#!/bin/bash

__net_start ()
{
		interfaces="`grep [0-9]=\\" /etc/conf.d/net | grep -v ^# | sed 's~.*_\([A-Za-z]*[0-9]\)=.*~\1~' | sort -u`"
		istart=
		for i in $interfaces; do
			istart="$istart net.$i"
		done
		sudo eselect rc start $istart
}

__net_stop ()
{
		interfaces="`grep [0-9]=\\" /etc/conf.d/net | grep -v ^# | sed 's~.*_\([A-Za-z]*[0-9]\)=.*~\1~' | sort -u`"
		istop=
		for i in $interfaces; do
			istop="$istop net.$i"
		done
		sudo eselect rc stop $istop
}

__net_restart ()
{
		interfaces="`grep [0-9]=\\" /etc/conf.d/net | grep -v ^# | sed 's~.*_\([A-Za-z]*[0-9]\)=.*~\1~' | sort -u`"
		irestart=
		for i in $interfaces; do
			irestart="$irestart net.$i"
		done
		sudo eselect rc restart $irestart
}

Usage ()
{
	echo "Usage:"
	echo "       net \$profile:           selects network \$profile"
	echo "       net new \$base \$profile: creates new \$profile based on \$base"
	echo "       net edit:               edit current active network profile"
	echo "       net edit \$profile:      edit network \$profile"
	echo "       net view:               view current active network profile"
	echo "       net view \$profile:      view network \$profile"
	echo "       net rm \$profile:        removes network \$profile"
	echo "       net restart:            restarts the network"
	echo
	echo "Profiles (*active):"
	active=`readlink /etc/conf.d/net | sed 's~^net\.~~'`
	for f in /etc/conf.d/net.*; do
		fn=`echo $f | sed 's~^/etc/conf.d/net\.~~'`
		[[ "$fn" == "$active" ]] && echo "* $fn" || echo "  $fn"
	done
}

if [[ "$1" == "" ]]; then
	Usage

elif [[ "$1" == "start" ]]; then
	__net_start

elif [[ "$1" == "stop" ]]; then
	__net_stop

elif [[ "$1" == "restart" ]]; then
	sudo eselect rc nscd restart
	__net_restart

elif [[ "$1" == "edit" && "$2" == "" ]]; then
	sudo $EDITOR /etc/conf.d/net

elif [[ "$1" == "edit" && "$2" != "" ]]; then
	sudo $EDITOR /etc/conf.d/net.$2

elif [[ "$1" == "rm" && "$2" != "" ]]; then
	sudo rm -f /etc/conf.d/net.$2

elif [[ "$1" == "view" && "$2" != "" ]]; then
	$PAGER /etc/conf.d/net.$2

elif [[ "$1" == "rm" && "$2" != "" ]]; then
	sudo rm -f /etc/conf.d/net.$2

elif [[ "$1" == "new" && "$2" != "" && "$3" != "" ]]; then
	sudo cp -f /etc/conf.d/net.$2 /etc/conf.d/net.$3 && sudo $EDITOR /etc/conf.d/net.$3
	__net_stop
	sudo rm -f /etc/conf.d/net && sudo ln -s net.$3 /etc/conf.d/net
	sudo eselect rc nscd restart
	__net_restart

else
	if [ -f /etc/conf.d/net.$1 ]; then
		__net_stop
		sudo rm -f /etc/conf.d/net && sudo ln -s net.$1 /etc/conf.d/net
		sudo eselect rc nscd restart
		__net_restart
	else
		Usage
	fi
fi

exit 0