craftbeerpi4-pione/cbpi/api/timer.py

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2021-02-10 07:38:55 +01:00
import time
import asyncio
import math
class Timer(object):
def __init__(self, timeout, callback, update = None) -> None:
super().__init__()
self.timeout = timeout
self._timemout = self.timeout
self._task = None
self._callback = callback
self._update = update
self.start_time = None
async def _job(self):
self.start_time = time.time()
self.count = int(round(self._timemout, 0))
try:
for seconds in range(self.count, -1, -1):
if self._update is not None:
await self._update(seconds, self.format_time(seconds))
await asyncio.sleep(1)
self._callback()
except asyncio.CancelledError:
end = time.time()
duration = end - self.start_time
self._timemout = self._timemout - duration
def start(self):
self._task = asyncio.create_task(self._job())
async def stop(self):
self._task.cancel()
await self._task
def reset(self):
if self.is_running is True:
return
self._timemout = self.timeout
def is_running(self):
return not self._task.done()
def set_time(self,timeout):
if self.is_running is True:
return
self.timeout = timeout
def get_time(self):
return self.format_time(int(round(self._timemout,0)))
def format_time(self, time):
pattern = '{0:02d}:{1:02d}:{2:02d}'
seconds = time % 60
minutes = math.floor(time / 60) % 60
hours = math.floor(time / 3600)
return pattern.format(hours, minutes, seconds)