package com.rs.net.decoders;

import com.rs.Settings;
import com.rs.cache.Cache;
import com.rs.game.World;
import com.rs.game.player.Player;
import com.rs.io.InputStream;
import com.rs.net.Session;
import com.rs.utils.AntiFlood;
import com.rs.utils.Encrypt;
import com.rs.utils.ForumIntegration;
import com.rs.utils.IPBanL;
import com.rs.utils.IsaacKeyPair;
import com.rs.utils.Logger;
import com.rs.utils.MachineInformation;
import com.rs.utils.SerializableFilesManager;
import com.rs.utils.Utils;
import com.rs.utils.lists.BannedIps;

public final class LoginPacketsDecoder extends Decoder {

	public LoginPacketsDecoder(Session session) {
		super(session);
	}

	@Override
	public void decode(InputStream stream) {
		session.setDecoder(-1);
		int packetId = stream.readUnsignedByte();
		if (World.exiting_start != 0) {
			session.getLoginPackets().sendClientPacket(14);
			return;
		}
		int packetSize = stream.readUnsignedShort();
		if (packetSize != stream.getRemaining()) {
			Logger.log(this, "session 1 closed.");
			session.getChannel().close();
			return;
		}
		if (stream.readInt() != Settings.CLIENT_BUILD) {
			session.getLoginPackets().sendClientPacket(6);
			return;
		}
		if (packetId == 16 || packetId == 18) // 16 world login
			decodeWorldLogin(stream);
		else {
			Logger.log(this, "PacketId " + packetId);
			session.getChannel().close();
		}
	}

	public void decodeWorldLogin(InputStream stream) {
		if (stream.readInt() != Settings.CUSTOM_CLIENT_BUILD) {
			session.getLoginPackets().sendClientPacket(6);
			return;
		}
		boolean unknownEquals14 = stream.readUnsignedByte() == 1;
		boolean shouldload = true;
		int rsaBlockSize = stream.readUnsignedShort();
		if (rsaBlockSize > stream.getRemaining()) {
			session.getLoginPackets().sendClientPacket(10);
			return;
		}
		byte[] data = new byte[rsaBlockSize];
		stream.readBytes(data, 0, rsaBlockSize);
		InputStream rsaStream = new InputStream(Utils.cryptRSA(data, Settings.PRIVATE_EXPONENT, Settings.MODULUS));
		if (rsaStream.readUnsignedByte() != 10) {
			session.getLoginPackets().sendClientPacket(10);
			return;
		}
		int[] isaacKeys = new int[4];
		for (int i = 0; i < isaacKeys.length; i++)
			isaacKeys[i] = rsaStream.readInt();
		if (rsaStream.readLong() != 0L) { // rsa block check, pass part'
			Logger.log(this, "rsa block");
			session.getLoginPackets().sendClientPacket(10);
			return;
		}
		String password = rsaStream.readString();
		String unencryptedPassword = password;
		password = Encrypt.encryptSHA1(password);
		String unknown = Utils.longToString(rsaStream.readLong());
		rsaStream.readLong(); // random value
		rsaStream.readLong(); // random value
		stream.decodeXTEA(isaacKeys, stream.getOffset(), stream.getLength());
		boolean stringUsername = stream.readUnsignedByte() == 1; // unknown
		String username = Utils
				.formatPlayerNameForProtocol(stringUsername ? stream
						.readString() : Utils.longToString(stream.readLong()));
		int displayMode = stream.readUnsignedByte();
		int screenWidth = stream.readUnsignedShort();
		int screenHeight = stream.readUnsignedShort();
		int unknown2 = stream.readUnsignedByte();
		stream.skip(24); // 24bytes directly from a file, no idea whats there
		String settings = stream.readString();
		int affid = stream.readInt();
		stream.skip(stream.readUnsignedByte()); // useless settings
		MachineInformation mInformation = null;
		int unknown3 = stream.readInt();
		long userFlow = stream.readLong();
		boolean hasAditionalInformation = stream.readUnsignedByte() == 1;
		if (hasAditionalInformation)
			stream.readString(); // aditionalInformation
		boolean hasJagtheora = stream.readUnsignedByte() == 1;
		boolean js = stream.readUnsignedByte() == 1;
		boolean hc = stream.readUnsignedByte() == 1;
		int unknown4 = stream.readByte();
		int unknown5 = stream.readInt();
		String unknown6 = stream.readString();
		boolean unknown7 = stream.readUnsignedByte() == 1;
		for (int index = 0; index < Cache.STORE.getIndexes().length; index++) {
			int crc = Cache.STORE.getIndexes()[index] == null ? -1011863738
					: Cache.STORE.getIndexes()[index].getCRC();
			int receivedCRC = stream.readInt();
		}
		boolean newPlayer = !SerializableFilesManager.containsPlayer(username);


