# -*- Mode: python; coding: utf-8; tab-width: 8; indent-tabs-mode: t; -*-
#
# Copyright (C) 2012 He Jian <hejian.he@gmail.com>
#
# 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 rb
import urllib
import re

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

  def search (self, callback, *data):
    artist = re.sub('%20', '+', urllib.quote(self.artist))
    title = re.sub('%20', '+', urllib.quote(self.title))
    url = 'http://j-lyric.net/index.php?kt=%s&ka=%s' % (title, artist)
    loader = rb.Loader()
    loader.get_url (url, self.got_results, callback, *data)

  def got_results (self, result, callback, *data):
    if result is None:
      callback (None, *data)
      return

    m = re.search('<div class=\'title\'><a href=\'(/artist/[^\.]*\.html)\'>', result)
    if m is None:
      callback (None, *data)
      return

    loader = rb.Loader()
    loader.get_url ('http://j-lyric.net' + m.group(1), self.parse_lyrics, callback, *data)
    
  def parse_lyrics (self, result, callback, *data):
    if result is None:
      callback (None, *data)
      return

    lyrics = re.split ('<p id=\'lyricBody\'>', result)[1]
    lyrics = re.sub('<br />', '', lyrics)
    lyrics = self.title + "\n\n" + lyrics
    lyrics = re.split ('</p>', lyrics)[0]
    lyrics += "\n\nLyrics provided by j-lyric.net"

    callback (lyrics, *data)

