#!/bin/bash

STATE_FILE="/tmp/pulse-rtp-modules"
NULL_SINK_NAME="RetroPie"
SERVER_IP="192.168.1.32"

enable() {
	NULL_SINK_MODULE=$(pactl load-module module-null-sink sink_name=rtp sink_properties="device.description=$NULL_SINK_NAME")
	RTP_MODULE=$(pactl load-module module-rtp-send source=rtp.monitor destination_ip="$SERVER_IP")
	DEFAULT_SINK=$(pactl get-default-sink)

	echo "$NULL_SINK_MODULE","$RTP_MODULE","$DEFAULT_SINK" >"$STATE_FILE"
	pactl set-default-sink rtp
}

check() {
	test -f "$STATE_FILE"
}

get_state_value() {
	cut -f "$1" -d "," <<<"$2"
}

disable() {
	MODULES=$(cat "$STATE_FILE")
	pactl unload-module "$(get_state_value 2 "$MODULES")"
	pactl unload-module "$(get_state_value 1 "$MODULES")"
	pactl set-default-sink "$(get_state_value 3 "$MODULES")"
	rm "$STATE_FILE"
}

toggle() {
	if check; then disable; else enable; fi
}

main() {
	toggle
}

main