import time

from RPi import GPIO

"""This module controls the Motor and Servo module.

This module provides an interface for interacting with
the motor on the Traxxas Slash using a Raspberry Pi
3B+.
"""

class MotorController:
    def __init__(self, control_pin, frequency, duty_cycle=0):
        self._duty_cycle = duty_cycle
        self._operating_frequency = frequency
        self._running = False

        GPIO.setmode(GPIO.OUT)
        GPIO.setup(self._control_pin, self._operating_frequency)
        self._control_pin = GPIO.PWM(control_pin, self._duty_cycle)

    @property
    def duty_cycle(self):
        return self._duty_cycle

    @duty_cycle.setter
    def duty_cycle(self, value):
        if value > 0 and value < 100:
            self._duty_cycle = value
            # Change the current duty cycle of the GPIO.

    def start(self):
        if self._running:
            return
        else:
            self._control_pin.start(self._duty_cycle)

    def stop(self):
        self._control_pin.stop()