#!/bin/bash

SCRIPT=$(basename $0)

usage() {
	echo "Usage: $SCRIPT [--x] [--verbose] [su|sudo] [[{user}]@{host}] [[--] command...]"
}

termwrapper() {
	PRG=$@
	if [ "$V" = 1 ]; then
		echo $PRG
		sleep 4
	fi

	if [ -n "$PRG" ]; then
		x-terminal-emulator -e $PRG &
	else
		x-terminal-emulator &
	fi
}

# Initial setup
SU=''
SUDO=''
X=''
V=''
HOST=''
ssh_opts="-t"

while [ $# -gt 0 ]; do
	case $1 in
		su)		SU=1; SUDO=;;
		sudo)		SUDO=1; SU=;;
		--x|-x|x)	X=1; ssh_opts="$ssh_opts -X";;
		--verbose|-v)	V=1; ssh_opts="$ssh_opts -v";;
		--port|-p)	ssh_opts="$ssh_opts -p $2"; shift;;
		--)		shift; break;;
		-*)		usage; exit 1;;
		@*)		HOST=${1#@};;
		*@*)		HOST=$1;;
		*)		break;;
	esac
	shift
done

# Split program name from its options
if [ $# -gt 0 ]; then
	prg_base=$1
	shift
	prg_opts=$@
fi

# Pause for a moment if verbose
if [ "$V" = 1 ]; then
	prg_opts="$prg_opts; sleep 4"
fi

if [ -z "$prg_base" ]; then
	prg_base='/bin/bash'
fi

prg="$prg_base $prg_opts"
prg_su="echo -n 'Changing to root...: '; su -c \"cd; $prg\""
prg_sudo="sudo -i -- $prg"

case "$HOST" in
    '')
	if [ -n "$SU" ]; then
		termwrapper $prg_su
	elif [ -n "$SUDO" ]; then
		termwrapper $prg_sudo
	else
		termwrapper $prg
	fi
	;;
    *)
	if [ -n "$SU" ]; then
		termwrapper ssh $ssh_opts $HOST $prg_su
	elif [ -n "$SUDO" ]; then
		termwrapper ssh $ssh_opts $HOST $prg_sudo
	else
		termwrapper ssh $ssh_opts $HOST $prg
	fi
	;;
esac