#!/bin/sh
BACKS="/usr/share/backgrounds"
# Set background
if [ -n "$DISPLAY" ]; then
	# Only current one
	feh --randomize --no-fehbg --bg-center "$BACKS"
else
	# All instances
	for socket in $(find /run/user/$(id -u)/i3 /tmp/i3-$(id -un).* -name ipc-socket\* 2>/dev/null); do
		i3-msg -s $socket "exec feh --randomize --no-fehbg --bg-center '$BACKS'"
	done
fi
# Set cron
if ! crontab -l 2>/dev/null | grep -q i3background; then
	TCRN="$(mktemp)"
	crontab -l 2>/dev/null > "$TCRN"
	echo "* * * * * i3background" >> "$TCRN"
	crontab "$TCRN"
	rm "$TCRN"
fi