#!/bin/sh
# SPDX-License-Identifier: Unlicense

cmdjq="$(command -v jq)"

if [ -z "$cmdjq" ]; then
	echo "Missing \"jq\"!"
	exit 1
fi

configfile="config.json"

folder="$($cmdjq -r ".RandomVideo | .folder" $configfile)"
player="$($cmdjq -r ".player" $configfile)"
playerparam="$($cmdjq -r ".playerparam" $configfile)"
pgrepplayer="$($cmdjq -r ".pgrepplayer" $configfile)"

swupgpio="$($cmdjq -r ".swupgpio" $configfile)"

playerfull="$(command -v $player) $playerparam"
swupstat="$($(command -v gpio) read $swupgpio)"

if [ $# -eq 0 ]; then
        echo "Parameter fehlt"
	exit 1
fi

if [ $# -gt 1 ]; then
	echo "Zu viele Parameter"
	exit 1
fi

if [ "$swupstat" -eq 1 ]; then
	exit 1
fi

if [ "buzzer" != "$1" ] && [ "cron" != "$1" ]; then
	echo "Parameter muss \"buzzer\" oder \"cron\" sein"
	exit 1
fi

if pgrep "$pgrepplayer" > /dev/null; then
	if [ "$1" = "buzzer" ]; then
		pkill "$pgrepplayer"
	
	elif [ "$1" = "cron" ]; then
		exit 1

	fi

else 
	$playerfull "$(find "$folder" -maxdepth 1 -type f |sort -R |head -n1)" &

fi