from __future__ import print_function
from __future__ import absolute_import
from Components.ActionMap import ActionMap
from Components.Button import Button
from Components.config import config
from Components.MenuList import MenuList
from Components.TimerList import TimerList
from Components.TimerSanityCheck import TimerSanityCheck
from Components.UsageConfig import preferredTimerPath
from RecordTimer import RecordTimerEntry, parseEvent, AFTEREVENT
from Screens.Screen import Screen
from Screens.ChoiceBox import ChoiceBox
from Screens.MessageBox import MessageBox
from ServiceReference import ServiceReference
from Screens.TimerEntry import TimerEntry, TimerLog
from Tools.BoundFunction import boundFunction
from functools import cmp_to_key
from time import time
from timer import TimerEntry as RealTimerEntry

class TimerEditList(Screen):
	EMPTY = 0
	ENABLE = 1
	DISABLE = 2
	CLEANUP = 3
	DELETE = 4
	
	def __init__(self, session):
		Screen.__init__(self, session)
		self.list = []
		self._timerlist = TimerList(self.list)
		self["timerlist"] = self._timerlist
		self.fillTimerList()

		self.key_red_choice = self.EMPTY
		self.key_yellow_choice = self.EMPTY
		self.key_blue_choice = self.EMPTY
		
		self["key_red"] = Button(" ")
		self["key_green"] = Button(_("Add"))
		self["key_yellow"] = Button(" ")
		self["key_blue"] = Button(" ")

		print("key_red_choice:",self.key_red_choice)

		self["actions"] = ActionMap(["OkCancelActions", "DirectionActions", "ShortcutActions", "TimerEditActions"], 
			{
				"ok": self.openEdit,
				"cancel": self.leave,
				"green": self.addCurrentTimer,
				"log": self.showLog,
				"left": self.left,
				"right": self.right,
				"up": self.up,
				"down": self.down
			}, -1)
		self.session.nav.RecordTimer.on_state_change.append(self.onStateChange)
		self.onShown.append(self.updateState)

	def up(self):
		self["timerlist"].instance.moveSelection(self["timerlist"].instance.moveUp)
		self.updateState()
		
	def down(self):
		self["timerlist"].instance.moveSelection(self["timerlist"].instance.moveDown)
		self.updateState()

	def left(self):
		self["timerlist"].instance.moveSelection(self["timerlist"].instance.pageUp)
		self.updateState()
		
	def right(self):
		self["timerlist"].instance.moveSelection(self["timerlist"].instance.pageDown)
		self.updateState()
		
	def toggleDisabledState(self):
		cur=self["timerlist"].getCurrent()
		if cur:
			t = cur
			if t.disabled:
				print("try to ENABLE timer")
				t.enable()
				timersanitycheck = TimerSanityCheck(self.session.nav.RecordTimer.timer_list, cur)
				if not timersanitycheck.check():
					t.disable()
					print("Sanity check failed")
					simulTimerList = timersanitycheck.getSimulTimerList()
					if simulTimerList is not None:
						self.session.openWithCallback(self.finishedEdit, TimerSanityConflict, simulTimerList)
				else:
					print("Sanity check passed")
					if timersanitycheck.doubleCheck():
						t.disable()
			else:
				if t.isRunning():
					if t.repeated:
						list = (
							(_("Stop current event but not coming events"), "stoponlycurrent"),
							(_("Stop current event and disable coming events"), "stopall"),
							(_("Don't stop current event but disable coming events"), "stoponlycoming")
						)
						self.session.openWithCallback(boundFunction(self.runningEventCallback, t), ChoiceBox, title=_("Repeating event currently recording... What do you want to do?"), list = list)
				else:
					t.disable()
			self.session.nav.RecordTimer.timeChanged(t)
			self.refill()
			self.updateState()

