#!/usr/bin/perl -w

use strict;

use DBI;
use File::Find;
use MP3::Info;
use Getopt::Std;

my (%options, $DBH, $STH, $tmp, %mp3s, $artist, $album, $title);

getopts("d:au:p:h", \%options);

if ($options{h}) {
    print <<'eof';
    -d dir:      Root MP3 directory
    -u username: Username for mysql
    -p password: Password for mysql
    -a:          Turn aliasing on
    -h:          This help file
eof
exit;
}

my (@dirs) =      $options{m} || ("Your mp3 dir");
my ($orig_path) = $dirs[0];

$orig_path =~ /(.+?)(\/(.+?)\/)/;
my ($alias) = $2;

my ($user_name) = $options{u} || 'user';
my ($password) =  $options{p} || 'password';
my ($database) =  'DBI:mysql:mp3';

find(\&id3info, @dirs);

sub id3info {
    return unless $File::Find::name =~ /^.+?\.[Mm][Pp]3$/;
    $tmp = get_mp3tag($File::Find::name);
    return unless defined $$tmp{'ARTIST'} && defined $$tmp{'TITLE'};

    $$tmp{'ALBUM'} = "Other" unless defined $$tmp{'ALBUM'};
    $$tmp{'TRACKNUM'} = 0 unless defined $$tmp{'TRACKNUM'};

    unless (exists $mp3s{$$tmp{'ARTIST'}}{$$tmp{'ALBUM'}}{$$tmp{'TITLE'}}) {
        %{$mp3s{$$tmp{'ARTIST'}}{$$tmp{'ALBUM'}}{$$tmp{'TITLE'}}} = (
            'PATH' => $File::Find::name,
            'TRACK' => $$tmp{'TRACKNUM'},
            'TIME' => $$tmp{'TIME'}
        );
    } else {
        if ($mp3s{$$tmp{'ARTIST'}}{$$tmp{'ALBUM'}}{$$tmp{'TITLE'}}{'TIME'} < $$tmp{'TIME'}) {
            %{$mp3s{$$tmp{'ARTIST'}}{$$tmp{'ALBUM'}}{$$tmp{'TITLE'}}} = (
                'PATH' => $File::Find::name,
                'TRACK' => $$tmp{'TRACK'},
                'TIME' => $$tmp{'TIME'}
            );
         }
    }

    if ($options{a}) {
        $mp3s{$$tmp{'ARTIST'}}{$$tmp{'ALBUM'}}{$$tmp{'TITLE'}}{'PATH'} =~ s/^$orig_path(.+)$/$alias$1/;
    }

}

$DBH = DBI->connect ($database, $user_name, $password, { RaiseError => 1 });

$STH = $DBH->prepare (qq{ INSERT mp3s (artist,album,title,track,path) VALUES(?,?,?,?,?)});

foreach $artist (keys %mp3s) {
    foreach $album (keys %{ $mp3s{$artist} }) {
        foreach $title (keys %{ $mp3s{$artist}{$album} }) {

             $STH->execute ($artist, $album, $title, $mp3s{$artist}{$album}{$title}{'TRACK'}, $mp3s{$artist}{$album}{$title}{'PATH'});

        }
    }
}

$STH->finish();

$DBH->disconnect ();