Magic Cube

      /*

      text4.setTextSize(TypedValue.COMPLEX_UNIT_PX, textSize);

      String version = DistortedLibrary.getDriverVersion();

      text4.setText(version);

      */

import org.distorted.network.RubikScores;

import org.distorted.network.RubikScores;

import org.distorted.network.RubikNetwork;

class RubikDialogScoresPagerAdapter extends PagerAdapter implements RubikNetwork.Receiver

      RubikNetwork network = RubikNetwork.getInstance();

      if( mIsSubmitting )  network.submit  ( this, mAct );

      else                 network.download( this, mAct );

import org.distorted.network.RubikScores;

import static org.distorted.network.RubikNetwork.MAX_PLACES;

import org.distorted.network.RubikScores;

import org.distorted.network.RubikScores;

import org.distorted.network.RubikNetwork;

      RubikNetwork.onPause();

import org.distorted.network.RubikScores;

import org.distorted.network.RubikNetwork;

   private boolean mDebugSent;

      if( !mDebugSent )

        {

        mDebugSent= true;

        RubikNetwork network = RubikNetwork.getInstance();

        network.debug( (RubikActivity)mView.getContext());

        }

///////////////////////////////////////////////////////////////////////////////////////////////////

// Copyright 2019 Leszek Koltunski                                                               //

//                                                                                               //

// This file is part of Magic Cube.                                                              //

//                                                                                               //

// Magic Cube is free software: you can redistribute it and/or modify                            //

// it under the terms of the GNU General Public License as published by                          //

// the Free Software Foundation, either version 2 of the License, or                             //

// (at your option) any later version.                                                           //

//                                                                                               //

// Magic Cube is distributed in the hope that it will be useful,                                 //

// but WITHOUT ANY WARRANTY; without even the implied warranty of                                //

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                                 //

// GNU General Public License for more details.                                                  //

//                                                                                               //

// You should have received a copy of the GNU General Public License                             //

// along with Magic Cube.  If not, see <http://www.gnu.org/licenses/>.                           //

///////////////////////////////////////////////////////////////////////////////////////////////////

package org.distorted.network;

import android.app.Activity;

import android.content.pm.PackageInfo;

import android.content.pm.PackageManager;

import androidx.appcompat.app.AppCompatActivity;

import androidx.fragment.app.FragmentActivity;

import org.distorted.library.main.DistortedLibrary;

import org.distorted.objects.ObjectList;

import java.io.InputStream;

import java.net.HttpURLConnection;

import java.net.URL;

import java.net.UnknownHostException;

import java.security.MessageDigest;

import java.security.NoSuchAlgorithmException;

import static org.distorted.objects.ObjectList.MAX_LEVEL;

///////////////////////////////////////////////////////////////////////////////////////////////////

public class RubikNetwork implements Runnable

  {

  public interface Receiver

    {

    void receive(String[][][] country, String[][][] name, float[][][] time);

    void message(String mess);

    void error(String error);

    }

  public static final int MAX_PLACES = 10;

  private static final int DOWNLOAD   = 0;

  private static final int SUBMIT     = 1;

  private static final int DEBUG      = 2;

  private static final int IDLE       = 3;