	def runningEventCallback(self, t, result):
		if result is not None:
			if result[1] == "stoponlycurrent" or result[1] == "stopall":
				t.enable()
				t.processRepeated(findRunningEvent = False)
				self.session.nav.RecordTimer.doActivate(t)
			if result[1] == "stoponlycoming" or result[1] == "stopall":
				t.disable()
			self.session.nav.RecordTimer.timeChanged(t)
			self.refill()
			self.updateState()

	def removeAction(self, descr):
		actions = self["actions"].actions
		if descr in actions:
			del actions[descr]

	def updateState(self):
		cur = self["timerlist"].getCurrent()
		if cur:
			if self.key_red_choice != self.DELETE:
				self["actions"].actions.update({"red":self.removeTimerQuestion})
				self["key_red"].setText(_("Delete"))
				self.key_red_choice = self.DELETE
			
			if cur.disabled and (self.key_yellow_choice != self.ENABLE):
				self["actions"].actions.update({"yellow":self.toggleDisabledState})
				self["key_yellow"].setText(_("Enable"))
				self.key_yellow_choice = self.ENABLE
			elif cur.isRunning() and not cur.repeated and (self.key_yellow_choice != self.EMPTY):
				self.removeAction("yellow")
				self["key_yellow"].setText(" ")
				self.key_yellow_choice = self.EMPTY
			elif ((not cur.isRunning())or cur.repeated ) and (not cur.disabled) and (self.key_yellow_choice != self.DISABLE):
				self["actions"].actions.update({"yellow":self.toggleDisabledState})
				self["key_yellow"].setText(_("Disable"))
				self.key_yellow_choice = self.DISABLE
		else:
			if self.key_red_choice != self.EMPTY:
				self.removeAction("red")
				self["key_red"].setText(" ")
				self.key_red_choice = self.EMPTY
			if self.key_yellow_choice != self.EMPTY:
				self.removeAction("yellow")
				self["key_yellow"].setText(" ")
				self.key_yellow_choice = self.EMPTY
		
		showCleanup = True
		for x in self.list:
			if (not x[0].disabled) and (x[1] == True):
				break
		else:
			showCleanup = False
		
		if showCleanup and (self.key_blue_choice != self.CLEANUP):
			self["actions"].actions.update({"blue":self.cleanupQuestion})
			self["key_blue"].setText(_("Cleanup"))
			self.key_blue_choice = self.CLEANUP
		elif (not showCleanup) and (self.key_blue_choice != self.EMPTY):
			self.removeAction("blue")
			self["key_blue"].setText(" ")
			self.key_blue_choice = self.EMPTY

	def fillTimerList(self):
		#helper function to move finished timers to end of list
		def eol_compare(x, y):
			if x[0].state != y[0].state and x[0].state == RealTimerEntry.StateEnded or y[0].state == RealTimerEntry.StateEnded:
				return cmp(x[0].state, y[0].state)
			return cmp(x[0].begin, y[0].begin)

		timers = [(timer, False) for timer in self.session.nav.RecordTimer.timer_list]
		timers.extend([(timer, True) for timer in self.session.nav.RecordTimer.processed_timers])
		if config.usage.timerlist_finished_timer_position.index: #end of list
			timers.sort(key=cmp_to_key(eol_compare))
		else:
			timers.sort(key = lambda x: x[0].begin)
		self.list = timers
		self._timerlist.list = self.list

	def showLog(self):
		cur=self["timerlist"].getCurrent()
		if cur:
			self.session.openWithCallback(self.finishedEdit, TimerLog, cur)

	def openEdit(self):
		cur=self["timerlist"].getCurrent()
		if cur:
			self.session.openWithCallback(self.finishedEdit, TimerEntry, cur)

	def cleanupQuestion(self):
		self.session.openWithCallback(self.cleanupTimer, MessageBox, _("Really delete done timers?"))
	
