#!/usr/bin/env bash
LANG="en_US.utf8"
# Outputs have spaces in them, so let's make \n the IFS
IFS=$'\n'

# Make script independent on particular implementation of send client
if command -v notify-send > /dev/null 2>&1; then
    SEND="notify-send"
elif command -v dunstify > /dev/null 2>&1; then
    SEND="dunstify"
else
    SEND="/bin/false"
fi

# An option was passed, so let's check it
if [ "$@" ]
then
    # the output from the selection will be the desciption.  Save that for alerts
    desc="$*"
    # Figure out what the device name is based on the description passed
    device=$(pactl list sinks|grep -C2 -F "Description: $desc"|grep Name|cut -d: -f2|xargs)
    # Try to set the default to the device chosen
    if pactl set-default-sink "$device"
    then
        # if it worked, alert the user
        $SEND -t 2000 -r 2 -u low "Activated: $desc"
    else
        # didn't work, critically alert the user
        $SEND -t 2000 -r 2 -u critical "Error activating $desc"
    fi
else
    echo -en "\x00prompt\x1fSelect Output\n"
    # Get the list of outputs based on the description, which is what makes sense to a human
    # and is what we want to show in the menu
    for x in $(pactl list sinks | grep -ie "description:"|cut -d: -f2|sort)
    do
        # outputs with cut may have spaces, so use empty xargs to remove them, and output that to the rofi list
        echo "$x"|xargs
    done
fi