Validate account when checking if sync is enabled

src/generic/java/org/tasks/AccountManager.java

@@ -14,4 +14,8 @@ public class AccountManager {
     public List<String> getAccounts() {
         return Collections.emptyList();
     }
+
+    public boolean hasAccount(String account) {
+        return false;
+    }
 }

src/googleplay/java/org/tasks/scheduling/GtasksBackgroundService.java

@@ -31,7 +31,7 @@ public class GtasksBackgroundService extends RecurringIntervalIntentService {
             Timber.d("aborting: sync ongoing");
             return;
         }
-        if(gtasksPreferenceService.isLoggedIn() && gtasksSyncV2Provider.isActive()) {
+        if(gtasksSyncV2Provider.isActive()) {
             gtasksSyncV2Provider.synchronizeActiveTasks(new RecordSyncStatusCallback(gtasksPreferenceService, broadcaster));
         }
     }

src/googleplay/res/values/bools.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <bool name="sync_enabled">true</bool>
+    <bool name="sync_supported">true</bool>
     <bool name="location_enabled">true</bool>
     <bool name="google_play_store_available">true</bool>
 </resources>

src/main/java/com/todoroo/astrid/gtasks/GtasksPreferenceService.java

@@ -9,16 +9,14 @@ import android.content.Context;
 
 import com.todoroo.andlib.utility.DateUtilities;
 
+import org.tasks.AccountManager;
 import org.tasks.R;
 import org.tasks.injection.ForApplication;
-import org.tasks.preferences.PermissionChecker;
 import org.tasks.preferences.Preferences;
 
 import javax.inject.Inject;
 import javax.inject.Singleton;
 
-import static com.google.common.base.Strings.isNullOrEmpty;
-
 /**
  * Methods for working with GTasks preferences
  *
@@ -28,9 +26,9 @@ import static com.google.common.base.Strings.isNullOrEmpty;
 @Singleton
 public class GtasksPreferenceService {
 
-    private Context context;
+    private final Context context;
     private final Preferences preferences;
-    private PermissionChecker permissionChecker;
+    private final AccountManager accountManager;
 
     public static final String IDENTIFIER = "gtasks"; //$NON-NLS-1$
 
@@ -39,10 +37,10 @@ public class GtasksPreferenceService {
 
     @Inject
     public GtasksPreferenceService(@ForApplication Context context, Preferences preferences,
-                                   PermissionChecker permissionChecker) {
+                                   AccountManager accountManager) {
         this.context = context;
         this.preferences = preferences;
-        this.permissionChecker = permissionChecker;
+        this.accountManager = accountManager;
     }
 
     public String getDefaultList() {
@@ -69,10 +67,9 @@ public class GtasksPreferenceService {
      * @return true if we have a token for this user, false otherwise
      */
     public boolean isLoggedIn() {
-        return context.getResources().getBoolean(R.bool.sync_enabled) &&
+        return context.getResources().getBoolean(R.bool.sync_supported) &&
                 preferences.getBoolean(R.string.sync_gtasks, false) &&
-                !isNullOrEmpty(preferences.getStringValue(PREF_USER_NAME)) &&
+                accountManager.hasAccount(preferences.getStringValue(PREF_USER_NAME));
-                permissionChecker.canAccessAccounts();
     }
 
     /** @return Last Successful Sync Date, or 0 */

src/main/java/org/tasks/preferences/BasicPreferences.java

@@ -30,7 +30,7 @@ public class BasicPreferences extends InjectingPreferenceActivity {
         result = savedInstanceState == null ? new Bundle() : savedInstanceState.getBundle(EXTRA_RESULT);
 
         addPreferencesFromResource(R.xml.preferences);
-        if (!getResources().getBoolean(R.bool.sync_enabled)) {
+        if (!getResources().getBoolean(R.bool.sync_supported)) {
             getPreferenceScreen().removePreference(findPreference(getString(R.string.synchronization)));
         }
         if (getResources().getBoolean(R.bool.google_play_store_available)) {

src/main/java/org/tasks/scheduling/BackgroundScheduler.java

@@ -23,7 +23,7 @@ public class BackgroundScheduler {
         scheduleBackupService();
         scheduleMidnightRefresh();
         scheduleCalendarNotifications();
-        if (context.getResources().getBoolean(R.bool.sync_enabled)) {
+        if (context.getResources().getBoolean(R.bool.sync_supported)) {
             scheduleGtaskSync();
         }
     }

src/main/res/values/bools.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
     <bool name="two_pane_layout">false</bool>
-    <bool name="sync_enabled">false</bool>
+    <bool name="sync_supported">false</bool>
     <bool name="location_enabled">false</bool>
     <bool name="google_play_store_available">false</bool>
 </resources>