Improve handling of group creation failures.

// FREEBIE

Podfile

@@ -5,8 +5,8 @@ target 'Signal' do
     pod 'SocketRocket',               :git => 'https://github.com/facebook/SocketRocket.git'
     pod 'AxolotlKit',                 git: 'https://github.com/WhisperSystems/SignalProtocolKit.git'
     #pod 'AxolotlKit',                 path: '../SignalProtocolKit'
-    pod 'SignalServiceKit',           git: 'https://github.com/WhisperSystems/SignalServiceKit.git'
-    #pod 'SignalServiceKit',           path: '../SignalServiceKit'
+    #pod 'SignalServiceKit',           git: 'https://github.com/WhisperSystems/SignalServiceKit.git'
+    pod 'SignalServiceKit',           path: '../SignalServiceKit'
     pod 'OpenSSL'
     pod 'JSQMessagesViewController',  git: 'https://github.com/WhisperSystems/JSQMessagesViewController.git', branch: 'mkirk/position-edit-menu'
     #pod 'JSQMessagesViewController'   path: '../JSQMessagesViewController'

Podfile.lock

@@ -114,7 +114,7 @@ DEPENDENCIES:
   - OpenSSL
   - PureLayout
   - Reachability
-  - SignalServiceKit (from `https://github.com/WhisperSystems/SignalServiceKit.git`)
+  - SignalServiceKit (from `../SignalServiceKit`)
   - SocketRocket (from `https://github.com/facebook/SocketRocket.git`)
 
 EXTERNAL SOURCES:
@@ -124,7 +124,7 @@ EXTERNAL SOURCES:
     :branch: mkirk/position-edit-menu
     :git: https://github.com/WhisperSystems/JSQMessagesViewController.git
   SignalServiceKit:
-    :git: https://github.com/WhisperSystems/SignalServiceKit.git
+    :path: ../SignalServiceKit
   SocketRocket:
     :git: https://github.com/facebook/SocketRocket.git
 
@@ -135,9 +135,6 @@ CHECKOUT OPTIONS:
   JSQMessagesViewController:
     :commit: 7054e4b13ee5bcd6d524adb6dc9a726e8c466308
     :git: https://github.com/WhisperSystems/JSQMessagesViewController.git
-  SignalServiceKit:
-    :commit: 7052b97c72c7d9601883c55ba8ad6a5729b8f504
-    :git: https://github.com/WhisperSystems/SignalServiceKit.git
   SocketRocket:
     :commit: 877ac7438be3ad0b45ef5ca3969574e4b97112bf
     :git: https://github.com/facebook/SocketRocket.git
@@ -164,6 +161,6 @@ SPEC CHECKSUMS:
   UnionFind: c33be5adb12983981d6e827ea94fc7f9e370f52d
   YapDatabase: cd911121580ff16675f65ad742a9eb0ab4d9e266
 
-PODFILE CHECKSUM: 48e80d7f1e049bbf544a689fdfdf33e8196c640a
+PODFILE CHECKSUM: 6f9ef5d9fa17469569e127a9f5719dafa11631b9
 
 COCOAPODS: 1.2.1

Signal/src/ViewControllers/ConversationView/MessagesViewController.m

@@ -2388,6 +2388,9 @@ typedef enum : NSUInteger {
             OWSAssert([message isKindOfClass:[OWSUnknownContactBlockOfferMessage class]]);
             [self tappedUnknownContactBlockOfferMessage:(OWSUnknownContactBlockOfferMessage *)message];
             return;
+        case TSErrorMessageGroupCreationFailed:
+            [self resendGroupUpdateForErrorMessage:message];
+            return;
     }
 
     DDLogWarn(@"%@ Unhandled tap for error message:%@", self.tag, message);
@@ -3660,7 +3663,7 @@ typedef enum : NSUInteger {
     [messageData performEditingAction:action];
 }
 
-- (void)updateGroupModelTo:(TSGroupModel *)newGroupModel
+- (void)updateGroupModelTo:(TSGroupModel *)newGroupModel successCompletion:(void (^_Nullable)())successCompletion
 {
     __block TSGroupThread *groupThread;
     __block TSOutgoingMessage *message;
@@ -3686,6 +3689,9 @@ typedef enum : NSUInteger {
             inMessage:message
             success:^{
                 DDLogDebug(@"%@ Successfully sent group update with avatar", self.tag);
+                if (successCompletion) {
+                    successCompletion();
+                }
             }
             failure:^(NSError *_Nonnull error) {
                 DDLogError(@"%@ Failed to send group avatar update with error: %@", self.tag, error);
@@ -3694,6 +3700,9 @@ typedef enum : NSUInteger {
         [self.messageSender sendMessage:message
             success:^{
                 DDLogDebug(@"%@ Successfully sent group update", self.tag);
+                if (successCompletion) {
+                    successCompletion();
+                }
             }
             failure:^(NSError *_Nonnull error) {
                 DDLogError(@"%@ Failed to send group update with error: %@", self.tag, error);
@@ -4014,6 +4023,22 @@ typedef enum : NSUInteger {
 
