WIP: update info message for user leaving a group

Session/Conversations/Context Menu/ContextMenuVC+Action.swift

@@ -136,8 +136,7 @@ extension ContextMenuVC {
         switch cellViewModel.variant {
             case .standardIncomingDeleted, .infoCall,
                 .infoScreenshotNotification, .infoMediaSavedNotification,
-                .infoClosedGroupCreated, .infoClosedGroupUpdated,
-                .infoClosedGroupCurrentUserLeft, .infoClosedGroupCurrentUserLeaving, .infoClosedGroupCurrentUserErrorLeaving,
+                .infoClosedGroupCreated, .infoClosedGroupUpdated, .infoClosedGroupCurrentUserLeft,
                 .infoMessageRequestAccepted, .infoDisappearingMessagesUpdate:
                 // Let the user delete info messages and unsent messages
                 return [ Action.delete(cellViewModel, delegate) ]

Session/Conversations/ConversationVC+Interaction.swift

@@ -1694,8 +1694,7 @@ extension ConversationVC:
         switch cellViewModel.variant {
             case .standardIncomingDeleted, .infoCall,
                 .infoScreenshotNotification, .infoMediaSavedNotification,
-                .infoClosedGroupCreated, .infoClosedGroupUpdated,
-                .infoClosedGroupCurrentUserLeft, .infoClosedGroupCurrentUserLeaving, .infoClosedGroupCurrentUserErrorLeaving,
+                .infoClosedGroupCreated, .infoClosedGroupUpdated, .infoClosedGroupCurrentUserLeft,
                 .infoMessageRequestAccepted, .infoDisappearingMessagesUpdate:
                 // Info messages and unsent messages should just trigger a local
                 // deletion (they are created as side effects so we wouldn't be

Session/Conversations/Message Cells/MessageCell.swift

@@ -70,8 +70,7 @@ public class MessageCell: UITableViewCell {
             case .standardOutgoing, .standardIncoming, .standardIncomingDeleted:
                 return VisibleMessageCell.self
                 
-            case .infoClosedGroupCreated, .infoClosedGroupUpdated,
-                .infoClosedGroupCurrentUserLeft, .infoClosedGroupCurrentUserLeaving, .infoClosedGroupCurrentUserErrorLeaving,
+            case .infoClosedGroupCreated, .infoClosedGroupUpdated, .infoClosedGroupCurrentUserLeft,
                 .infoDisappearingMessagesUpdate, .infoScreenshotNotification, .infoMediaSavedNotification,
                 .infoMessageRequestAccepted:
                 return InfoMessageCell.self

Session/Home/HomeViewModel.swift

@@ -307,15 +307,12 @@ public class HomeViewModel {
                 case .closedGroup:
                     try MessageSender
                         .leave(db, groupPublicKey: threadId)
-                        .done {
+                        .done { _ in
                             Storage.shared.writeAsync { db in
                                 _ = try SessionThread
                                     .filter(id: threadId)
                                     .deleteAll(db)
                             }
-                        }
-                        .catch { _ in 
-                            
                         }
                         .retainUntilComplete()
                     

SessionMessagingKit/Database/Models/ControlMessageProcessRecord.swift

@@ -151,8 +151,7 @@ internal extension ControlMessageProcessRecord {
                 .infoClosedGroupCreated:
                 return nil
                 
-            case .infoClosedGroupUpdated, .infoClosedGroupCurrentUserLeft,
-                .infoClosedGroupCurrentUserLeaving, .infoClosedGroupCurrentUserErrorLeaving:
+            case .infoClosedGroupUpdated, .infoClosedGroupCurrentUserLeft:
                 self.variant = .closedGroupControlMessage
             
             case .infoDisappearingMessagesUpdate:

