class Yalphabetize::OffenceDetector

# File lib/yalphabetize/offence_detector.rb, line 5
def initialize(stream_node, order_checker_class:)
  @stream_node = stream_node
  @order_checker_class = order_checker_class
end

# File lib/yalphabetize/offence_detector.rb, line 10
def offences?
  !alphabetized?(stream_node)
end

# File lib/yalphabetize/offence_detector.rb, line 18
def alphabetized?(node)
  return false if node.mapping? && !alphabetized_children?(node)

  if node.children
    each_child_also_alphabetized?(node.children)
  else
    true
  end
end

# File lib/yalphabetize/offence_detector.rb, line 28
def alphabetized_children?(node)
  order_checker = order_checker_class.new_for(node)

  node.children.each_slice(2).each_cons(2).all? do |a, b|
    order_checker.ordered?(a.first.value, b.first.value)
  end
end

# File lib/yalphabetize/offence_detector.rb, line 36
def each_child_also_alphabetized?(children)
  children.flatten&.inject(true) { |bool, child_node| bool && alphabetized?(child_node) }
end