#! /bin/bash
# $Id: mp3riplabel,v 1.13 2007/07/21 18:08:03 friedman Exp $

file-template ()
{
  tmpl_author=`filter "$author"`
  tmpl_album=`filter "$album"`

  for f in "$tmpl_author.$tmpl_album"?"$1."*".mp3" \
           "$file_author.$file_album"?"$1."*".mp3" \
           "$file_author.$tmpl_album"?"$1."*".mp3" \
           "track$1.cdda.mp3" \
           "track_$1.mp3" \
           "$1-"*.mp3 \
           "$1 -"*.mp3 \
           *".$1."*.mp3 \
           *"-$1-"*.mp3 \
           *"_$1_"*.mp3 \
           *" - $1 - "*.mp3
  do
    if [ -f "$f" ]; then
      echo "$f"
      return
    fi
  done
}

acronymize ()
{
  case "$*" in
    *" "* | *-* )
      echo "$*" \
         | sed -e "s/^/ /" \
               -e "s/ *\([^ ]\)[^ ]*/\1/g" \
               -e "y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/"
     ;;
    * ) echo "$*" ;;
  esac
}

filter ()
{
  echo "$*" \
   | sed -e "s/  / /g" \
         -e "s/ $//" \
         -e "s/^(//" \
         -e "s/&/and/g" \
         -e "y/[(_ /----/" \
         -e "s/[]):.,'!?]//g"
}

label ()
{
  track="$1"
  file=`file-template "$1"`
  title="$2"
  comment="${3-$defcomment}"

  touch -r "$file" .stamp

  #mp3info -W "$file"
  #mp3info -t "$title" \
  #        -l "$album" \
  #        -a "$author" \
  #        -c "$comment" \
  #        -y "$year" \
  #        -g "$genre" \
  #  "$file"

  id3v2 -D "$file"

#         --comment "$comment"      \
  id3tag  --artist  "$author"       \
          --album   "$album"        \
          --track   "$track"        \
          --total   "$total_tracks" \
          --song    "$title"        \
          --year    "$year"         \
          --genre   "$genre"        \
    "$file"

  touch -r .stamp "$file"
  rm -f .stamp
}

rename ()
{
  old=`file-template "$1"`
  title="$2"
  comment="${3-$defcomment}"

  #new=`filter "$title" "$comment"`
  #new="$file_author.$file_album.$1.$new.mp3"
  new=`echo $title $comment`
  new="$author - $album - $1 - $new.mp3"

  case "$new" in
    "$old" ) : ;;
    * ) mv -v "$old" "$new" ;;
  esac
}

init ()
{
              ##############################
      author=''
       album=''
  defcomment=' '

  year=
  genre=
  total_tracks=

  # Alternatively, use `acronymize'
  file_author=`filter "$author"`
  file_album=`filter "$album"`
}

doit ()
{
         ##############################   ##############################
  $1 01 "Example Title"                  "Example Comment"
  $1 02 "Example Title"                  "Example Comment"
  $1 03 "Example Title"                  "Example Comment"
  $1 04 "Example Title"                  "Example Comment"
  $1 05 "Example Title"                  "Example Comment"
  $1 06 "Example Title"                  "Example Comment"
  $1 07 "Example Title"                  "Example Comment"
  $1 08 "Example Title"                  "Example Comment"
  $1 09 "Example Title"                  "Example Comment"
  $1 10 "Example Title"                  "Example Comment"
  $1 11 "Example Title"                  "Example Comment"
  $1 12 "Example Title"                  "Example Comment"
  $1 13 "Example Title"                  "Example Comment"
  $1 14 "Example Title"                  "Example Comment"
  $1 15 "Example Title"                  "Example Comment"
  $1 16 "Example Title"                  "Example Comment"
  $1 17 "Example Title"                  "Example Comment"
  $1 18 "Example Title"                  "Example Comment"
  $1 19 "Example Title"                  "Example Comment"
  $1 20 "Example Title"                  "Example Comment"
}

init
doit label
doit rename

# eof