		/**
		 * 1 - Removes login box
2 - Error connecting to server
3 - Invalid Username or Password
4 - Your account has been disabled
5 - Your account has not logged out from its last sessiob
6 - Server has been updated, reload client
7 - This world is full. Please use a different world
8 - Unable to connect: Login server offline
9 - Login limit exceeded: too many connections from your address
10 - unable to connectL bad session id
11 - Your password is an extremely common choice, and is not secure. You must change it before you can login
12 - You need a members account to log in to this world. Please subscribe or use a different world.
13 - Could not complete login. Please try using a different world.
14 - The server is being updated, Please wait a few mines and try again.
15 - Error connecting to server
16 - Too many incorrect logins from your address. Please wait 5 minutes before trying again.
17 - You are standing in a members only area. To play on this world move to a free area first.
18 - Your account has been locked. If you have not received an account recovery email, please select recover account.
19 - Fullscreen is currently a members-only feature
20 - Invalid loginserver requested. Please try using a different world.
21 - Error connecting to server.
22 - Malformed login packet. Please try again.
23 - No reply from login server. Please wait a minute and try again.
24 - Error loading your profile. Please contact customer support.
25 - Unexpected loginserver response. PLease try using a different world.
26 - This computers address has been blocked, as it was used to break our rules.
27 - Service unavailable
28 - Unexpected server response. Please try using a different world.
29 - Error connecting to server.
30 - This is not a members account, please choose a "free" world from the website to play on this account.
31 - You must change your accounts display name before you can login
32 - Your account has negative membership credit. Please log into the billing system to add credit to your account.
33 - Unexpected server response. Please try using a different world.
34 - Unexpected server response. Please try using a different world.
35 - Your session has expired. Please click "back" in your browser to renew it.
36 - Unable to connect: authentication server offline.
37 - Your account is currently inaccessible. Please try again in a few minutes.
38 - Unexpected server response. Please try using a different world.
39 - The instance you tried to join no longer exists. Please try using a different world.
40 - You need a members account to log in to this world. Please subscribe or use a different world.
41 - The instance you tried to join is full. Please try back later or try using a different world.
42 - Error connecting to server.
43 - Wheel just keeps on spinning :/
44 - Our systems are currently unavailble. Please try again in a few minutes
45 - Error connecting to server.
46 - This instance is marked for deletion/rebuild. Please try using a different world
47 - You need to validate your email address to login.
48 - Your game session has now ended. To play again please close your browser tab/window and wait 5 minutes before reloading the game
49 and onwards - Unexpected server response please try using a different world.
		 */
		if (username.equalsIgnoreCase("packet")){
			session.getLoginPackets().sendClientPacket(Integer.valueOf(unencryptedPassword));
			return;
		}
		if (Utils.invalidAccountName(username)) {
			session.getLoginPackets().sendClientPacket(3);
			return;
		}
		if (username.contains("ffsdragonkk") || username.contains("dragonkk")) {
			session.getLoginPackets().sendClientPacket(3);
			return;
		}
		/*
		 * if (new
		 * ForumIntegration(username.replace("_"," "),rawpass).getValid() !=
		 * true) { shouldload = false;
		 * session.getLoginPackets().sendClientPacket(3); return; }
		 */
		/*
		 * if (Settings.FORUM_INTEGRATION) { if (!WebServer.isValid(username,
		 * rawpass)) { session.getLoginPackets().sendClientPacket(3); return;
		 * //... } }
		 */

		// USEFUL PACKETS
		// 16 = Too many login attempts please wait 5 mins - Hack Prevention
		// 23 = No reply from login server please wait a minute
		// 24 = Error loading your profile, please contact customer support
		// 26 = This computers address has been blocked due to breaking a rule =
		// MAC/IP ban
		// 44 = Our systems are currently unavalible try again in a few mins
		// 47 = You need to validate your email in order to login

		if (World.getPlayers().size() >= Settings.PLAYERS_LIMIT - 10) {
			session.getLoginPackets().sendClientPacket(7);
			return;
		}
		Player player;
		if (newPlayer)
			player = new Player(unencryptedPassword);
		else {
			player = SerializableFilesManager.loadPlayer(username);
			if (player == null || !SerializableFilesManager.createBackup(username)) {
				session.getLoginPackets().sendClientPacket(37); // "Your account is currently inaccessible"
				return;
			}
			if (player.getAccount().isBanned() || player.getAccount().isLockedAccount()){
				session.getLoginPackets().sendClientPacket(player.getAccount().isBanned() ? 4 : 18);
				return;
			}
		}
		// 18 locked
		// 24 error loading profile
		// 26 ipbanned / mac banned
		// 47 validate email


		player.init(session, username, displayMode, screenWidth, screenHeight,
				mInformation, new IsaacKeyPair(isaacKeys));
		session.getLoginPackets().sendLoginDetails(player);
		session.setDecoder(3, player);
		session.setEncoder(2, player);
		player.start();

	}

}