import abc
from utils.value import AttributeChange


class APid(AttributeChange):
	def __init__(self):
		AttributeChange.__init__(self)

	@abc.abstractmethod
	def set_theta_soll(self, value):
		return None

	@abc.abstractmethod
	def set_heatrate_soll(self, value):
		return None

	@abc.abstractmethod
	def get_theta_ist(self):
		return None

	@abc.abstractmethod
	def get_heatrate_ist(self):
		return None

	@abc.abstractmethod
	def get_theta_soll_set(self):
		return None

	@abc.abstractmethod
	def get_theta_soll(self):
		return None

	@abc.abstractmethod
	def get_heatrate_soll_set(self):
		return None

	@abc.abstractmethod
	def get_heatrate_soll(self):
		return None

	@abc.abstractmethod
	def process(self):
		pass

	@abc.abstractmethod
	def is_holding(self):
		"""Whether the controller's own gap-tracking FSM considers
		theta_ist close enough to theta_soll_set to no longer be
		actively ramping toward it."""
		return None