using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using System.Threading;

namespace IridiumTest
{
    class IModem
    {
        private static byte[] txBytes = new byte[1024];

        private const string a3laCSQ = "AT+CSQ\r";
        public static int sendCSQ()
        {
            //Debug.Print(DateTime.Now + " Sending CSQ");
            Array.Clear(txBytes, 0, txBytes.Length);
            Array.Copy(UTF8Encoding.UTF8.GetBytes(a3laCSQ), txBytes, a3laCSQ.Length);
            IridiumTest.Form1.iridiumPort.Write(txBytes, 0, a3laCSQ.Length);

            return (1);
        }

        private const string a3laD0 = "AT&D0\r";
        public static void sendD0()
        {
            //Debug.Print(DateTime.Now + " Sending D0");
            Array.Clear(txBytes, 0, txBytes.Length);
            Array.Copy(UTF8Encoding.UTF8.GetBytes(a3laD0), txBytes, a3laD0.Length);
            IridiumTest.Form1.iridiumPort.Write(txBytes, 0, a3laD0.Length);
        }

        private const string a3laK0 = "AT&K0\r";
        public static void sendK0()
        {
            //Debug.Print(DateTime.Now + " Sending K0");
            Array.Clear(txBytes, 0, txBytes.Length);
            Array.Copy(UTF8Encoding.UTF8.GetBytes(a3laK0), txBytes, a3laK0.Length);
            IridiumTest.Form1.iridiumPort.Write(txBytes, 0, a3laK0.Length);
        }

        private static byte[] sbdwtHeader = new byte[9] { (byte)65, (byte)84, (byte)43, (byte)83, (byte)66, (byte)68, (byte)87, (byte)84, (byte)13 };            // AT+SBDWT

        public static int loadSBDWT(string gpsString)
        {
            sbTemp.Clear();
            sbTemp.Append(DateTime.Now.ToString("yyyy-MM-dd"));
            sbTemp.Append("T");
            sbTemp.Append(DateTime.Now.ToString("HH:mm:ss"));
            sbTemp.Append("Z,");
            sbTemp.Append("SQ = ");
            sbTemp.Append(SignalQuality.ToString());
            sbTemp.Append(",");
            sbTemp.Append(gpsString);
            //Debug.Print(DateTime.Now + "SBDWT message = " + sbTemp.ToString());

            IModem.sendSBDWT(UTF8Encoding.UTF8.GetBytes(sbTemp.ToString()));

            return (1);
        }

        private static readonly StringBuilder sbTemp = new StringBuilder(1024);
        public static void sendSBDWT(byte[] inBytes)
        {
            //Debug.Print(DateTime.Now + " Sending SBDWT");
            IridiumTest.Form1.iridiumPort.Write(sbdwtHeader, 0, sbdwtHeader.Length);
            Thread.Sleep(2000);
            sbTemp.Clear();
            sbTemp.Append(UTF8Encoding.UTF8.GetChars(inBytes));
            //Debug.Print(DateTime.Now + " Sending:" + sbTemp.ToString());
            IridiumTest.Form1.iridiumPort.Write(inBytes, 0, inBytes.Length);
        }

        private static readonly StringBuilder sbSBDD2 = new StringBuilder("AT+SBDD2\r");
        public static int sendSBDD2()
        {
            //Debug.Print(DateTime.Now + " Sending SBDD2");
            IridiumTest.Form1.iridiumPort.Write(UTF8Encoding.UTF8.GetBytes(sbSBDD2.ToString()), 0, sbSBDD2.Length);

            return (1);
        }

        private static readonly StringBuilder sbSBDI = new StringBuilder("AT+SBDI\r");
        public static int sendSBDI()
        {
            //Debug.Print(DateTime.Now + " Sending SBDI");
            Array.Clear(txBytes, 0, txBytes.Length);
            Array.Copy(UTF8Encoding.UTF8.GetBytes(sbSBDI.ToString()), txBytes, sbSBDI.Length);
            IridiumTest.Form1.iridiumPort.Write(txBytes, 0, sbSBDI.Length);

            return (1);
        }

        private static readonly StringBuilder sbSBDIX = new StringBuilder("AT+SBDIX\r");
        public static void sendSBDIX()
        {
            //Debug.Print(DateTime.Now + " Sending SBDIX");
            Array.Clear(txBytes, 0, txBytes.Length);
            Array.Copy(UTF8Encoding.UTF8.GetBytes(sbSBDI.ToString()), txBytes, sbSBDI.Length);
            IridiumTest.Form1.iridiumPort.Write(txBytes, 0, sbSBDI.Length);
        }

        static int SignalQuality;

        public static void parseSQ(byte[] inBytes)
        {
            if ((inBytes[0] == 43) && (inBytes[1] == 67) && (inBytes[2] == 83) && (inBytes[3] == 81))
                SignalQuality = (int)inBytes[5] - 48;
        }
    }
}