# rb_nowplaying.py - Print now playing status and whatnot
#
# Copyright (C) 2010 Elizabeth Jennifer Myers. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# 1) Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
# 2) Redistributions in binary form must reproduce the above
#    copyright notice, this list of conditions and the following
#    disclaimer in the documentation and/or other materials provided
#    with the distribution.
#
# 3) Neither the name of the author nor the name of the contributors
#    may be used to endorse or promote products derived from this
#    software without specific prior written permission.

# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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np_help_text = "/np - Song currently playing"
prev_help_text = "/prev - Play previous song"
next_help_text = "/next - Play next song"
toggle_help_text = "/toggle - Toggle play/pause"

__module_name__ = "rb_control"
__module_version__ = "0.1"
__module_description__ = "Control rhythmbox using xchat! :P"
 
import xchat 
import dbus
from os import path

def get_dbus_obj():
	try:
		bus = dbus.SessionBus()
	except:
		xchat.prnt("dbus is shitting itself or something.")
		return (None, None)

	try:
		playerobj = bus.get_object("org.gnome.Rhythmbox", "/org/gnome/Rhythmbox/Player")
		shellobj = bus.get_object("org.gnome.Rhythmbox", "/org/gnome/Rhythmbox/Shell")
	except:
		xchat.prnt("I'm not very convinced rhythmbox is even running, dude...")
		return (None, None)

	player = dbus.Interface(playerobj, "org.gnome.Rhythmbox.Player")
	shell = dbus.Interface(shellobj, "org.gnome.Rhythmbox.Shell")

	return (player, shell)

def convert_time(seconds):
	hours = seconds / 3600
	seconds -= 3600 * hours
	minutes = seconds / 60
	seconds -= 60 * minutes

	if hours == 0:
		return "%02d:%02d" % (minutes, seconds)
	else:
		return "%02d:%02d" % (hours, minutes, seconds)

def rb_nowplaying(word, word_eol, userdata):
	# Obtain dbus crud
	player, shell = get_dbus_obj()
	if player == None or shell == None:
		return xchat.EAT_NONE

	# Ascertain the current song playing via dbus
	try:
		nowplaying = shell.getSongProperties(player.getPlayingUri())
	except:
		xchat.command("say I'm not listening to anything.")
		return xchat.EAT_NONE
	
	# Get the various attributes and insert filler where appropriate
	artist = nowplaying['artist']
	if artist == '':
		artist = "Unknown artist"
	
	title = nowplaying['title']
	if title == '':
		title = "Unknown song"
	
	album = nowplaying['album']
	if album == '':
		album = "Unknown album"

	duration = nowplaying['duration']
	if duration != 0:
		duration = convert_time(duration)
	else:
		duration = "?:??"
	
	genre = nowplaying['genre']
	if genre == '':
		genre = "Unknown"
	
	bitrate = nowplaying['bitrate']
	if bitrate == 0:
		bitrate = "Unknown"
	else:
		bitrate = str(bitrate) + "k"

	# Try to obtain the format specifier
	try:
		f = open(path.expanduser('~') + "/.xchat2/rb_format.txt", 'r')
		npformat = f.read().rstrip("\r\n")
		f.close()
	except:
		npformat = "me np: {artist} - {title} (album: {album}) ({duration}) (genre: {genre}) (bitrate: {bitrate})"

	npformat = npformat.format(
			artist = artist,
			title = title,
			album = album,
			duration = duration,
			genre = genre,
			bitrate = bitrate)

	# Bang.
	xchat.command(npformat)

def rb_next(word, word_eol, userdata):
	# Obtain dbus crud
	player, shell = get_dbus_obj()
	if player == None or shell == None:
		return xchat.EAT_NONE

	try:
		player.next()
	except:
		xchat.prnt("There was a problem communicating with rhythmbox (is rhythmbox running?)")

def rb_prev(word, word_eol, userdata):
	# Obtain dbus crud
	player, shell = get_dbus_obj()
	if player == None or shell == None:
		return xchat.EAT_NONE

	try:
		player.previous()
	except:
		xchat.prnt("There was a problem communicating with rhythmbox (is rhythmbox running?)")

def rb_toggle(word, word_eol, userdata):
	# Obtain dbus crud
	player, shell = get_dbus_obj()
	if player == None or shell == None:
		return xchat.EAT_NONE

	try:
		if player.getPlaying():
			self.player.playPause(False)
		else:
			self.player.playPause(True)
	except:
		xchat.prnt("There was a problem communicating with rhythmbox (is rhythmbox running?)")


xchat.hook_command("np", rb_nowplaying, help=np_help_text)
xchat.hook_command("next", rb_next, help=next_help_text)
xchat.hook_command("prev", rb_prev, help=prev_help_text)
xchat.hook_command("toggle", rb_toggle, help=toggle_help_text)
xchat.prnt("Script loaded.")