# Author: seedboy
# URL: https://github.com/seedboy
#
# This file is part of SickRage.
#
# SickRage 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.
#
# SickRage 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 SickRage.  If not, see <http://www.gnu.org/licenses/>.

import re
import traceback
import datetime
import urlparse
import sickbeard
import generic
from sickbeard.common import Quality
from sickbeard import logger
from sickbeard import tvcache
from sickbeard import db
from sickbeard import classes
from sickbeard import helpers
from sickbeard import show_name_helpers
from sickbeard.exceptions import ex, AuthException
from sickbeard import clients
from lib import requests
from lib.requests import exceptions
from sickbeard.bs4_parser import BS4Parser
from lib.unidecode import unidecode
from sickbeard.helpers import sanitizeSceneName
from sickbeard.show_name_helpers import allPossibleShowNames


class IPTorrentsProvider(generic.TorrentProvider):
    urls = {'base_url': 'https://www.iptorrents.com',
            'login': 'https://www.iptorrents.com/torrents/',
            'search': 'https://www.iptorrents.com/torrents/?%s%s&q=%s&qf=ti',
    }

    def __init__(self):

        generic.TorrentProvider.__init__(self, "IPTorrents")

        self.supportsBacklog = True

        self.enabled = False
        self.username = None
        self.password = None
        self.ratio = None
        self.freeleech = False

        self.cache = IPTorrentsCache(self)

        self.url = self.urls['base_url']

        self.categorie = 'l73=1&l78=1&l66=1&l65=1&l79=1&l5=1&l4=1'

    def isEnabled(self):
        return self.enabled

    def imageName(self):
        return 'iptorrents.png'

    def getQuality(self, item, anime=False):

        quality = Quality.sceneQuality(item[0], anime)
        return quality

    def _checkAuth(self):

        if not self.username or not self.password:
            raise AuthException("Your authentication credentials for " + self.name + " are missing, check your config.")

        return True

    def _doLogin(self):

        login_params = {'username': self.username,
                        'password': self.password,
                        'login': 'submit',
        }

        try:
            response = self.session.post(self.urls['login'], data=login_params, timeout=30, verify=False)
        except (requests.exceptions.ConnectionError, requests.exceptions.HTTPError), e:
            logger.log(u'Unable to connect to ' + self.name + ' provider: ' + ex(e), logger.ERROR)
            return False

        if re.search('tries left', response.text) \
                or re.search('<title>IPT</title>', response.text) \
                or response.status_code == 401:
            logger.log(u'Invalid username or password for ' + self.name + ', Check your settings!', logger.ERROR)
            return False

        return True

    def _get_season_search_strings(self, ep_obj):

        search_string = {'Season': []}
        for show_name in set(show_name_helpers.allPossibleShowNames(self.show)):
            if ep_obj.show.air_by_date or ep_obj.show.sports:
                ep_string = show_name + ' ' + str(ep_obj.airdate).split('-')[0]
            elif ep_obj.show.anime:
                ep_string = show_name + ' ' + "%d" % ep_obj.scene_absolute_number
            else:
                ep_string = show_name + ' S%02d' % int(ep_obj.scene_season)  #1) showName SXX

            search_string['Season'].append(ep_string)

        return [search_string]

    def _get_episode_search_strings(self, ep_obj, add_string=''):

        search_string = {'Episode': []}

        if not ep_obj:
            return []

        if self.show.air_by_date:
            for show_name in set(allPossibleShowNames(self.show)):
                ep_string = sanitizeSceneName(show_name) + ' ' + \
                            str(ep_obj.airdate).replace('-', '|')
                search_string['Episode'].append(ep_string)
        elif self.show.sports:
            for show_name in set(allPossibleShowNames(self.show)):
                ep_string = sanitizeSceneName(show_name) + ' ' + \
                            str(ep_obj.airdate).replace('-', '|') + '|' + \
                            ep_obj.airdate.strftime('%b')
                search_string['Episode'].append(ep_string)
        elif self.show.anime:
            for show_name in set(show_name_helpers.allPossibleShowNames(self.show)):
                ep_string = sanitizeSceneName(show_name) + ' ' + \
                            "%i" % int(ep_obj.scene_absolute_number)
                search_string['Episode'].append(ep_string)
        else:
            for show_name in set(show_name_helpers.allPossibleShowNames(self.show)):
                ep_string = show_name_helpers.sanitizeSceneName(show_name) + ' ' + \
                            sickbeard.config.naming_ep_type[2] % {'seasonnumber': ep_obj.scene_season,
                                                                  'episodenumber': ep_obj.scene_episode} + ' %s' % add_string

                search_string['Episode'].append(re.sub('\s+', ' ', ep_string))

        return [search_string]

    def _doSearch(self, search_params, search_mode='eponly', epcount=0, age=0):

        results = []
        items = {'Season': [], 'Episode': [], 'RSS': []}

        freeleech = '&free=on' if self.freeleech else ''

        if not self._doLogin():
            return results

        for mode in search_params.keys():
            for search_string in search_params[mode]:
                if isinstance(search_string, unicode):
                    search_string = unidecode(search_string)

