Class: OnCalendar::Condition::Minute

Inherits:
Base
  • Object
show all
Defined in:
lib/on_calendar/condition/minute.rb

Constant Summary collapse

RANGE = 
(0..59)

Instance Attribute Summary

Attributes inherited from Base

#base, #step, #wildcard

Instance Method Summary collapse

Methods inherited from Base

#distance_to_next, #initialize, #match?, range_bounds, #valid?

Constructor Details

This class inherits a constructor from OnCalendar::Condition::Base

Instance Method Details

#range(clamp: nil) ⇒ Object

NOTE: by default we validate number in default range but this needs to be context aware because not all days have all minutes (ie: DST changes with 30 mins) NOTE: With Condition::Hour we check dst_day? I haven’t been able to work out how to check for DST change within an hour without jumping boundaries of DST. Therefore we check the entire day. This might have a small performance impact but we generally aren’t looping over each hour when checking conditions.



11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
 
# File 'lib/on_calendar/condition/minute.rb', line 11

def range(clamp: nil)
  # If we are dealing with DST
  if clamp.present? and dst_day?(clamp: clamp)
    mins = []
    # NOTE: We can't use Time.beginning_of_hour because we may jump across DST boundary
    cursor = clamp.end_of_hour
    hour = clamp.hour
    zone = clamp.zone
    # Record each minute of the hour until we change hour || zone
    loop do
      mins << cursor.min
      cursor = cursor - 1.minute
      break if cursor.hour != hour or cursor.zone != zone
    end
    mins.reverse
  else
    RANGE
  end
end