#!/bin/sh

##  Author:  Parv, parv UNDERSCORE AT yahoo DOT com
##  Version:  0.01  Apr 20 2003
##
##  License:  Free to use as you please w/ proper credit given.
##    use at your own risk.  All responsibility for potential damage,
##    loss, etc. is disclaimed.
##
##  Name:  mvmp3
##
##  Purpose:  To move files w/ artist, song title, and 'mp3' separated by
##    a dot in a directory named after the artist in the current directory.
##
##  Example: Say, you have a file named
##    'ella-fitzgerald.mack-the-knife.mp3'.  To move it to a directory
##    'ella-fitzgerald', just run mvmp3 in the directory that file resides.
##
##  Don't forget to update $MP3 variable - root of all the
##  subdirectories.
##
#  Peculiarities...
#    - This program uses Perl to get the string before first dot.  Replace
#      w/ sed if so desire.
#
#    - file & egrep commands are used to identify a mp3 file


#  home of subdirectories
MP3="${HOME}/audio"

case $1 in
  hind* )
    MP3="$MP3/hindi"
  ;;

  eng* | * )
    MP3="$MP3/english"
  ;;
esac

set --

#  create home if doesn't exist
mkdir -p "$MP3" || \
{ echo "mkdir -p $MP3 failed" >&2; exit 1; }

#  get directory name from the file name
get_dir()
{
  dir=$( echo "$1" | perl -pe 's/^([^.]+).*/$1/;' )
}

#  move files to $MP3/<artist>
for m in *.*.mp3
do
  #  make an attempt to find only the binary/mp3 files
  if { ! file "$m" | egrep -i ' (mp3|data)' >/dev/null 2>&1; }
  then
    echo "$m skipped..."
    continue
  fi

  if { get_dir "$m"; }
  then
    echo "$m --> ${MP3}/${dir}"

    #  if artist directory doesn't exist, create it
    [ ! -d "${MP3}/${dir}" ] && mkdir "${MP3}/${dir}"

    mv "$m" "${MP3}/${dir}"
  fi
done