                # URL with 50 tv-show results, or max 150 if adjusted in IPTorrents profile
                searchURL = self.urls['search'] % (self.categorie, freeleech, search_string)
                searchURL += ';o=seeders' if mode != 'RSS' else ''

                logger.log(u"" + self.name + " search page URL: " + searchURL, logger.DEBUG)

                data = self.getURL(searchURL)
                if not data:
                    continue

                try:
                    data = re.sub(r'(?im)<button.+?<[\/]button>', '', data, 0)
                    with BS4Parser(data, features=["html5lib", "permissive"]) as html:
                        if not html:
                            logger.log(u"Invalid HTML data: " + str(data), logger.DEBUG)
                            continue

                        if html.find(text='No Torrents Found!'):
                            logger.log(u"No results found for: " + search_string + " (" + searchURL + ")", logger.DEBUG)
                            continue

                        torrent_table = html.find('table', attrs={'class': 'torrents'})
                        torrents = torrent_table.find_all('tr') if torrent_table else []

                        #Continue only if one Release is found
                        if len(torrents) < 2:
                            logger.log(u"The Data returned from " + self.name + " do not contains any torrent",
                                       logger.WARNING)
                            continue

                        for result in torrents[1:]:

                            try:
                                torrent = result.find_all('td')[1].find('a')
                                torrent_name = torrent.string
                                torrent_download_url = self.urls['base_url'] + (result.find_all('td')[3].find('a'))['href']
                                torrent_details_url = self.urls['base_url'] + torrent['href']
                                torrent_seeders = int(result.find('td', attrs={'class': 'ac t_seeders'}).string)
                                ## Not used, perhaps in the future ##
                                #torrent_id = int(torrent['href'].replace('/details.php?id=', ''))
                                #torrent_leechers = int(result.find('td', attrs = {'class' : 'ac t_leechers'}).string)
                            except (AttributeError, TypeError):
                                continue

                            # Filter unseeded torrent and torrents with no name/url
                            if mode != 'RSS' and torrent_seeders == 0:
                                continue

                            if not torrent_name or not torrent_download_url:
                                continue

                            item = torrent_name, torrent_download_url
                            logger.log(u"Found result: " + torrent_name + " (" + torrent_details_url + ")", logger.DEBUG)
                            items[mode].append(item)

                except Exception, e:
                    logger.log(u"Failed parsing " + self.name + " Traceback: " + traceback.format_exc(), logger.ERROR)

            results += items[mode]

        return results

    def _get_title_and_url(self, item):

        title, url = item

        if title:
            title = u'' + title
            title = title.replace(' ', '.')

        if url:
            url = str(url).replace('&amp;', '&')

        return (title, url)

    def findPropers(self, search_date=datetime.datetime.today()):

        results = []

        myDB = db.DBConnection()
        sqlResults = myDB.select(
            'SELECT s.show_name, e.showid, e.season, e.episode, e.status, e.airdate FROM tv_episodes AS e' +
            ' INNER JOIN tv_shows AS s ON (e.showid = s.indexer_id)' +
            ' WHERE e.airdate >= ' + str(search_date.toordinal()) +
            ' AND (e.status IN (' + ','.join([str(x) for x in Quality.DOWNLOADED]) + ')' +
            ' OR (e.status IN (' + ','.join([str(x) for x in Quality.SNATCHED]) + ')))'
        )

        if not sqlResults:
            return []

        for sqlshow in sqlResults:
            self.show = helpers.findCertainShow(sickbeard.showList, int(sqlshow["showid"]))
            if self.show:
                curEp = self.show.getEpisode(int(sqlshow["season"]), int(sqlshow["episode"]))
                searchString = self._get_episode_search_strings(curEp, add_string='PROPER|REPACK')

                for item in self._doSearch(searchString[0]):
                    title, url = self._get_title_and_url(item)
                    results.append(classes.Proper(title, url, datetime.datetime.today(), self.show))

        return results

    def seedRatio(self):
        return self.ratio

class IPTorrentsCache(tvcache.TVCache):
    def __init__(self, provider):

        tvcache.TVCache.__init__(self, provider)

        # Only poll IPTorrents every 10 minutes max
        self.minTime = 10

    def _getRSSData(self):
        search_params = {'RSS': ['']}
        return {'entries': self.provider._doSearch(search_params)}


provider = IPTorrentsProvider()