  private final String[] hex = {

    "%00", "%01", "%02", "%03", "%04", "%05", "%06", "%07",

    "%08", "%09", "%0a", "%0b", "%0c", "%0d", "%0e", "%0f",

    "%10", "%11", "%12", "%13", "%14", "%15", "%16", "%17",

    "%18", "%19", "%1a", "%1b", "%1c", "%1d", "%1e", "%1f",

    "%20", "%21", "%22", "%23", "%24", "%25", "%26", "%27",

    "%28", "%29", "%2a", "%2b", "%2c", "%2d", "%2e", "%2f",

    "%30", "%31", "%32", "%33", "%34", "%35", "%36", "%37",

    "%38", "%39", "%3a", "%3b", "%3c", "%3d", "%3e", "%3f",

    "%40", "%41", "%42", "%43", "%44", "%45", "%46", "%47",

    "%48", "%49", "%4a", "%4b", "%4c", "%4d", "%4e", "%4f",

    "%50", "%51", "%52", "%53", "%54", "%55", "%56", "%57",

    "%58", "%59", "%5a", "%5b", "%5c", "%5d", "%5e", "%5f",

    "%60", "%61", "%62", "%63", "%64", "%65", "%66", "%67",

    "%68", "%69", "%6a", "%6b", "%6c", "%6d", "%6e", "%6f",

    "%70", "%71", "%72", "%73", "%74", "%75", "%76", "%77",

    "%78", "%79", "%7a", "%7b", "%7c", "%7d", "%7e", "%7f",

    "%80", "%81", "%82", "%83", "%84", "%85", "%86", "%87",

    "%88", "%89", "%8a", "%8b", "%8c", "%8d", "%8e", "%8f",

    "%90", "%91", "%92", "%93", "%94", "%95", "%96", "%97",

    "%98", "%99", "%9a", "%9b", "%9c", "%9d", "%9e", "%9f",

    "%a0", "%a1", "%a2", "%a3", "%a4", "%a5", "%a6", "%a7",

    "%a8", "%a9", "%aa", "%ab", "%ac", "%ad", "%ae", "%af",

    "%b0", "%b1", "%b2", "%b3", "%b4", "%b5", "%b6", "%b7",

    "%b8", "%b9", "%ba", "%bb", "%bc", "%bd", "%be", "%bf",

    "%c0", "%c1", "%c2", "%c3", "%c4", "%c5", "%c6", "%c7",

    "%c8", "%c9", "%ca", "%cb", "%cc", "%cd", "%ce", "%cf",

    "%d0", "%d1", "%d2", "%d3", "%d4", "%d5", "%d6", "%d7",

    "%d8", "%d9", "%da", "%db", "%dc", "%dd", "%de", "%df",

    "%e0", "%e1", "%e2", "%e3", "%e4", "%e5", "%e6", "%e7",

    "%e8", "%e9", "%ea", "%eb", "%ec", "%ed", "%ee", "%ef",

    "%f0", "%f1", "%f2", "%f3", "%f4", "%f5", "%f6", "%f7",

    "%f8", "%f9", "%fa", "%fb", "%fc", "%fd", "%fe", "%ff"

    };

  private static final int mTotal = ObjectList.getTotal();

  private static final String[][][] mCountry = new String[mTotal][MAX_LEVEL][MAX_PLACES];

  private static final String[][][] mName    = new String[mTotal][MAX_LEVEL][MAX_PLACES];

  private static final  float[][][] mTime    = new  float[mTotal][MAX_LEVEL][MAX_PLACES];

  private static final int[][] mPlaces = new int[mTotal][MAX_LEVEL];

  private static RubikNetwork mThis;

  private static String mScores = "";

  private static boolean mRunning = false;

  private static int mMode = IDLE;

  private static Receiver mReceiver;

  private static String mVersion;

///////////////////////////////////////////////////////////////////////////////////////////////////

  private static String computeHash(String stringToHash, byte[] salt)

    {

    String generatedPassword;

    try

      {

      MessageDigest md = MessageDigest.getInstance("MD5");

      md.update(salt);

      byte[] bytes = md.digest(stringToHash.getBytes());

      StringBuilder sb = new StringBuilder();

      for (byte aByte : bytes)

        {

        sb.append(Integer.toString((aByte & 0xff) + 0x100, 16).substring(1));

        }

      generatedPassword = sb.toString();

      }

    catch (NoSuchAlgorithmException e)

      {

      return "NoSuchAlgorithm";

      }

    return generatedPassword;

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  private boolean fillValues()

    {

    int begin=-1 ,end, len = mScores.length();

    String row;

    if( len==0 )

      {

      mReceiver.error("1");

      return false;

      }

    else if( len<=2 )

      {

      mReceiver.error(mScores);

      return false;

