cli_printCopyrightInfo '--copyright-year-first')

            local LAST_YEAR=$(cli_printCopyrightInfo '--copyright-year-last')

            # Define full copyright year string based on first and

            # last year.

            local FULL_YEAR=$(\

                while [[ ${FIRST_YEAR} -le ${LAST_YEAR} ]];do

                    echo -n "${FIRST_YEAR}, "

                    FIRST_YEAR=$(($FIRST_YEAR + 1))

                done)

            # Prepare full copyright year string and print it out. 

            echo "${FULL_YEAR}" | sed 's!, *$!!'

            ;;

        --copyright-holder )

            # Output default copyright holder.

            echo ${COPYRIGHT_HOLDER}

            ;;

        --copyright-holder-predicate )

            local HOLDER=$(cli_printCopyrightInfo '--copyright-holder')

            echo "${HOLDER}. `gettext "All rights reserved."`"

            ;;

        --copyright )

            local YEAR=$(cli_printCopyrightInfo '--copyright-year-last')

            local HOLDER=$(cli_printCopyrightInfo '--copyright-holder')

            echo "Copyright © ${YEAR} ${HOLDER}"

            ;;

    esac

}