#!/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 {

    # Define short options.

    local ARGSL=''

    # Define long options.

    local ARGSL='license,license-url,coyright,copyright-year,copyright-year-last,copyright-year-first,copyright-year-list,copyright-year-range,copyright-holder'

    # Initialize arguments with an empty value and set it as local

    # variable to this function scope.

    local ARGUMENTS=''

    # Redefine ARGUMENTS variable using current positional parameters. 

    cli_doParseArgumentsReDef "$@"

    # Redefine ARGUMENTS variable using getopt output.

    cli_doParseArguments

    # Redefine positional parameters using ARGUMENTS variable.

    eval set -- "$ARGUMENTS"

    # Look for options passed through positional parameters.

    while true; do

        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 "Creative Common Attribution-ShareAlike 3.0"

                shift 2

                break

                ;;

            --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

                shift 2

                break

                ;;

            --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 '2009'

                shift 2

                break

                ;;

            --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

                shift 2

                break

                ;;

            --copyright-year-range )

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

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

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

                shift 2

                break

                ;;

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

                shift 2

                break

                ;;

            --copyright-holder )

                # Output default copyright holder.

                echo "The CentOS Project"

                shift 2

                break

                ;;

            --copyright )

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

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

                echo "Copyright © $YEAR $HOLDER"

                shift 2

                break

                ;;

            -- )

                cli_printMessage "`gettext "At least one option is required."`" --as-error-line

                shift 1

                break

                ;;

        esac

    done

}