# frozen_string_literal: true

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# Modified work Copyright 2016-present WeWantToKnow AS
#
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module U3dCore
  # all these attributes are false by default
  # and can be set overriden temporarily using a
  #   with_attr(value) do
  #     something
  #   end
  # construct
  class Globals
    class << self
      attr_writer :verbose, :log_timestamps, :use_keychain, :do_not_login

      def attributes
        @attributes ||= ((methods - public_instance_methods).grep(/=$/) - %i[<= >=]).map do |s|
          a = s.to_s
          a[0..(a.length - 2)] # remove the '='
        end
      end

      def with(attr, value)
        orig_attr = send("#{attr}?")
        send("#{attr}=", value)
        yield if block_given?
      ensure
        send("#{attr}=", orig_attr)
      end

      def is?(attr)
        instance_variable_get("@#{attr}")
      end

      def method_missing(method_sym, *arguments, &block)
        case method_sym.to_s
        when /^with_(.*)$/
          if attributes.include? Regexp.last_match(1)
            with(Regexp.last_match(1).to_sym, arguments.first, &block)
          else
            super
          end
        when /^(.*)\?$/
          if attributes.include? Regexp.last_match(1)
            is?(Regexp.last_match(1).to_sym)
          else
            super
          end
        else
          super
        end
      end

      def respond_to_missing?(method_sym, include_private = false)
        case method_sym.to_s
        when /^with_(.*)$/ || /^(.*)\?$/
          return attributes.include? Regexp.last_match(1)
        else
          super
        end
      end
    end
    private_class_method :is?, :with, :attributes
  end
end