X-Git-Url: https://git.ralfj.de/saartuer.git/blobdiff_plain/1b72ccf6bcd0f5f1efbbeb39023be4c8fda0ad96..60b53b780de5b18308adfe0f61e0c739bdf3186d:/statemachine.py

diff --git a/statemachine.py b/statemachine.py
index 82665e3..4b82def 100644
--- a/statemachine.py
+++ b/statemachine.py
@@ -18,11 +18,19 @@ def play_sound (what):
 OPEN_REPEAT_TIMEOUT = 8
 OPEN_REPEAT_NUMBER = 3
 
+# StateClosing constants
+CLOSE_REPEAT_TIMEOUT = 8
+CLOSE_REPEAT_NUMBER = 3
+
 # StateAboutToOpen constants
 ABOUTOPEN_NERVLIST = [(5, lambda : play_sound("flipswitch")), (10, lambda:play_sound("flipswitch")), (10, lambda:Logger.warning("Space open but switch not flipped for 10 seconds")),\
 	(20, lambda:play_sound("flipswitch")), (30, lambda:play_sound("flipswitch")), (30, lambda:Logger.error("Space open but switch not flipped for 30 seconds")),\
 	(40, lambda:play_sound("flipswitch")), (50, lambda:play_sound("flipswitch")), (56, lambda:play_sound("flipswitch")), (60, lambda:Logger.critical("Space open but switch not flipped for 60 seconds"))]
 
+# StateAuf constants
+#  time that must pass between two bell_ringing events to buzz the door again (seconds)
+AUF_BELLBUZZ_REPEAT_TIME = 2
+
 # play_sound constants
 SOUNDS_DIRECTORY = "/opt/tuer/sounds/"
 SOUNDS_PLAYER = "/usr/bin/mplayer"
@@ -41,6 +49,7 @@ class StateMachine():
 			self.state_machine = state_machine
 			self.time_entered = time.time()
 			self.theDict = None
+			self.last_wakeup = self.time_entered
 		def handle_pins_event(self):
 			pass # one needn't implement this
 		def handle_buzz_event(self,arg): # this shouldn't be overwritten
@@ -50,12 +59,12 @@ class StateMachine():
 			if arg is not None:
 				arg("412 Precondition Failed: The current state (%s) cannot handle the OPEN event" % self.__class__.__name__)
 		def handle_wakeup_event(self):
-			pass # one needn't implement this
+			self.last_wakeup = time.time()
 		def pins(self):
 			return self.state_machine.pins
 		def actor(self):
 			return self.state_machine.actor
-		def handle_event(self,ev,arg):
+		def handle_event(self,ev,arg): # don't override
 			if arg is CMD_PINS:
 				self.handle_pins_event()
 			elif arg is CMD_BUZZ:
@@ -94,6 +103,7 @@ class StateMachine():
 		def __init__(self,callback,sm):
 			State.__init__(self,sm)
 			self.callbacks=[callback]
+			# FIXME: can we send "202 processing: Trying to open the door" here? Are the callbacks multi-use?
 			self.tries = 0
 			self.actor().act(Actor.CMD_OPEN)
 		def notify(self, did_it_work):
@@ -107,6 +117,7 @@ class StateMachine():
 				self.notify(True)
 				return StateAboutToOpen(self.state_machine)
 		def handle_open_event(self,callback):
+			# FIXME: 202 notification also here if possible
 			self.callbacks.append(callback)
 		def handle_wakeup_event(self):
 			over = time.time() - self.time_entered
@@ -116,32 +127,88 @@ class StateMachine():
 					self.actor().act(Actor.CMD_OPEN)
 					self.tries += 1
 				else:
-					#TODO: LOG ERROR und EMAIL an Admins
+					logger.critical("Couldn't open door after %d tries. Going back to StateZu." % OPEN_REPEAT_NUMBER)
 					self.notify(False)
 					return StateZu(self.state_machine)
 	
