#!/usr/bin/env ruby
# $Id: tracks.rb,v 1.12 2008/05/02 13:05:40 karl Exp $
#
# A program to show CD information

#  Copyright (C) 2006, 2007, 2008 Rocky Bernstein <rocky@gnu.org>
#
#  This program is free software: you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation, either version 3 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program.  If not, see <http://www.gnu.org/licenses/>.

mypath = File.dirname(__FILE__)
if(File::exists?(mypath + "/../lib/cdio.rb"))
  $: << File.dirname(__FILE__) + '/../lib'
  $: << File.dirname(__FILE__) + '/../ext/cdio'
else
  require 'rubygems'
end
require "cdio"

if ARGV.length() > 0
    begin
        d = Cdio::Device.new(@ARGV[1])
    rescue Cdio::IOError
        puts "Problem opening CD-ROM: %s" % @ARGV[1]
        exit(1)
    end
else
    begin
        d = Cdio::Device.new("", Rubycdio::DRIVER_UNKNOWN)
    rescue Cdio::IOError
        puts "Problem finding a CD-ROM"
        exit(1)
    end
end

t = d.first_track()
if not t
    puts "Problem getting first track"
    exit(2)
end

first_track = t.track
num_tracks  = d.num_tracks()
last_track  = first_track+num_tracks-1

begin
    last_session = d.last_session()
    puts "CD-ROM %s has %d track(s) and %d session(s)." % 
    [d.device(), d.num_tracks(), last_session]
rescue Cdio::DriverUnsupportedError:
    puts "CD-ROM %s has %d track(s). " % [d.device(), d.num_tracks()]
end

puts "Track format is %s." %  d.disc_mode()

mcn = d.mcn()
if mcn
    puts "Media Catalog Number: %s" % mcn 
end
    
puts "%3s: %-6s  %s" % ["#", "LSN", "Format"]
for i in first_track .. last_track
    begin 
        t = d.track(i)
        puts "%3d: %06u  %-6s %s"  % [t.track, t.lsn(), t.msf(), t.format()]
    rescue TrackError
    end
end

puts "%3X: %06u  leadout" % [Rubycdio::CDROM_LEADOUT_TRACK, d.disc_last_lsn()]
d.close()