	def cleanupTimer(self, delete):
		if delete:
			self.session.nav.RecordTimer.cleanup()
			self.refill()
			self.updateState()

	def removeTimerQuestion(self):
		cur = self["timerlist"].getCurrent()
		if not cur:
			return

		self.session.openWithCallback(self.removeTimer, MessageBox, _("Do you really want to delete %s?") % (cur.name))

	def removeTimer(self, result):
		if not result:
			return
		list = self["timerlist"]
		cur = list.getCurrent()
		if cur:
			timer = cur
			timer.afterEvent = AFTEREVENT.NONE
			self.session.nav.RecordTimer.removeEntry(timer)
			self.refill()
			self.updateState()

	def refill(self):
		self.fillTimerList()

	def addCurrentTimer(self):
		event = None
		service = self.session.nav.getCurrentService()
		if service is not None:
			info = service.info()
			if info is not None:
				event = info.getEvent(0)

		# FIXME only works if already playing a service
		serviceref = ServiceReference(self.session.nav.getCurrentlyPlayingServiceReference())
		
		if event is None:	
			data = (int(time()), int(time() + 60), "", "", None)
		else:
			data = parseEvent(event, description = False)

		self.addTimer(RecordTimerEntry(serviceref, checkOldTimers = True, dirname = preferredTimerPath(), *data))
		
	def addTimer(self, timer):
		self.session.openWithCallback(self.finishedAdd, TimerEntry, timer)
			
		
	def finishedEdit(self, answer):
		print("finished edit")
		
		if answer[0]:
			print("Edited timer")
			entry = answer[1]
			timersanitycheck = TimerSanityCheck(self.session.nav.RecordTimer.timer_list, entry)
			success = False
			if not timersanitycheck.check():
				simulTimerList = timersanitycheck.getSimulTimerList()
				if simulTimerList is not None:
					for x in simulTimerList:
						if x.setAutoincreaseEnd(entry):
							self.session.nav.RecordTimer.timeChanged(x)
					if not timersanitycheck.check():
						simulTimerList = timersanitycheck.getSimulTimerList()
						if simulTimerList is not None:
							self.session.openWithCallback(self.finishedEdit, TimerSanityConflict, timersanitycheck.getSimulTimerList())
					else:
						success = True
			else:
				success = True
			if success:
				print("Sanity check passed")
				self.session.nav.RecordTimer.timeChanged(entry)
			
			self.fillTimerList()
			self.updateState()
		else:
			print("Timeredit aborted")

	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.fillTimerList()
			self.updateState()
		else:
			print("Timeredit aborted")

	def finishSanityCorrection(self, answer):
		self.finishedAdd(answer)

	def leave(self):
		self.session.nav.RecordTimer.on_state_change.remove(self.onStateChange)
		self.close()

	def onStateChange(self, entry):
		self.refill()
		self.updateState()

class TimerSanityConflict(Screen):
	EMPTY = 0
	ENABLE = 1
	DISABLE = 2
	EDIT = 3
	
	def __init__(self, session, timer):
		Screen.__init__(self, session)
		self.timer = timer
		print("TimerSanityConflict")
			
		self["timer1"] = TimerList(self.getTimerList(timer[0]))
		self.list = []
		self.list2 = []
		count = 0
		for x in timer:
			if count != 0:
				self.list.append((_("Conflicting timer") + " " + str(count), x))
				self.list2.append((timer[count], False))
			count += 1
		if count == 1:
			self.list.append((_("Channel not in services list")))

		self["list"] = MenuList(self.list)
		self["timer2"] = TimerList(self.list2)

		self["key_red"] = Button("Edit")
		self["key_green"] = Button(" ")
		self["key_yellow"] = Button(" ")
		self["key_blue"] = Button(" ")

		self.key_green_choice = self.EMPTY
		self.key_yellow_choice = self.EMPTY
		self.key_blue_choice = self.EMPTY

		self["actions"] = ActionMap(["OkCancelActions", "DirectionActions", "ShortcutActions", "TimerEditActions"], 
			{
				"ok": self.leave_ok,
				"cancel": self.leave_cancel,
				"red": self.editTimer1,
				"up": self.up,
				"down": self.down
			}, -1)
		self.onShown.append(self.updateState)

