alarmpi.py

#! /usr/bin/python

import logging
import sys

log = logging.getLogger('root')
log.setLevel(logging.DEBUG)

stream = logging.StreamHandler(sys.stdout)
stream.setLevel(logging.DEBUG)

formatter = logging.Formatter('[%(asctime)s] %(levelname)8s %(module)15s: %(message)s')
stream.setFormatter(formatter)

log.addHandler(stream)

import time
import datetime
import pytz
import threading
import ClockThread
import AlarmThread
import LcdThread
import BrightnessThread
import Settings
import MediaPlayer
from Web import WebApplication
from Weather import WeatherFetcher


class AlarmPi:
    def __init__(self):
        self.stopping = False

    def stop(self):
        self.stopping = True

    def execute(self):
        log.info("Starting up AlarmPi")

        log.debug("Loading settings")
        settings = Settings.Settings()
        settings.setup()

        log.debug("Loading weather")
        weather = WeatherFetcher()

        log.debug("Loading media")
        media = MediaPlayer.MediaPlayer()
        media.playVoice('Starting up')

        log.debug("Loading clock")
        clock = ClockThread.ClockThread()
        clock.setDaemon(True)

        log.debug("Loading alarm control")
        alarm = AlarmThread.AlarmThread(weather)
        alarm.setDaemon(True)

        log.debug("Loading LCD")
        lcd = LcdThread.LcdThread(alarm, self.stop, weather)
        lcd.setDaemon(True)
        lcd.start()

        log.debug("Loading brightness control")
        bright = BrightnessThread.BrightnessThread()
        bright.setDaemon(True)
        bright.registerControlObject(clock.segment.disp)
        bright.registerControlObject(lcd)
        bright.start()

        # If there's a manual alarm time set in the database, then load it
        manual = settings.getInt('manual_alarm')
        if manual == 0 or manual is None:
            alarm.autoSetAlarm()
        else:
            alarmTime = datetime.datetime.fromtimestamp(manual, pytz.timezone('Africa/Johannesburg'))
            log.info("Loaded previously set manual alarm time of %s", alarmTime)
            alarm.manualSetAlarm(alarmTime)

        log.debug("Starting clock")
        clock.start()

        log.debug("Starting alarm control")
        alarm.start()

        log.debug("Starting web application")
        web = WebApplication(alarm)
        web.setDaemon(True)
        web.start()

        # Main loop where we just spin until we receive a shutdown request
        try:
            while (self.stopping is False):
                time.sleep(1)
        except (KeyboardInterrupt, SystemExit):
            log.warn("Interrupted, shutting down")

        log.warn("Shutting down")
        media.playVoice('Shutting down. Goodbye Andrew')
        time.sleep(2)

        log.info("Stopping all services")
        web.stop()
        alarm.stop()
        clock.stop()
        lcd.stop()
        bright.stop()

        log.info("Shutdown complete, now exiting")

        time.sleep(2) # To give threads time to shut down


alarm = AlarmPi()
alarm.execute()