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service
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#!/usr/bin/python
import os
import re
import traceback
import threading
import time
import json
import sys
import pytz
from calendar import timegm
from datetime import datetime, timedelta
from select import select
from evdev import ecodes, InputDevice, list_devices
from evdev.events import KeyEvent
from hosted import config, node, device
from ibquery import InfoBeamerQuery
config.restart_on_update()
if config.timezone == 'device':
schedule_tz = config.metadata_timezone
else:
schedule_tz = pytz.timezone(config.timezone)
def iter_tiles(types=None):
for schedule in config.schedules:
for page in schedule['pages']:
for tile in page['tiles']:
if not types or tile['type'] in types:
yield tile
for layout in config.layouts:
for tile in layout['tiles']:
if not types or tile['type'] in types:
yield tile
all_timezones = {
schedule_tz.zone: schedule_tz,
}
for tile in iter_tiles('time'):
tile_tz = tile['config'].get('timezone')
if tile_tz:
all_timezones[tile_tz] = pytz.timezone(tile_tz)
print >>sys.stderr, all_timezones
countdowns = set()
for tile in iter_tiles('countdown'):
countdowns.add(tile['config'].get('target', ''))
print >>sys.stderr, countdowns
try:
sim_date, sim_time = config.time.strip().split()
d, m, y = sim_date.split('.')
ho, mi = sim_time.split(':')
utc_now = datetime.now(pytz.utc)
local_now = utc_now.astimezone(schedule_tz)
simulated = schedule_tz.localize(datetime(int(y), int(m), int(d), int(ho), int(mi), 00))
diff = simulated - local_now
except:
diff = timedelta()
print >>sys.stderr, "timedelta for simulation: %r" % (diff,)
devices = {}
def update_devices():
new = set(list_devices("/dev/input/"))
old = set(devices.keys())
for device_name in new - old:
devices[device_name] = InputDevice(device_name)
for device_name in old - new:
del devices[device_name]
def send_clock(tz):
utc_now = datetime.now(pytz.utc) + diff
unix = timegm(utc_now.timetuple()) + utc_now.microsecond / 1000000.
local_now = utc_now.astimezone(tz)
# print >>sys.stderr, 'local now', local_now
since_midnight = (
local_now -
local_now.replace(hour=0, minute=0, second=0, microsecond=0)
)
since_midnight = since_midnight.seconds + since_midnight.microseconds / 1000000.
monday = (local_now - timedelta(days = local_now.weekday())).replace(hour=0, minute=0, second=0, microsecond=0)
since_monday = local_now - monday
since_monday = since_monday.days * 86400 + since_monday.seconds + since_monday.microseconds / 1000000.
node['/clock/%s' % tz.zone](json.dumps(dict(
year = local_now.year,
month = local_now.month,
day = local_now.day,
unix = unix,
dow = local_now.weekday(),
since_midnight = since_midnight,
since_monday = int(since_monday),
week_hour = int(since_monday / 3600),
diff = diff.total_seconds(),
)))
def send_countdown(countdown_target):
try:
target = datetime.strptime(countdown_target, "%Y-%m-%d %H:%M:%S")
except ValueError as err:
traceback.print_exc()
return
target = schedule_tz.localize(target)
target = target.astimezone(pytz.UTC)
unix = timegm(target.timetuple())
node['/countdown'](json.dumps(dict(
target = countdown_target,
unix = unix,
)))
def device_event(event):
print >>sys.stderr, event
if event.code in ecodes.BTN:
btn = ecodes.BTN[event.code]
if not isinstance(btn, list):
btn = [btn]
for name in btn:
node.send('/event/pad:%s' % json.dumps(dict(
key = name.replace("BTN_", "pad_").lower(),
action = {
KeyEvent.key_up: "up",
KeyEvent.key_down: "down",
}[event.value],
)))
if event.type == ecodes.EV_KEY and event.code in ecodes.KEY:
node.send('/event/keyboard:%s' % json.dumps(dict(
key = ecodes.KEY[event.code].replace("KEY_", "").lower(),
action = {
KeyEvent.key_up: "up",
KeyEvent.key_down: "down",
KeyEvent.key_hold: "hold",
}[event.value],
)))
def monitor_input():
update_devices()
r, w, e = select(devices.values(), [], [], 1)
for event in r:
try:
for ev in event.read():
device_event(ev)
except IOError:
# device disconnected
pass
def send_time():
if time.time() < 10000000:
print >>sys.stderr, "too soon"
time.sleep(1)
return
for name, tz in all_timezones.iteritems():
send_clock(tz)
for target in countdowns:
send_countdown(target)
time.sleep(0.5)
def monitor_gpio():
pins = set()
for schedule in config.schedules:
for page in schedule['pages']:
key = page.get('interaction', {}).get('key', '')
m = re.match('gpio_(.*)', key)
if m:
pins.add(int(m.group(1)))
if not pins:
time.sleep(120)
return
print >>sys.stderr, "gpios active: %s" % (pins,)
for pin in pins:
device.gpio.monitor(pin)
for pin, high in device.gpio.poll_forever():
if high:
node.send('/event/gpio:%s' % json.dumps(dict(
pin = pin,
)))
def screen_toggle():
ib = InfoBeamerQuery("127.0.0.1")
con = ib.node('root/__fallback__').io(raw=True)
for line in con:
line = line.strip()
print >>sys.stderr, "screen power: %s" % (not config.poweroff or line == "1",)
# device.screen(
# on = not config.poweroff or line == "1"
# )
def run_in_thread(fn):
def wrap():
try:
while 1:
fn()
except Exception:
traceback.print_exc()
os._exit(1)
thread = threading.Thread(target=wrap)
thread.daemon = True
thread.start()
if __name__ == "__main__":
run_in_thread(send_time)
run_in_thread(screen_toggle)
run_in_thread(monitor_input)
run_in_thread(monitor_gpio)
while 1: time.sleep(1000)