Class: ItunesCommand

Inherits:
Object
  • Object
show all
Defined in:
lib/itunes_command.rb

Constant Summary collapse

VERSION = 
'1.3'
HELP = 
<<END
  itunes-command

  Commands:

  q                   quit
  h                   show commands
  s <string>          searches for tracks matching <string>
  <track number>      plays a track (assumes you've done a search and got results)
  a                   lists all artists in the library
  v                   show the current volume level
  v <level>           sets the volume level (1-100)
  + <increment>       increases the volume by <increment>; default is 10 steps
  - <increment>       decreases the volume by <increment>; default is 10 steps
  x                   stop
  p                   shows all playlists 
  <playlist number>   shows all the tracks in a playlist
  l                   list all tracks in the queue (which will play tracks in succession)
  n <track number>    put a track in the queue; can be a range, e.g. 3-5
  c                   clear the queue
  g                   start playing tracks in the queue
  k                   skip to next track in queue
END
COMMANDS = 
{ 's' => :search, 
'x' => :stop , 'play' => :play, 'v' => :volume, 'a' => :artists, '+' => :+, '-' => '-',
'p' => :playlists, 'select_playlist' => :select_playlist, 'l' => :show_queue, 'n' => :queue, 
'c' => :clear_queue, 'g' => 'start_queue', 'k' => 'skip'}

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ ItunesCommand

Returns a new instance of ItunesCommand.



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# File 'lib/itunes_command.rb', line 193

def initialize
  @i = ITunes.new
  @playlists = []
  @tracks = []
  @playlist_mode = false
end

Instance Attribute Details

#playlist_mode ⇒ Object

Returns the value of attribute playlist_mode.



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# File 'lib/itunes_command.rb', line 192

def playlist_mode
  @playlist_mode
end

Class Method Details

.run(argv = ARGV) ⇒ Object 



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# File 'lib/itunes_command.rb', line 386

def self.run(argv=ARGV)
  i = ItunesCommand.new
  puts HELP
  loop do
    command = Readline.readline(">> ").chomp
    if command =~ /^q/
      exit
    elsif command =~ /^h/
      puts HELP
      next
    end
    args = command.split(' ')
    if args.first =~ /\d+/
      if i.playlist_mode
        args.unshift 'select_playlist'
      else
        args.unshift 'play'
      end
    end
    method = COMMANDS[args.shift]
    if method.nil?
      puts "Sorry, I don't recognize that command."
      next
    end
    begin
      args.empty? ? i.send(method) : i.send(method, args.join(' '))
    rescue ArgumentError
      puts "Invalid command."
    end
  end

end

Instance Method Details

#+(steps = 10) ⇒ Object 



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# File 'lib/itunes_command.rb', line 257

def +(steps=10)
  @i.soundVolume = @i.soundVolume + steps.to_i
  volume
end

#-(steps = 10) ⇒ Object 



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# File 'lib/itunes_command.rb', line 262

def -(steps=10)
  @i.soundVolume = @i.soundVolume - steps.to_i
  volume
end

#artists ⇒ Object 



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# File 'lib/itunes_command.rb', line 341

def artists
  rows = []
  (@artists=@i.artists).keys.sort_by {|x| x.downcase}.each_with_index  do |k, i|
    rows << ("%s (%s tracks)" % [k, @artists[k]])
  end
  pager(rows)
end

#clear_queue ⇒ Object 



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# File 'lib/itunes_command.rb', line 323

def clear_queue
  @i.clear_queue
  puts "Cleared queue"
end

#pager(rows) ⇒ Object 



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# File 'lib/itunes_command.rb', line 349

def pager(rows)
  out = rows.join("\n")
  IO.popen("less", "w") do |less|
    less.puts out
    less.close_write
  end
end

