using System;
using System.Drawing;
using System.Collections;

namespace IMDrawLibrary
{
    public enum Command
    {
        Login = 0,
        // Login Detail: <none>
        Message = 1,
        // PersonalMessage Detail: message
        ClientList = 2,
        // Client List: separated by @
        Logout = 3
        // Logout Detail: <none>
    };

    public enum Version
    {
        Server = 0,
        Client = 1
    };

    public class Common
    {
        public const string BossName = "Boss";
        public const string All = "All";
        public const string Conference = "Conference";
    }

    public class Message
    {
        /*
         * Message format
         * IMDraw|<Sender>|<Receiver>|<Command>|<TextDetails>|<Point1 x>|<Point1 y>|....
         * 
         * Sample
         * IMDraw|sacredgas|laney_18_boggs|00|Hello World|34|45|*|2|98
         * 
         */
        string strSender;
        string strReceiver;
        Command cmdMessageCommand;
        string strTextDetail;
        ArrayList points;
        byte[] dataArray;

        public static int Size = 1024 * 100;

        public Message()
        {
            
        }

        public Message(byte[] rawMessage, Version version)
        {
            string strRawStringMessage
                = System.Text.Encoding.ASCII.GetString(rawMessage);
            string[] strRawStringMessageArray
                = strRawStringMessage.Split(new char[] { '|' });

            this.strSender = strRawStringMessageArray[1];
            this.strReceiver = strRawStringMessageArray[2];
            this.cmdMessageCommand = (Command)Convert.ToInt32(strRawStringMessageArray[3]);
            if (version == Version.Client)
            {
                this.strTextDetail = strRawStringMessageArray[4];
                this.points = new ArrayList();
                ArrayList Xpts = new ArrayList();
                ArrayList Ypts = new ArrayList();
                bool x = true;
                for (int index = 5; index < strRawStringMessageArray.Length; index++)
                {
                    if (strRawStringMessageArray[index].IndexOf("\0") > -1)
                    {
                        break;
                    }
                    else if (strRawStringMessageArray[index].Equals("*"))
                    {
                        if (Xpts.Count != 0)
                        {
                            Point[] PointArray = new Point[Xpts.Count];
                            for (int i = 0; i < Xpts.Count; i++)
                            {
                                Point point = new Point((int)Xpts[i], (int)Ypts[i]);
                                PointArray[i] = point;
                            }
                            points.Insert(points.Count,PointArray);
                            Xpts = new ArrayList();
                            Ypts = new ArrayList();
                        }
                    }
                    else
                    {

                        if (x) { Xpts.Add(Convert.ToInt32(strRawStringMessageArray[index])); x = false; }
                        else { Ypts.Add(Convert.ToInt32(strRawStringMessageArray[index])); x = true; }
                        
                       //pts.Add(new Point(Convert.ToInt32(strRawStringMessageArray[index]), Convert.ToInt32(strRawStringMessageArray[index++])));
                    }
                }
            }
            else
            {
                this.dataArray = rawMessage;
            }
        }

        public string Sender
        {
            get { return strSender; }
            set { strSender = value; }
        }

        public string Receiver
        {
            get { return strReceiver; }
            set { strReceiver = value; }
        }
        public Command MessageCommand
        {
            get { return cmdMessageCommand; }
            set { cmdMessageCommand = value; }
        }
        public string TextDetail
        {
            get { return strTextDetail; }
            set { strTextDetail = value; }
        }
        public ArrayList Points
        {
            get { return points; }
            set { points = value; }
        }

        public byte[] GetRawMessage()
        {
            if (dataArray != null && dataArray.Length > 0)
            {
                return dataArray;
            }
            System.Text.StringBuilder sbMessage
                = new System.Text.StringBuilder("IMDraw");
            sbMessage.Append("|");
            sbMessage.Append(strSender);
            sbMessage.Append("|");
            sbMessage.Append(strReceiver);
            sbMessage.Append("|");
            sbMessage.Append((int)cmdMessageCommand);
            sbMessage.Append("|");
            if (strTextDetail != null && !strTextDetail.Trim().Equals(""))
                sbMessage.Append(strTextDetail);
            else
                sbMessage.Append(" ");
            sbMessage.Append("|");
            if (points != null)
            {
                foreach (Point[] pntArray in points)
                {
                    foreach (Point point in pntArray)
                    {
                        sbMessage.Append(point.X);
                        sbMessage.Append("|");
                        sbMessage.Append(point.Y);
                        sbMessage.Append("|");
                    }
                    sbMessage.Append("*");
                    sbMessage.Append("|");
                }
            }

            return System.Text.Encoding.ASCII.GetBytes(sbMessage.ToString());
        }
    }
}