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package cgeo.geocaching.utils;
import cgeo.geocaching.DataStore;
import cgeo.geocaching.MainActivity;
import cgeo.geocaching.R;
import cgeo.geocaching.ui.dialog.Dialogs;
import org.apache.commons.lang3.StringUtils;
import org.eclipse.jdt.annotation.NonNull;
import org.eclipse.jdt.annotation.Nullable;
import rx.functions.Action0;
import rx.functions.Action1;
import rx.functions.Func0;
import rx.schedulers.Schedulers;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.res.Resources;
import java.io.File;
import java.util.concurrent.atomic.AtomicBoolean;
public class DatabaseBackupUtils {
private DatabaseBackupUtils() {
// utility class
}
/**
* After confirming to overwrite the existing caches on the devices, restore the database in a new thread, showing a
* progress window
*
* @param activity
* calling activity
*/
public static void restoreDatabase(final Activity activity) {
if (!hasBackup()) {
return;
}
final int caches = DataStore.getAllCachesCount();
if (caches == 0) {
restoreDatabaseInternal(activity);
}
else {
Dialogs.confirm(activity, R.string.init_backup_restore, activity.getString(R.string.restore_confirm_overwrite, activity.getResources().getQuantityString(R.plurals.cache_counts, caches, caches)), new OnClickListener() {
@Override
public void onClick(final DialogInterface dialog, final int which) {
restoreDatabaseInternal(activity);
}
});
}
}
private static void restoreDatabaseInternal(final Activity activity) {
final Resources res = activity.getResources();
final ProgressDialog dialog = ProgressDialog.show(activity, res.getString(R.string.init_backup_restore), res.getString(R.string.init_restore_running), true, false);
final AtomicBoolean restoreSuccessful = new AtomicBoolean(false);
RxUtils.andThenOnUi(Schedulers.io(), new Action0() {
@Override
public void call() {
restoreSuccessful.set(DataStore.restoreDatabaseInternal());
}
}, new Action0() {
@Override
public void call() {
dialog.dismiss();
final boolean restored = restoreSuccessful.get();
final String message = restored ? res.getString(R.string.init_restore_success) : res.getString(R.string.init_restore_failed);
Dialogs.message(activity, R.string.init_backup_restore, message);
if (activity instanceof MainActivity) {
((MainActivity) activity).updateCacheCounter();
}
}
});
}
/**
* Create a backup after confirming to overwrite the existing backup.
*
*/
public static void createBackup(final Activity activity, final Runnable runAfterwards) {
// avoid overwriting an existing backup with an empty database
// (can happen directly after reinstalling the app)
if (DataStore.getAllCachesCount() == 0) {
Dialogs.message(activity, R.string.init_backup, R.string.init_backup_unnecessary);
return;
}
if (hasBackup()) {
Dialogs.confirm(activity, R.string.init_backup, activity.getString(R.string.backup_confirm_overwrite, getBackupDateTime()), new OnClickListener() {
@Override
public void onClick(final DialogInterface dialog, final int which) {
createBackupInternal(activity, runAfterwards);
}
});
}
else {
createBackupInternal(activity, runAfterwards);
}
}
private static void createBackupInternal(final Activity activity, final Runnable runAfterwards) {
final ProgressDialog dialog = ProgressDialog.show(activity,
activity.getString(R.string.init_backup),
activity.getString(R.string.init_backup_running), true, false);
RxUtils.andThenOnUi(Schedulers.io(), new Func0<String>() {
@Override
public String call() {
return DataStore.backupDatabaseInternal();
}
}, new Action1<String>() {
@Override
public void call(final String backupFileName) {
dialog.dismiss();
Dialogs.message(activity,
R.string.init_backup_backup,
backupFileName != null
? activity.getString(R.string.init_backup_success)
+ "\n" + backupFileName
: activity.getString(R.string.init_backup_failed));
if (runAfterwards != null) {
runAfterwards.run();
}
}
});
}
@Nullable
public static File getRestoreFile() {
final File fileSourceFile = DataStore.getBackupFileInternal();
return fileSourceFile.exists() && fileSourceFile.length() > 0 ? fileSourceFile : null;
}
public static boolean hasBackup() {
return getRestoreFile() != null;
}
@NonNull
public static String getBackupDateTime() {
final File restoreFile = getRestoreFile();
if (restoreFile == null) {
return StringUtils.EMPTY;
}
return Formatter.formatShortDateTime(restoreFile.lastModified());
}
}
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