SessionMessagingKit/Database/Models/Interaction.swift

@@ -73,8 +73,6 @@ public struct Interaction: Codable, Identifiable, Equatable, FetchableRecord, Mu
         case infoClosedGroupCreated = 1000
         case infoClosedGroupUpdated
         case infoClosedGroupCurrentUserLeft
-        case infoClosedGroupCurrentUserLeaving
-        case infoClosedGroupCurrentUserErrorLeaving
         
         case infoDisappearingMessagesUpdate = 2000
         
@@ -89,7 +87,7 @@ public struct Interaction: Codable, Identifiable, Equatable, FetchableRecord, Mu
         
         public var isInfoMessage: Bool {
             switch self {
-            case .infoClosedGroupCreated, .infoClosedGroupUpdated, .infoClosedGroupCurrentUserLeft, .infoClosedGroupCurrentUserLeaving, .infoClosedGroupCurrentUserErrorLeaving,
+            case .infoClosedGroupCreated, .infoClosedGroupUpdated, .infoClosedGroupCurrentUserLeft,
                     .infoDisappearingMessagesUpdate, .infoScreenshotNotification, .infoMediaSavedNotification,
                     .infoMessageRequestAccepted, .infoCall:
                     return true
@@ -108,7 +106,7 @@ public struct Interaction: Codable, Identifiable, Equatable, FetchableRecord, Mu
                 
                 case .standardOutgoing, .standardIncomingDeleted: return false
                 
-                case .infoClosedGroupCreated, .infoClosedGroupUpdated, .infoClosedGroupCurrentUserLeft, .infoClosedGroupCurrentUserLeaving, .infoClosedGroupCurrentUserErrorLeaving,
+                case .infoClosedGroupCreated, .infoClosedGroupUpdated, .infoClosedGroupCurrentUserLeft,
                     .infoDisappearingMessagesUpdate, .infoScreenshotNotification, .infoMediaSavedNotification,
                     .infoMessageRequestAccepted:
                     return false
@@ -848,8 +846,6 @@ public extension Interaction {
                 
             case .infoClosedGroupCreated: return "GROUP_CREATED".localized()
             case .infoClosedGroupCurrentUserLeft: return "GROUP_YOU_LEFT".localized()
-            case .infoClosedGroupCurrentUserLeaving: return "group_you_leaving".localized()
-            case .infoClosedGroupCurrentUserErrorLeaving: return "group_leave_error".localized()
             case .infoClosedGroupUpdated: return (body ?? "GROUP_UPDATED".localized())
             case .infoMessageRequestAccepted: return (body ?? "MESSAGE_REQUESTS_ACCEPTED".localized())
             

SessionMessagingKit/Sending & Receiving/Message Handling/MessageSender+ClosedGroups.swift

@@ -478,7 +478,7 @@ extension MessageSender {
     /// unregisters from push notifications.
     ///
     /// The returned promise is fulfilled when the `MEMBER_LEFT` message has been sent to the group.
-    public static func leave(_ db: Database, groupPublicKey: String) throws -> Promise<Void> {
+    public static func leave(_ db: Database, groupPublicKey: String) throws -> Promise<Int64> {
         guard let thread: SessionThread = try? SessionThread.fetchOne(db, id: groupPublicKey) else {
             SNLog("Can't leave nonexistent closed group.")
             return Promise(error: MessageSenderError.noThread)
@@ -493,10 +493,8 @@ extension MessageSender {
         let interaction: Interaction = try Interaction(
             threadId: thread.id,
             authorId: userPublicKey,
-            variant: .infoClosedGroupCurrentUserLeaving,
-            body: ClosedGroupControlMessage.Kind
-                .memberLeft
-                .infoMessage(db, sender: userPublicKey),
+            variant: .infoClosedGroupCurrentUserLeft,
+            body: "group_you_leaving".localized(),
             timestampMs: SnodeAPI.currentOffsetTimestampMs()
         ).inserted(db)
         
@@ -528,10 +526,19 @@ extension MessageSender {
                         for: groupPublicKey,
                         publicKey: userPublicKey
                     )
+                    
+                    try interaction.with(
+                        body: ClosedGroupControlMessage.Kind
+                            .memberLeft
+                            .infoMessage(db, sender: userPublicKey)
+                    ).update(db)
                 }
-                interaction.with()
+                
             }
-            .map { _ in }
+            .map { _ in
+                return interactionId
+            }
+            
         
         // Update the group (if the admin leaves the group is disbanded)
         let wasAdminUser: Bool = try GroupMember