#!/usr/bin/env bash
#
# Read volume status in FreeBSD
set -euo pipefail
IFS=$'\n\t'
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

SLEEP_INTERVAL=${SLEEP_INTERVAL:-30}

while true; do
    current_vol_mixer=$(mixer -S vol)
    vol_left=$(cut -d ':' -f 2 <<<"$current_vol_mixer")
    vol_right=$(cut -d ':' -f 3 <<<"$current_vol_mixer")
    avg_vol=$(((vol_left + vol_right) / 2))
    tooltip="<tt>$(mixer)</tt>"
    class=""
    icon=""

    if [ $avg_vol -eq 0 ]; then
        icon="🔇"
    elif [ $avg_vol -le 50 ]; then
        icon="🔉"
    else
        icon="🔊"
    fi

    jq --unbuffered --compact-output <<EOF
{
"text":"${avg_vol}% ${icon}",
"tooltip":"${tooltip//$'\n'/\\n}",
"percentage":${avg_vol},
"class":"${class}"
}
EOF
    sleep $SLEEP_INTERVAL
done