 #pragma mark - OWSConversationSettingsViewDelegate
 
+- (void)resendGroupUpdateForErrorMessage:(TSErrorMessage *)message
+{
+    OWSAssert([NSThread isMainThread]);
+    OWSAssert([_thread isKindOfClass:[TSGroupThread class]]);
+    OWSAssert(message);
+
+    TSGroupThread *groupThread = (TSGroupThread *)self.thread;
+    TSGroupModel *groupModel = groupThread.groupModel;
+    [self updateGroupModelTo:groupModel
+           successCompletion:^{
+               DDLogInfo(@"Group updated, removing group creation error.");
+
+               [message remove];
+           }];
+}
+
 - (void)groupWasUpdated:(TSGroupModel *)groupModel
 {
     OWSAssert(groupModel);
@@ -4021,7 +4046,7 @@ typedef enum : NSUInteger {
     NSMutableSet *groupMemberIds = [NSMutableSet setWithArray:groupModel.groupMemberIds];
     [groupMemberIds addObject:[TSAccountManager localNumber]];
     groupModel.groupMemberIds = [NSMutableArray arrayWithArray:[groupMemberIds allObjects]];
-    [self updateGroupModelTo:groupModel];
+    [self updateGroupModelTo:groupModel successCompletion:nil];
     [self.collectionView.collectionViewLayout
         invalidateLayoutWithContext:[JSQMessagesCollectionViewFlowLayoutInvalidationContext context]];
     [self.collectionView reloadData];

Signal/src/ViewControllers/NewGroupViewController.m

@@ -450,26 +450,33 @@ const NSUInteger kNewGroupViewControllerAvatarWidth = 68;
         }];
     OWSAssert(thread);
 
-    void (^popToThread)() = ^{
+    void (^successHandler)() = ^{
+        DDLogError(@"Group creation successful.");
+
         dispatch_async(dispatch_get_main_queue(), ^{
             [self dismissViewControllerAnimated:YES
                                      completion:^{
+                                         // Pop to new group thread.
                                          [Environment messageGroup:thread];
                                      }];
 
         });
     };
 
-    void (^removeThreadWithError)(NSError *error) = ^(NSError *error) {
-        [thread remove];
+    void (^failureHandler)(NSError *error) = ^(NSError *error) {
+        DDLogError(@"Group creation failed: %@", error);
+
         dispatch_async(dispatch_get_main_queue(), ^{
             [self dismissViewControllerAnimated:YES
                                      completion:^{
-                                         [OWSAlerts
-                                             showAlertWithTitle:
-                                                 NSLocalizedString(@"GROUP_CREATING_FAILED",
-                                                     "Title of alert indicating that new group could not be created.")
-                                                        message:error.localizedDescription];
+                                         // Add an error message to the new group indicating
+                                         // that group creation didn't succeed.
+                                         [[[TSErrorMessage alloc] initWithTimestamp:[NSDate ows_millisecondTimeStamp]
+                                                                           inThread:thread
+                                                                  failedMessageType:TSErrorMessageGroupCreationFailed]
+                                             save];
+
+                                         [Environment messageGroup:thread];
                                      }];
         });
     };
@@ -489,15 +496,16 @@ const NSUInteger kNewGroupViewControllerAvatarWidth = 68;
 
                          // This will save the message.
                          [message updateWithCustomMessage:NSLocalizedString(@"GROUP_CREATED", nil)];
+
                          if (model.groupImage) {
                              [self.messageSender sendAttachmentData:UIImagePNGRepresentation(model.groupImage)
                                                         contentType:OWSMimeTypeImagePng
                                                      sourceFilename:nil
                                                           inMessage:message
-                                                            success:popToThread
-                                                            failure:removeThreadWithError];
+                                                            success:successHandler
+                                                            failure:failureHandler];
                          } else {
-                             [self.messageSender sendMessage:message success:popToThread failure:removeThreadWithError];
+                             [self.messageSender sendMessage:message success:successHandler failure:failureHandler];
                          }
                      }];
 }

Signal/src/views/OWSSystemMessageCell.m

@@ -124,6 +124,7 @@ NS_ASSUME_NONNULL_BEGIN
             case TSErrorMessageDuplicateMessage:
             case TSErrorMessageInvalidVersion:
             case TSErrorMessageUnknownContactBlockOffer:
+            case TSErrorMessageGroupCreationFailed:
                 result = [UIImage imageNamed:@"system_message_info"];
                 break;
         }

Signal/translations/en.lproj/Localizable.strings

@@ -553,8 +553,8 @@
 /* No comment provided by engineer. */
 "GROUP_CREATING" = "Creating new group";
 
-/* Title of alert indicating that new group could not be created. */
-"GROUP_CREATING_FAILED" = "Group creation failed";
+/* Message shown in conversation view that indicates there were issues with group creation. */
+"GROUP_CREATION_FAILED" = "Not all members could be added to the group. Tap to retry.";
 
 /* Conversation settings table section title */
 "GROUP_MANAGEMENT_SECTION" = "Group Management";