#! /usr/bin/env python3

import random
import time

class remote:
	_remote_type_alias_map = {
		'fut089': 'rgb+cct'
	}
	_remote_type_parameters_map = {
		'rgbw': {
			'retries':  5,
			'delay':    0.02,
			'channels': [9, 40, 71],
			'syncword': [0x258B, 0x147A],
			'features': [
				'can_set_brightness',
				'has_brightness',
				'has_white',
				'has_color'

				'speed_down': 0x0C,
				'change_color_mode': 0x0D,
				'zone_set_brightness': 0x0E,
				'set_color':  0x0F
			}
		},
		'cct': {
			'retries':  10,
			'delay':    0.5,
			'channels': [4, 39, 74],
			'syncword': [0x55AA, 0x050A],
			'brightness_range': [0, 9],
			'temperature_output_range': [0, 9],
			'temperature_input_range':  [3000, 9000],
			'features': [
				'has_max_brightness',

		'fut020': {
			'channels': [6, 41, 76],
			'syncword': [0xAA55, 0x50A0]
		}
	}

	def __init__(self, radio, remote_type, remote_id, message_id = None, config = None):
		if not radio.initialize():
			raise ValueError('Radio initialization failed')

		# Pull in the config for this remote type
		self._config = self._get_type_parameters(remote_type)

		# Allow the user to specify some more parameters
		if config is not None:
			self._config.update(config)

		if 'retries' not in config:
			config['retries'] = 3
		if 'delay' not in config:
			config['delay'] = 0.1

		setattr(self, '_compute_button_message', getattr(self, '_compute_button_message_' + remote_type))
		setattr(self, '_parse_button_message', getattr(self, '_parse_button_message_' + remote_type))
		setattr(self, 'pair', getattr(self, '_pair_' + remote_type))
		setattr(self, 'unpair', getattr(self, '_unpair_' + remote_type))

		return config

	def _compute_button_and_zone_from_button_id(self, button_id):
		button_info = {}
		button_info['button'] = 'unknown=' + str(button_id)
		for button_name, button_value in self._config['button_map'].items():

			del button_info['zone']

		# Map the button ID to a button name
		button_id = button_message[4]
		button_info.update(self._compute_button_and_zone_from_button_id(button_id))

		return button_info

	def _pair_cct(self, zone):
		self._send_button({
			'button': 'zone_on',
			'zone': zone
		})

		# Ensure that the "on" button cannot be hit soon after
		# because it might trigger the unpair flow
		time.sleep(5)
		return True

	def _unpair_cct(self, zone):
		for retry in range(7):
			self._send_button({
				'button': 'zone_on',
				'zone': zone
			})
		return True

	def _compute_button_message_rgbw(self, button_info):
		remote_id = button_info['remote_id']
		message_id = button_info['message_id']

		# Allow setting brightness for all zones
		if button_info['button'] == 'set_brightness':

			# Compute brightness value, there are 26 brightness steps, [16, 0][31, 23]
			brightness = brightness >> 3
			brightness = 31 - ((brightness + 15) % 32)
			button_info['brightness'] = brightness

		return button_info

	def _pair_rgbw(self, zone):
		self._send_button({
			'button': 'zone_on',
			'zone': zone
		})
		return False

	def _unpair_rgbw(self, zone):
		self._send_button({
			'button': 'zone_white',
			'zone': zone
		})
		return False

	def _get_next_message_id(self):
		# Determine next message ID
		self._message_id = (self._message_id + 1) & 0xff
		return self._message_id

	def _send_button(self, button_info):

			message = {
				'button': 'zone_on',
				'zone': zone
			}

		# Increase retries and delay for on/off to ensure
		# that these important messages are delivered
		message['retries'] = 15
		message['delay'] = 0.2
		message['retries'] = self._config['retries'] * 2
		message['delay'] = self._config['delay'] * 2

		return self._send_button(message)

	def off(self, zone = None):
	def off(self, zone = None, dim = True):
		# Dim the bulbs so that when turned on they are not bright
		if dim:
			self.set_brightness(1, zone)

		if zone is None:
			message = {
				'button': 'off',
			}
		else:
			message = {
				'button': 'zone_off',
				'zone': zone
			}

		# Increase retries and delay for on/off to ensure
		# that these important messages are delivered
		message['retries'] = 15
		message['delay'] = 0.2
		message['retries'] = self._config['retries'] * 2
		message['delay'] = self._config['delay'] * 2

		return self._send_button(message)

	def max_brightness(self, zone = None):
		if 'has_max_brightness' not in self._config['features']:
			return self.set_brightness(255, zone)
			

			message = {'button': 'white'}
		else:
			message = {
				'button': 'zone_white',
				'zone': zone
			}
		return self._send_button(message)

	def pair(self, zone):
		# XXX
		return False

	def unpair(self, zone):
		# XXX
		return False