from Screen import Screen
from Components.config import config, ConfigClock
from Components.Button import Button
from Components.Pixmap import Pixmap
from Components.Label import Label
from Components.EpgList import EPGList, EPG_TYPE_SINGLE, EPG_TYPE_SIMILAR, EPG_TYPE_MULTI
from Components.ActionMap import ActionMap
from Components.TimerSanityCheck import TimerSanityCheck
from Screens.TimerEdit import TimerSanityConflict
from Screens.EventView import EventViewSimple
from Screens.MessageBox import MessageBox
from TimeDateInput import TimeDateInput
from enigma import eServiceReference
from RecordTimer import RecordTimerEntry, parseEvent, AFTEREVENT
from TimerEntry import TimerEntry
from ServiceReference import ServiceReference
from time import localtime, time

mepg_config_initialized = False

class EPGSelection(Screen):
	EMPTY = 0
	ADD_TIMER = 1
	REMOVE_TIMER = 2
	
	ZAP = 1

	def __init__(self, session, service, zapFunc=None, eventid=None, bouquetChangeCB=None):
		Screen.__init__(self, session)
		self.bouquetChangeCB = bouquetChangeCB
		self.ask_time = -1 #now
		self["key_red"] = Button("")
		self.closeRecursive = False
		if isinstance(service, str) and eventid != None:
			self.type = EPG_TYPE_SIMILAR
			self["key_yellow"] = Button()
			self["key_blue"] = Button()
			self["key_red"] = Button()
			self.currentService=service
			self.eventid = eventid
			self.zapFunc = None
		elif isinstance(service, eServiceReference) or isinstance(service, str):
			self.type = EPG_TYPE_SINGLE
			self["key_yellow"] = Button()
			self["key_blue"] = Button()
			self.currentService=ServiceReference(service)
			self.zapFunc = None
			self.sort_type = 0
			self.setSortDescription()
		else:
			self.skinName = "EPGSelectionMulti"
			self.type = EPG_TYPE_MULTI
			self["key_yellow"] = Button(_("Prev"))
			self["key_blue"] = Button(_("Next"))
			self["now_button"] = Pixmap()
			self["next_button"] = Pixmap()
			self["more_button"] = Pixmap()
			self["now_button_sel"] = Pixmap()
			self["next_button_sel"] = Pixmap()
			self["more_button_sel"] = Pixmap()
			self["now_text"] = Label()
			self["next_text"] = Label()
			self["more_text"] = Label()
			self["date"] = Label()
			self.services = service
			self.zapFunc = zapFunc

		self["key_green"] = Button(_("Add timer"))
		self.key_green_choice = self.ADD_TIMER
		self.key_red_choice = self.EMPTY
		self["list"] = EPGList(type = self.type, selChangedCB = self.onSelectionChanged, timer = self.session.nav.RecordTimer)

		self["actions"] = ActionMap(["EPGSelectActions", "OkCancelActions"],
			{
				"cancel": self.closeScreen,
				"ok": self.eventSelected,
				"timerAdd": self.timerAdd,
				"yellow": self.yellowButtonPressed,
				"blue": self.blueButtonPressed,
				"info": self.infoKeyPressed,
				"red": self.zapTo,
				"input_date_time": self.enterDateTime,
				"nextBouquet": self.nextBouquet,
				"prevBouquet": self.prevBouquet
			})
		self["actions"].csel = self

		self.onLayoutFinish.append(self.onCreate)

	def nextBouquet(self):
		if self.bouquetChangeCB:
			self.bouquetChangeCB(1, self)

	def prevBouquet(self):
		if self.bouquetChangeCB:
			self.bouquetChangeCB(-1, self)

	def enterDateTime(self):
		if self.type == EPG_TYPE_MULTI:
			global mepg_config_initialized
			if not mepg_config_initialized:
				config.misc.prev_mepg_time=ConfigClock(default = time())
				mepg_config_initialized = True
			self.session.openWithCallback(self.onDateTimeInputClosed, TimeDateInput, config.misc.prev_mepg_time )

	def onDateTimeInputClosed(self, ret):
		if len(ret) > 1:
			if ret[0]:
				self.ask_time=ret[1]
				self["list"].fillMultiEPG(self.services, ret[1])

