#!/bin/bash

echo "`basename $0` (c)2006-2017 PaulTT"
echo "  . use option -n|--noprompt to skip request for tracks' titles"
echo "  . add an integer to the cmd line to force a bitrate (96/128/160/192/256/320)"
echo "    (when bitrate is not specified or invalid, will be set to 160 by default)"
echo ""

PTT_PARM=$1
if [ -f audio.cddb ]; then
	DTITLE=`grep --text DTITLE ./audio.cddb | cut -d"=" -f 2`
	PTTTRCKAUTH=`echo $DTITLE | cut -d"/" -f 1`
	PTTTRCKAUTH=`echo ${PTTTRCKAUTH% }`
	PTTTRCKAUTH=`echo ${PTTTRCKAUTH# }`
	PTTTRCKALBUM=`echo $DTITLE | cut -d"/" -f 2`
	PTTTRCKALBUM=`echo ${PTTTRCKALBUM# }`
	PTTTRCKALBUM=`echo ${PTTTRCKALBUM% }`
	DGENRE=`grep --text DGENRE ./audio.cddb | cut -d"=" -f 2`
	DYEAR=`grep --text DYEAR ./audio.cddb | cut -d"=" -f 2`
	echo "Encoding: $PTTTRCKAUTH - $PTTTRCKALBUM"
	echo "   Genre: $DGENRE - Year: $DYEAR"
else
	echo -n "Author: "
	read PTTTRCKAUTH;
	echo -n "Album : "
	read PTTTRCKALBUM;
	echo -n "Year  : "
	read DYEAR;
	echo -n "Genre : "
	read DGENRE;
fi
if [ "x$DYEAR" = "x" ]; then
	DYEAR=0
fi

IFS=$'\n\t' 

if [ -f audio.cdindex ]; then
	PTTTRCKS=`grep --text NumTracks audio.cdindex | cut -f2 -d">" | cut -f1 -d"<"`
fi
if [ "x$PTTTRCKS" = "x" ]; then
	PTTTRCKS=`ls -1 *.cdr | wc -l`
fi

for i in `ls -1 *.cdr` ; do
	if [ -f audio.cddb ]; then
		PTTTRCKNMBR=`echo $i | cut -d"." -f 1`
		PTTTRCKNMBR=`grep --text Tracknumber $PTTTRCKNMBR.inf | cut -d"=" -f 2`
		PTTTRCKNMBR=`echo $(($PTTTRCKNMBR))`
		TN=$(($PTTTRCKNMBR-1))
		PTTTRCKTITLE=`grep --text "TTITLE$TN=" ./audio.cddb | cut -d"=" -f 2`
		echo ""
		echo $i: $PTTTRCKNMBR/$PTTTRCKS - $PTTTRCKTITLE
	else
		PTTTRCKNMBR=`echo $i | cut -d"_" -f 2 | cut -d"." -f 1`
		if [ "$PTT_PARM" = "-n" -o "$PTT_PARM" = "--notitle" -o "$PTT_NOTITLE" = "-n" ]; then
			PTTTRCKTITLE=$i
			shift
			PTT_NOTITLE="-n"
			PTT_PARM=$1
		else
			echo "$i (track#$PTTTRCKNMBR):";
			echo -n "  Title : ";
			read PTTTRCKTITLE;
		fi
	fi
	PTT_BITRATE=160
	case $PTT_PARM in
		96 | 128 | 160 | 192 | 256 | 320)
			PTT_BITRATE=$PTT_PARM
			;;
		*);;
	esac
	echo "  Encoding: $PTTTRCKNMBR. $PTTTRCKTITLE"
	lame -b $PTT_BITRATE --ta "$PTTTRCKAUTH" --tl "$PTTTRCKALBUM" \
		--ty $DYEAR --tg "$DGENRE" --tn $PTTTRCKNMBR/$PTTTRCKS \
		--tt "$PTTTRCKTITLE" --add-id3v2 $i;
	id3v2 -T $PTTTRCKNMBR/$PTTTRCKS $i.mp3
	printf "\a"
done
printf "\a"
sleep 1
printf "\a"
echo "Do you want to delete .inf, .cdr & audio.cd* files? [y/N]"
read reply
case $reply in
	y* | Y*)
		rm -f *cdr *inf audio.cddb audio.cdindex
	;;
	*);;
esac