import config as cfg
from collections import Iterable

# trick the pycharm type-checker into thinking Callable is in scope, not used at runtime
# noinspection PyUnreachableCode
if False:
	from typing import Callable


class LedState(object):
	"""
	from page 6 of the '48TLxxx ModBus Protocol doc'
	"""
	off = 0
	on = 1
	blinking_slow = 2
	blinking_fast = 3


class LedColor(object):
	green = 0
	amber = 1
	blue = 2
	red = 3



class CsvSignal(object):
	def __init__(self, name, get_value, get_text = None):
		self.name = name
		self.get_value = get_value if callable(get_value) else lambda _: get_value
		self.get_text = get_text

		if get_text is None:
			self.get_text = ""

class Battery(object):

	""" Data record to hold hardware and firmware specs of the battery """

	def __init__(self, slave_address, hardware_version, firmware_version, bms_version, ampere_hours):
		# type: (int, str, str, str, int) -> None
		self.slave_address = slave_address
		self.hardware_version = hardware_version
		self.firmware_version = firmware_version
		self.bms_version = bms_version
		self.ampere_hours = ampere_hours


	def __str__(self):
		return 'slave address = {0}\nhardware version = {1}\nfirmware version = {2}\nbms version = {3}\nampere hours = {4}'.format(
			self.slave_address, self.hardware_version, self.firmware_version, self.bms_version, str(self.ampere_hours))


class BatteryStatus(object):
	"""
	record holding the current status of a battery
	"""
	def __init__(self, battery, modbus_data):
		# type: (Battery, list[int]) -> None

		self.battery = battery
		self.modbus_data = modbus_data