text: #
  #      Copyright (C) 2012 Tommy Winther
  #      http://tommy.winther.nu
  #
  #  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; either version 2, or (at your option)
  #  any later version.
  #
  #  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; see the file LICENSE.txt.  If not, write to
  #  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  #  http://www.gnu.org/copyleft/gpl.html
  #
  import datetime
  import os
  import xbmc
  import xbmcgui
  import source as src
  
  from strings import *
  
  
  class Notification(object):
      def __init__(self, database, addonPath):
          """
          @param database: source.Database
          """
          self.database = database
          self.addonPath = addonPath
          self.icon = os.path.join(self.addonPath, 'icon.png')
  
      def createAlarmClockName(self, programTitle, startTime):
          return 'tvguide-%s-%s' % (programTitle, startTime)
  
      def scheduleNotifications(self):
          xbmc.log("[script.tvguide] Scheduling notifications")
          for channelTitle, programTitle, startTime in self.database.getNotifications():
              self._scheduleNotification(channelTitle, programTitle, startTime)
  
      def _scheduleNotification(self, channelTitle, programTitle, startTime):
          t = startTime - datetime.datetime.now()
          timeToNotification = ((t.days * 86400) + t.seconds) / 60
          if timeToNotification < 0:
              return
  
          name = self.createAlarmClockName(programTitle, startTime)
  
          description = strings(NOTIFICATION_5_MINS, channelTitle)
          xbmc.executebuiltin('AlarmClock(%s-5mins,Notification(%s,%s,10000,%s),%d,True)' %
              (name.encode('utf-8', 'replace'), programTitle.encode('utf-8', 'replace'), description.encode('utf-8', 'replace'), self.icon, timeToNotification - 5))
  
          description = strings(NOTIFICATION_NOW, channelTitle)
          xbmc.executebuiltin('AlarmClock(%s-now,Notification(%s,%s,10000,%s),%d,True)' %
                              (name.encode('utf-8', 'replace'), programTitle.encode('utf-8', 'replace'), description.encode('utf-8', 'replace'), self.icon, timeToNotification))
  
      def _unscheduleNotification(self, programTitle, startTime):
          name = self.createAlarmClockName(programTitle, startTime)
          xbmc.executebuiltin('CancelAlarm(%s-5mins,True)' % name.encode('utf-8', 'replace'))
          xbmc.executebuiltin('CancelAlarm(%s-now,True)' % name.encode('utf-8', 'replace'))
  
      def addNotification(self, program):
          self.database.addNotification(program)
          self._scheduleNotification(program.channel.title, program.title, program.startDate)
  
      def removeNotification(self, program):
          self.database.removeNotification(program)
          self._unscheduleNotification(program.title, program.startDate)
  
  
  if __name__ == '__main__':
      database = src.Database()
  
      def onNotificationsCleared():
          xbmcgui.Dialog().ok(strings(CLEAR_NOTIFICATIONS), strings(DONE))
  
      def onInitialized(success):
          if success:
              database.clearAllNotifications()
              database.close(onNotificationsCleared)
          else:
              database.close()
  
      database.initialize(onInitialized)
  