using System;
using System.Threading;
using System.IO.Ports;
using System.Text;

using Microsoft.SPOT;
using Microsoft.SPOT.Hardware;

namespace simpleTerm
{
    public class Program
    {
        //COM1 = Console     COM2 = Optode (9600-N-8-1)     COM3 = Elmo      COM4 = SBE41
        public static SerialPort terminalPort = new SerialPort("COM2", 9600, Parity.None, 8, StopBits.One);

        private static string wakeUp = "\r";
        private static string getAll = "get all\r\n";
        private static string doSample = "Do Sample\r\n";

        private static byte[] txBytes = new byte[64];

        public static void Main()
        {
            Debug.Print("\r\nStarting Program\r\n");

            terminalPort.ReadTimeout = 10000;
            terminalPort.Open();
            terminalPort.DiscardInBuffer();
            terminalPort.DiscardOutBuffer();
            terminalPort.DataReceived += new SerialDataReceivedEventHandler(terminalPortDataReceived);

            //txBytes = Encoding.UTF8.GetBytes("get all\r\n");
            //terminalPort.Write(txBytes, 0, txBytes.Length);

            //while (true)
            //{
            //}

            for (int i = 0; i < 5; i++)
            {
                switch (i)
                {
                    case 0:
                        Debug.Print("Sending Wake Up");
                        Array.Clear(txBytes, 0, txBytes.Length);
                        txBytes = Encoding.UTF8.GetBytes(wakeUp);
                        terminalPort.Write(txBytes, 0, wakeUp.Length);
                        break;
                    case 1:
                        Debug.Print(" ");
                        Debug.Print("Sending Get All");
                        Array.Clear(txBytes, 0, txBytes.Length);
                        txBytes = Encoding.UTF8.GetBytes(getAll);
                        terminalPort.Write(txBytes, 0, getAll.Length);
                        break;
                    case 2:
                        Debug.Print(" ");
                        Debug.Print("Sending Do Sample");
                        Array.Clear(txBytes, 0, txBytes.Length);
                        txBytes = Encoding.UTF8.GetBytes(doSample);
                        terminalPort.Write(txBytes, 0, doSample.Length);
                        break;
                    case 3:
                        //Debug.Print(" ");
                        //Debug.Print("Sending Do Sample");
                        Array.Clear(txBytes, 0, txBytes.Length);
                        txBytes = Encoding.UTF8.GetBytes(doSample);
                        terminalPort.Write(txBytes, 0, doSample.Length);
                        break;
                    case 4:
                        //Debug.Print(" ");
                        //Debug.Print("Sending Do Sample");
                        Array.Clear(txBytes, 0, txBytes.Length);
                        txBytes = Encoding.UTF8.GetBytes(doSample);
                        terminalPort.Write(txBytes, 0, doSample.Length);
                        break;
                }
                Thread.Sleep(5000);
            }

            terminalPort.Close();
        }


        private static StringBuilder inSB = new StringBuilder(4096);
        private static char[] inChars = new char[4096];
        private static byte[] inBytes = new byte[4096];

        private static void terminalPortDataReceived(object sender, SerialDataReceivedEventArgs e)
        {
            int inInt;

            inInt = terminalPort.ReadByte();

            if ((inInt == 10) || (inInt == 13))
            { }
            else
            {
                inBytes[0] = (byte)inInt;
                inChars = UTF8Encoding.UTF8.GetChars(inBytes, 0, 1);
                inSB.Append(inChars[0]);
            }
            if (inInt == 13)
            {
                Debug.Print(inSB.ToString());
                inSB.Clear();
            }
        }
    }
}