      }

    for(int i=0; i<mTotal; i++)

      for(int j=0; j<MAX_LEVEL; j++)

        {

        mPlaces[i][j] = 0;

        }

    while( begin<len )

      {

      end = mScores.indexOf('\n', begin+1);

      if( end<0 ) end = len;

      try

        {

        row = mScores.substring(begin+1,end);

        fillRow(row);

        }

      catch(Exception ex)

        {

        // faulty row - ignore

        }

      begin = end;

      }

    return true;

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  private void fillRow(String row)

    {

    int s1 = row.indexOf(' ');

    int s2 = row.indexOf(' ',s1+1);

    int s3 = row.indexOf(' ',s2+1);

    int s4 = row.indexOf(' ',s3+1);

    int s5 = row.length();

    if( s5>s4 && s4>s3 && s3>s2 && s2>s1 && s1>0 )

      {

      int object = ObjectList.unpackObjectFromString( row.substring(0,s1) );

      if( object>=0 && object<mTotal )

        {

        int level      = Integer.parseInt( row.substring(s1+1,s2) );

        String name    = row.substring(s2+1, s3);

        int time       = Integer.parseInt( row.substring(s3+1,s4) );

        String country = row.substring(s4+1, s5);

        if( country.equals("do") ) country = "dm"; // see RubikScores.setCountry()

        if(level>=0 && level<MAX_LEVEL)

          {

          int p = mPlaces[object][level];

          mPlaces[object][level]++;

          mCountry[object][level][p] = country;

          mName   [object][level][p] = name;

          mTime   [object][level][p] = ((float)(time/10))/100.0f;

          }

        }

      }

    else

      {

      tryDoCommand(row);

      }

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  private void tryDoCommand(String row)

    {

    if( row.startsWith("comm") )

      {

      int colon = row.indexOf(':');

      if( colon>0 )

        {

        String commandNumber = row.substring(4,colon);

        int number;

        try

          {

          number = Integer.parseInt(commandNumber);

          }

        catch(NumberFormatException ex)

          {

          number=0;

          }

        if(number==1)

          {

          String country = row.substring(colon+1);

          RubikScores scores = RubikScores.getInstance();

          scores.setCountry(country);

          }

        }

      }

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  private String URLencode(String s)

    {

    StringBuilder sbuf = new StringBuilder();

    int len = s.length();

    for (int i = 0; i < len; i++)

      {

      int ch = s.charAt(i);

           if ('A' <= ch && ch <= 'Z') sbuf.append((char)ch);

      else if ('a' <= ch && ch <= 'z') sbuf.append((char)ch);

      else if ('0' <= ch && ch <= '9') sbuf.append((char)ch);

      else if (ch == ' '             ) sbuf.append('+');

      else if (ch == '-' || ch == '_'

            || ch == '.' || ch == '!'

            || ch == '~' || ch == '*'

            || ch == '\'' || ch == '('

            || ch == ')'             ) sbuf.append((char)ch);

      else if (ch <= 0x007f)           sbuf.append(hex[ch]);

      else if (ch <= 0x07FF)

        {

        sbuf.append(hex[0xc0 | (ch >> 6)]);

        sbuf.append(hex[0x80 | (ch & 0x3F)]);

        }

      else

        {

        sbuf.append(hex[0xe0 | (ch >> 12)]);

        sbuf.append(hex[0x80 | ((ch >> 6) & 0x3F)]);

        sbuf.append(hex[0x80 | (ch & 0x3F)]);

        }

      }

    return sbuf.toString();

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  private void sendDebug()

    {

    String url = constructDebugURL();

    try

      {

      java.net.URL connectURL = new URL(url);

      HttpURLConnection conn = (HttpURLConnection)connectURL.openConnection();

      conn.setDoInput(true);

      conn.setDoOutput(true);

      conn.setUseCaches(false);

      conn.setRequestMethod("GET");

      conn.connect();

      conn.getOutputStream().flush();

      conn.getInputStream();

      }

    catch( final Exception e )

      {

      // ignore

      }

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  private boolean network(String url)

