# Author: Nic Wolfe <nic@wolfeden.ca>
# URL: http://code.google.com/p/sickbeard/
#
# This file is part of SickGear.
#
# SickGear 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.
#
# SickGear 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 SickGear. If not, see <http://www.gnu.org/licenses/>.
from __future__ import with_statement, division
import datetime
import threading
from math import ceil
import sickbeard
from sickbeard import db, scheduler, helpers
from sickbeard import search_queue
from sickbeard import logger
from sickbeard import ui
from sickbeard.providers.generic import GenericProvider
from sickbeard.search import wanted_episodes
from sickbeard.helpers import find_show_by_id
from sickbeard.sbdatetime import sbdatetime
NORMAL_BACKLOG = 0
LIMITED_BACKLOG = 10
FULL_BACKLOG = 20
FORCED_BACKLOG = 30
class BacklogSearchScheduler(scheduler.Scheduler):
def force_search(self, force_type=NORMAL_BACKLOG):
self.action.forcetype = force_type
self.action.force = True
self.force = True
def next_run(self):
if 1 >= self.action._lastBacklog:
return datetime.date.today()
elif (self.action._lastBacklog + self.action.cycleTime) < datetime.date.today().toordinal():
return datetime.date.today()
else:
return datetime.date.fromordinal(self.action._lastBacklog + self.action.cycleTime)
def next_backlog_timeleft(self):
now = datetime.datetime.now()
torrent_enabled = 0 < len([x for x in sickbeard.providers.sortedProviderList() if x.is_active() and
x.enable_backlog and x.providerType == GenericProvider.TORRENT])
if now > self.action.nextBacklog or self.action.nextCyleTime != self.cycleTime:
nextruntime = now + self.timeLeft()
if not torrent_enabled:
nextpossibleruntime = (datetime.datetime.fromtimestamp(self.action.last_runtime) +
datetime.timedelta(hours=23))
for _ in xrange(5):
if nextruntime > nextpossibleruntime:
self.action.nextBacklog = nextruntime
self.action.nextCyleTime = self.cycleTime
break
nextruntime += self.cycleTime
else:
self.action.nextCyleTime = self.cycleTime
self.action.nextBacklog = nextruntime
return self.action.nextBacklog - now if self.action.nextBacklog > now else datetime.timedelta(seconds=0)
class BacklogSearcher:
def __init__(self):
self._lastBacklog = self._get_last_backlog()
self.cycleTime = sickbeard.BACKLOG_FREQUENCY
self.lock = threading.Lock()
self.amActive = False
self.amPaused = False
self.amWaiting = False
self.forcetype = NORMAL_BACKLOG
self.force = False
self.nextBacklog = datetime.datetime.fromtimestamp(1)
self.nextCyleTime = None
self.currentSearchInfo = None
self._reset_progress_indicator()
@property
def last_runtime(self):
return self._get_last_runtime()
def _reset_progress_indicator(self):
self.percentDone = 0
self.currentSearchInfo = {'title': 'Initializing'}
def get_progress_indicator(self):
if self.amActive:
return ui.ProgressIndicator(self.percentDone, self.currentSearchInfo)
else:
return None
def am_running(self):
logger.log(u'amWaiting: ' + str(self.amWaiting) + ', amActive: ' + str(self.amActive), logger.DEBUG)
return (not self.amWaiting) and self.amActive
def add_backlog_item(self, items, standard_backlog, limited_backlog, forced, torrent_only):
for segments in items:
if len(segments):
for season, segment in segments.items():
self.currentSearchInfo = {'title': segment[0].show.name + ' Season ' + str(season)}
backlog_queue_item = search_queue.BacklogQueueItem(
segment[0].show, segment, standard_backlog=standard_backlog, limited_backlog=limited_backlog,
forced=forced, torrent_only=torrent_only)
sickbeard.searchQueueScheduler.action.add_item(backlog_queue_item)
