#!/usr/bin/env ruby
#
# Place this in your $PROJECT/.git/hooks directory
# File should be named 'commit-msg'
# Ensure you have dbus bindings for ruby installed
#
#
# Limitations: 
#  * Only works for Amarok so far, as that's what I use.
#  * If your songs are tagged poorly, your commit message will be also.
#
require 'dbus'

def song
  amarok_sbus = DBus::SessionBus.instance
  begin
    dbus = amarok_sbus.service("org.kde.amarok")
    player = dbus.object("/Player")
    player.introspect
  rescue DBus::Error
    # "Music player not opened."
    return ""
  end
  player.default_iface = "org.freedesktop.MediaPlayer"
  resp = ""
  player.GetMetadata.each do |hash|
    begin
      resp = "Artist: #{hash['artist'] }\n"
      resp << "Song: #{hash['title']}\n"
      resp << "Album: #{hash['album']}\n"
    rescue
      resp = "No song playing."
    end
  end
  return resp.to_s
end

message_file = ARGV[0]
message = File.read(message_file)
message.strip!
mesg = "\n\n\n" + song

File.open(message_file, 'a') do |f| 
  f.write(mesg)
end