Import bookmarks from assets if the database is empty

app/src/main/java/acr/browser/lightning/app/BrowserApp.java

@@ -23,6 +23,7 @@ import javax.inject.Inject;
 
 import acr.browser.lightning.BuildConfig;
 import acr.browser.lightning.database.HistoryItem;
+import acr.browser.lightning.database.bookmark.BookmarkExporter;
 import acr.browser.lightning.database.bookmark.legacy.LegacyBookmarkManager;
 import acr.browser.lightning.database.bookmark.BookmarkModel;
 import acr.browser.lightning.preference.PreferenceManager;
@@ -88,7 +89,10 @@ public class BrowserApp extends Application {
                 if (!oldBookmarks.isEmpty()) {
                     mBookmarkModel.addBookmarkList(oldBookmarks).subscribeOn(Schedulers.io()).subscribe();
                 } else {
-                    // TODO: 5/7/17 Import bookmarks from assets if not empty
+                    if (mBookmarkModel.count() == 0) {
+                        List<HistoryItem> assetsBookmarks = BookmarkExporter.importBookmarksFromAssets(BrowserApp.this);
+                        mBookmarkModel.addBookmarkList(assetsBookmarks).subscribeOn(Schedulers.io()).subscribe();
+                    }
                 }
             }
         });

app/src/main/java/acr/browser/lightning/database/bookmark/BookmarkDatabase.java

@@ -374,4 +374,9 @@ public class BookmarkDatabase extends SQLiteOpenHelper implements BookmarkModel
         });
     }
 
+    @Override
+    public long count() {
+        return DatabaseUtils.queryNumEntries(lazyDatabase(), TABLE_BOOKMARK);
+    }
+
 }

app/src/main/java/acr/browser/lightning/database/bookmark/BookmarkModel.java

@@ -2,6 +2,7 @@ package acr.browser.lightning.database.bookmark;
 
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
+import android.support.annotation.WorkerThread;
 
 import com.anthonycr.bonsai.Completable;
 import com.anthonycr.bonsai.Single;
@@ -151,4 +152,14 @@ public interface BookmarkModel {
      */
     @NonNull
     Single<List<String>> getFolderNames();
+
+    /**
+     * A synchronous call to the model
+     * that returns the number of bookmarks.
+     * Should be called from a background thread.
+     *
+     * @return the number of bookmarks in the database.
+     */
+    @WorkerThread
+    long count();
 }

app/src/main/java/acr/browser/lightning/database/bookmark/legacy/LegacyBookmarkManager.java

@@ -27,7 +27,7 @@ import acr.browser.lightning.utils.Utils;
 @Deprecated
 public class LegacyBookmarkManager {
 
-    private static final String TAG = "BookmarkManager";
+    private static final String TAG = "LegacyBookmarkManager";
 
     private static final String TITLE = "title";
     private static final String URL = "url";