Class: Equalshares::TieBreaker::Lexico

Inherits:
Object
  • Object
show all
Defined in:
lib/equalshares/tie_breaker.rb

Overview

A total order (pabutools-style): rank tied projects by their position in the list and keep the first.

Instance Method Summary collapse

Constructor Details

#initialize(order) ⇒ Lexico

Returns a new instance of Lexico.



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# File 'lib/equalshares/tie_breaker.rb', line 62

def initialize(order)
  @order = order
  @position = order.each_with_index.to_h
end

Instance Method Details

#filter(remaining, _ctx) ⇒ Object 



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# File 'lib/equalshares/tie_breaker.rb', line 67

def filter(remaining, _ctx)
  [remaining.min_by { |c| @position[c] || @order.length }]
end

#sort_key(project_id, _ctx) ⇒ Object 



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# File 'lib/equalshares/tie_breaker.rb', line 71

def sort_key(project_id, _ctx)
  @position[project_id] || @order.length
end