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import timer
import time
import math

from Tools import Notifications

from Components.config import config, ConfigYesNo, ConfigSelection, ConfigSubsection

from Screens.MessageBox import MessageBox
from Screens.Standby import Standby, TryQuitMainloop, inStandby, inTryQuitMainloop

class SleepTimerEntry(timer.TimerEntry):
	def __init__(self, begin):
		timer.TimerEntry.__init__(self, int(begin), int(begin))
		
		self.prepare_time = 0
		
	def getNextActivation(self):
		return self.begin
		
	def activate(self):
		if self.state == self.StateRunning:
			if config.SleepTimer.action.value == "shutdown":
				global inTryQuitMainloop
				if config.SleepTimer.ask.value and not inTryQuitMainloop:
					Notifications.AddNotificationWithCallback(self.shutdown, MessageBox, _("A sleep timer want's to shut down\nyour Dreambox. Shutdown now?"), timeout = 20)
				else:
					self.shutdown(True)
			elif config.SleepTimer.action.value == "standby":
				global inStandby
				if config.SleepTimer.ask.value and not inStandby:
					Notifications.AddNotificationWithCallback(self.standby, MessageBox, _("A sleep timer want's to set your\nDreambox to standby. Do that now?"), timeout = 20)
				else:
					self.standby(True)

		return True
		
	def shouldSkip(self):
		return False
	
	def shutdown(self, answer):
		global inTryQuitMainloop
		if answer is not None:
			if answer and not inTryQuitMainloop:
				Notifications.AddNotification(TryQuitMainloop, 1)

	def standby(self, answer):
		if answer is not None:
			global inStandby
			if answer and not inStandby:
				Notifications.AddNotification(Standby)
		
class SleepTimer(timer.Timer):
	def __init__(self):
		config.SleepTimer = ConfigSubsection()
		config.SleepTimer.ask = ConfigYesNo(default = True)
		config.SleepTimer.action = ConfigSelection(default = "shutdown", choices = [("shutdown", _("shutdown")), ("standby", _("standby"))])
		
		timer.Timer.__init__(self)
		self.defaultTime = 30
		
	def setSleepTime(self, sleeptime):
		self.clear()
		self.addTimerEntry(SleepTimerEntry(time.time() + 60 * sleeptime))

	def clear(self):
		self.timer_list = []
		
	def getCurrentSleepTime(self):
		if (self.getNextRecordingTime() == -1):
			return self.defaultTime
		return int(math.ceil((self.getNextRecordingTime() - time.time()) / 60))

	def isActive(self):
		return len(self.timer_list) > 0