I'm running into a wall trying to figure out why and intersection of a Span
and a SpanSet isn't coming out the way I'm expecting and am being stymied
by the opacity of DateTimes in general.
In broad terms, I'm doing something like this:
$span = DateTime::Span->from_datetimes(
start => DateTime->from_epoch(epoch=>$this->start_time),
before => DateTime->from_epoch(epoch=>$this->end_time)
)->set_time_zone('America/New_York');
The SpanSet is a constructed by taking
DateTime::SpanSet->empty_set->complement and intersecting with it things
like:
DateTime::SpanSet->from_set_and_duration(
set => DateTime::Event::Recurrence->daily( hours => $min),
hours => $max-$min,
minutes => 59,
seconds => 59
)->set_time_zone('America/New_York');
...and:
DateTime::SpanSet->from_set_and_duration(
set => DateTime::Set->from_recurrence(
recurrence => sub {
my ($dt) = @_;
return $dt->truncate(to => 'day')
->add(days => ($min-$dt->wday()+7-1) %
7 + 1);
},
),
days => $max-$min,
hours => 23,
minutes => 59,
seconds => 59
)->set_time_zone('America/New_York');
The spanset and span seem to be what I'm expecting, but the intersection
keeps coming out as undefined. What tools exist to help dig into this?