	def getTimerList(self, timer):
		return [(timer, False)]

	def editTimer1(self):
		self.session.openWithCallback(self.finishedEdit, TimerEntry, self["timer1"].getCurrent())

	def toggleTimer1(self):
		if self.timer[0].disabled:
			self.timer[0].disabled = False
		else:
			if not self.timer[0].isRunning():
				self.timer[0].disabled = True
		self.finishedEdit((True, self.timer[0]))
	
	def editTimer2(self):
		self.session.openWithCallback(self.finishedEdit, TimerEntry, self["timer2"].getCurrent())

	def toggleTimer2(self):
		x = self["list"].getSelectedIndex() + 1 # the first is the new timer so we do +1 here
		if self.timer[x].disabled:
			self.timer[x].disabled = False
		elif not self.timer[x].isRunning():
				self.timer[x].disabled = True
		self.finishedEdit((True, self.timer[0]))
	
	def finishedEdit(self, answer):
		self.leave_ok()
	
	def leave_ok(self):
		self.close((True, self.timer[0]))
	
	def leave_cancel(self):
		self.close((False, self.timer[0]))

	def up(self):
		self["list"].instance.moveSelection(self["list"].instance.moveUp)
		self["timer2"].moveToIndex(self["list"].getSelectedIndex())
		
	def down(self):
		self["list"].instance.moveSelection(self["list"].instance.moveDown)
		self["timer2"].moveToIndex(self["list"].getSelectedIndex())

	def removeAction(self, descr):
		actions = self["actions"].actions
		if descr in actions:
			del actions[descr]

	def updateState(self):
		if self.timer[0] is not None:
			if self.timer[0].disabled and self.key_green_choice != self.ENABLE:
				self["actions"].actions.update({"green":self.toggleTimer1})
				self["key_green"].setText(_("Enable"))
				self.key_green_choice = self.ENABLE
			elif self.timer[0].isRunning() and not self.timer[0].repeated and self.key_green_choice != self.EMPTY:
				self.removeAction("green")
				self["key_green"].setText(" ")
				self.key_green_choice = self.EMPTY
			elif (not self.timer[0].isRunning() or self.timer[0].repeated ) and self.key_green_choice != self.DISABLE:
				self["actions"].actions.update({"green":self.toggleTimer1})
				self["key_green"].setText(_("Disable"))
				self.key_green_choice = self.DISABLE
		
		if len(self.timer) > 1:
			x = self["list"].getSelectedIndex()
			if self.timer[x] is not None:
				if self.key_yellow_choice == self.EMPTY:
					self["actions"].actions.update({"yellow":self.editTimer2})
					self["key_yellow"].setText(_("Edit"))
					self.key_yellow_choice = self.EDIT
				if self.timer[x].disabled and self.key_blue_choice != self.ENABLE:
					self["actions"].actions.update({"blue":self.toggleTimer2})
					self["key_blue"].setText(_("Enable"))
					self.key_blue_choice = self.ENABLE
				elif self.timer[x].isRunning() and not self.timer[x].repeated and self.key_blue_choice != self.EMPTY:
					self.removeAction("blue")
					self["key_blue"].setText(" ")
					self.key_blue_choice = self.EMPTY
				elif (not self.timer[x].isRunning() or self.timer[x].repeated ) and self.key_blue_choice != self.DISABLE:
					self["actions"].actions.update({"blue":self.toggleTimer2})
					self["key_blue"].setText(_("Disable"))
					self.key_blue_choice = self.DISABLE
		else:
#FIXME.... this doesnt hide the buttons self.... just the text
			if self.key_yellow_choice != self.EMPTY:
				self.removeAction("yellow")
				self["key_yellow"].setText(" ")
				self.key_yellow_choice = self.EMPTY
			if self.key_blue_choice != self.EMPTY:
				self.removeAction("blue")
				self["key_blue"].setText(" ")
				self.key_blue_choice = self.EMPTY
