#! /bin/sh
#----------------------------------------------------------------------------
# /var/install/bin/system-base-set-menu-style - set menu style
#
# Creation:     2005-08-06 dv
# Last Update:  $Id$
#
# Copyright (c) 2001-2011 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

# ---------------------------------------------------------------------------
# main
# ---------------------------------------------------------------------------
    # set page titel
    clrhome
    mecho --info "Set eisfair menu style"
    echo
    echo

    # set menu style:executable
    menu_style="Classic text style:/var/install/bin/show-menu
                Curses style:/var/install/bin/show-menu.cui"

    # get current menu executable
    current_menu_exec=`grep "^MENU=" /etc/config.d/setup |
                        sed "s#^MENU=['\"]##; s/['\"].*$//"`

    # show current menu style
    echo -n "Current eisfair menu style: "

    # get the display name from current menu executable
    echo "${menu_style}" |
    while read line
    do
        _menu_exec=`echo ${line} | awk -F: '{ print $2 }'`
        if [ "${_menu_exec}" = "${current_menu_exec}" ]
        then
            _style=`echo ${line} | awk -F: '{ print $1 }'`
            mecho --info "${_style}"
        else
            continue
        fi
    done

    # show available menu styles
    techo --begin '6r 32*'
    echo
    echo
    _idx=1
    echo "${menu_style}" |
    while read line
    do
        _style=`echo ${line} | awk -F: '{ print $1 }'`
        techo --row "${_idx}." "${_style}"
        _idx=`expr ${_idx} + 1`
    done
    echo
    echo
    techo --end
    _ask_tmpfile=$(mktemp -t XXXXXXXXXXXXX)
    /var/install/bin/ask "Select" "" "1-`echo "${menu_style}" |
                wc -l`" "^$=Return" "0=Exit" >${_ask_tmpfile}
    rc=${?}
    style_to_work=`cat ${_ask_tmpfile}`
    rm -f ${_ask_tmpfile}

    if [ ${rc} = 255 ]
    then
        style_to_work=0
    fi

    case "${style_to_work}" in
        "")
            exit 0
        ;;
        0)
            exit 127
        ;;
        *)
            # get the line from '$menu_style' and display '$2'
            selected_menu=`echo "${menu_style}" | awk -F: 'FNR == '${style_to_work}' { print $2 }'`

            if [ "${selected_menu}" != "${current_menu_exec}" ]
            then
                # write in config file
                sed -i "s#^MENU=['\"].*['\"]#MENU='${selected_menu}'#" /etc/config.d/setup

                echo
                mecho --info -n "You need to "
                mecho -n "Exit "
                mecho --info "from the currently running"
                mecho --info "menu to make the changes take effect."
                echo

                _ask_tmpfile=$(mktemp -t XXXXXXXXXXXXX)
                /var/install/bin/ask "Select" "" "^$=Return" "0=Exit" >${_ask_tmpfile}
                rc=${?}
                _my_answer=`cat ${_ask_tmpfile}`
                rm -f ${_ask_tmpfile}

                if [ ${rc} = 255 ]
                then
                    _my_answer=0
                fi

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

exit 0
# ---------------------------------------------------------------------------
# end
#----------------------------------------------------------------------------