Elevator Implementation with Threads

elevator.py

import time
import threading

class Elevator:
    def __init__(self, control, timer=Timer(), eventlog=EventLog()):
        self.control = control
        self.timer = timer
        self.eventlog = eventlog

        #Python thinks it's a dict if you
        #initialize an empty set
        self.floors_to_visit = {1}
        self.floors_to_visit.remove(1)

        self.min_floor = 1
        self.max_floor = 1
        self.current_floor = 1
        self.action_log = []
        self.on= True

        threading.Timer(self.timer.interval, self.keep_it_moving).start()

    def go_to_floor(self, floor):
        self.log(f"Stop requested for floor {floor}")
        self.floors_to_visit.add(floor)
        self.max_floor = max(self.floors_to_visit)
        self.min_floor = min(self.floors_to_visit)

    def keep_it_moving(self):
        if self.floors_to_visit:
            if len(self.floors_to_visit) == 1 and self.current_floor in self.floors_to_visit:
                self.floors_to_visit.remove(self.current_floor)
                self.open_doors()
                time.sleep(self.timer.interval)
            elif self.max_floor > self.current_floor:
                self.up_1_floor()
            else:
                self.down_1_floor()
        if self.on:
            threading.Timer(self.timer.interval, self.keep_it_moving).start()

    def up_1_floor(self):
        self.control.hoist_motor("up")
        self.current_floor += 1
        self.log(message=f"On floor {self.current_floor}")

        self.handle_making_a_stop()

    def down_1_floor(self):
        self.control.hoist_motor("down")
        self.current_floor -= 1
        self.log(f"On floor {self.current_floor}")
        self.handle_making_a_stop()

    def handle_making_a_stop(self):
        if self.current_floor in self.floors_to_visit:
            self.log(f"Stopping at floor {self.current_floor}")

            self.stop()

            self.open_doors()
            self.floors_to_visit.remove(self.current_floor)
            if self.floors_to_visit:
                self.max_floor = max(self.floors_to_visit)
                self.min_floor = min(self.floors_to_visit)

    def stop(self):
        self.control.stop_motor()

    def open_doors(self):
        self.log(f"Opening doors at floor {self.current_floor}")
        self.control.open_door()
        self.log(f"DOORS CLOSING")
        self.control.close_door()

    def log(self, message):
        self.action_log.append(message)
        self.eventlog.register(message)
        print(message)