class BoilingControll(object):
def __init__(self, process):
self.hop_order = process.recipe.get_hop_order()
process.actual_hop = Hop.objects.get(pk=self.hop_order.get("1"))
process.save()
self.process = process
self.serial_comunication = SerialCalls()
def handle_states(self):
state = self.process.state
if state == STATES.get("warm_must"):
logger.info("[Boiling] Function defined: warm_must")
self.warm_must()
elif state == STATES.get("add_hops"):
logger.info("[Boiling] Function defined: add_hops")
self.add_hops()
elif state == STATES.get("continue_boiling"):
logger.info("[Boiling] Function defined: continue_boiling")
self.continue_boiling()
def warm_must(self):
temperature = ThermalSensor.get_current_temperature()
logger.info("[Boiling] Temperature: %.2f" % temperature)
if temperature < self.process.recipe.boiling_temperature:
logger.info("[Boiling] Temperature less than actual " "heat temperature")
self.serial_comunication.turn_on_resistor()
else:
logger.info("[Boiling] Temperature reached!")
self.process.state = STATES.get("add_hops")
self.process.boiling_stop_time = timezone.now() + timedelta(minutes=self.process.recipe.boiling_duration)
logger.info("[Boining] State changed! New state: add_hops")
self.process.save()
def add_hops(self):
if self.process.change_hop():
self.serial_comunication.add_hop(self.process.next_hop)
logger.info("[Boiling] Hop has been added to the pot!")
if self.check_next():
hops = Hop.objects.get(pk=self.get_next_hop())
self.process.next_hop += 1
self.process.actual_hop = hops
self.process.state = STATES.get("add_hops")
logger.info("[Boiling] State changed! New state: add_hops")
else:
self.process.state = STATES.get("continue_boiling")
logger.info("[Boiling] State changed! " "New state: continue_boiling")
self.process.save()
def continue_boiling(self):
if self.check_boiling_time_reached():
logger.info("[Boiling] Boiling stage completed!" "New state: turn_on_chiller")
self.process.state = cooling.STATES.get("turn_on_chiller")
self.serial_comunication.turn_off_resistor(2)
self.process.save()
def check_next(self):
if self.process.next_hop <= len(self.hop_order):
return True
else:
return False
def get_next_hop(self):
next_hop = self.process.next_hop
return self.hop_order.get(str(next_hop))
def check_boiling_time_reached(self):
now = timezone.now()
if now >= self.process.boiling_stop_time:
return True
else:
return False
