# -*- coding: utf-8 -*-

# Copyright(C) 2011 Romain Bignon
#
# This file is part of weboob.
#
# weboob is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# weboob 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with weboob. If not, see <http://www.gnu.org/licenses/>.


from cStringIO import StringIO

from weboob.capabilities.radio import ICapRadio, Radio, Stream, Emission
from weboob.capabilities.collection import ICapCollection
from weboob.tools.backend import BaseBackend
from weboob.tools.browser import StandardBrowser
from weboob.tools.parsers import get_parser


__all__ = ['NovaBackend']


class NovaBackend(BaseBackend, ICapRadio, ICapCollection):
    NAME = 'nova'
    MAINTAINER = u'Romain Bignon'
    EMAIL = 'romain@weboob.org'
    VERSION = '0.h'
    DESCRIPTION = u'Nova French radio'
    LICENSE = 'AGPLv3+'
    BROWSER = StandardBrowser

    _RADIOS = {'nova':     (u'Radio Nova',  u'Radio nova',   u'http://broadcast.infomaniak.net:80/radionova-high.mp3'),
              }

    def create_default_browser(self):
        return self.create_browser(parser='json')

    def iter_resources(self, objs, split_path):
        if Radio in objs:
            self._restrict_level(split_path)

            for id in self._RADIOS.iterkeys():
                yield self.get_radio(id)

    def iter_radios_search(self, pattern):
        for radio in self.iter_resources((Radio, ), []):
            if pattern.lower() in radio.title.lower() or pattern.lower() in radio.description.lower():
                yield radio

    def get_radio(self, radio):
        if not isinstance(radio, Radio):
            radio = Radio(radio)

        if not radio.id in self._RADIOS:
            return None

        title, description, url = self._RADIOS[radio.id]
        radio.title = title
        radio.description = description

        artist, title = self.get_current()
        current = Emission(0)
        current.artist = artist
        current.title = title
        radio.current = current

        stream = Stream(0)
        stream.title = u'128kbits/s'
        stream.url = url
        radio.streams = [stream]
        return radio

    def get_current(self):
        doc = self.browser.location('http://www.novaplanet.com/radionova/ontheair?origin=/')
        html = doc['track']['markup']
        parser = get_parser()()
        doc = parser.parse(StringIO(html))
        artist = u' '.join([txt.strip() for txt in doc.xpath('//div[@class="artist"]')[0].itertext()])
        title = u' '.join([txt.strip() for txt in doc.xpath('//div[@class="title"]')[0].itertext()])
        return unicode(artist).strip(), unicode(title).strip()

    def fill_radio(self, radio, fields):
        if 'current' in fields:
            if not radio.current:
                radio.current = Emission(0)
            radio.current.artist, radio.current.title = self.get_current()
        return radio

    OBJECTS = {Radio: fill_radio}