Send push notifications when a Prusa printer needs attention

prusa_notify.py

import datetime
import requests
import time

from tqdm import tqdm


class PrintMonitor:
    # !!! ADD CONFIGURATION !!! #
    # See https://help.prusa3d.com/guide/wi-fi-and-prusalink-setup-xl-firmware-up-to-4-7-5_419630
    printer = '10.0.0.1'
    printer_user = 'maker'
    printer_password = 'XXXXXXXXXXXXXXX'
    # See https://pushover.net/api
    pushover_token = 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
    pushover_user = 'uuuuuuuuuuuuuuuuuuuuuuuuuuuuuu'
    priority = {'priority': 2, 'retry': 30, 'expire': 600}
    # !!! ENJOY ;) !!! #
    
    EVENTS = ['PAUSED', 'FINISHED']

    progress = 0
    timer = None
    bar = {'total': 100, 'bar_format': '{l_bar}{bar}|'}

    last_notification = None

    def update(self):
        printer = f'http://{self.printer}/api/v1/status'
        printer_auth = requests.auth.HTTPDigestAuth(self.printer_user, self.printer_password)
        response = requests.get(printer, auth=printer_auth)

        if not response.ok:
            print(response, response.text)
            return

        status = response.json()
        self.state = status['printer']['state']

        if self.state in self.EVENTS and self.last_notification != self.progress:
            self.last_notification = self.progress
            self.notify(self.state)

        if job := status.get('job', None):
            self.progress = job['progress']
            change_in = job.get('filament_change_in', None)
            done_in = job.get('time_remaining', None)
            if change_in:
                self.state += f' (change in {datetime.timedelta(seconds=change_in)})'
            elif done_in:
                self.state += f' (done in {datetime.timedelta(seconds=done_in)})'

    def notify(self, message):
        phone = 'https://api.pushover.net/1/messages.json'
        auth = {'user': self.pushover_user, 'token': self.pushover_token}
        data = {'message': message}
        response = requests.post(phone, json={**auth, **data, **self.priority})
        print(message, response, response.json())

    def start(self):
        while True:
            last_tick = self.progress

            self.update()

            if self.progress < last_tick or self.timer is None:
                self.timer = tqdm(desc=self.state, initial=self.progress, **self.bar)
                last_tick = self.progress

            self.timer.set_description(self.state)

            if self.progress > last_tick:
                self.timer.update(self.progress - last_tick)

            # TODO: Use job.filament_change_in to sleep longer?
            time.sleep(10)


if __name__ == '__main__':
    PrintMonitor().start()