    {

    try

      {

      java.net.URL connectURL = new URL(url);

      HttpURLConnection conn = (HttpURLConnection)connectURL.openConnection();

      conn.setDoInput(true);

      conn.setDoOutput(true);

      conn.setUseCaches(false);

      conn.setRequestMethod("GET");

      conn.connect();

      conn.getOutputStream().flush();

      try( InputStream is = conn.getInputStream() )

        {

        int ch;

        StringBuilder sb = new StringBuilder();

        while( ( ch = is.read() ) != -1 )

          {

          sb.append( (char)ch );

          }

        mScores = sb.toString();

        }

      catch( final Exception e)

        {

        mReceiver.message("Failed to get an answer from the High Scores server");

        return false;

        }

      }

    catch( final UnknownHostException e )

      {

      mReceiver.message("No access to Internet");

      return false;

      }

    catch( final SecurityException e )

      {

      mReceiver.message("Application not authorized to connect to the Internet");

      return false;

      }

    catch( final Exception e )

      {

      mReceiver.message(e.getMessage());

      return false;

      }

    if( mScores.length()==0 )

      {

      mReceiver.message("Failed to download scores");

      return false;

      }

    return true;

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  private String constructDebugURL()

    {

    RubikScores scores = RubikScores.getInstance();

    String name = URLencode(scores.getName());

    int numRuns = scores.getNumRuns();

    int numPlay = scores.getNumPlays();

    String country = scores.getCountry();

    String renderer = DistortedLibrary.getDriverRenderer();

    String version  = DistortedLibrary.getDriverVersion();

    renderer = URLencode(renderer);

    version  = URLencode(version);

    String url="https://distorted.org/magic/cgi-bin/debugs.cgi";

    url += "?n="+name+"&r="+numRuns+"&p="+numPlay+"&c="+country+"&e="+mVersion+"d"+"&d="+renderer+"&v="+version;

    return url;

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  private String constructDownloadURL()

    {

    RubikScores scores = RubikScores.getInstance();

    String name = URLencode(scores.getName());

    String veri = scores.isVerified() ? name : "";

    int numRuns = scores.getNumRuns();

    int numPlay = scores.getNumPlays();

    String country = scores.getCountry();

    String url="https://distorted.org/magic/cgi-bin/download.cgi";

    url += "?n="+name+"&v="+veri+"&r="+numRuns+"&p="+numPlay+"&c="+country+"&e="+mVersion+"d";

    url += "&o="+ ObjectList.getObjectList()+"&min=0&max="+MAX_LEVEL+"&l="+MAX_PLACES;

    return url;

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  private String constructSubmitURL()

    {

    RubikScores scores = RubikScores.getInstance();

    String name = URLencode(scores.getName());

    String veri = scores.isVerified() ? name : "";

    int numRuns = scores.getNumRuns();

    int numPlay = scores.getNumPlays();

    int deviceID= scores.getDeviceID();

    String reclist = scores.getRecordList("&o=","&l=","&t=");

    String country = scores.getCountry();

    long epoch = System.currentTimeMillis();

    String salt = "cuboid";

    String url1="https://distorted.org/magic/cgi-bin/submit.cgi";

    String url2 = "n="+name+"&v="+veri+"&r="+numRuns+"&p="+numPlay+"&i="+deviceID+"&e="+mVersion+"d";

    url2 += reclist+"&c="+country+"&f="+epoch+"&oo="+ ObjectList.getObjectList();

    url2 += "&min=0&max="+MAX_LEVEL+"&lo="+MAX_PLACES;

    String hash = computeHash( url2, salt.getBytes() );

    return url1 + "?" + url2 + "&h=" + hash;

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  private boolean gottaDownload()

    {

    return ((mScores.length()==0) && !mRunning);

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  @Override

  public void run()

    {

    boolean receiveValues=true;

    try

      {

      if( mMode==DOWNLOAD && gottaDownload() )

        {

        mRunning = true;

        receiveValues = network(constructDownloadURL());

