Merge branch 'master' of ralfj.de:saartuer

[saartuer.git] / statemachine.py

diff --git a/statemachine.py b/statemachine.py
index c73bea0321c0f42dd99350fc09f10e45e2c4e057..a3c4affb860ed23733d41fbef7f4868f22c9889e 100644 (file)
--- a/statemachine.py
+++ b/statemachine.py
@@ -1,6 +1,6 @@
 from libtuer import ThreadFunction, logger, fire_and_forget
 from actor import Actor
-import os, random, time
+import os, random, time, threading
 
 # logger.{debug,info,warning,error,critical}
 
@@ -22,6 +22,10 @@ OPEN_REPEAT_NUMBER = 3
 CLOSE_REPEAT_TIMEOUT = 7
 CLOSE_REPEAT_NUMBER = 3
 
+# StateFallback constants
+FALLBACK_BLINK_SPEED = 0.5 # seconds
+FALLBACK_LEAVE_DELAY_LOCK = 5 # seconds
+
 # StateAboutToOpen constants
 ABOUTOPEN_NERVLIST = [(5, lambda : play_sound("flipswitch")), (5, lambda:play_sound("flipswitch")), (0, lambda:logger.warning("Space open but switch not flipped for 10 seconds")),\
        (10, lambda:play_sound("flipswitch")), (10, lambda:play_sound("flipswitch")), (0, lambda:logger.error("Space open but switch not flipped for 30 seconds")),\
@@ -133,9 +137,15 @@ class StateMachine():
                        return super().handle_pins_event()
        
        class StateStart(State):
+               def __init__(self, sm, nervlist = None, fallback=False):
+                       super().__init__(self, sm, nervlist)
+                       self.fallback = fallback
                def handle_pins_event(self):
                        pins = self.pins()
                        if not (pins.door_locked is None or pins.door_closed is None or pins.space_active is None or pins.bell_ringing is None):
+                               if self.fallback:
+                                       logger.info("Going to StateFallback because running in fallback mode")
+                                       return StateMachine.StateFallback(self.state_machine)
                                if pins.door_locked:
                                        logger.info("All sensors got a value, switching to a proper state: Space is closed")
                                        return StateMachine.StateZu(self.state_machine)
@@ -144,6 +154,46 @@ class StateMachine():
                                        return StateMachine.StateAboutToOpen(self.state_machine)
                        return super().handle_pins_event()
        
+       class StateFallback(State):
+               def __init__(self, sm, nervlist = None):
+                       super().__init__(self, sm, nervlist)
+                       self._last_blink_time = time.time()
+                       self._red_state = False
+               def handle_pins_event(self):
+                       pins = self.pins()
+                       # buzz if open and bell rang
+                       if pins.space_active and pins.bell_ringing and not self.old_pins().bell_ringing:
+                               logger.info("StateFallback: Space switch on and door bell rung => buzzing")
+                               self.actor().act(Actor.CMD_BUZZ)
+                       # set green LED according to space switch
+                       if pins.space_active:
+                               self.actor().act(Actor.CMD_GREEN_ON)
+                       else:
+                               self.actor().act(Actor.CMD_GREEN_OFF)
+                       # primitive leaving procedure if space switch turned off
+                       if not pins.space_active and self.old_pins().space_active:
+                               def _close_after_time():
+                                       time.sleep(FALLBACK_LEAVE_DELAY_LOCK)
+                                       self.actor().act(Actor.CMD_LOCK)
+                               t = threading.Thread(target=_close_after_time)
+                               t.start()
+                       # not calling superclass because we want to stay in fallback mode
+               def handle_wakeup_event(self):
+                       # blink red LED
+                       now = time.time()
+                       if now - self._last_blink_time < FALLBACK_BLINK_SPEED:
+                               if self._red_state:
+                                       self.actor().act(Actor.CMD_RED_OFF)
+                                       self._red_state = False
+                               else:
+                                       self.actor().act(Actor.CMD_RED_ON)
+                                       self._red_state = True
+                               self._last_blink_time = now
+               def handle_cmd_unlock_event(self,arg):
+                       if arg is not None:
+                               arg("298 Fallback Okay: Trying to unlock the door. The System is in fallback mode, success information is not available.")
+                       self.actor().act(Actor.CMD_UNLOCK)
+       
        class StateZu(AbstractLockedState):
                def handle_cmd_unlock_event(self,callback):
                        return StateMachine.StateUnlocking(self.state_machine, callback)
@@ -255,10 +305,10 @@ class StateMachine():
                                return StateMachine.StateAuf(self.state_machine)
                        return super().handle_pins_event()
        
-       def __init__(self, actor):
+       def __init__(self, actor, fallback = False):
                self.actor = actor
                self.callback = ThreadFunction(self._callback, name="StateMachine")
-               self.current_state = StateMachine.StateStart(self)
+               self.current_state = StateMachine.StateStart(self, fallback)
                self.pins = None
                self.old_pins = None