from ElevatorConstants import *
from direct.directnotify import DirectNotifyGlobal
from direct.distributed import DistributedObjectAI
from direct.distributed.ClockDelta import *
from direct.fsm.FSM import FSM
from direct.task import Task
from otp.ai.AIBase import *
from toontown.toonbase import ToontownGlobals


class DistributedElevatorFSMAI(DistributedObjectAI.DistributedObjectAI, FSM):
    notify = DirectNotifyGlobal.directNotify.newCategory('DistributedElevatorFSMAI')
    defaultTransitions = {
        'Off': [
            'Opening',
            'Closed'],
        'Opening': [
            'WaitEmpty',
            'WaitCountdown',
            'Opening',
            'Closing'],
        'WaitEmpty': [
            'WaitCountdown',
            'Closing'],
        'WaitCountdown': [
            'WaitEmpty',
            'AllAboard',
            'Closing'],
        'AllAboard': [
            'WaitEmpty',
            'Closing'],
        'Closing': [
            'Closed',
            'WaitEmpty',
            'Closing',
            'Opening'],
        'Closed': [
            'Opening'] }
    id = 0

    def __init__(self, air, bldg, numSeats = 4):
        DistributedObjectAI.DistributedObjectAI.__init__(self, air)
        FSM.__init__(self, 'Elevator_%s_FSM' % self.id)
        self.type = ELEVATOR_NORMAL
        self.countdownTime = ElevatorData[self.type]['countdown']
        self.bldg = bldg
        self.bldgDoId = bldg.getDoId()
        self.seats = []
        for seat in xrange(numSeats):
            self.seats.append(None)
        self.accepting = 0

    def delete(self):
        del self.bldg
        self.ignoreAll()
        DistributedObjectAI.DistributedObjectAI.delete(self)

    def generate(self):
        DistributedObjectAI.DistributedObjectAI.generate(self)
        self.start()

    def getBldgDoId(self):
        return self.bldgDoId

    def findAvailableSeat(self):
        for i in xrange(len(self.seats)):
            if self.seats[i] == None:
                return i

    def findAvatar(self, avId):
        for i in xrange(len(self.seats)):
            if self.seats[i] == avId:
                return i

    def countFullSeats(self):
        avCounter = 0
        for i in self.seats:
            if i:
                avCounter += 1
        return avCounter

    def countOpenSeats(self):
        openSeats = 0
        for i in xrange(len(self.seats)):
            if self.seats[i] == None:
                openSeats += 1
        return openSeats

    def rejectingBoardersHandler(self, avId, reason = 0):
        self.rejectBoarder(avId, reason)

    def rejectBoarder(self, avId, reason = 0):
        self.sendUpdateToAvatarId(avId, 'rejectBoard', [avId, reason])

    def acceptingBoardersHandler(self, avId, reason = 0):
        self.notify.debug('acceptingBoardersHandler')
        seatIndex = self.findAvailableSeat()
        if seatIndex == None:
            self.rejectBoarder(avId, REJECT_NOSEAT)
        else:
            self.acceptBoarder(avId, seatIndex)

    def acceptBoarder(self, avId, seatIndex):
        self.notify.debug('acceptBoarder')
        if self.findAvatar(avId) != None:
            return None
        self.seats[seatIndex] = avId
        self.timeOfBoarding = globalClock.getRealTime()
        self.sendUpdate('fillSlot' + str(seatIndex), [avId])

    def rejectingExitersHandler(self, avId):
        self.rejectExiter(avId)

    def rejectExiter(self, avId):
        pass

    def acceptingExitersHandler(self, avId):
        self.acceptExiter(avId)

    def clearEmptyNow(self, seatIndex):
        self.sendUpdate('emptySlot' + str(seatIndex), [0, 0, globalClockDelta.getRealNetworkTime()])

    def clearFullNow(self, seatIndex):
        avId = self.seats[seatIndex]
        if avId == None:
            self.notify.warning('Clearing an empty seat index: ' + str(seatIndex) + ' ... Strange...')
        else:
            self.seats[seatIndex] = None
            self.sendUpdate('fillSlot' + str(seatIndex), [0])
            self.ignore(self.air.getAvatarExitEvent(avId))

    def d_setState(self, state):
        self.sendUpdate('setState', [state, globalClockDelta.getRealNetworkTime()])

    def getState(self):
        return self.state

    def avIsOKToBoard(self, av):
        return self.accepting

    def checkBoard(self, av):
        return 0

    def requestBoard(self, *args):
        self.notify.debug('requestBoard')
        avId = self.air.getAvatarIdFromSender()
        if self.findAvatar(avId) != None:
            self.notify.warning('Ignoring multiple requests from %s to board.' % avId)
            return None

        av = self.air.doId2do.get(avId)
        if av:
            newArgs = (avId,) + args
            boardResponse = self.checkBoard(av)
            newArgs = (avId,) + args + (boardResponse,)
            if boardResponse == 0:
                self.acceptingBoardersHandler(*newArgs)
            else:
                self.rejectingBoardersHandler(*newArgs)
        else:
            self.notify.warning('avid: %s does not exist, but tried to board an elevator' % avId)

    def requestExit(self, *args):
        if hasattr(self, 'air'):
            self.notify.debug('requestExit')
            avId = self.air.getAvatarIdFromSender()
            av = self.air.doId2do.get(avId)
            if av:
                newArgs = (avId,) + args
                if self.accepting:
                    self.acceptingExitersHandler(*newArgs)
                else:
                    self.rejectingExitersHandler(*newArgs)
            else:
                self.notify.warning('avId: %s does not exist, but tried to exit an elevator' % avId)

    def start(self):
        self.open()

    def enterOff(self):
        self.accepting = 0
        self.timeOfBoarding = None
        if hasattr(self, 'doId'):
            for seatIndex in xrange(len(self.seats)):
                taskMgr.remove(self.uniqueName('clearEmpty-' + str(seatIndex)))

    def exitOff(self):
        self.accepting = 0

    def open(self):
        self.request('Opening')

    def enterOpening(self):
        self.d_setState('Opening')
        self.accepting = 0
        for seat in self.seats:
            seat = None

    def exitOpening(self):
        self.accepting = 0
        taskMgr.remove(self.uniqueName('opening-timer'))

    def enterWaitCountdown(self):
        self.d_setState('WaitCountdown')
        self.accepting = 1

    def exitWaitCountdown(self):
        self.accepting = 0
        taskMgr.remove(self.uniqueName('countdown-timer'))

    def enterAllAboard(self):
        self.accepting = 0

    def exitAllAboard(self):
        self.accepting = 0
        taskMgr.remove(self.uniqueName('waitForAllAboard'))

    def enterClosing(self):
        self.d_setState('Closing')
        self.accepting = 0

    def exitClosing(self):
        self.accepting = 0
        taskMgr.remove(self.uniqueName('closing-timer'))

    def enterClosed(self):
        if hasattr(self, 'doId'):
            print self.doId
        self.d_setState('Closed')

    def exitClosed(self):
        pass

    def enterWaitEmpty(self):
        for i in xrange(len(self.seats)):
            self.seats[i] = None
        print self.seats
        self.d_setState('WaitEmpty')
        self.accepting = 1

    def exitWaitEmpty(self):
        self.accepting = 0