        }

      if( mMode==SUBMIT )

        {

        mRunning = true;

        if( RubikScores.getInstance().thereAreUnsubmittedRecords() )

          {

          receiveValues = network(constructSubmitURL());

          }

        }

      if( mMode==DEBUG )

        {

        sendDebug();

        receiveValues = false;

        mRunning = false;

        }

      }

    catch( Exception e )

      {

      if( mReceiver!=null ) mReceiver.message("Exception downloading records: "+e.getMessage() );

      }

    if( mRunning )

      {

      receiveValues = fillValues();

      mRunning = false;

      }

    if( receiveValues )

      {

      if( mReceiver!=null ) mReceiver.receive(mCountry, mName, mTime);

      if( mMode==SUBMIT )

        {

        RubikScores.getInstance().successfulSubmit();

        }

      }

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  private RubikNetwork()

    {

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

// PUBLIC API

///////////////////////////////////////////////////////////////////////////////////////////////////

  public static void onPause()

    {

    mRunning = false;

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public static RubikNetwork getInstance()

    {

    if( mThis==null )

      {

      mThis = new RubikNetwork();

      }

    return mThis;

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  private void start(Receiver receiver, Activity act, int mode)

    {

    mReceiver = receiver;

    mMode     = mode;

    try

      {

      PackageInfo pInfo = act.getPackageManager().getPackageInfo( act.getPackageName(), 0);

      mVersion = pInfo.versionName;

      }

    catch (PackageManager.NameNotFoundException e)

      {

      mVersion = "0.9.2";

      }

    Thread networkThrd = new Thread(this);

    networkThrd.start();

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public void download(Receiver receiver, FragmentActivity act)

    {

    start(receiver, act, DOWNLOAD);

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public void submit(Receiver receiver, FragmentActivity act)

    {

    start(receiver, act, SUBMIT);

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public void debug(AppCompatActivity act)

    {

    start(null, act, DEBUG);

    }

}

///////////////////////////////////////////////////////////////////////////////////////////////////

// Copyright 2020 Leszek Koltunski                                                               //

//                                                                                               //

// This file is part of Magic Cube.                                                              //

//                                                                                               //

// Magic Cube is free software: you can redistribute it and/or modify                            //

// it under the terms of the GNU General Public License as published by                          //

// the Free Software Foundation, either version 2 of the License, or                             //

// (at your option) any later version.                                                           //

//                                                                                               //

// Magic Cube is distributed in the hope that it will be useful,                                 //

// but WITHOUT ANY WARRANTY; without even the implied warranty of                                //

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                                 //

// GNU General Public License for more details.                                                  //

//                                                                                               //

// You should have received a copy of the GNU General Public License                             //

// along with Magic Cube.  If not, see <http://www.gnu.org/licenses/>.                           //

///////////////////////////////////////////////////////////////////////////////////////////////////

package org.distorted.network;

import android.content.Context;

import android.content.SharedPreferences;

import android.telephony.TelephonyManager;

import com.google.firebase.crashlytics.FirebaseCrashlytics;

import org.distorted.main.BuildConfig;

import org.distorted.objects.ObjectList;

import java.util.UUID;

import static org.distorted.objects.ObjectList.MAX_NUM_OBJECTS;

import static org.distorted.objects.ObjectList.NUM_OBJECTS;

import static org.distorted.objects.ObjectList.MAX_LEVEL;

///////////////////////////////////////////////////////////////////////////////////////////////////

// hold my own scores, and some other statistics.

public class RubikScores

  {

  public static final long NO_RECORD = Long.MAX_VALUE;

  private static RubikScores mThis;

  private final long[][][] mRecords;

  private final int [][][] mSubmitted;

  private String mName, mCountry;

  private boolean mNameIsVerified;

  private int mNumRuns;

  private int mNumPlays;

  private int mNumWins;

  private int mDeviceID;

///////////////////////////////////////////////////////////////////////////////////////////////////

  private RubikScores()

