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

"""
Copyright(C) 2010  Romain Bignon

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, version 3 of the License.

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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

"""

import re

from weboob.tools.browser import BasePage
from weboob.capabilities.torrent import Torrent


__all__ = ['TorrentsPage']


class TorrentsPage(BasePage):
    TORRENTID_REGEXP = re.compile('torrents\.php\?action=download&id=(\d+)')
    def unit(self, n, u):
        m = {'KB': 1024,
             'MB': 1024*1024,
             'GB': 1024*1024*1024,
             'TB': 1024*1024*1024*1024,
            }
        return float(n.replace(',', '')) * m.get(u, 1)

    def iter_torrents(self):
        table = self.document.getroot().cssselect('table#torrent_table')
        if not table:
            table = self.document.getroot().cssselect('table#browse_torrent_table')
        if table:
            table = table[0]
            current_group = None
            for tr in table.findall('tr'):
                if tr.attrib.get('class', '') == 'group':
                    tds = tr.findall('td')
                    current_group = u''
                    div = tds[-6]
                    if div.getchildren()[0].tag == 'div':
                        div = div.getchildren()[0]
                    for a in div.findall('a'):
                        if not a.text:
                            continue
                        if current_group:
                            current_group += ' - '
                        current_group += a.text
                elif tr.attrib.get('class', '').startswith('group_torrent ') or \
                     tr.attrib.get('class', '').startswith('torrent'):
                    tds = tr.findall('td')

                    title = current_group
                    if len(tds) == 7:
                        # Under a group
                        i = 0
                    elif len(tds) in (8,9):
                        # An alone torrent
                        i = len(tds) - 7
                    else:
                        # Useless title
                        continue

                    if title:
                        title += u' (%s)' % tds[i].find('a').text
                    else:
                        title = tds[i].find('a').text
                    url = tds[i].find('span').find('a').attrib['href']
                    id = self.TORRENTID_REGEXP.match(url)
                    if not id:
                        continue
                    id = id.group(1)
                    size = self.unit(*tds[i+3].text.split())
                    seeders = int(tds[i+5].text)
                    leechers = int(tds[i+6].text)

                    torrent = Torrent(id,
                                      title,
                                      url=url,
                                      size=size,
                                      seeders=seeders,
                                      leechers=leechers)
                    yield torrent