#!/bin/sh

CONTAINER_IMAGE="registry.labs.0x.no/env"
CONTAINER_HOME="/home/ambrose"

OPTIND=1

workdir=""
delete=""
name=""
ports="\n\t"
volumes=""

show_help() {
cat << EOF
Usage: ${0##*/} [-hxw] [-n NAME] [-p PORT]... [-v LIST]... [CMD]...
Starts an env Docker container. If CMD is specified, starts CMD 
instead of a shell.

   -h       display this help and exit
   -x       delete Docker container after exit. will loose data
   -w       forward \$PWD into $CONTAINER_HOME/src, and start there
   -n NAME  give container a NAME
   -p PORT  forward host PORT to container PORT
   -v LIST  mount volume LIST. specify as LOCAL:MOUNT

EOF
}

while getopts "hxwn:p:v:" opt; do
	case "$opt" in
	x)
		delete="--rm "
		;;
	w)
		workdir="\n\t--workdir $CONTAINER_HOME/src "
		volumes="$volumes\n\t-v '$PWD':$CONTAINER_HOME/src "
		;;
	n)
		name="--name $OPTARG "
		;;
	p)
		ports="$ports-p $OPTARG:$OPTARG "
		;;
	v)
		volumes="$volumes\n\t-v '$OPTARG' "
		;;
	h)
		show_help
		exit 0
		;;
	:)
		echo "Option -$OPTARG requires an argument." >&2
		show_help
		exit 1
		;;
	\?)
		echo "Invalid option: -$OPTARG" >&2
		show_help
		exit 1
		;;
	esac
done

shift $((OPTIND-1))
[ "$1" = "--" ] && shift

if [ "$ports" = "\n\t" ]; then
	ports=""
fi

docker pull $CONTAINER_IMAGE

cmd="\n\
docker run -it $delete$name$ports$workdir$volumes\n\
	-v $HOME/.ssh:$CONTAINER_HOME/.ssh \n\
	$CONTAINER_IMAGE \n\
	$@\
"

echo
echo "Running: $cmd"

bash -c "`echo $cmd | tr -d '\n'`" # Ugh...