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Fixed negative sleep_time error

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Maximilian Giller 2019-03-24 21:35:05 +01:00
parent 94591ec51e
commit 319e6947b1
1 changed files with 16 additions and 11 deletions
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27
Calendar/LoopTimer.py
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@ -1,34 +1,36 @@
from datetime import datetime, timedelta from datetime import datetime, timedelta
class LoopTimer(object): min_sleep_minutes = 0
class LoopTimer (object):
"""Manages loop times and sleeps until """Manages loop times and sleeps until
next loop.""" next loop."""
def __init__(self, loop_interval, run_on_hour=False): def __init__ (self, loop_interval, run_on_hour = False):
self.interval = int(str(loop_interval)) self.interval = int(str(loop_interval))
self.on_hour = run_on_hour self.on_hour = run_on_hour
self.loop_history = [] self.loop_history = []
def begin_loop(self): def begin_loop (self):
begin_time = datetime.now() begin_time = datetime.now()
print('\n_________Starting new loop___________') print('\n_________Starting new loop___________')
print('Date: ' + begin_time.strftime('%a %d %b %y') + ', time: ' + begin_time.strftime('%H:%M') + '\n') print('Date: ' + begin_time.strftime('%a %d %b %y') + ', time: ' + begin_time.strftime('%H:%M') + '\n')
self.__add_beginning__(begin_time) self.__add_beginning__(begin_time)
def __add_beginning__(self, time): def __add_beginning__ (self, time):
self.loop_history.append((time,)) self.loop_history.append((time,))
def __add_ending__(self, time): def __add_ending__ (self, time):
current = self.get_current() current = self.get_current()
self.loop_history[-1] = (current[0], time) self.loop_history[-1] = (current[0], time)
def end_loop(self): def end_loop (self):
end_time = datetime.now() end_time = datetime.now()
self.__add_ending__(end_time) self.__add_ending__(end_time)
def get_current(self): def get_current (self):
return self.loop_history[-1] return self.loop_history[-1]
def time_until_next(self): def time_until_next (self):
interval_duration = timedelta(minutes=self.interval) interval_duration = timedelta(minutes=self.interval)
loop_duration = self.get_last_duration() loop_duration = self.get_last_duration()
sleep_time = interval_duration - loop_duration sleep_time = interval_duration - loop_duration
@ -36,21 +38,24 @@ class LoopTimer(object):
time_until_hour = self.get_time_to_next_hour() time_until_hour = self.get_time_to_next_hour()
if time_until_hour < sleep_time: if time_until_hour < sleep_time:
return time_until_hour return time_until_hour
if sleep_time < timedelta(0):
sleep_time = timedelta(0, 0, 0, 0, min_sleep_minutes)
return sleep_time return sleep_time
def get_last_duration(self): def get_last_duration (self):
if len(self.loop_history) == 0: if len(self.loop_history) == 0:
return return
begin, end = self.loop_history[-1] begin, end = self.loop_history[-1]
return end - begin return end - begin
def get_time_to_next_hour(self): def get_time_to_next_hour (self):
cur = datetime.now() cur = datetime.now()
rounded = datetime(cur.year, cur.month, cur.day, cur.hour) rounded = datetime(cur.year, cur.month, cur.day, cur.hour)
next_hour_time = rounded + timedelta(hours=1) next_hour_time = rounded + timedelta(hours=1)
return next_hour_time - datetime.now() return next_hour_time - datetime.now()
def is_new_hour_loop(self): def is_new_hour_loop (self):
if len(self.loop_history) < 2: if len(self.loop_history) < 2:
return False return False
previous_loop = self.loop_history[-2] previous_loop = self.loop_history[-2]