package com.winterlove.network.packet.parse;

import com.winterlove.network.io.InputStream;
import com.winterlove.network.packet.Packet;
import com.winterlove.network.packet.PacketParser;
import com.winterlove.network.packet.PacketRepresentation;
import com.winterlove.network.packet.ParsesPacket;
import com.winterlove.network.packet.reps.LoginPacket;

@ParsesPacket({ 16, 18 })
public class LoginPacketParser implements PacketParser {

    @Override
    public PacketRepresentation parse(Packet packet) {
        InputStream input = InputStream.forPacket(packet);

        int magic = input.readUnsignedByte();
        int clientVersion = input.readUnsignedShort();
        boolean lowDetail = input.read() == 0;

        int[] fileChecksums = new int[9];
        for (int i = 0; i < fileChecksums.length; i++) {
            fileChecksums[i] = input.readInteger();
        }

        int blockLength = input.readUnsignedByte();
        int blockOperationCode = input.readUnsignedByte();

        int[] sessionKeys = new int[4];
        for (int i = 0; i < sessionKeys.length; i++) {
            sessionKeys[i] = input.readInteger();
        }

        int userId = input.readInteger();
        String username = input.readString();
        String password = input.readString();

        return LoginPacket.get(magic, clientVersion, lowDetail, fileChecksums
                , blockLength, blockOperationCode, sessionKeys, userId
                , username, password);
    }

}