def get_daychunks(day):
"""
Given a DateTimeTZRange day returns a list of "daychunks" which are
DateTimeTZRanges of length settings.SPEAKER_AVAILABILITY_DAYCHUNK_HOURS
starting from day.lower. If day.lower is midnight and day.upper is 10 AM and
settings.SPEAKER_AVAILABILITY_DAYCHUNK_HOURS=2 then a list of 5 daychunks
would be returned.
"""
chunks = []
daychunk = DateTimeTZRange(
day.lower,
day.lower +
timedelta(hours=settings.SPEAKER_AVAILABILITY_DAYCHUNK_HOURS),
)
i = 0
while daychunk.upper < day.upper:
# append this chunk
chunks.append(daychunk)
# increase our counter
i += 1
daychunk = DateTimeTZRange(
day.lower +
timedelta(hours=settings.SPEAKER_AVAILABILITY_DAYCHUNK_HOURS * i),
day.lower +
timedelta(hours=settings.SPEAKER_AVAILABILITY_DAYCHUNK_HOURS *
(i + 1)),
)
# cap the final chunk to be equal to the end of the day
if daychunk.upper > day.upper:
daychunk.upper = day.upper
# append the final chunk and return
chunks.append(daychunk)
return chunks
