#!/bin/bash
MUSICPATH=$1
TEMPATH=$(mktemp)
TEMPATH2=$(mktemp)

if [ -d $MUSICPATH ];then
	TYPE="directory"
elif [ -f $MUSICPATH ];then
	TYPE="list"
fi

case $TYPE in

	directory)	
		#statements	
		find "$MUSICPATH" -type f > $TEMPATH
		while read musicfile ;  do
			mimetype=$(file -i "$musicfile" | awk -F ':' '{ if ( $2 ~ /audio/ || $2 ~ /video/ ) print "audio" ; else if ($2 ~ /octet-stream/ ) print "check" }')
			if [ "$mimetype" = "audio" ]; then
				echo $musicfile >> $TEMPATH2
			elif [ "$mimetype" = "check" ]; then
				mimetype=$(mimetype $musicfile | awk -F ':' '{if ( $2 ~ /audio/ || $2 ~ /video/) print "audio"}')
				if [ $mimetype = "audio" ]; then
					echo $musicfile >> $TEMPATH2
				fi
			fi
			
		done < $TEMPATH
		echo $(cat $TEMPATH2 | shuf -n 1)
		rm $TEMPATH $TEMPATH2
	;;

	list)	
		if [ -f $MUSICPATH ]; then
			echo $(grep . $MUSICPATH | shuf -n 1 )	| sed -e 's,%,\%,g'

		fi
	;;

	*)

	;;	
	
esac