#!/bin/bash

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

#

#   tcar_printCopyrightInfo.sh -- This function standardizes the

#   copyright information printed on content produced by tcar.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

#   tcar.sh script will print out when someone request

#   information about it.  So, in that sake, I am using The CentOS

#   Artwork SIG as copyright holder and the GNU Public License,

#   version 2 or any later, for software distribution.

#

#   Written by:

#   * Alain Reguera Delgado <al@centos.org.cu>, 2009-2013

#

# Copyright (C) 2009-2013 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.

#

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

function tcar_printCopyrightInfo {

    case "${1}" in

        --license )

            # Print the license name. 

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

            ;;

        --license-url )

            # Print the url related to license name.

            tcar_printUrl --cc-sharealike

            ;;

        --first-year )

            # The former year when I (as collaborator of The CentOS

            # Project) started to consolidate The CentOS Project

            # Corporate Visual Identity through the CentOS Artwork

            # Repository.

            echo '2009'

            ;;

        --year|--last-year)

            # 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 never happens,

            # so assume the current year as last working year.

            date +%Y

            ;;

        --years-range )

            local FIRST_YEAR=$(tcar_printCopyrightInfo --first-year)

            local LAST_YEAR=$(tcar_printCopyrightInfo --last-year)

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

            ;;

        --years-list )

            local FIRST_YEAR=$(tcar_printCopyrightInfo --first-year)

            local LAST_YEAR=$(tcar_printCopyrightInfo --last-year)

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

            ;;

        --holder )

            # Print tcar.sh script default copyright holder. Be

            # pragmatic about this information, please. The CentOS

            # Project exists to produce The CentOS Distribution, not

            # tcar.sh script. Nevertheless, The CentOS Artwork

            # SIG is an organizational unit of The CentOS Project

            # which is focused on producing The CentOS Project

            # corporate visual identity, by means of The CentOS

            # Artwork Repository.  The tcar.sh script automates

            # frequent tasks inside The CentOS Artwork Repository so,

            # based on these considerations, the copyright holder of

            # the tcar.sh script is "closer" to be The CentOS

            # Artwork SIG than it would be The CentOS Project. These

            # are the logical choosing ideas behind the copyright

            # holder of tcar.sh script.

            echo "The CentOS Artwork SIG"

            ;;

        --holder-predicate )

            local HOLDER=$(tcar_printCopyrightInfo --holder)

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

            ;;

        * )

            local YEAR=$(tcar_printCopyrightInfo --last-year)

            local HOLDER=$(tcar_printCopyrightInfo --holder)

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

            ;;

    esac

}