#!/bin/bash


DEST="/storage/era/music"
EVAL_DIR="Evaluation"

function parse_tag() {
	arg=$1

	for delim in " - " "-" "/"; do 
		s_unset=false
		a_unset=false
		if [ -z "$singer" ] ; then 
			s_unset=true
			singer=${arg%%${delim}*}
		fi
		if [ -z "$album" ]; then
			a_unset=true
			album=${arg#*${delim}}
			# alright, since this is the delimiter we probably don't want more than the
			# first of this element..
			album=${album%%${delim}*}
		fi
		if [ "$singer" != "$arg" ]; then
			# try to strip [2006-blablblbal] stuff
			album=${album%% [*}
			album=${album%%[*}
			
			break # return..
		fi
		$a_unset && unset album 
		$s_unset && unset singer
	done
}

function usage_exit() {
	echo
	echo "Usage: $0 [-c] [-m] [-s singer] [-a album] folder"
	echo "		-c: copy (default)"
	echo "		-m: move"
	echo "		-e: evaluation"
	echo
	exit 1
}

force=false
move=false
evaluation=false

while getopts a:s:fcme arg ; do 
	#echo "$arg" $OPTIND $OPTARG
	case "$arg" in
		s) 
		   singer="$OPTARG"
		   ;;
		a) 
		   album="$OPTARG"
		   ;;
		f)
		   force=true
		   ;;
		m) move=true
	 	   ;;
		c) move=false
		   ;;
		e) evaluation=true
		   ;;
	 	\?) usage_exit ;;
		*) ;;
	esac
done

if [ $# -ne $((OPTIND)) ]; then 
	echo -e "\nPlease specify one album"
	usage_exit
fi

$evaluation && DEST="$DEST/$EVAL_DIR"

shift $((OPTIND-1))

dir=$1
arg=$(basename "$1")
arg=${arg//_/ }
arg=$1 # ... pick one... $1 or basename
#echo "arg: $arg"


parse_tag "$arg"
singer=$(echo "$singer" | tr _ \ )
album=$(echo "$album" | tr _ \ )

echo -n "Artist/Singer: '$singer': "
read tmp
[ -n "$tmp" ] && singer=$tmp
echo -n "        Album: '$album': "
read tmp
[ -n "$tmp" ] && album=$tmp

echo 
$move && echo -n Moving || echo -n Copying 
echo -n " \`$dir' to \`$DEST/$singer/$album', ok (y/N)? "
read ansi

if [ "$ansi" != "y" ]; then
	echo "Okay, bailing out as you request"
	exit 
fi

[ ! -d "$DEST/$singer" ] && echo "Creating dir '$DEST/$singer'" && mkdir "$DEST/$singer"

if $move; then
	mv "$dir" "$DEST/$singer/$album"
else
	cp -R "$dir" "$DEST/$singer/$album"
fi

if [ $? -eq 0 ]; then
	echo Copy/move ok, updating db
	mpc update &>/dev/null & 
else
	echo "Copy/move failed..:"
fi