@staticmethod
def change_backlog_parts(old_count, new_count):
try:
my_db = db.DBConnection('cache.db')
sql_result = my_db.select('SELECT * FROM backlogparts')
if sql_result:
current_parts = len(set(s['part'] for s in sql_result))
parts_count = len(sql_result)
new_part_count = int(ceil(new_count / old_count * current_parts))
parts = int(ceil(parts_count / new_part_count))
cl = ([], [['DELETE FROM backlogparts']])[parts_count > 1]
p = new_count - new_part_count
for i, s in enumerate(sql_result):
if i % parts == 0:
p += 1
cl.append(['INSERT INTO backlogparts (part, indexerid, indexer) VALUES (?,?,?)',
[p, s['indexerid'], s['indexer']]])
if 0 < len(cl):
my_db.mass_action(cl)
except:
pass
def search_backlog(self, which_shows=None, force_type=NORMAL_BACKLOG, force=False):
if self.amActive:
logger.log(u'Backlog is still running, not starting it again', logger.DEBUG)
return
if which_shows:
show_list = which_shows
standard_backlog = False
else:
show_list = sickbeard.showList
standard_backlog = True
now = datetime.datetime.now()
torrent_only = continued_backlog = False
if not force and standard_backlog and (datetime.datetime.now() - datetime.datetime.fromtimestamp(
self._get_last_runtime())) < datetime.timedelta(hours=23):
if [x for x in sickbeard.providers.sortedProviderList() if x.is_active() and x.enable_backlog and
x.providerType == GenericProvider.TORRENT]:
torrent_only = True
else:
logger.log('Last scheduled Backlog run was within the last day, skipping this run.', logger.DEBUG)
return
self._get_last_backlog()
self.amActive = True
self.amPaused = False
cur_date = datetime.date.today().toordinal()
from_date = datetime.date.fromordinal(1)
limited_from_date = datetime.date.today() - datetime.timedelta(days=sickbeard.BACKLOG_DAYS)
limited_backlog = False
if not which_shows and torrent_only:
logger.log(u'Running limited backlog for episodes missed during the last %s day(s)' %
str(sickbeard.BACKLOG_DAYS))
from_date = limited_from_date
limited_backlog = True
runparts = []
if standard_backlog and not torrent_only:
my_db = db.DBConnection('cache.db')
sql_result = my_db.select('SELECT * FROM backlogparts WHERE part in (SELECT MIN(part) FROM backlogparts)')
if sql_result:
sl = []
part_nr = int(sql_result[0]['part'])
for s in sql_result:
show_obj = find_show_by_id(sickbeard.showList, {int(s['indexer']): int(s['indexerid'])})
if show_obj:
sl.append(show_obj)
runparts.append([int(s['indexerid']), int(s['indexer'])])
show_list = sl
continued_backlog = True
my_db.action('DELETE FROM backlogparts WHERE part = ?', [part_nr])
forced = False
if not which_shows and force_type != NORMAL_BACKLOG:
forced = True
wanted_list = []
for curShow in show_list:
if not curShow.paused:
w = wanted_episodes(curShow, from_date, make_dict=True,
unaired=(sickbeard.SEARCH_UNAIRED and not sickbeard.UNAIRED_RECENT_SEARCH_ONLY))
if w:
wanted_list.append(w)
parts = []
if standard_backlog and not torrent_only and not continued_backlog:
fullbacklogparts = sum([len(w) for w in wanted_list if w]) // sickbeard.BACKLOG_FREQUENCY
h_part = []
counter = 0
for w in wanted_list:
f = False
for season, segment in w.iteritems():
counter += 1
if not f:
h_part.append([segment[0].show.indexerid, segment[0].show.indexer])
f = True
if counter > fullbacklogparts:
counter = 0
parts.append(h_part)
h_part = []
if h_part:
parts.append(h_part)
def in_showlist(show, showlist):
return 0 < len([item for item in showlist if item[1] == show.indexer and item[0] == show.indexerid])
if not runparts and parts:
runparts = parts[0]
