require 'socket'    # needed for Socket library
require_relative 'protocol'  # needed for custom binary protocol

port = 9999
puts "Started UDP server on #{port}..."

Socket.udp_server_loop(port) { |msg, msg_src|
    proto = CustomProtocol.new
    proto.read(msg)
    if proto.command_word == "ADD" 
        puts "Received ADD command"
        result = proto.op1 + proto.op2
        msg_src.reply result.to_s
    elsif proto.command_word == "MULT"
        puts "Received MULTIPLY command"
        result = proto.op1 * proto.op2
        msg_src.reply result.to_s
    else
        puts "Received uknown cmd msg: #{proto.command_word} ..."
    end
    
}