    {

    mRecords   = new long[NUM_OBJECTS][MAX_NUM_OBJECTS][MAX_LEVEL];

    mSubmitted = new int [NUM_OBJECTS][MAX_NUM_OBJECTS][MAX_LEVEL];

    for(int i=0; i<NUM_OBJECTS; i++)

      for(int j=0; j<MAX_NUM_OBJECTS; j++)

        for(int k=0; k<MAX_LEVEL; k++)

          {

          mRecords[i][j][k]   = NO_RECORD;

          mSubmitted[i][j][k] = 0;

          }

    mName = "";

    mCountry = "un";

    mNameIsVerified = false;

    mNumPlays= -1;

    mNumRuns = -1;

    mDeviceID= -1;

    mNumWins =  0;

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  private int privateGetDeviceID()

    {

    int id;

    try

      {

      String s = UUID.randomUUID().toString();

      id = s.hashCode();

      }

    catch(Exception ex)

      {

      id = 0;

      android.util.Log.e("scores", "Exception in getDeviceID()");

      }

    return id<0 ? -id : id;

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  synchronized void successfulSubmit()

    {

    mNameIsVerified = true;

    for(int i=0; i<NUM_OBJECTS; i++)

      for(int j=0; j<MAX_NUM_OBJECTS; j++)

        for(int k=0; k<MAX_LEVEL; k++)

          {

          mSubmitted[i][j][k]=1;

          }

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  int getDeviceID()

    {

    return mDeviceID;

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  synchronized boolean thereAreUnsubmittedRecords()

    {

    ObjectList list;

    int length;

    for(int object=0; object<NUM_OBJECTS; object++)

      {

      list = ObjectList.getObject(object);

      length = list.getSizes().length;

      for(int size=0; size<length; size++)

        for(int level=0; level<MAX_LEVEL; level++)

          {

          if( mSubmitted[object][size][level]==0 && mRecords[object][size][level]<NO_RECORD )

            {

            return true;

            }

          }

      }

    return false;

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  synchronized String getRecordList(String strObj, String strLvl, String strTim)

    {

    ObjectList list;

    StringBuilder builderObj = new StringBuilder();

    StringBuilder builderLvl = new StringBuilder();

    StringBuilder builderTim = new StringBuilder();

    boolean first = true;

    int[] sizes;

    int length;

    for(int object=0; object<NUM_OBJECTS; object++)

      {

      list = ObjectList.getObject(object);

      sizes = list.getSizes();

      length = sizes.length;

      for(int size=0; size<length; size++)

        {

        for(int level=0; level<MAX_LEVEL; level++)

          {

          if( mSubmitted[object][size][level]==0 && mRecords[object][size][level]<NO_RECORD )

            {

            if( !first )

              {

              builderObj.append(',');

              builderLvl.append(',');

              builderTim.append(',');

              }

            else

              {

              first=false;

              }

            builderObj.append(list.name());

            builderObj.append("_");

            builderObj.append(sizes[size]);

            builderLvl.append(level);

            builderTim.append(mRecords[object][size][level]);

            }

          }

        }

      }

    return strObj+builderObj.toString()+strLvl+builderLvl.toString()+strTim+builderTim.toString();

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

// Public API

///////////////////////////////////////////////////////////////////////////////////////////////////

  public synchronized long getRecord(int object, int size, int level)

    {

    int maxsize = ObjectList.getObject(object).getSizes().length;

    if( object>=0 && object<NUM_OBJECTS && size>=0 && size<maxsize && level>=0 && level<MAX_LEVEL )

      {

      return mRecords[object][size][level];

      }

    return -1;

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public synchronized boolean isSubmitted(int object, int size, int level)

    {

    int maxsize = ObjectList.getObject(object).getSizes().length;

    if( object>=0 && object<NUM_OBJECTS && size>=0 && size<maxsize && level>=0 && level<MAX_LEVEL )

      {

      return mSubmitted[object][size][level]==1;

      }

    return false;

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public boolean isVerified()

    {

    return mNameIsVerified;

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public int getNumPlays()