	def closeScreen(self):
		self.close(self.closeRecursive)

	def infoKeyPressed(self):
		cur = self["list"].getCurrent()
		event = cur[0]
		service = cur[1]
		if event is not None:
			if self.type != EPG_TYPE_SIMILAR:
				self.session.open(EventViewSimple, event, service, self.eventViewCallback, self.openSimilarList)
			else:
				self.session.open(EventViewSimple, event, service, self.eventViewCallback)

	def openSimilarList(self, eventid, refstr):
		self.session.open(EPGSelection, refstr, None, eventid)

	def setServices(self, services):
		self.services = services
		self.onCreate()

	#just used in multipeg
	def onCreate(self):
		l = self["list"]
		l.recalcEntrySize()
		if self.type == EPG_TYPE_MULTI:
			l.fillMultiEPG(self.services, self.ask_time)
			l.moveToService(self.session.nav.getCurrentlyPlayingServiceReference())
		elif self.type == EPG_TYPE_SINGLE:
			l.fillSingleEPG(self.currentService)
		else:
			l.fillSimilarList(self.currentService, self.eventid)

	def eventViewCallback(self, setEvent, setService, val):
		l = self["list"]
		old = l.getCurrent()
		if val == -1:
			self.moveUp()
		elif val == +1:
			self.moveDown()
		cur = l.getCurrent()
		if self.type == EPG_TYPE_MULTI and cur[0] is None and cur[1].ref != old[1].ref:
			self.eventViewCallback(setEvent, setService, val)
		else:
			setService(cur[1])
			setEvent(cur[0])

	def zapTo(self): # just used in multiepg
		if self.zapFunc and self.key_red_choice == self.ZAP:
			lst = self["list"]
			count = lst.getCurrentChangeCount()
			if count == 0:
				self.closeRecursive = True
				ref = lst.getCurrent()[1]
				self.zapFunc(ref.ref)

	def eventSelected(self):
		self.infoKeyPressed()

	def yellowButtonPressed(self):
		if self.type == EPG_TYPE_MULTI:
			self["list"].updateMultiEPG(-1)
		elif self.type == EPG_TYPE_SINGLE:
			if self.sort_type == 0:
				self.sort_type = 1
			else:
				self.sort_type = 0
			self["list"].sortSingleEPG(self.sort_type)
			self.setSortDescription()

	def setSortDescription(self):
		if self.sort_type == 1:
			# TRANSLATORS: This must fit into the header button in the EPG-List
			self["key_yellow"].setText(_("Sort Time"))
		else:
			# TRANSLATORS: This must fit into the header button in the EPG-List
			self["key_yellow"].setText(_("Sort A-Z"))

	def blueButtonPressed(self):
		if self.type == EPG_TYPE_MULTI:
			self["list"].updateMultiEPG(1)

	def removeTimer(self, timer):
		timer.afterEvent = AFTEREVENT.NONE
		self.session.nav.RecordTimer.removeEntry(timer)
		self["key_green"].setText(_("Add timer"))
		self.key_green_choice = self.ADD_TIMER

	def timerAdd(self):
		cur = self["list"].getCurrent()
		event = cur[0]
		serviceref = cur[1]
		if event is None:
			return
		eventid = event.getEventId()
		refstr = serviceref.ref.toString()
		for timer in self.session.nav.RecordTimer.timer_list:
			if timer.eit == eventid and timer.service_ref.ref.toString() == refstr:
				cb_func = lambda ret : not ret or self.removeTimer(timer)
				self.session.openWithCallback(cb_func, MessageBox, _("Do you really want to delete %s?") % event.getEventName())
				break
		else:
			newEntry = RecordTimerEntry(serviceref, checkOldTimers = True, *parseEvent(event))
			self.session.openWithCallback(self.finishedAdd, TimerEntry, newEntry)

