from components.aplant import APlant


class Pot(APlant):
	def __init__(self, params, theta_amb=20):
		APlant.__init__(self)
		self.dt = params['dt']
		self.alpha = 1.0

		self.e = 0
		self.x = 0
		self.gain = 0.999

		self.C = params['C']
		self.M = params['M']
		self.L = params['L']
		self.Td = params['Td']
		self.kn = params['kn']
		self.temp = params['theta']

		self.theta_amb = theta_amb
		self.alpha = self.dt / 1
		self.alpha_delay = self.dt/self.Td if self.Td > 0 else 1

		self.power_set = 0
		self.power_actual = 0

	def activate(self, enable):
		pass

	def process(self):
		# Delay
		self.power_actual = (1-self.alpha_delay) * self.power_actual + self.alpha_delay * self.power_set

		leak = 1/self.M * self.L * (self.theta_amb - self.temp)/self.theta_amb
		self.temp += (self.power_actual / (self.M * self.C) + leak) * self.dt

	def is_activated(self):
		return True

	def set_power(self, power):
		self.power_set = power

	def get_power(self):
		return round(self.power_actual, 1)

	def get_temperature(self):
		return self.temp