NAME
    DateTime::Schedule - Determine scheduled days in range based on
    exclusions

SYNOPSIS
      use DateTime::Schedule;

      my $dts = DateTime::Schedule->new(exclude => [
        DateTime->new(year => 2024, month => 01, day => 01),
        DateTime->new(year => 2024, month => 07, day => 04),
        DateTime->new(year => 2024, month => 12, day => 25)
      ]);

      my $start = DateTime->new(year => 2024, month => 1, day => 1);
      my $end = DateTime->new(year => 2024, month => 12, day => 31);
      print $dts->days_in_range($start, $end)->count; # 363

DESCRIPTION
    This is a simple class that allows you to find out which days are
    "scheduled" between a start date and an end date. For instance, given
    the start date of a school year, and the current date, and with all
    school holidays entered as "exclude"d, this can tell you how many school
    days have elapsed in the year.

CONSTRUCTORS
  new
    Default constructor. Returns a new DateTime::Schedule instance.

    Parameters:

   portion
    *Optional*. Default 1.

    A number between 0 and 1 indicating how much of a day must elapse to be
    included/excluded at the boundaries of the range.

   exclude
    *Optional*. Default "[]"

    An arrayref of DateTimes. These days are exclusions to the normal
    schedule (e.g., holidays). Any time-portion of the DateTimes is ignored.

METHODS
  is_day_scheduled($datetime)
    Given a DateTime, returns true/false to indicate whether that day is
    scheduled or not.

    Should be overridden by subclasses.

  days_in_range($start, $end)
    Given start/end DateTimes, returns a DateTime::Set of all the days which
    are scheduled (i.e., not excluded)

AUTHOR
    Mark Tyrrell "<mark@tyrrminal.dev>"

LICENSE
    Copyright (c) 2024 Mark Tyrrell

    Permission is hereby granted, free of charge, to any person obtaining a
    copy of this software and associated documentation files (the
    "Software"), to deal in the Software without restriction, including
    without limitation the rights to use, copy, modify, merge, publish,
    distribute, sublicense, and/or sell copies of the Software, and to
    permit persons to whom the Software is furnished to do so, subject to
    the following conditions:

    The above copyright notice and this permission notice shall be included
    in all copies or substantial portions of the Software.

    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
    IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
    CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
    TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
    SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.