import firebase_admin, threading
from firebase_admin import credentials
from firebase_admin import firestore

class Light:
	def __init__(self):
		self.state = False
		self.brightness = 0
		self.colour = '000000'
		self.cred = credentials.Certificate("secrets/de-iot-firebase-adminsdk-puz9e-7388634d69.json")
		firebase_admin.initialize_app(self.cred)
		self.db = firestore.client()
		self.callback_done = threading.Event()
		self.apiMonitor()

	def apiMonitor(self):
		self.doc_ref = self.db.collection(u'apiData').document(u'light')
		self.doc_watch = self.doc_ref.on_snapshot(self.on_snapshot)

	def on_snapshot(self, doc_snapshot, changes, read_time):
		for doc in doc_snapshot:
			if doc.id == 'light':
				print('|')
				doc = doc.to_dict()
				state = doc['isOn']
				brightness = doc['brightness']
				colour = doc['color']
				self.update(state=state, brightness=brightness, colour=colour)
		self.callback_done.set()


	def update(self, state=False, brightness=0, colour='000000'):
		self.state = state
		self.brightness = brightness
		self.colour = colour
		self.updateHW()

	def updateHW(self):
		print("Sending HW state: " + str(self.state))
		self.changeState(self.state)
		print("Sending HW brightness: " + str(self.state))
		self.changeBrightness(self.brightness)
		print("Sending HW colour: " + str(self.state))
		self.changeColour(self.colour)

	def changeState(self, state):
		print("Toggling FET to: " + str(self.state))

	def changeBrightness(self, brightness):
		print("Toggling Brightness PWM to: " + str(brightness))

	def changeColour(self, colour):
		print("Toggling Colour to RGB: ", tuple(int(colour[i:i+2], 16) for i in (0, 2, 4)))

light = Light()

while True:
	pass