/** Called when the activity is first created */
  @Override
  public void onCreate(Bundle savedInstanceState) {
    Log.d(TAG, "LoaderActivity created");
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.content);

    // Instantiate custom adapter
    mAdapter = new LoaderAdapter();

    // Handle listview and assign adapter
    mListView = (ListView) findViewById(R.id.content_list_view);
    mListView.setAdapter(mAdapter);
    mListView.setVisibility(View.GONE);
    mListView.setOnItemLongClickListener(
        new AdapterView.OnItemLongClickListener() {
          public boolean onItemLongClick(AdapterView parent, View view, int position, long id) {
            selectItem(position);
            return true;
          }
        });

    mStatusLabel = (TextView) findViewById(R.id.content_status_label);
    mStatusLabel.setVisibility(View.VISIBLE);

    String userHash = NavigineApp.Settings.getString("user_hash", "");
    if (userHash.length() == 0) showUserHashDialog();
    else refreshMapList();
  }
 @Override
 public boolean onCreateOptionsMenu(Menu menu) {
   Log.d(TAG, "Create menu options");
   MenuInflater inflater = getMenuInflater();
   inflater.inflate(R.menu.loader_menu, menu);
   menu.findItem(R.id.loader_menu_refresh_map_list).setVisible(mLoader < 0);
   return true;
 }
  @Override
  public void onPause() {
    Log.d(TAG, "LoaderActivity paused");
    super.onPause();

    mTimerTask.cancel();
    mTimerTask = null;
  }
  private void updateLoader() {
    if (NavigineApp.Navigation == null) return;

    // Log.d(TAG, String.format(Locale.ENGLISH, "Update loader: %d", mLoader));

    long timeNow = DateTimeUtils.currentTimeMillis();
    if (mLoader < 0) return;

    int status = LocationLoader.checkLocationLoader(mLoader);
    if (status < 100) {
      if ((Math.abs(timeNow - mLoaderTime) > LOADER_TIMEOUT / 3 && status == 0)
          || (Math.abs(timeNow - mLoaderTime) > LOADER_TIMEOUT)) {
        mListView.setVisibility(View.GONE);
        mStatusLabel.setVisibility(View.VISIBLE);
        mStatusLabel.setText("Loading timeout!\nPlease, check your internet connection!");
        Log.d(TAG, String.format(Locale.ENGLISH, "Load stopped on timeout!"));
        LocationLoader.stopLocationLoader(mLoader);
        mLoader = -1;
      } else {
        mListView.setVisibility(View.GONE);
        mStatusLabel.setVisibility(View.VISIBLE);
        mStatusLabel.setText(String.format(Locale.ENGLISH, "Loading content (%d%%)", status));
      }
    } else {
      Log.d(TAG, String.format(Locale.ENGLISH, "Load finished with result: %d", status));
      LocationLoader.stopLocationLoader(mLoader);
      mLoader = -1;

      if (status == 100) {
        parseMapsXml();
        if (mInfoList.isEmpty()) {
          mListView.setVisibility(View.GONE);
          mStatusLabel.setVisibility(View.VISIBLE);
          mStatusLabel.setText("No locations available");
        } else {
          mListView.setVisibility(View.VISIBLE);
          mStatusLabel.setVisibility(View.GONE);
        }
      } else {
        mListView.setVisibility(View.GONE);
        mStatusLabel.setVisibility(View.VISIBLE);
        mStatusLabel.setText("Error loading!\nPlease, check your ID!");
      }
    }
  }
  private void refreshMapList() {
    if (mLoader >= 0) return;

    String userHash = NavigineApp.Settings.getString("user_hash", "");
    if (userHash.length() == 0) return;

    // Starting new loader
    String fileName = LocationLoader.getLocationDir(NavigineApp.AppContext, null) + "/maps.xml";
    new File(fileName).delete();
    mLoader = LocationLoader.startLocationLoader(null, fileName, true);
    mLoaderTime = DateTimeUtils.currentTimeMillis();
    mInfoList = new ArrayList<LocationInfo>();
    Log.d(TAG, String.format(Locale.ENGLISH, "Location loader started: %d", mLoader));
  }
  @Override
  public void onResume() {
    Log.d(TAG, "LoaderActivity resumed");
    super.onResume();

    // Starting interface updates
    mTimerTask =
        new TimerTask() {
          @Override
          public void run() {
            mHandler.post(mRunnable);
          }
        };
    mTimer.schedule(mTimerTask, 100, 100);
  }
  private void updateLocationLoaders() {
    if (NavigineApp.Navigation == null) return;

    long timeNow = DateTimeUtils.currentTimeMillis();
    mUpdateLocationLoadersTime = timeNow;

    synchronized (mLoaderMap) {
      Iterator<Map.Entry<String, LoaderState>> iter = mLoaderMap.entrySet().iterator();
      while (iter.hasNext()) {
        Map.Entry<String, LoaderState> entry = iter.next();

        LoaderState loader = entry.getValue();
        if (loader.state < 100) {
          loader.timeLabel = timeNow;
          if (loader.type == DOWNLOAD) loader.state = LocationLoader.checkLocationLoader(loader.id);
          if (loader.type == UPLOAD) loader.state = LocationLoader.checkLocationUploader(loader.id);
        } else if (loader.state == 100) {
          String archivePath = NavigineApp.Navigation.getArchivePath();
          String locationFile =
              LocationLoader.getLocationFile(NavigineApp.AppContext, loader.location);
          if (archivePath != null && archivePath.equals(locationFile)) {
            Log.d(TAG, "Reloading archive " + archivePath);
            if (NavigineApp.Navigation.loadArchive(archivePath)) {
              SharedPreferences.Editor editor = NavigineApp.Settings.edit();
              editor.putString("map_file", archivePath);
              editor.commit();
            }
          }
          if (loader.type == DOWNLOAD) LocationLoader.stopLocationLoader(loader.id);
          if (loader.type == UPLOAD) LocationLoader.stopLocationUploader(loader.id);
          iter.remove();
        } else {
          // Load failed
          if (Math.abs(timeNow - loader.timeLabel) > 5000) {
            if (loader.type == DOWNLOAD) LocationLoader.stopLocationLoader(loader.id);
            if (loader.type == UPLOAD) LocationLoader.stopLocationUploader(loader.id);
            iter.remove();
          }
        }
      }
    }
    updateLocalVersions();
    mAdapter.updateList();
  }
  private void startUpload(int index) {
    if (NavigineApp.Navigation == null) return;

    String userHash = NavigineApp.Settings.getString("user_hash", "");
    if (userHash.length() == 0) return;

    LocationInfo info = mInfoList.get(index);
    String location = new String(info.title);
    Log.d(TAG, String.format(Locale.ENGLISH, "Start upload: %s", location));

    synchronized (mLoaderMap) {
      if (!mLoaderMap.containsKey(location)) {
        LoaderState loader = new LoaderState();
        loader.location = location;
        loader.type = UPLOAD;
        loader.id = LocationLoader.startLocationUploader(location, info.archiveFile, true);
        mLoaderMap.put(location, loader);
      }
    }
    mAdapter.updateList();
  }
 @Override
 public boolean onPrepareOptionsMenu(Menu menu) {
   Log.d(TAG, "Prepare menu options");
   menu.findItem(R.id.loader_menu_refresh_map_list).setVisible(mLoader < 0);
   return true;
 }
 @Override
 public void onDestroy() {
   Log.d(TAG, "LoaderActivity destroyed");
   super.onDestroy();
 }