module GameServer
  module Server
    class MessageRouter
      def initialize(world)
        @world = world
      end

      def handle(data)
        case data["type"]
        when "hello"
          hello
        when "query"
          query(data)
        when "command"
          command(data)
        else
          error("UNKNOWN_TYPE")
        end
      end

      def hello
        {
          type: "update",
          domain: "world",
          payload: {
            time: @world.time,
            game_speed: Settings::GAME_SPEED
          }
        }
      end

      def query(data)
        if data["domain"] == "player"
          {
            type: "update",
            domain: "player",
            payload: { money: 1000 }
          }
        else
          error("UNKNOWN_DOMAIN")
        end
      end

      def command(data)
        {
          type: "update",
          domain: "command",
          payload: { status: "accepted" }
        }
      end

      def error(code)
        {
          type: "error",
          domain: "system",
          payload: { code: code }
        }
      end
    end
  end
end