package art.servers.etdserver.protocols.skp3;

import art.library.utils.common.*;
import art.servers.etdserver.Shared;

public class SKP3_Message
{
    private int[] data;
    private int pointer = 0;


    public void setData(byte[] input)
    {
        data = new int[input.length];
        for (int i=0; i<data.length; i++)
        {
            data[i] = (int)input[i];
        }

        data = SKP3_ProtocolAnalyser.unapplyMask(data);
    }


    public void setData(int[] input)
    {
        data = new int[input.length];
        for (int i=0; i<data.length; i++)
        {
            data[i] = input[i];
        }

        data = SKP3_ProtocolAnalyser.unapplyMask(data);
    }


    public void reset ()
    {
        pointer = 0;
    }


    public int length ()
    {
        return(data.length);
    }


    public int readByte () throws Exception
    {
       int v = data[pointer++];
       if (v < 0) v += 256;
       return (v);
    }


    public int readShort () throws Exception
    {
       return (readByte() + (readByte() << 8));
    }



    public int readShortHigh () throws Exception
    {
       return ((readByte() << 8) + readByte());
    }



    public int readInt () throws Exception
    {
       return (readByte() + (readByte() << 8) + (readByte() << 16) + (readByte() << 24));
    }


    public int readIntHigh () throws Exception
    {
       return ((readByte() << 24) + (readByte() << 16) + (readByte() << 8) + readByte());
    }


    public int[] readFully () throws Exception
    {
        int[] resultado = new int[data.length - pointer];
        System.arraycopy(data, pointer, resultado, 0, resultado.length);
        return resultado;
    }



    public int[] readIntArray (int count) throws Exception
    {
        int[] resultado = new int[count];
        System.arraycopy(data, pointer, resultado, 0, resultado.length);
        pointer = pointer + count;
        return resultado;
    }



    public boolean eof()
    {
        return (pointer >= data.length-1);
    }



    public boolean eofCRC()
    {
        return (pointer >= data.length-2);
    }


    public void check() throws Exception
    {
        if (readByte() != SKP3_ProtocolWriter.STX)
        {
            throw new Exception(Shared.getMessage("Message not start with 0x7E"));
        }

        int S = readByte();
        if (S != 'S')
        {
            throw new Exception(Shared.getMessage("Message has not S byte of SKP3: " + S));
        }

        int K = readByte();
        if (K != 'K')
        {
            throw new Exception(Shared.getMessage("Message has not K byte of SKP3: " + K));
        }

        int P = readByte();
        if (P != 'P')
        {
            throw new Exception(Shared.getMessage("Message has not P byte of SKP3: " + P));
        }

        int V = readByte();
        if (V != '3')
        {
            throw new Exception(Shared.getMessage("Message has not 3 byte of SKP3: " + V));
        }
    }


    public byte[] toByteArray()
    {
        return(ArrayUtils.toByteArray(data));
    }


    public String toString()
    {
        String result = "";

        try
        {
            for (int i=0; i<data.length; i++)
            {
                String svalue = String.format("%02X", data[i] & 0xFF);
                result += svalue + " ";
            }
        }
        catch (Exception e)
        {
            
        }

        return(result);
    }

}