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

import re

import sickbeard
import generic
from sickbeard.common import Quality
from sickbeard import logger
from sickbeard import tvcache
from sickbeard import show_name_helpers
from sickbeard.common import Overview 
from sickbeard.exceptions import ex
from sickbeard import clients
from lib import requests
from bs4 import BeautifulSoup
from lib.unidecode import unidecode

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.cache = IPTorrentsCache(self)
        
        self.url = self.urls['base_url']
        
        self.session = None

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

    def isEnabled(self):
        return sickbeard.IPTORRENTS
        
    def imageName(self):
        return 'iptorrents.png'
    
    def getQuality(self, item):
        
        quality = Quality.sceneQuality(item[0])
        return quality    

    def _doLogin(self):

        login_params = {'username': sickbeard.IPTORRENTS_USERNAME,
                        'password': sickbeard.IPTORRENTS_PASSWORD,
                        'login': 'submit',
                        }
        
        self.session = requests.Session()
        
        try:
            response = self.session.post(self.urls['login'], data=login_params, timeout=30)
        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, show, season=None):

        search_string = {'Episode': []}
    
        if not show:
            return []

        seasonEp = show.getAllEpisodes(season)

        wantedEp = [x for x in seasonEp if show.getOverview(x.status) in (Overview.WANTED, Overview.QUAL)]          

        # If Every episode in Season is a wanted Episode then search for Season first
        if wantedEp == seasonEp and not show.air_by_date:
            search_string = {'Season': [], 'Episode': []}
            for show_name in set(show_name_helpers.allPossibleShowNames(show)):
                ep_string = show_name +' S%02d' % int(season) #1) ShowName SXX   
                search_string['Season'].append(ep_string)
                      
        # Building the search string with the episodes we need         
        for ep_obj in wantedEp:
            search_string['Episode'] += self._get_episode_search_strings(ep_obj)[0]['Episode']
        
        # If no Episode is needed then return an empty list
        if not search_string['Episode']:
            return []
        
        return [search_string]

    def _get_episode_search_strings(self, ep_obj):
       
        search_string = {'Episode': []}
       
        if not ep_obj:
            return []
        
        if ep_obj.show.air_by_date:
            for show_name in set(show_name_helpers.allPossibleShowNames(ep_obj.show)):
                ep_string = show_name_helpers.sanitizeSceneName(show_name) +' '+ str(ep_obj.airdate)
                search_string['Episode'].append(ep_string)
        else:
            for show_name in set(show_name_helpers.allPossibleShowNames(ep_obj.show)):
                ep_string = show_name_helpers.sanitizeSceneName(show_name) +' '+ \
                sickbeard.config.naming_ep_type[2] % {'seasonnumber': ep_obj.season, 'episodenumber': ep_obj.episode}

                search_string['Episode'].append(ep_string)
    
        return [search_string]

    def _doSearch(self, search_params):
    
        results = []
        items = {'Season': [], 'Episode': []}

        freeleech = '&free=on' if sickbeard.IPTORRENTS_FREELEECH else ''
        
        if not self._doLogin():
            return []        
        
        for mode in search_params.keys():
            for search_string in search_params[mode]:

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

                logger.log(u"" + self.name + " search page URL: " + searchURL, logger.DEBUG)
        
                data = self.getURL(searchURL)
                if not data:
                    continue
                
                try:
                    html = BeautifulSoup(data, features=["html5lib", "permissive"])

                    if not html:
                        logger.log(u"Invalid HTML data: " + str(data) , logger.DEBUG)
                        continue
                    
                    if html.find(text='Nothing 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 []
                    
                    if not torrents:
#                        logger.log(u"The data returned from " + self.name + " is incomplete, this result is unusable", logger.DEBUG)
                        continue
                    

                    for result in torrents[1:]:

                        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)

                        # Filter unseeded torrent and torrents with no name/url
                        if torrent_seeders == 0 or 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 + (" Exceptions: "  + str(e) if e else ''), logger.ERROR)

            results += items[mode]  
                
        return results

    def _get_title_and_url(self, item):
        
        title, url = item
        
        if url:
            url = str(url).replace('&amp;','&')

        return (title, url)

    def getURL(self, url, headers=None):

        if not self.session:
            self._doLogin()

        if not headers:
            headers = []

        try:
            response = self.session.get(url)
        except (requests.exceptions.ConnectionError, requests.exceptions.HTTPError), e:
            logger.log(u"Error loading " + self.name + " URL: " + ex(e), logger.ERROR)
            return None

        if response.status_code != 200:
            logger.log(self.name + u" page requested with url " + url +" returned status code is " + str(response.status_code) + ': ' + clients.http_error_code[response.status_code], logger.WARNING)
            return None

        return response.content
       
class IPTorrentsCache(tvcache.TVCache):

    def __init__(self, provider):

        tvcache.TVCache.__init__(self, provider)

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

    def updateCache(self):

        if not self.shouldUpdate():
            return

        freeleech = '&free=on' if sickbeard.IPTORRENTS_FREELEECH else ''
       
        # URL for the last 50 tv-show, or max 150 if adjusted in IPTorrents profile
        cacheURL = self.provider.urls['search'] % (self.provider.categorie, freeleech, "")

        logger.log(u"" + self.provider.name + " cache page URL: " + cacheURL, logger.DEBUG)

        data = self.provider.getURL(cacheURL)

        if not data:
            return []

        try:
            html = BeautifulSoup(data, features=["html5lib", "permissive"])

            torrent_table = html.find('table', attrs = {'class' : 'torrents'})
            torrents = torrent_table.find_all('tr') if torrent_table else []
    
            if not torrents:
#                logger.log(u"The data returned from " + self.provider.name + " is incomplete, this result is unusable", logger.DEBUG)
                return []

            logger.log(u"Clearing " + self.provider.name + " cache and updating with new information")
            self.setLastUpdate()
            self._clearCache()
    
            for result in torrents[1:]:
    
                torrent = result.find_all('td')[1].find('a')
    
                torrent_name = torrent.string
                torrent_download_url = self.provider.urls['base_url'] + (result.find_all('td')[3].find('a'))['href']
                torrent_details_url = self.provider.urls['base_url'] + torrent['href']

                # Filter torrents with no name/url
                if not torrent_name or not torrent_download_url:
                    continue 

                logger.log(u"Adding item to cache: " + torrent_name + " (" + torrent_details_url + ")", logger.DEBUG)
                self._addCacheEntry(torrent_name, torrent_download_url)

        except Exception, e:
            logger.log(u"Failed to parse " + self.provider.name + " cache page URL: " + cacheURL + (" Exceptions: "  + str(e) if e else ''), logger.ERROR)

provider = IPTorrentsProvider()