#parse(method, *args) ⇒ Object 



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# File 'lib/itunes_command.rb', line 200

def parse(method, *args)
  self.send method, args
end

#play(index) ⇒ Object 



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# File 'lib/itunes_command.rb', line 234

def play(index)
  if @tracks.empty?
    puts "No tracks in buffer yet. Try searching."
    return
  end
  track = @tracks[index.to_i]
  puts "Playing '#{track.name}' by #{track.artist} from #{track.album}"
  track.playOnce(1)
end

#playlist(index) ⇒ Object 



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# File 'lib/itunes_command.rb', line 284

def playlist(index)
  @playlists ||= playlists
  puts @playlists[index].name
end

#playlists ⇒ Object 



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# File 'lib/itunes_command.rb', line 267

def playlists
  @playlist_mode = true
  puts "Showing playlists"
  playlists = @i.playlists
  playlists.each_with_index do |p,i|
    puts("%2d %s" % [i, p.name])
  end
end

#print_names(items) ⇒ Object 



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# File 'lib/itunes_command.rb', line 222

def print_names(items)
  items =  Array(items)
  rows = []
  items.each_with_index do |t, i|
    begin
      puts("%2d %s : %s" % [i, t.artist, t.name])
    rescue
    end
  end
  items
end

#queue(index) ⇒ Object 



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# File 'lib/itunes_command.rb', line 289

def queue(index)
  if index =~ /\d+-\d+/
    start = index.split('-').first.to_i 
    last = index.split('-').last.to_i
    Array(start..last).each do |i|
      @i.queue_track(track=@tracks[i])
      puts "Added #{track.name} to the queue"
    end
  else
    @i.queue_track(track=@tracks[index.to_i])
    puts "Added #{track.name} to the queue"
  end
end

#search(string = nil) ⇒ Object 



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# File 'lib/itunes_command.rb', line 204

def search(string=nil)
  unless string
    puts "Please enter a search string"
    return
  end
  @tracks = @i.find_track(string)
  print_names(@tracks)
end

#search_artist(string = nil) ⇒ Object 



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# File 'lib/itunes_command.rb', line 213

def search_artist(string=nil)
  unless string
    puts "Please enter a search string"
    return
  end
  @tracks = @i.find_track(string)
  print_names(@tracks)
end

#select_playlist(index) ⇒ Object 



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# File 'lib/itunes_command.rb', line 276

def select_playlist(index)
  @current_playlist = @i.playlists[index.to_i]
  # show tracks
  @tracks = @current_playlist.tracks
  print_names(@tracks)
  @playlist_mode = false
end

#show_queue ⇒ Object 



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# File 'lib/itunes_command.rb', line 303

def show_queue
  if @i.queue.tracks.empty?
    puts "The queue is empty"
    return
  end
  state = `osascript -e 'tell application "iTunes" to player state as string'`.strip
  if state != 'stopped'
    current_track_index = `osascript -e 'tell application "iTunes" to index of current track as string'`.to_i
  else
    current_track_index = nil
  end
  @i.queue.tracks.each_with_index do |t, i|
    if current_track_index && current_track_index - 1 == i
      puts "%s : %s <--- currently playing" % [t.artist, t.name]
    else
      puts "%s : %s" % [t.artist, t.name]
    end
  end
end

#skip ⇒ Object 



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# File 'lib/itunes_command.rb', line 335

def skip
  @i.nextTrack
  track = @i.currentTrack
  puts "Playing '#{track.name}' by #{track.artist} from #{track.album}"
end

#start_queue ⇒ Object 



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# File 'lib/itunes_command.rb', line 328

def start_queue
  @i.stop
  @i.queue.playOnce(1)
  track = @i.currentTrack
  puts "Playing '#{track.name}' by #{track.artist} from #{track.album}"
end

#stop ⇒ Object 



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# File 'lib/itunes_command.rb', line 244

def stop
  @i.stop
end

#volume(level = nil) ⇒ Object 



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# File 'lib/itunes_command.rb', line 248

def volume(level=nil)
  unless level
    puts "The volume is #{@i.soundVolume} out of 100"
    return
  end
  @i.soundVolume = level
  puts "The volume set to #{@i.soundVolume} out of 100"
end