Class: SOF::Cycles::Lookback
Constant Summary
Constants inherited
from SOF::Cycle
SOF::Cycle::VERSION
Instance Attribute Summary
Attributes inherited from SOF::Cycle
#parser
Class Method Summary
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Instance Method Summary
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Methods inherited from SOF::Cycle
#==, #as_json, class_for_kind, class_for_notation_id, #cover?, #covered_dates, cycle_handlers, dump, #extend_period, for, #from_data, handles?, #humanized_span, inherited, #initialize, #kind_inquiry, #last_completed, load, #notation, notation, #range, #satisfied_by?, #to_h, validate_period, #validate_period, volume_only?
Constructor Details
This class inherits a constructor from SOF::Cycle
Class Method Details
.recurring? ⇒ Boolean
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# File 'lib/sof/cycles/lookback.rb', line 11
def self.recurring? = true
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Instance Method Details
#expiration_of(completion_dates) ⇒ Date?
“Absent further completions, you go red on this date”
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# File 'lib/sof/cycles/lookback.rb', line 23
def expiration_of(completion_dates)
anchor = completion_dates.max_by(volume) { _1 }.min
return unless satisfied_by?(completion_dates, anchor:)
window_end anchor
end
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#final_date(anchor) ⇒ Object
Also known as:
window_end
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# File 'lib/sof/cycles/lookback.rb', line 30
def final_date(anchor)
return if anchor.nil?
time_span.end_date(anchor.to_date)
end
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#start_date(anchor) ⇒ Object
Also known as:
window_start
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# File 'lib/sof/cycles/lookback.rb', line 37
def start_date(anchor)
time_span.begin_date(anchor.to_date)
end
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#to_s ⇒ Object
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# File 'lib/sof/cycles/lookback.rb', line 13
def to_s = "#{volume}x in the prior #{period_count} #{humanized_period}"
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#volume_to_delay_expiration(completion_dates, anchor:) ⇒ Object
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# File 'lib/sof/cycles/lookback.rb', line 15
def volume_to_delay_expiration(completion_dates, anchor:)
oldest_relevant_completion = completion_dates.min
[completion_dates.count(oldest_relevant_completion), volume].min
end
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