'Return current operation ie. heat, cool, idle.'

@property
def current_operation(self):

    if (not self.wink.is_on()):
        current_op = STATE_OFF
    elif (self.wink.current_hvac_mode() == 'cool_only'):
        current_op = STATE_COOL
    elif (self.wink.current_hvac_mode() == 'heat_only'):
        current_op = STATE_HEAT
    elif (self.wink.current_hvac_mode() == 'aux'):
        current_op = STATE_HEAT
    elif (self.wink.current_hvac_mode() == 'auto'):
        current_op = STATE_AUTO
    elif (self.wink.current_hvac_mode() == 'eco'):
        current_op = STATE_ECO
    else:
        current_op = STATE_UNKNOWN
    return current_op
