#
#    Copyright (C) 2009 Anton Khirnov <wyskas@gmail.com>
#
#    Nephilim 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 3 of the License, or
#    (at your option) any later version.
#
#    Nephilim 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 Nephilim.  If not, see <http://www.gnu.org/licenses/>.
#

from PyQt4 import QtGui,QtCore
from PyQt4.QtCore import QVariant

import logging
import socket

from ..plugin import Plugin
import LyricWiki_client

class wgLyrics(QtGui.QWidget):
    txtView     = None  # text-object
    p           = None  # plugin
    def __init__(self, p, parent=None):
        QtGui.QWidget.__init__(self, parent)
        self.p = p
        self.curLyrics = ''

        self.txtView = QtGui.QTextEdit(self)
        self.txtView.setReadOnly(True)

        self.setLayout(QtGui.QVBoxLayout())
        self.layout().setSpacing(0)
        self.layout().setMargin(0)
        self.layout().addWidget(self.txtView)


    def set_lyrics(self, song, lyrics):
        self.txtView.clear()

        if song:
            self.txtView.insertHtml('<b>%s</b>\n<br /><u>%s</u><br />'\
                    '<br />\n\n'%(song.title(), song.artist()))
        else:
            return

        if lyrics:
            self.txtView.insertPlainText(lyrics)
        else:
            self.txtView.insertPlainText('Lyrics not found.')

class Lyrics(Plugin):
    o        = None
    DEFAULTS  = {'sites' : ['lyricwiki'], 'lyricdir' : '$musicdir/$songdir',
                 'lyricname' : '.lyric_mpclient_$artist_$album_$song'}

    def _load(self):
        self.o = wgLyrics(self)
        self.connect(self.mpclient(), QtCore.SIGNAL('song_changed'), self.refresh)
    def _unload(self):
        self.o = None
        self.disconnect(self.mpclient(), QtCore.SIGNAL('song_changed'), self.refresh)
    def getInfo(self):
        return "Show (and fetch) the lyrics of the currently playing song."

    def _get_dock_widget(self):
        return self._create_dock(self.o)

    def refresh(self):
        lyrics = None
        song   = self.mpclient().current_song()
        if not song:
            self.o.set_lyrics(None, None)
            return
        for site in self.settings().value(self.name() + '/sites').toStringList():
            lyrics = eval('self.fetch_%s(song)'%site)
            if lyrics:
                self.o.set_lyrics(song, lyrics)
                return

        self.o.set_lyrics(song, None)

    def fetch_lyricwiki(self, song):
        soap = LyricWiki_client.LyricWikiBindingSOAP("http://lyricwiki.org/server.php")
        req  = LyricWiki_client.getSongRequest()
        req.Artist = song.artist()
        req.Song   = song.title()
        try:
            result     = soap.getSong(req).Return.Lyrics.decode('utf-8').encode('iso8859').decode('utf-8')
        except socket.error, e:
            logging.error('Error downloading lyrics from LyricWiki: %s.'%e)
            return None

        return result if result != 'Not found' else None