#!/bin/sh
#
# Switch between different audio outputs
#

set -eu

BG=true

while getopts "f" OPTION; do
	case "$OPTION" in
	f)
		BG=false
		;;
	esac
done
shift $(($OPTIND - 1))

MODE="$1"

if $BG; then
	"$0" -f "$1" &
	exit 0
fi

# Both alsaloop and tx have poor support for daemon modes.
# Save our PID and then exec ourselves into the process.

PIDFILE="/tmp/scc.$USER"

is_up()
{
	ps -p "$1" >& /dev/null
}

if [ -f "$PIDFILE" ]; then
	PID=`cat "$PIDFILE"`

	if is_up $PID; then
		kill $PID
		sleep 0.05

		while is_up $PID; do
			sleep 1
		done
	fi
fi

echo $$  > "$PIDFILE"

case "$MODE" in
none)
	;;

local)
	exec alsaloop -C hubcap -P hw:PCH
	;;

*)
	exec tx -d hubcap -m 2 -h "$MODE"
	;;

esac