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using System;
using System.Threading;
using System.Collections.Generic;
using System.Text;

class Program {
    //static HexFile hf;
    const byte DEBUG_LEVEL = 3; //0, 1, 2, 3
    static SerialConnection sc;
    static Daemon d;
    static TcpServer tcps;
    //static Downloader dl;
    
    //private const byte CAN_NMT = 0x00;
    
    //private const byte CAN_NMT_RESET = 0x04;
    //private const byte CAN_NMT_START_APP  = 0x24;
    //private const byte CAN_NMT_APP_START  = 0x28;
    private const byte MY_ID = 0x00;
    private const byte MY_NID = 0x0;
    
    static private string argPort;
    static private int argBaud;
    
    static void Main(string[] args) {
        bool error = false;
        if (args.Length != 2) {
            Console.WriteLine("Syntax: program.exe <port> <baudrate>");
            Console.WriteLine("port        - can be in form of /dev/ttyS0 or com2 or /udp/ipaddress/port");
            Console.WriteLine("baudrate    - any baudrate like 19200 (for udp baudrate could be any number)");
            Console.WriteLine("");
            Console.WriteLine("example: program.exe /dev/ttyUSB0 19200");
            Console.WriteLine("example: program.exe /udp/192.168.0.10/1100 0");
            error = true;
            return;
        } 
        
        if (!error) {
            //Console.WriteLine("arg0: " + args[0] + "\n");
            argPort = args[0];
            argBaud = Int32.Parse(args[1]);
        }
        
        if (!error) {
            if (DEBUG_LEVEL>0) {
                Console.WriteLine("canDaemon");
                Console.WriteLine("Commands:");
                //Console.WriteLine("reset - reset communication.");
                Console.WriteLine("exit  - exit program");
                Console.WriteLine("");
                Thread.Sleep(1000);
            }
            
            sc = new SerialConnection();
            try {
                sc.setConfiguration(argBaud, System.IO.Ports.Parity.None, argPort, System.IO.Ports.StopBits.One, 8, false);
            }
            catch (Exception e) { Console.WriteLine("Error: " + e.Message); }
            if (!sc.open()) { 
                Console.WriteLine("Error opening port to target"); 
                //... här ska man testa om igen...
                
            } else {
                
                d = new Daemon(sc);
                tcps = new TcpServer(1200);
                d.addServer(tcps);
                
                Thread t = new Thread(d.thread);
                t.Start();
                
                string instr;
                do {
                    //Console.Write("> ");
                    instr = Console.ReadLine().ToLower();
                } while (parseInput(instr));
                d.stop();
            }
        }
    }
    
    static private bool parseInput(string instr) {
        if (instr.Equals("reset")) {
            //Console.WriteLine("Resetting..");
            //sc = new SerialConnection();
            //try {
            //  sc.setConfiguration(argBaud, System.IO.Ports.Parity.None, argPort, System.IO.Ports.StopBits.One, 8, false);
            //}
            //catch (Exception e) { Console.WriteLine("Error: " + e.Message); return true; }
            //if (!sc.open()) { Console.WriteLine("Error opening port."); return true; }
            
            //byte[] data = new byte[8];
            //CanPacket cp = new CanPacket(CAN_NMT, CAN_NMT_RESET, MY_ID, argReceiverID, 0, data);
            //sc.writePacket(cp);
            //sc.close();
        }
        else if (instr.Equals("exit")) {
            return false;
        }
        else {
            Console.WriteLine("Unknown command.");
        }
        
        return true;
    }
    
}