#!/bin/sh
#----------------------------------------------------------------------------
# Copyright (c) 2001-2011 the eisfair team, team@eisfair(dot)org
# usage: edit [--apply|--apply-stopstart] file
#        edit [--apply|--apply-stopstart] package message
#----------------------------------------------------------------------------

# include backup
. /var/install/bin/config_shlib

apply=''
case "$1" in
    --apply|-apply)
        apply='restart'
        shift
    ;;
    --apply-stopstart|-apply-stopstart)
        apply='stopstart'
        shift
    ;;
esac

if [ $# -eq 1 ] ; then
    package=`basename $1`
else
    package="$1"
fi


exitval=0

# edit first package...
current_package=`echo $package | sed -e 's/ .*$//g'`

if [ -f /etc/config.d/$current_package ] ; then
    if ! /var/install/bin/edit-conf.cui --check /etc/config.d/$current_package
    then
        /var/install/bin/ask.cui --err "The configuration of this package can't be opened" 
        exit 1
    fi

    old_umask=`umask`
    umask 077       # do not allow anybody to read anything
                    # config or logfile may contain secret passwords

    # delete old tmpfile first, if exists ;-)
    rm -f /tmp/edit-${current_package}-*

    # create tmpfile name, do not change this name,
    # many programs get the old config settings from it,
    # to compare the value
    tmp_edit_file=/tmp/edit-${current_package}-$$

    # copy to tmpfile
    cp -p /etc/config.d/$current_package ${tmp_edit_file}

    # run editor
    if ! /var/install/bin/edit-conf.cui -l /var/log/edit-conf.log /etc/config.d/$current_package
    then
        cp -p ${tmp_edit_file} /etc/config.d/$current_package 
        rm -f ${tmp_edit_file}
        exit 0
    fi
    # config_shlib has owne handling
    umask $old_umask

    if ! diff ${tmp_edit_file} /etc/config.d/$current_package >/dev/null
    then
        backup_config $current_package ${tmp_edit_file}
    fi
fi

# call apply-script if exists
apply_script()
{
    if [ -f /var/install/config.d/${1}.sh ] ; then
        sh /var/install/config.d/${1}.sh
    else
        return 0
    fi
    rm -f ${tmp_edit_file}
}

# can start package
can_start()
{
    local startvar
    local start
    # read configuration file
    . /etc/config.d/${1}
    # change also '-' to '_', many packages use a '-' in the name,
    # like package-dev and START_PACKAGE-DEV does not work :-(
    startvar=`echo START_${1} | tr 'a-z' 'A-Z' | tr '-' '_'`
    eval start='$'${startvar}
    if [ -n "$start" ] ; then
        test "${start}" = "yes"
    else
        # if the START_* varname not the package name (vsftpd with START_FTP)
        startvar=$(grep "^START_.*" /etc/config.d/${1} |  sed 's/=.*/\1/')
        eval start='$'${startvar}
        test "${start}" = "yes"
    fi
}

if [ -n "$apply" ] ; then
    if [ "$package" = "base" -o "$package" = "environment" ] ; then
        apply_script $package
    else
        if /var/install/bin/ask.cui "Activate configuration now?" ; then
            # activate changes
            for current_package in $package
            do
                if [ -f /etc/init.d/$current_package ] ; then
                    if [ "$apply" = "restart" ] ; then
                        if  apply_script $current_package &&
                            can_start    $current_package
                        then
                            # restart package
                            /sbin/rc-service -i -q $current_package restart
                            /sbin/rc-update -q add $current_package default >/dev/null 2>&1
                        else
                            # stop package
                            /sbin/rc-service -i -q $current_package stop
                            /sbin/rc-update -q del $current_package
                        fi
                    elif [ "$apply" = "stopstart" ] ; then
                        init_script $current_package stop
                        if  apply_script $current_package &&
                            can_start    $current_package
                        then
                            /sbin/rc-service -i -q $current_package start
                            /sbin/rc-update -q add $current_package default >/dev/null 2>&1
                        else
                            /sbin/rc-update -q del $current_package
                        fi
                    fi
                else
                    apply_script "$current_package"
                fi
            done
            sleep 1
        fi
    fi
fi

# do it twice ;-)
rm -f ${tmp_edit_file}

exit 0