module Refract

# File lib/refract.rb, line 4
def self.search(json, query)
  fail(ArgumentError, 'Expected hash as the first argument') unless json.is_a?(Hash)
  fail(ArgumentError, 'Expected hash as the second argument') unless query.is_a?(Hash)

  recursive_lookup(Refract::KeysTransform.deep_stringify_keys(json), Refract::KeysTransform.deep_stringify_keys(query))
end

# File lib/refract.rb, line 13
def self.recursive_lookup(json, query)
  return [] unless json['content']
  return [] unless json['content'].is_a?(Array)

  result = json['content'].select do |element|
    query.map do |k, v|
      if v.is_a?(Hash) && element[k].is_a?(Hash)
        (v.to_a - element[k].to_a).empty?
      else
        element[k] == v
      end
    end.all?
  end

  json['content'].map do |element|
    search(element, query)
  end.flatten.concat(result)
end