"""\
SensorProtocol.py : application-specific class to manage serial communication with an Arduino sketch reporting sensor data.

Copyright (c) 2015-2017, Garth Zeglin.  All rights reserved. Licensed under the terms
of the BSD 3-clause license.
"""

#================================================================
from __future__ import print_function
import time
from .ArduinoProtocol import ArduinoProtocol

#================================================================
class SensorProtocol(ArduinoProtocol):
    """Example class to communicate with an Arduino sketch which reports lists of numbers.
    """

    def __init__(self, **kwargs ):

        # initialize the parent class
        ArduinoProtocol.__init__(self, **kwargs)

        # define attributes to hold sensor and status values
        self.values = list()          #: List of the most recent values received.
        return

    def message_received(self, tokens):
        """Application-specific message processing to parse lists of tokens received
        from the Arduino sketch.  This implementation just converts every token
        to a number and stores them in a list in an instance attribute.  This
        method overrides the null implementation in the parent class.

        :param tokens: list of string tokens
        """

        # Assume all messages are a list of numbers.
        self.values = [float(token) for token in tokens]
        return

    ################################################################