Placeholder logic for a sync refresh/debug button

astrid/plugin-src/com/todoroo/astrid/actfm/sync/ActFmSyncService.java

@@ -144,6 +144,21 @@ public final class ActFmSyncService {
         }
     }
 
+    public String refreshToken() {
+        try {
+            JSONObject result = invoke("refresh_token");
+            String newToken = result.optString("token");
+            if (!TextUtils.isEmpty(newToken)) {
+                actFmPreferenceService.setToken(newToken);
+                checkForToken();
+            }
+            return newToken;
+        } catch (IOException e) {
+            //
+        }
+        return null;
+    }
+
     // --- generic invokation
 
     /** invoke authenticated method against the server */

astrid/plugin-src/com/todoroo/astrid/core/OldTaskPreferences.java

@@ -24,6 +24,8 @@ import com.todoroo.andlib.utility.DateUtilities;
 import com.todoroo.andlib.utility.DialogUtilities;
 import com.todoroo.andlib.utility.Preferences;
 import com.todoroo.andlib.utility.TodorooPreferenceActivity;
+import com.todoroo.astrid.actfm.sync.ActFmSyncService;
+import com.todoroo.astrid.actfm.sync.ActFmSyncThread;
 import com.todoroo.astrid.dao.Database;
 import com.todoroo.astrid.data.Task;
 import com.todoroo.astrid.gcal.GCalHelper;
@@ -43,6 +45,8 @@ public class OldTaskPreferences extends TodorooPreferenceActivity {
     @Autowired MetadataService metadataService;
     @Autowired Database database;
 
+    @Autowired ActFmSyncService actFmSyncService;
+
     ProgressDialog pd;
 
     @Override
@@ -65,6 +69,15 @@ public class OldTaskPreferences extends TodorooPreferenceActivity {
             }
         });
 
+        preference = screen.findPreference(getString(R.string.EPr_reset_sync_state));
+        preference.setOnPreferenceClickListener(new OnPreferenceClickListener() {
+            @Override
+            public boolean onPreferenceClick(Preference p) {
+                showResetSyncStateDialog();
+                return true;
+            }
+        });
+
         preference = screen.findPreference(getString(R.string.EPr_manage_purge_deleted));
         preference.setOnPreferenceClickListener(new OnPreferenceClickListener() {
             public boolean onPreferenceClick(Preference p) {
@@ -287,6 +300,22 @@ public class OldTaskPreferences extends TodorooPreferenceActivity {
                 }, null);
     }
 
+    private void showResetSyncStateDialog() {
+        DialogUtilities.okCancelDialog(this, getString(R.string.EPr_reset_sync_state_detailed), new OnClickListener() {
+            @Override
+            public void onClick(DialogInterface dialog, int which) {
+                pd = DialogUtilities.runWithProgressDialog(OldTaskPreferences.this, new Runnable() {
+                    @Override
+                    public void run() {
+                        actFmSyncService.refreshToken();
+                        ActFmSyncThread.clearTablePushedAtValues();
+                        //TODO: Maybe clear outstanding tables?
+                    }
+                });
+            }
+        }, null);
+    }
+
     protected void showResult(int resourceText, int result) {
         DialogUtilities.okDialog(this, getString(resourceText, result), null);
     }

astrid/res/values/strings-actfm.xml

@@ -376,5 +376,9 @@
   
   <string name="actfm_sync_ongoing">Sync ongoing...</string>
   
+  <string name="EPr_reset_sync_state">Reset sync</string>
+  <string name="EPr_reset_sync_state_summary">Refreshes sync token and resets some local data to help resolve sync errors</string>
+  <string name="EPr_reset_sync_state_detailed">The next time you sync, your tasks and lists will be changed to mirror what exists on Astrid.com, which may help resolve sync errors. Do you wish to continue?</string>
+  
 </resources>
 

astrid/res/xml/preferences_oldtasks.xml

@@ -8,6 +8,11 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:title="@string/EPr_manage_header">
     
+    <com.todoroo.astrid.ui.MultilinePreference
+        android:title="@string/EPr_reset_sync_state"
+        android:key="@string/EPr_reset_sync_state"
+        android:summary="@string/EPr_reset_sync_state_summary" />
+    
     <com.todoroo.astrid.ui.MultilinePreference
         android:title="@string/EPr_manage_delete_completed"
         android:key="@string/EPr_manage_delete_completed"