module Cognition
  module Plugins
    class Default < Cognition::Plugins::Base
      match /^ping/i, :pong, help: {
        'ping' => 'Test if the endpoint is responding. Returns PONG.'
      }

      match /^help\s*(?<command>.*)/i, :help, help: {
        'help' => 'Lists all commands with help',
        'help <command>' => 'Lists help for <command>'
      }

      def pong(msg, match_data = nil)
        'PONG'
      end

      def help(msg, match_data = nil)
        if match_data['command'].empty?
          Cognition.help.join("\n")
        else
          Cognition.help.find_all { |text| text.match match_data[:command] }.join("\n")
        end
      end
    end
  end
end