delete locally and send unsend request

Session/Conversations/Context Menu/ContextMenuVC.swift

@@ -108,7 +108,7 @@ final class ContextMenuVC : UIViewController {
     }
     
     func updateMenu(forDelete: Bool = false) -> CGFloat {
-        // Menu
+        // Menu: return the menuHeight
         menuView.subviews.forEach({ $0.removeFromSuperview() })
         let menuBackgroundView = UIView()
         menuBackgroundView.backgroundColor = Colors.receivedMessageBackground

Session/Conversations/ConversationVC+Interaction.swift

@@ -546,15 +546,29 @@ extension ConversationVC : InputViewDelegate, MessageCellDelegate, ContextMenuAc
     }
     
     func delete(_ viewItem: ConversationViewItem) {
-        self.contextMenuVC?.updateMenu(forDelete: true)
+        let _ = self.contextMenuVC?.updateMenu(forDelete: true)
     }
     
     func deleteLocally(_ viewItem: ConversationViewItem) {
-        // TODO: delete locally
+        viewItem.deleteLocallyAction()
     }
     
     func deleteForEveryone(_ viewItem: ConversationViewItem) {
-        // TODO: delete for everyone
+        viewItem.deleteLocallyAction()
+        viewItem.deleteRemotelyAction()
+        let unsendRequest = UnsendRequest()
+        switch viewItem.interaction.interactionType() {
+        case .incomingMessage:
+            if let incomingMessage = viewItem.interaction as? TSIncomingMessage {
+                unsendRequest.author = incomingMessage.authorId
+            }
+        case .outgoingMessage: unsendRequest.author = getUserHexEncodedPublicKey()
+        default: return // Should never occur
+        }
+        unsendRequest.timestamp = viewItem.interaction.timestamp
+        SNMessagingKitConfiguration.shared.storage.write { transaction in
+            MessageSender.send(unsendRequest, in: self.thread, using: transaction as! YapDatabaseReadWriteTransaction)
+        }
     }
     
     func save(_ viewItem: ConversationViewItem) {

Session/Conversations/ConversationViewItem.h

@@ -132,7 +132,8 @@ NSString *NSStringForOWSMessageCellType(OWSMessageCellType cellType);
 - (void)copyTextAction;
 - (void)shareMediaAction;
 - (void)saveMediaAction;
-- (void)deleteAction;
+- (void)deleteLocallyAction;
+- (void)deleteRemotelyAction;
 
 - (BOOL)canCopyMedia;
 - (BOOL)canSaveMedia;

Session/Conversations/ConversationViewItem.m

@@ -967,7 +967,7 @@ NSString *NSStringForOWSMessageCellType(OWSMessageCellType cellType)
     return [self saveMediaAlbumItems:mediaAlbumItems];
 }
 
-- (void)deleteAction
+- (void)deleteLocallyAction
 {
     [LKStorage writeWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
         [self.interaction removeWithTransaction:transaction];
@@ -975,6 +975,11 @@ NSString *NSStringForOWSMessageCellType(OWSMessageCellType cellType)
             [LKStorage.shared cancelPendingMessageSendJobIfNeededForMessage:self.interaction.timestamp using:transaction];
         }
     }];
+}
+
+- (void)deleteRemotelyAction
+{
+    // TODO: closefd group and one-on-one chat
     
     if (self.isGroupThread) {
         TSGroupThread *groupThread = (TSGroupThread *)self.interaction.thread;
@@ -989,24 +994,19 @@ NSString *NSStringForOWSMessageCellType(OWSMessageCellType cellType)
 
         // Get the open group
         SNOpenGroupV2 *openGroupV2 = [LKStorage.shared getV2OpenGroupForThreadID:groupThread.uniqueId];
-        if (openGroup == nil && openGroupV2 == nil) return;
+        if (openGroupV2 == nil) return;
 
         // If it's an incoming message the user must have moderator status
         if (self.interaction.interactionType == OWSInteractionType_IncomingMessage) {
             NSString *userPublicKey = [LKStorage.shared getUserPublicKey];
-            if (openGroupV2 != nil) {
-                if (![SNOpenGroupAPIV2 isUserModerator:userPublicKey forRoom:openGroupV2.room onServer:openGroupV2.server]) { return; }
-            }
+            if (![SNOpenGroupAPIV2 isUserModerator:userPublicKey forRoom:openGroupV2.room onServer:openGroupV2.server]) { return; }
         }
         
         // Delete the message
-        BOOL wasSentByUser = (interationType == OWSInteractionType_OutgoingMessage);
-        if (openGroupV2 != nil) {
-            [[SNOpenGroupAPIV2 deleteMessageWithServerID:message.openGroupServerMessageID fromRoom:openGroupV2.room onServer:openGroupV2.server].catch(^(NSError *error) {
-                // Roll back
-                [self.interaction save];
-            }) retainUntilComplete];
-        }
+        [[SNOpenGroupAPIV2 deleteMessageWithServerID:message.openGroupServerMessageID fromRoom:openGroupV2.room onServer:openGroupV2.server].catch(^(NSError *error) {
+            // Roll back
+            [self.interaction save];
+        }) retainUntilComplete];
     }
 }
 

SessionMessagingKit/Sending & Receiving/MessageSender.swift

@@ -212,7 +212,7 @@ public final class MessageSender : NSObject {
                     isSuccess = true
                     storage.write(with: { transaction in
                         MessageSender.handleSuccessfulMessageSend(message, to: destination, isSyncMessage: isSyncMessage, using: transaction)
-                        var shouldNotify = (message is VisibleMessage && !isSyncMessage)
+                        var shouldNotify = ((message is VisibleMessage || message is UnsendRequest) && !isSyncMessage)
                         /*
                         if let closedGroupControlMessage = message as? ClosedGroupControlMessage, case .new = closedGroupControlMessage.kind {
                             shouldNotify = true