validateDB.java

private boolean validateDB() {
        //One - DB might be corrupt with some wrong data flow.
        //Two - Restoring using a bad file (Possibly, not a DB file).
            appDatabase = AppDatabase.getAppDatabase(getApplicationContext());
            if (sharedPreferences.getBoolean("restoringDatabase", false)) {
                sharedPreferences.edit().putBoolean("restoringDatabase", false).apply();
                //Check if restore has been done properly and delete the backupCheckpoint.
                if (appDatabase.userDao().getUserCount() <= 0) {
                    //reset the file and delete the restoredFile. Alert the user of the same.
                    if (restoreDatabase()) {
                        //File successfully restored. Delete the backup file.
                        restoreSuccessDialog();
                        deleteRestoreBackupFile(getApplicationContext());
                    } else {
                        //File probably deleted or some other issue. Alert here with flushing DB.
                        flushDB();
                        resetScreen();
                        restoreFailureDialog();
                    }
                    return false;
                }
            } else {
                if (appDatabase.userDao().getUserCount() <= 0) {
                    //Alert here that no user so DB flushed.
                    //Flush DB, take user to Name screen, delete restore File if present and create a new one.
                    flushDB();
                    resetScreen();
                    deleteRestoreBackupFile(getApplicationContext());
                    backupDatabaseForRestore(this, getApplicationContext());
                    dbIssueDialog();
                    return false;
                }
            }
        return true;
    }