# -*- Mode: python; coding: utf-8; tab-width: 8; indent-tabs-mode: t; -*-
#
# Copyright (C) 2007 James Livingston
#
# 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 2, or (at your option)
# any later version.
#
# The Rhythmbox authors hereby grant permission for non-GPL compatible
# GStreamer plugins to be used and distributed together with GStreamer
# and Rhythmbox. This permission is above and beyond the permissions granted
# by the GPL license by which Rhythmbox is covered. If you modify this code
# you may extend this exception to your version of the code, but you are not
# obligated to do so. If you do not wish to do so, delete this exception
# statement from your 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, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA.


import urllib
import re
import gobject
import gconf
import rb

from LyricsSites import lyrics_sites

class Parser (object):
	def __init__(self, gconf_keys, artist, title):
		self.title = title
		self.artist = artist

		try:
			self.engines = gconf.client_get_default().get_list(gconf_keys['engines'], gconf.VALUE_STRING)
			if self.engines is None:
				self.engines = []
		except gobject.GError, e:
			print e
			self.engines = []

	def searcher(self, plexer, callback, *data):
		for site in lyrics_sites:
			if site['id'] not in self.engines:
				print site['id'] + " search is disabled"
				continue

			plexer.clear()
			parser = site['class'] (self.artist, self.title)
			print "searching " + site['id'] + " for lyrics"

			parser.search(plexer.send())
			yield None

			_, (lyrics,) = plexer.receive()
			if lyrics is not None:
				callback (lyrics, *data)
				return

		callback (None, *data)

	def get_lyrics(self, callback, *data):
		rb.Coroutine (self.searcher, callback, *data).begin ()


