require_relative '../table'

module TTFunk
  class Table
    class Maxp < Table
      attr_reader :version
      attr_reader :num_glyphs
      attr_reader :max_points
      attr_reader :max_contours
      attr_reader :max_component_points
      attr_reader :max_component_contours
      attr_reader :max_zones
      attr_reader :max_twilight_points
      attr_reader :max_storage
      attr_reader :max_function_defs
      attr_reader :max_instruction_defs
      attr_reader :max_stack_elements
      attr_reader :max_size_of_instructions
      attr_reader :max_component_elements
      attr_reader :max_component_depth

      def self.encode(maxp, mapping)
        num_glyphs = mapping.length
        raw = maxp.raw
        raw[4, 2] = [num_glyphs].pack('n')
        raw
      end

      private

      def parse!
        @version, @num_glyphs, @max_points, @max_contours,
          @max_component_points, @max_component_contours, @max_zones,
          @max_twilight_points, @max_storage, @max_function_defs,
          @max_instruction_defs, @max_stack_elements, @max_size_of_instructions,
          @max_component_elements, @max_component_depth = read(length, 'Nn*')
      end
    end
  end
end