    {

    return mNumPlays;

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public int getNumRuns()

    {

    return mNumRuns;

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public String getName()

    {

    return mName;

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public String getCountry()

    {

    return mCountry;

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public void incrementNumPlays()

    {

    mNumPlays++;

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public void incrementNumRuns()

    {

    mNumRuns++;

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public int incrementNumWins()

    {

    mNumWins++;

    return mNumWins;

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public void setName(String newName)

    {

    mName = newName;

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public synchronized boolean isSolved(int object, int size, int level)

    {

    int maxsize = ObjectList.getObject(object).getSizes().length;

    if( object>=0 && object<NUM_OBJECTS && size>=0 && size<maxsize && level>=0 && level<MAX_LEVEL )

      {

      return mRecords[object][size][level]<NO_RECORD;

      }

    return false;

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public void setCountry(Context context)

    {

    TelephonyManager tM =((TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE));

    if( tM!=null )

      {

      mCountry = tM.getSimCountryIso();

      if( mCountry==null || mCountry.length()<=1 )

        {

        mCountry = tM.getNetworkCountryIso();

        }

      }

    // Special case: Dominicana. Its ISO-3166-alpha-2 country code is 'do' which we can't have here

    // because we later on map this to a resource name (the flag) and 'do' is a reserved Java keyword

    // and can't be a resource name.

    if( mCountry.equals("do") ) mCountry = "dm";

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public void setCountry(String country)

    {

    mCountry = country;

    if( mCountry.equals("do") ) mCountry = "dm";  // see above

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public static RubikScores getInstance()

    {

    if( mThis==null )

      {

      mThis = new RubikScores();

      }

    return mThis;

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public synchronized void savePreferences(SharedPreferences.Editor editor)

    {

    StringBuilder builder = new StringBuilder();

    ObjectList list;

    int[] sizes;

    int length;

    for(int level=0; level<MAX_LEVEL; level++)

      {

      builder.setLength(0);

      for(int object=0; object<NUM_OBJECTS; object++)

        {

        list = ObjectList.getObject(object);

        sizes = list.getSizes();

        length = sizes.length;

        for(int size=0; size<length; size++)

          {

          builder.append(list.name());

          builder.append("_");

          builder.append(sizes[size]);

          builder.append("=");

          builder.append(mRecords[object][size][level]);

          builder.append(",");

          builder.append(mSubmitted[object][size][level]);

          builder.append(" ");

          }

        }

      editor.putString("scores_record"+level, builder.toString());

      }

    editor.putString("scores_name"  , mName  );

    editor.putBoolean("scores_isVerified", mNameIsVerified);

    editor.putInt("scores_numPlays", mNumPlays);

    editor.putInt("scores_numRuns" , mNumRuns );

    editor.putInt("scores_deviceid", mDeviceID);

    editor.putInt("scores_review"  , mNumWins );

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public synchronized void restorePreferences(SharedPreferences preferences)

    {

    String recordStr, subStr, nameStr, sizeStr, timeStr, submStr, errorStr="";

    int start, end, equals, underscore, comma;

    int object, sizeIndex, subm;

    long time;

    boolean thereWasError = false;

    for(int level=0; level<MAX_LEVEL; level++)

      {

      start = end = 0;

      recordStr = preferences.getString("scores_record"+level, "");

      while( end!=-1 )

        {

        end = recordStr.indexOf(" ", start);

        if( end==-1 ) subStr = recordStr.substring(start);

        else          subStr = recordStr.substring(start,end);

        start = end+1;

        underscore = subStr.indexOf("_");

        equals = subStr.indexOf("=");

        comma = subStr.indexOf(",");

        if( underscore>=0 && equals>=0 && comma>=0 )

          {

          nameStr = subStr.substring(0,underscore);

          sizeStr = subStr.substring(underscore+1, equals);

          timeStr = subStr.substring(equals+1,comma);

          submStr = subStr.substring(comma+1);

          object = ObjectList.getOrdinal(nameStr);

          if( object>=0 && object< NUM_OBJECTS )

