;;; -*- Mode: Lisp;  show-trailing-whitespace: t; Base: 10; indent-tabs: nil; Syntax: ANSI-Common-Lisp; Package: TAG; -*-
;;; Copyright (c) 2013, Mark VandenBrink. All rights reserved.
(in-package #:tag)

;;;
;;; From Practical Common Lisp be Peter Seibel
;;;
(defparameter *id3-v1-genres*
  #(
    ;; These are the official ID3v1 genres.
    "Blues" "Classic Rock" "Country" "Dance" "Disco" "Funk" "Grunge"
    "Hip-Hop" "Jazz" "Metal" "New Age" "Oldies" "Other" "Pop" "R&B" "Rap"
    "Reggae" "Rock" "Techno" "Industrial" "Alternative" "Ska"
    "Death Metal" "Pranks" "Soundtrack" "Euro-Techno" "Ambient"
    "Trip-Hop" "Vocal" "Jazz+Funk" "Fusion" "Trance" "Classical"
    "Instrumental" "Acid" "House" "Game" "Sound Clip" "Gospel" "Noise"
    "AlternRock" "Bass" "Soul" "Punk" "Space" "Meditative"
    "Instrumental Pop" "Instrumental Rock" "Ethnic" "Gothic" "Darkwave"
    "Techno-Industrial" "Electronic" "Pop-Folk" "Eurodance" "Dream"
    "Southern Rock" "Comedy" "Cult" "Gangsta" "Top 40" "Christian Rap"
    "Pop/Funk" "Jungle" "Native American" "Cabaret" "New Wave"
    "Psychadelic" "Rave" "Showtunes" "Trailer" "Lo-Fi" "Tribal"
    "Acid Punk" "Acid Jazz" "Polka" "Retro" "Musical" "Rock & Roll"
    "Hard Rock"

    ;; These were made up by the authors of Winamp but backported into
    ;; the ID3 spec.
    "Folk" "Folk-Rock" "National Folk" "Swing" "Fast Fusion"
    "Bebob" "Latin" "Revival" "Celtic" "Bluegrass" "Avantgarde"
    "Gothic Rock" "Progressive Rock" "Psychedelic Rock" "Symphonic Rock"
    "Slow Rock" "Big Band" "Chorus" "Easy Listening" "Acoustic" "Humour"
    "Speech" "Chanson" "Opera" "Chamber Music" "Sonata" "Symphony"
    "Booty Bass" "Primus" "Porn Groove" "Satire" "Slow Jam" "Club"
    "Tango" "Samba" "Folklore" "Ballad" "Power Ballad" "Rhythmic Soul"
    "Freestyle" "Duet" "Punk Rock" "Drum Solo" "A capella" "Euro-House"
    "Dance Hall"

    ;; These were also invented by the Winamp folks but ignored by the
    ;; ID3 authors.
    "Goa" "Drum & Bass" "Club-House" "Hardcore" "Terror" "Indie"
    "BritPop" "Negerpunk" "Polsk Punk" "Beat" "Christian Gangsta Rap"
    "Heavy Metal" "Black Metal" "Crossover" "Contemporary Christian"
    "Christian Rock" "Merengue" "Salsa" "Thrash Metal" "Anime" "Jpop"
    "Synthpop"))


(defmacro safe-aref (arry index)
  `(handler-case (aref ,arry ,index)
	 (condition (c)
	   (declare (ignore c))
	   "N/A")))

(defmethod get-genre-text ((genre string))
  (safe-aref *id3-v1-genres* (parse-integer genre :start 1 :junk-allowed t)))

(defmethod get-genre-text ((genre integer))
  (safe-aref *id3-v1-genres* (- genre 1)))