#!/bin/sh
#----------------------------------------------------------------------------
# list-groups - list groups
#
# Creation:     2001-11-04 fm
# Last Update:  $Id$
#
# Copyright (c) 2001-@@YEAR@@ the eisfair team, team(at)eisfair(dot)org
#
# 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.
#----------------------------------------------------------------------------

# include eislib
. /var/install/include/eislib

#debug=true

if ${debug:-false}
then
    exec 2>/tmp/$(basename ${0})-trace$$.log
    set -x
    ask_debug=true
    export ask_debug
fi

CHOOSE=/var/install/bin/choose
AWK=/usr/bin/gawk
MKTEMP=/usr/bin/mktemp
RM=/usr/bin/rm
EXPR=/usr/bin/expr

#----------------------------------------------------------------------------
# main
#----------------------------------------------------------------------------
main()
{
    GROUP_TITLE='List groups'
    GROUP_FLAGS='--indent 12 --spread --list'
    GROUP_COLS='10* 7'
    GROUP_ROWS=0
    GROUP_CAPTION_1='--info "Group"'
    GROUP_CAPTION_2='--info "Gid"'
    export GROUP_TITLE
    export GROUP_FLAGS
    export GROUP_COLS
    export GROUP_CAPTION_1
    export GROUP_CAPTION_2

    while read line
    do
        GROUP_ROWS=$(${EXPR} ${GROUP_ROWS} + 1)

        group="$(echo "${line}" | ${AWK} -F: '{ print $1 }')"
        gid="$(echo "${line}" | ${AWK} -F: '{ print $3 }')"

        eval GROUP_${GROUP_ROWS}_1=\"${group}\"
        eval GROUP_${GROUP_ROWS}_2=\"${gid}\"
        export GROUP_${GROUP_ROWS}_1
        export GROUP_${GROUP_ROWS}_2
        export GROUP_ROWS

    done </etc/group

    GROUP_QUESTION='View'
    export GROUP_QUESTION

    _ask_tmpfile=$(${MKTEMP} -t XXXXXXXXXXXXX)
    ${CHOOSE} GROUP 1 > ${_ask_tmpfile}
    rc=${?}
    read answer < ${_ask_tmpfile}
    ${RM} -f ${_ask_tmpfile}

    # if ask break, ask returned 255
    if [ ${rc} = 255 ]
    then
        answer=0
    fi

    unset GROUP_FLAGS
    unset GROUP_CAPTION_1
    unset GROUP_CAPTION_2

    case ${answer} in
    '') exit 0    ;;
    0)  exit 127  ;;
    esac
}

#----------------------------------------------------------------------------
# call function main
#----------------------------------------------------------------------------
main "${@}"

#----------------------------------------------------------------------------
# end
#----------------------------------------------------------------------------