Silently update security provider

app/src/amazon/java/org/tasks/gtasks/PlayServices.java

@@ -1,6 +1,7 @@
 package org.tasks.gtasks;
 
 import android.app.Activity;
+import android.content.Context;
 import com.todoroo.astrid.activity.MainActivity;
 import io.reactivex.disposables.Disposable;
 import io.reactivex.disposables.Disposables;
@@ -28,4 +29,6 @@ public class PlayServices {
   public Disposable check(MainActivity mainActivity) {
     return Disposables.empty();
   }
+
+  public void updateSecurityProvider(Context context) {}
 }

app/src/generic/java/org/tasks/gtasks/PlayServices.java

@@ -1,6 +1,7 @@
 package org.tasks.gtasks;
 
 import android.app.Activity;
+import android.content.Context;
 import com.todoroo.astrid.activity.MainActivity;
 import io.reactivex.disposables.Disposable;
 import io.reactivex.disposables.Disposables;
@@ -28,4 +29,6 @@ public class PlayServices {
   public Disposable check(MainActivity mainActivity) {
     return Disposables.empty();
   }
+
+  public void updateSecurityProvider(Context context) {}
 }

app/src/googleplay/java/org/tasks/gtasks/PlayServices.java

@@ -7,6 +7,9 @@ import android.content.Context;
 import android.widget.Toast;
 import com.google.android.gms.common.ConnectionResult;
 import com.google.android.gms.common.GoogleApiAvailability;
+import com.google.android.gms.common.GooglePlayServicesNotAvailableException;
+import com.google.android.gms.common.GooglePlayServicesRepairableException;
+import com.google.android.gms.security.ProviderInstaller;
 import io.reactivex.Single;
 import io.reactivex.android.schedulers.AndroidSchedulers;
 import io.reactivex.disposables.Disposable;
@@ -95,4 +98,11 @@ public class PlayServices {
     return preferences.getInt(R.string.play_services_available, -1);
   }
 
+  public void updateSecurityProvider(Context context) {
+    try {
+      ProviderInstaller.installIfNeeded(context);
+    } catch (GooglePlayServicesRepairableException | GooglePlayServicesNotAvailableException e) {
+      Timber.e(e);
+    }
+  }
 }

app/src/main/java/org/tasks/activities/AddCaldavAccountViewModel.java

@@ -1,10 +1,22 @@
 package org.tasks.activities;
 
+import android.content.Context;
 import org.tasks.caldav.CaldavClient;
+import org.tasks.gtasks.PlayServices;
 import org.tasks.ui.CompletableViewModel;
 
 public class AddCaldavAccountViewModel extends CompletableViewModel<String> {
-  public void addAccount(CaldavClient client, String url, String username, String password) {
-    run(() -> client.forUrl(url, username, password).getHomeSet());
+  public void addAccount(
+      PlayServices playServices,
+      Context context,
+      CaldavClient client,
+      String url,
+      String username,
+      String password) {
+    run(
+        () -> {
+          playServices.updateSecurityProvider(context);
+          return client.forUrl(url, username, password).getHomeSet();
+        });
   }
 }

app/src/main/java/org/tasks/caldav/CaldavAccountSettingsActivity.java

@@ -19,6 +19,7 @@ import butterknife.BindView;
 import butterknife.ButterKnife;
 import butterknife.OnFocusChange;
 import butterknife.OnTextChanged;
+import com.google.android.gms.security.ProviderInstaller;
 import com.google.android.material.snackbar.Snackbar;
 import com.google.android.material.textfield.TextInputEditText;
 import com.google.android.material.textfield.TextInputLayout;
@@ -38,6 +39,7 @@ import org.tasks.analytics.Tracking.Events;
 import org.tasks.data.CaldavAccount;
 import org.tasks.data.CaldavDao;
 import org.tasks.dialogs.DialogBuilder;
+import org.tasks.gtasks.PlayServices;
 import org.tasks.injection.ActivityComponent;
 import org.tasks.injection.ForApplication;
 import org.tasks.injection.ThemedInjectingAppCompatActivity;
@@ -62,6 +64,7 @@ public class CaldavAccountSettingsActivity extends ThemedInjectingAppCompatActiv
   @Inject TaskDeleter taskDeleter;
   @Inject Encryption encryption;
   @Inject CaldavClient client;
+  @Inject PlayServices playServices;
 
   @BindView(R.id.root_layout)
   LinearLayout root;
@@ -304,7 +307,7 @@ public class CaldavAccountSettingsActivity extends ThemedInjectingAppCompatActiv
 
     if (caldavAccount == null) {
       showProgressIndicator();
-      addCaldavAccountViewModel.addAccount(client, url, username, password);
+      addCaldavAccountViewModel.addAccount(playServices, context, client, url, username, password);
     } else if (needsValidation()) {
       showProgressIndicator();
       updateCaldavAccountViewModel.updateCaldavAccount(client, url, username, password);