#!/bin/bash

# --------------------------------------------------------------------#
# mp3rm - downloads rm files, converts to mp3, and adds to itunes     #
# requires mplayerosx, LAME, and correctly linked realmedia codecs    #
# as described in the README.                                         # 
# --------------------------------------------------------------------#

# USER VARIABLES

# hard drive name.
HD_NAME="Macintosh HD"
# Location of mplayer.
MPLAYER="/usr/local/bin"
# Location of LAME.
LAME="/sw/bin"
 
# --------------------------------------------------------------------#
#  No need to modify past here unless you know what you are doing.    #
# --------------------------------------------------------------------#

# help

if [ -z $1 ]
 then
 echo "use: mp3rm <url to rm file> [title] [artist] [album]"
 echo "     if title, artist, album not set - title will be set to filename"
 echo
 echo "if url is a ram file, the script will parse and display it, and ask for the url to the rm file"
 exit
fi

# open .ram files

TEST=`echo $1 | awk '/ram$/'`
if [ $TEST ]
 then
 echo "try to find the .rm url in here:"
 curl -s "$1"
 echo
 exit
fi

# get file

NAME=`echo $1 | sed -e 's/.*\///' -e 's/\.rm$//'`
echo "downloading $NAME.rm"
/usr/bin/curl "$1" -o "$NAME.rm"
echo "finished downloading $NAME.rm"

# check if file is valid

if [ ! -e "$NAME.rm" ]
 then
 echo "file doesn't exist, check again, aborting"
 exit
fi

FNAME="$NAME.rm"
RMSIZE=`ls -s $FNAME | awk '{print $1}'`
if (( "$RMSIZE" < 1000 ))
 then
 echo -e "file too small, aborting\n"
 mv $FNAME ~/.Trash
 exit
fi

# converts .rm to .wav

echo "converting $NAME.rm to $NAME.wav"
$MPLAYER/mplayer "$NAME".rm -ao pcm:file="$NAME".wav -vc dummy -vo null

# converts .wav to .mp3

echo "converting $NAME.wav to $NAME.mp3"
if [ $2 ]
 then
 $LAME/lame -f -b 32 --tt "$2" --ta "$3" --tl "$4" "$NAME.wav" "$NAME.mp3"
else
 $LAME/lame -f -b 32 --tt "$NAME" "$NAME.wav" "$NAME.mp3"
fi

# import into iTunes

FILE_LOC=`echo "$HD_NAME/$PWD/" | sed -e 's/\//:/g'`
echo "importing $NAME.mp3 into iTunes"
osascript -e 'tell application "iTunes"' -e 'set this_track to "'"$FILE_LOC"''$NAME'.mp3"' -e 'add this_track' -e 'end tell'

# cleanup 

echo "moving $NAME.rm, $NAME.wav, and $NAME.mp3 to trash"
mv "$NAME.rm" ~/.Trash
mv "$NAME.wav" ~/.Trash
mv "$NAME.mp3" ~/.Trash
echo "done!"