	def finishedAdd(self, answer):
		print "finished add"
		if answer[0]:
			entry = answer[1]
			simulTimerList = self.session.nav.RecordTimer.record(entry)
			if simulTimerList is not None:
				for x in simulTimerList:
					if x.setAutoincreaseEnd(entry):
						self.session.nav.RecordTimer.timeChanged(x)
				simulTimerList = self.session.nav.RecordTimer.record(entry)
				if simulTimerList is not None:
					self.session.openWithCallback(self.finishSanityCorrection, TimerSanityConflict, simulTimerList)
			self["key_green"].setText(_("Remove timer"))
			self.key_green_choice = self.REMOVE_TIMER
		else:
			self["key_green"].setText(_("Add timer"))
			self.key_green_choice = self.ADD_TIMER
			print "Timeredit aborted"
	
	def finishSanityCorrection(self, answer):
		self.finishedAdd(answer)

	def moveUp(self):
		self["list"].moveUp()

	def moveDown(self):
		self["list"].moveDown()
	
	def applyButtonState(self, state):
		if state == 0:
			self["now_button"].hide()
			self["now_button_sel"].hide()
			self["next_button"].hide()
			self["next_button_sel"].hide()
			self["more_button"].hide()
			self["more_button_sel"].hide()
			self["now_text"].hide()
			self["next_text"].hide()
			self["more_text"].hide()
			self["key_red"].setText("")
		else:
			if state == 1:
				self["now_button_sel"].show()
				self["now_button"].hide()
			else:
				self["now_button"].show()
				self["now_button_sel"].hide()

			if state == 2:
				self["next_button_sel"].show()
				self["next_button"].hide()
			else:
				self["next_button"].show()
				self["next_button_sel"].hide()

			if state == 3:
				self["more_button_sel"].show()
				self["more_button"].hide()
			else:
				self["more_button"].show()
				self["more_button_sel"].hide()

	def onSelectionChanged(self):
		cur = self["list"].getCurrent()
		if cur is None:
			if self.key_green_choice != self.EMPTY:
				self["key_green"].setText("")
				self.key_green_choice = self.EMPTY
			if self.key_red_choice != self.EMPTY:
				self["key_red"].setText("")
				self.key_red_choice = self.EMPTY
			return
		event = cur[0]
		if self.type == EPG_TYPE_MULTI:
			count = self["list"].getCurrentChangeCount()
			if self.ask_time != -1:
				self.applyButtonState(0)
			elif count > 1:
				self.applyButtonState(3)
			elif count > 0:
				self.applyButtonState(2)
			else:
				self.applyButtonState(1)
			days = [ _("Mon"), _("Tue"), _("Wed"), _("Thu"), _("Fri"), _("Sat"), _("Sun") ]
			datestr = ""
			if event is not None:
				now = time()
				beg = event.getBeginTime()
				nowTime = localtime(now)
				begTime = localtime(beg)
				if nowTime[2] != begTime[2]:
					datestr = '%s %d.%d.'%(days[begTime[6]], begTime[2], begTime[1])
				else:
					datestr = '%s %d.%d.'%(_("Today"), begTime[2], begTime[1])
			self["date"].setText(datestr)

		if cur[1] is None  or cur[1].getServiceName() == "":
			if self.key_green_choice != self.EMPTY:
				self["key_green"].setText("")
				self.key_green_choice = self.EMPTY
			if self.key_red_choice != self.EMPTY:
				self["key_red"].setText("")
				self.key_red_choice = self.EMPTY
			return
		elif self.key_red_choice != self.ZAP and  self.type == EPG_TYPE_MULTI:
				self["key_red"].setText("Zap")
				self.key_red_choice = self.ZAP

		if event is None:
			if self.key_green_choice != self.EMPTY:
				self["key_green"].setText("")
				self.key_green_choice = self.EMPTY
			return

		serviceref = cur[1]
		eventid = event.getEventId()
		refstr = serviceref.ref.toString()
		isRecordEvent = False
		for timer in self.session.nav.RecordTimer.timer_list:
			if timer.eit == eventid and timer.service_ref.ref.toString() == refstr:
				isRecordEvent = True
				break
		if isRecordEvent and self.key_green_choice != self.REMOVE_TIMER:
			self["key_green"].setText(_("Remove timer"))
			self.key_green_choice = self.REMOVE_TIMER
		elif not isRecordEvent and self.key_green_choice != self.ADD_TIMER:
			self["key_green"].setText(_("Add timer"))
			self.key_green_choice = self.ADD_TIMER