require "mimemagic" unless defined?(::Mimemagic)
require "multi_mime/adapter"
require "multi_mime/null_type"

module MultiMime
  module Adapters

    # Use the Mimemagic library
    class Mimemagic < Adapter

      #
      def type_for(mime_type, opts={})
        type = ::MimeMagic::EXTENSIONS.key(mime_type) # Mimemagic actually doesnt allow you to simply verify that a mime type exists
        type ? mime_type : MultiMime::NullType.new
      end

      #
      def type_for_extension(extension, opts={})
        ::MimeMagic.by_extension(extension) || MultiMime::NullType.new
      end

      #
      def type_for_path(path, opts={})
        type_for_extension(File.extname(path))
      end

      #
      def type_for_file(file, opts={})
        type_for_extension(File.extname(file))
      end

    end

  end
end