deep_find_helper.rb

# frozen_string_literal: true

module DeepFindHelper
    def deep_find(hash, key)
        return nil unless hash.is_a?(Hash)

        hash.filter do |k, v|
            if v.is_a?(Hash)
                deep_find(v, key)
            else
                k == key
            end
        end
    end
    module_function :deep_find

    refine Hash do
        include DeepFindHelper

        def deep_find(key)
            DeepFindHelper.deep_find(self, key)
        end
    end
end