#!/bin/bash

# Toggle between HDMI and Analog
# Find out current RUNNING sink
currentSink=$(pactl list short sinks | grep 'RUNNING' | awk '{print$2}')
sink=NULL # Selected sink

# Prefer the sink name from command-line
preferSink=$1

# Toggle between sinks
if [[ $currentSink != *"hdmi"* ]]; then
    sink=$(pactl list short sinks | awk '{print$2}' | grep 'hdmi' | sed -n '1p')
else
    availableSinks=$(pactl list short sinks | awk '{print$2}' | grep 'analog')
    for sink in $availableSinks
    do
	# If preferred sink name is given the first one maching will be selected
	# Empty preferred sink argument will select the first one because
	# empty matches everything
	if [[ $sink == *$preferSink* ]]; then
	    break
	fi
    done
fi

# Exit if there is no sink :(
if [ -z $sink ]; then
    echo "Error! Could not find sink to toggle to!"
    exit -1
fi

# Set outputs
echo "setting default sink to $sink"
pactl set-default-sink "$sink"
pactl list short sink-inputs|while read stream; do
    streamId=$(echo $stream|cut '-d ' -f1)
    echo "moving stream $streamId"
    pactl move-sink-input "$streamId" "$sink"
done