            {

            sizeIndex = ObjectList.getSizeIndex(object,Integer.parseInt(sizeStr));

            time = Long.parseLong(timeStr);

            subm = Integer.parseInt(submStr);

            if( sizeIndex>=0 && sizeIndex<MAX_NUM_OBJECTS && subm>=0 && subm<=1 )

              {

              mRecords  [object][sizeIndex][level] = time;

              mSubmitted[object][sizeIndex][level] = subm;

              }

            else

              {

              errorStr += ("error1: size="+sizeIndex+" subm="+subm+" obj: "+nameStr+" size: "+sizeStr+"\n");

              thereWasError= true;

              }

            }

          else

            {

            errorStr += ("error2: object="+object+" obj: "+nameStr+" size: "+sizeStr+"\n");

            thereWasError = true;

            }

          }

        }

      }

    mName           = preferences.getString("scores_name"  , "" );

    mNameIsVerified = preferences.getBoolean("scores_isVerified", false);

    mNumPlays       = preferences.getInt("scores_numPlays", 0);

    mNumRuns        = preferences.getInt("scores_numRuns" , 0);

    mDeviceID       = preferences.getInt("scores_deviceid",-1);

    mNumWins        = preferences.getInt("scores_review"  , 0);

    if( mDeviceID==-1 ) mDeviceID = privateGetDeviceID();

    if( thereWasError ) recordDBError(errorStr);

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public void recordDBError(String message)

    {

    if( BuildConfig.DEBUG )

      {

      android.util.Log.e("scores", message);

      }

    else

      {

      Exception ex = new Exception(message);

      FirebaseCrashlytics crashlytics = FirebaseCrashlytics.getInstance();

      crashlytics.setCustomKey("scores" , message);

      crashlytics.recordException(ex);

      }

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public synchronized boolean setRecord(int object, int size, int level, long timeTaken)

    {

    int maxsize = ObjectList.getObject(object).getSizes().length;

    if( object>=0 && object<NUM_OBJECTS && size>=0 && size<maxsize && level>=1 && level<=MAX_LEVEL )

      {

      if( mRecords[object][size][level-1]> timeTaken )

        {

        mRecords  [object][size][level-1] = timeTaken;

        mSubmitted[object][size][level-1] = 0;

        return true;

        }

      }

    return false;

    }

  }

android.util.Log.e("D",

CUBITS[ 0].mQuatIndex+" "+

CUBITS[ 1].mQuatIndex+" "+

CUBITS[ 2].mQuatIndex+" "+

CUBITS[ 3].mQuatIndex+" "+

CUBITS[ 4].mQuatIndex+" "+

CUBITS[ 5].mQuatIndex+" "+

CUBITS[ 6].mQuatIndex+" "+

CUBITS[ 7].mQuatIndex+" "+

CUBITS[ 8].mQuatIndex+" "+

CUBITS[ 9].mQuatIndex+" "+

CUBITS[10].mQuatIndex+" "+

CUBITS[11].mQuatIndex

);

    if (CUBITS[3].mQuatIndex != mulQuat(redX,2))

      {

      android.util.Log.e("D", "FALSE 1");

      return false;

      }

    if (CUBITS[7].mQuatIndex != mulQuat(redX,8))

      {

      android.util.Log.e("D", "FALSE 2");

      return false;

      }

    if (CUBITS[1].mQuatIndex != mulQuat(bluX,2))

      {

      android.util.Log.e("D", "FALSE 3");

      return false;

      }

    if (CUBITS[5].mQuatIndex != mulQuat(bluX,8))

      {

      android.util.Log.e("D", "FALSE 4");

      return false;

      }

    if (CUBITS[9].mQuatIndex != mulQuat(yelX,2))

      {

      android.util.Log.e("D", "FALSE 5");

      return false;

      }

    if (CUBITS[4].mQuatIndex != mulQuat(yelX,8))

      {

      android.util.Log.e("D", "FALSE 6");

      return false;

      }