#!/bin/sh

####
#
# albuminfo.sh [Base directory]
#
# Tim Nichols: 2006
# tnichols@is-design.com
#
# Finds all directories containing mp3 or ogg files, and used id3info or 
# ogginfo get the artist and album names.  It then uses amazon.pl to retrieve 
# album cover art from amazon web services.
#
# This script is independent of file structure except assuming that each album 
# is in it's own directory
# 
# amazon.pl is a script written Paul Stuttard, and uses Amazon Web Services to
# retrieve album cover art.
# It can be found here:  
#   http://www.mail-archive.com/mythtv-users@mythtv.org/msg38848/amazon.pl
#
# This script depends on id3lib, and ogginfo being installed
#  id3lib:        http://id3lib.sourceforge.net/
#  vorbis-tools:  http://www.xiph.org/
#
####


find ${1:-.} . -type f -name \*.mp3 -o -name \*.ogg -exec dirname {} \; | 
    uniq | 
    while read d
do
    if [ -f "$d"/folder_large.jpg ]; then
        echo "$d -- already has album art"
        continue
    fi
    # Get a single track from the list of all tracks in the album directory
    f=$(ls "$d"/*.mp3 "$d"/*.ogg 2>/dev/null| tail -1)
    # Use id3info if it's an mp3, or ogginfo if it's an ogg
    case "$f" in
      *.mp3)
         info=$(id3info "$f")
         artist=`echo "$info" | grep TPE1 | sed 's/^[^:]*: *//'`
         album=`echo "$info" | grep TALB | sed 's/^[^:]*: *//'`
      ;;
      *.ogg)
         info=$(ogginfo "$f")
         artist=`echo "$info" | grep -i 'artist=' | cut -d= -f2`
         album=`echo "$info" | grep -i 'album=' | cut -d= -f2`
      ;;
    esac 
    # If we found both an artist and an album name, then call amazon.pl
    # to retrieve the cover art
    if [ "x$artist" != "x" -a "x$album" != "x" ]; then
        echo "$d -- Artist: $artist; Album: $album"
        amazon.pl "$d" "$artist" "$album"
    else
        echo "$d -- No Info"
    fi
done