#!/bin/sh

# Send the header so that i3bar knows we want to use JSON:
echo '{"version":1}'

# Begin the endless array.
echo '['

# We send an empty first array of blocks to make the loop simpler:
echo '[],'

cd $(dirname $0)

POTENTIAL_MPD_HOSTS="cubietruck mpid music.bingo localhost"

find_mpd() {
	for host in $POTENTIAL_MPD_HOSTS
	do
		ping -c 1 $host >/dev/null 2>&1
		if [ $? -eq 0 ]; then
			NEW_HOST="$host"
			break
		fi
	done
}

find_mpd
export MPD_HOST="$NEW_HOST"

while true
do
	stdbuf -o L conky -c "conkyrc_$HOSTNAME" | stdbuf -i 0 -o 0 sed -f conky_bar.sed &
	CHILD_PID=$!

	NEW_HOST=$MPD_HOST
	until [ "$NEW_HOST" != "$MPD_HOST" ]
	do
		sleep 300

		find_mpd
	done

	kill $CHILD_PID >/dev/null 2>&1
	sleep 3

	export MPD_HOST="$NEW_HOST"
done