from Screen import Screen
from Components.ActionMap import ActionMap
from Components.Button import Button
from Components.Label import Label
from Components.ScrollLabel import ScrollLabel
from enigma import eServiceEventPtr, eEPGCachePtr, eEPGCache
from ServiceReference import ServiceReference
from RecordTimer import RecordTimerEntry, parseEvent
from TimerEntry import TimerEntry
from time import localtime, asctime

class EventViewBase:
	def __init__(self, Event, Ref, callback=None):
		self.cbFunc = callback
		self.currentService=Ref
		self.isRecording = len(Ref.ref.getPath())
		self.event = Event
		self["epg_description"] = ScrollLabel()
		self["datetime"] = Label()
		self["channel"] = Label()
		self["duration"] = Label()
		self["key_red"] = Button("")
		if self.isRecording:
			self["key_green"] = Button("")
		else:
			self["key_green"] = Button(_("Add timer"))
		self["key_yellow"] = Button("")
		self["key_blue"] = Button("")
		self["actions"] = ActionMap(["OkCancelActions", "EventViewActions"],
			{
				"cancel": self.close,
				"ok": self.close,
				"pageUp": self.pageUp,
				"pageDown": self.pageDown,
				"prevEvent": self.prevEvent,
				"nextEvent": self.nextEvent,
				"timerAdd": self.timerAdd
			})
		self.onShown.append(self.onCreate)

	def onCreate(self):
		self.setEvent(self.event)
		self.setService(self.currentService)

	def prevEvent(self):
		if self.cbFunc is not None:
			self.cbFunc(self.setEvent, self.setService, -1)

	def nextEvent(self):
		if self.cbFunc is not None:
			self.cbFunc(self.setEvent, self.setService, +1)

	def timerAdd(self):
		if not self.isRecording:
			newEntry = RecordTimerEntry(self.currentService, *parseEvent(self.event))
			self.session.openWithCallback(self.timerEditFinished, TimerEntry, newEntry)

	def timerEditFinished(self, answer):
		if (answer[0]):
			self.session.nav.RecordTimer.record(answer[1])
		else:
			print "Timeredit aborted"

	def setService(self, service):
		self.currentService=service
		if self.isRecording:
			self["channel"].setText(_("Recording"))
		else:
			name = self.currentService.getServiceName()
			if name is not None:
				self["channel"].setText(name)
			else:
				self["channel"].setText(_("unknown service"))

	def sort_func(self,x,y):
		if x[1] < y[1]:
			return -1
		elif x[1] == y[1]:
			return 0
		else:
			return 1

	def setEvent(self, event):
		self.event = event
		id = event.getEventId()

		refstr = str(self.currentService)
		epgcache = eEPGCache.getInstance()
		text = event.getEventName()
		short = event.getShortDescription()
		ext = event.getExtendedDescription()
		if len(short) > 0 and short != text:
			text = text + '\n\n' + short
		if len(ext) > 0:
			if len(text) > 0:
				text = text + '\n\n'
			text = text + ext

	 # search similar broadcastings
		ret = epgcache.search(('NB', 100, eEPGCache.SIMILAR_BROADCASTINGS_SEARCH, refstr, id))
		if ret is not None:
			text += '\n\n' + _('Similar broadcasts:')
			ret.sort(self.sort_func)
			for x in ret:
				t = localtime(x[1])
				text += '\n%d.%d.%d, %02d:%02d  -  %s'%(t[2], t[1], t[0], t[3], t[4], x[0])

		self.setTitle(event.getEventName())
		self["epg_description"].setText(text)
		self["datetime"].setText(event.getBeginTimeString())
		self["duration"].setText(_("%d min")%(event.getDuration()/60))

	def pageUp(self):
		self["epg_description"].pageUp()

	def pageDown(self):
		self["epg_description"].pageDown()

class EventViewSimple(Screen, EventViewBase):
	def __init__(self, session, Event, Ref, callback=None):
		Screen.__init__(self, session)
		self.skinName = "EventView"
		EventViewBase.__init__(self, Event, Ref, callback)

class EventViewEPGSelect(Screen, EventViewBase):
	def __init__(self, session, Event, Ref, callback=None, singleEPGCB=None, multiEPGCB=None):
		Screen.__init__(self, session)
		self.skinName = "EventView"
		EventViewBase.__init__(self, Event, Ref, callback)
		self["key_yellow"].setText(_("Single EPG"))
		self["key_blue"].setText(_("Multi EPG"))
		self["epgactions"] = ActionMap(["EventViewEPGActions"],
			{
				"openSingleServiceEPG": singleEPGCB,
				"openMultiServiceEPG": multiEPGCB
			})