#!/bin/bash

vol=$(amixer get Master | grep "Front\ Left:\ Playback.*%")
v=${vol#*\[}
s=${v#*\[}
v=${v%%\%*}
s=${s%%\]*}

if [[ $v == '0' ]]; then
    s="empty";
    ico="";
elif [[ "$s" == "on" ]]; then
    s="low";
    ico="";
    if [[ $v -gt 35 ]]; then
    s="med";
    ico=""; fi
    if [[ $v -gt 50 ]]; then
    s="high";
    ico=""; fi
    if [[ $v -gt 80 ]]; then
    s="vhigh";
    ico=""; fi
    if [[ $v -eq 100 ]]; then
    s="full";
    ico=""; fi
else
    ico="";
fi

echo "{\"level\":\"$v\",\"status\":\"$s\",\"icon\":\"$ico\"}"