from Screens.Screen import Screen
from Components.Sources.CurrentService import CurrentService
from Components.Sources.EventInfo import EventInfo
from Components.Sources.FrontendStatus import FrontendStatus
from Components.Sources.FrontendInfo import FrontendInfo
from Components.Sources.Source import Source
from Components.Sources.TunerInfo import TunerInfo
from Components.Sources.Boolean import Boolean
from Components.Sources.RecordState import RecordState
from Components.Converter.Combine import Combine
from Components.Renderer.FrontpanelLed import FrontpanelLed

class SessionGlobals(Screen):
	def __init__(self, session):
		Screen.__init__(self, session)
		self["CurrentService"] = CurrentService(session.nav)
		self["Event_Now"] = EventInfo(session.nav, EventInfo.NOW)
		self["Event_Next"] = EventInfo(session.nav, EventInfo.NEXT)
		self["FrontendStatus"] = FrontendStatus(service_source = session.nav.getCurrentService)
		self["FrontendInfo"] = FrontendInfo(navcore = session.nav)
		self["VideoPicture"] = Source()
		self["TunerInfo"] = TunerInfo()
		self["RecordState"] = RecordState(session)
		self["Standby"] = Boolean(fixed = False)
		
		from Components.SystemInfo import SystemInfo
		
		combine = Combine(func = lambda s: {(False, False): 0, (False, True): 1, (True, False): 2, (True, True): 3}[(s[0].boolean, s[1].boolean)])
		combine.connect(self["Standby"])
		combine.connect(self["RecordState"])

		#                      |  two leds  | single led |
		# recordstate  standby   red green   
		#    false      false    off   on     off
		#    true       false    blnk  on     blnk
		#    false      true      on   off    off
		#    true       true     blnk  off    blnk
		
		PATTERN_ON     = (20, 0xffffffff, 0xffffffff)
		PATTERN_OFF    = (20, 0, 0)
		PATTERN_BLINK  = (20, 0x55555555, 0xa7fccf7a)

		nr_leds = SystemInfo.get("NumFrontpanelLEDs", 0)

		if nr_leds == 1:
			FrontpanelLed(which = 0, boolean = False, patterns = [PATTERN_OFF, PATTERN_BLINK, PATTERN_OFF, PATTERN_BLINK]).connect(combine)
		elif nr_leds == 2:
			FrontpanelLed(which = 0, boolean = False, patterns = [PATTERN_OFF, PATTERN_BLINK, PATTERN_ON, PATTERN_BLINK]).connect(combine)
			FrontpanelLed(which = 1, boolean = False, patterns = [PATTERN_ON, PATTERN_ON, PATTERN_OFF, PATTERN_OFF]).connect(combine)