### controller.py
### Author: Matthew Reed

import sys
import time
import signal
import logging
import threading
import configparser
from enum import Enum

from evdev import InputDevice, categorize, ecodes
import asyncio
from select import select

class Controller:

    def __init__(self, config):
        self.config = config
        self.connect()
        
    def connect(self):
        try:
            self.dev = InputDevice('/dev/input/event0')
        except FileNotFoundError:
            self.dev = None
        except PermissionError:
            self.dev = None
        
    def read_input(self):
        
        if self.dev == None:
            self.connect()
        
        events = []
        if self.dev != None:
            try:
                for event in self.dev.read():
                    events.append(event)
            except BlockingIOError:
                pass
            except OSError:
                self.dev = None
            
        return events