-	class StateAboutToOpen(State):
+	class AbstractStateWhereOpeningIsRedundant(State):
+		def __init__ (self,sm):
+			State.__init__(sm):
+		def handle_open_event(self, callback):
+			callback("299 redundant: Space seems to be already open. Still processing your request tough.")
+			logger.warning("Received OPEN command in StateAboutToOpen. This should not be necessary.")
+			self.actor().act(Actor.CMD_OPEN)
+	
+	class StateAboutToOpen(AbstractStateWhereOpeningIsRedundant):
 		def __init__(self, sm):
-			State.__init__(sm)
+			AbstractStateWhereOpeningIsRedundant.__init__(sm)
 		def handle_pins_event(self):
 			pins = self.pins()
 			if pins.door_locked:
 				return StateZu(self.state_machine)
 			elif pins.space_active:
 				return StateAuf(self.state_machine)
-			else:
-				over = time.time() - self.time_entered
-				# TODO: Nerv
-				logger.debug("AboutToOpen since %f seconds. TODO: nerv the user" % over)
-		# TODO Conny
+		def handle_wakeup_event(self):
+			now = time.time()
+			lasttime = self.last_wakeup - self.time_entered
+			thistime = now - self.time_entered
+			for (t,f) in filter(lambda (t,f): t<=thistime and t>lasttime, ABOUTOPEN_NERVLIST):
+				ret = f();
+				if ret is not None:
+					return ret
 	
-	class StateAuf(State):
-		#TODO Conny
-		pass
+	class StateAuf(AbstractStateWhereOpeningIsRedundant):
+		def __init__(self,sm):
+			AbstractStateWhereOpeningIsRedundant.__init__(sm)
+			self.last_buzzed = None
+		def handle_pins_event(self):
+			pins = self.pins()
+			if pins.bell_ringing:
+				now = time.time()
+				if self.last_buzzed is None or now-self.last_buzzed < AUF_BELLBUZZ_REPEAT_TIME:
+					logger.info("buzzing because of bell ringing in state auf")
+					self.actor().act(Actor.CMD_BUZZ)
+					self.last_buzzed = now
+			if not pins.space_active:
+				logger.info("space switch off - starting leaving procedure")
+				return StateAboutToLeave(self.state_machine)
+			if pins.door_locked:
+				logger.error("door manually locked, but space switch on - going to StateZu")
+				play_sound("manual_lock")
+				return StateZu(self.state_machine)
+		# handle_wakeup_event intentionally not overwritten
 	
 	class StateClosing(State):
-		#TODO Ralf/Conny
-		pass
+		# TODO: share code with StateOpening, and possibly also with the nerv-mechanism from StateAboutToOpen
+		def __init__(self,callback,sm):
+			State.__init__(self,sm)
+			self.callbacks=[callback]
+			# FIXME: can we send "202 processing: Trying to close the door" here? Are the callbacks multi-use?
+			self.tries = 0
+			self.actor().act(Actor.CMD_CLOSE)
+		def notify(self, did_it_work):
+			s = "200 okay: door closed" if did_it_work else ("500 internal server error: Couldn't close door with %d tries à %f seconds" % (CLOSE_REPEAT_NUMBER,CLOSE_REPEAT_TIMEOUT))
+			for cb in self.callbacks:
+				if cb is not None:
+					cb(s)
+		def handle_pins_event(self):
+			pins = self.pins()
+			if not pins.door_locked:
+				self.notify(True)
+				return StateAboutToOpen(self.state_machine)
+		def handle_open_event(self,callback):
+			callback("409 conflict: The server is currently trying to close the door. Try again later.")
+		def handle_wakeup_event(self):
+			over = time.time() - self.time_entered
+			nexttry = (self.tries+1) * CLOSE_REPEAT_TIMEOUT
+			if over > nexttry:
+				if self.tries < CLOSE_REPEAT_NUMBER:
+					self.actor().act(Actor.CMD_CLOSE)
+					self.tries += 1
+				else:
+					logger.critical("Couldn't close door after %d tries. Going back to StateAboutToOpen." % CLOSE_REPEAT_NUMBER)
+					self.notify(False)
+					return StateAboutToOpen(self.state_machine)
 	
 	class StateAboutToLeave(State):
 		#TODO Ralf
@@ -154,8 +221,9 @@ class StateMachine():
 	def __init__(self, actor):
 		self.actor = actor
 		self.callback = ThreadFunction(self._callback)
-		self.current_state = None
+		self.current_state = StateStart(self)
 		self.pins = None
+		self.old_pins = None
 	
 	def stop (self):
 		self.callback.stop()
@@ -163,6 +231,7 @@ class StateMachine():
 	def _callback(self, cmd, arg=None):
 		# update pins
 		if cmd == StateMachine.CMD_PINS:
+			self.old_pins = self.pins
 			self.pins = arg
 		# handle stuff
 		newstate = self.current_state.handle_event(cmd,arg) # returns None or an instance of the new state