wanted_list = [w for w in wanted_list if w and in_showlist(w.itervalues().next()[0].show, runparts)]
limited_wanted_list = []
if standard_backlog and not torrent_only and runparts:
for curShow in sickbeard.showList:
if not curShow.paused and not in_showlist(curShow, runparts):
w = wanted_episodes(curShow, limited_from_date, make_dict=True,
unaired=(sickbeard.SEARCH_UNAIRED and not sickbeard.UNAIRED_RECENT_SEARCH_ONLY))
if w:
limited_wanted_list.append(w)
self.add_backlog_item(wanted_list, standard_backlog, limited_backlog, forced, torrent_only)
if standard_backlog and not torrent_only and limited_wanted_list:
self.add_backlog_item(limited_wanted_list, standard_backlog, True, forced, torrent_only)
if standard_backlog and not torrent_only and not continued_backlog:
cl = ([], [['DELETE FROM backlogparts']])[len(parts) > 1]
for i, l in enumerate(parts):
if 0 == i:
continue
for m in l:
cl.append(['INSERT INTO backlogparts (part, indexerid, indexer) VALUES (?,?,?)',
[i + 1, m[0], m[1]]])
if 0 < len(cl):
my_db.mass_action(cl)
# don't consider this an actual backlog search if we only did recent eps
# or if we only did certain shows
if from_date == datetime.date.fromordinal(1) and not which_shows:
self._set_last_backlog(cur_date)
self._get_last_backlog()
if standard_backlog and not torrent_only:
self._set_last_runtime(now)
self.amActive = False
self._reset_progress_indicator()
@staticmethod
def _get_last_runtime():
logger.log('Retrieving the last runtime of Backlog from the DB', logger.DEBUG)
my_db = db.DBConnection()
sql_results = my_db.select('SELECT * FROM info')
if 0 == len(sql_results):
last_run_time = 1
elif None is sql_results[0]['last_run_backlog'] or '' == sql_results[0]['last_run_backlog']:
last_run_time = 1
else:
last_run_time = int(sql_results[0]['last_run_backlog'])
if last_run_time > sbdatetime.now().totimestamp(default=0):
last_run_time = 1
return last_run_time
def _set_last_runtime(self, when):
logger.log('Setting the last backlog runtime in the DB to %s' % when, logger.DEBUG)
my_db = db.DBConnection()
sql_results = my_db.select('SELECT * FROM info')
if len(sql_results) == 0:
my_db.action('INSERT INTO info (last_backlog, last_indexer, last_run_backlog) VALUES (?,?,?)',
[1, 0, sbdatetime.totimestamp(when, default=0)])
else:
my_db.action('UPDATE info SET last_run_backlog=%s' % sbdatetime.totimestamp(when, default=0))
self.nextBacklog = datetime.datetime.fromtimestamp(1)
def _get_last_backlog(self):
logger.log('Retrieving the last check time from the DB', logger.DEBUG)
my_db = db.DBConnection()
sql_results = my_db.select('SELECT * FROM info')
if 0 == len(sql_results):
last_backlog = 1
elif None is sql_results[0]['last_backlog'] or '' == sql_results[0]['last_backlog']:
last_backlog = 1
else:
last_backlog = int(sql_results[0]['last_backlog'])
if last_backlog > datetime.date.today().toordinal():
last_backlog = 1
self._lastBacklog = last_backlog
return self._lastBacklog
@staticmethod
def _set_last_backlog(when):
logger.log('Setting the last backlog in the DB to %s' % when, logger.DEBUG)
my_db = db.DBConnection()
sql_results = my_db.select('SELECT * FROM info')
if len(sql_results) == 0:
my_db.action('INSERT INTO info (last_backlog, last_indexer, last_run_backlog) VALUES (?,?,?)',
[str(when), 0, 1])
else:
my_db.action('UPDATE info SET last_backlog=%s' % when)
def run(self):
try:
force_type = self.forcetype
force = self.force
self.forcetype = NORMAL_BACKLOG
self.force = False
self.search_backlog(force_type=force_type, force=force)
except:
self.amActive = False
raise