public class AccountCreationDecoder {

    private static boolean BadName(String name) {
        return name.contains("nerd") || name.contains("fuck") || name.contains("gay") || name.contains("motherf");
    }

    private static List<String> SuggestedNames(String name) {
        List<String> Names = new ArrayList<String>();
        for (byte i = 0; i < 5; i++) {
            String newName = name + Misc.random(5000);
            if (AccountExists(newName) || Names.contains(newName))
                continue;
            Names.add(newName);
        }
        return Names;
    }

    private static boolean AccountExists(String name) {
        return new File("./data/savedgames/" + name + ".ser").exists();

    }

    /*
     *Where i say noob hacker means only way to that code part be called is by hacking
      */
    public static void decode(ConnectionHandler c, InStream in) {
        switch(c.getConnectionStage()) {
            case Constants.CHECK_ACC_NAME:
                if(in.remaining() < 8) {
                    c.setConnectionStage(Constants.DISCONNECT);
                    return;
                }
                List<String> suggestions = null;
                String user = Misc.longToString(in.readLong());
                int packetSize = in.readUnsignedByte();
                int returnCode = 0;
                if(user==null)
                    returnCode = 22;
                else if(BadName(user))
                    returnCode = 20;
                else if(AccountExists(user)) {
                    returnCode = 21;
                    OutStream outstream = new OutStream();
                    suggestions = SuggestedNames(user);
                } else {
                    returnCode = 2;
                }
                OutStream out = new OutStream((suggestions==null)?2:512);
                out.writeByte(returnCode);
                if(returnCode==21) {
                    if(suggestions==null) {
                        out.writeByte(1);
                        out.writeLong(Misc.stringToLong("gtfo"));
                    } else {
                        out.writeByte(suggestions.size());
                        for(String suggestion:suggestions)
                            out.writeLong(Misc.stringToLong(suggestion));
                    }
                }
                c.write(out);
                c.setConnectionStage(Constants.DISCONNECT);
            break;
            case Constants.MAKE_ACC:
                int length = in.readShort();
                int version = in.readShort();
                int b3 = in.readByte();
                int b4 = in.readByte();
                in.skip(26);
                int b1 = in.readByte();
                int s1 = in.readShort();
                String username = Misc.formatPlayerNameForProtocol(Misc.longToString(in.readLong()));
                int s2 = in.readShort();
                String password = in.readString();
                System.out.println("Creating account: "+username+", password: "+password+".");
                long l1 = in.readLong();
                //2 longs or 4 ints client sided
                long l2 = in.readLong();
                long l3 = in.readLong();
                int i1 = in.readInt();
                out = new OutStream(1);
                out.writeByte(2);
                c.write(out);
                Player player = new Player(username, password, new GregorianCalendar(), new GregorianCalendar(), (short) 1, "", (byte) 1);
                Serializer.SaveAccount(player);
            break;
        }
    }
    }