Fixed a number of bugs

Fixed a bug where threads might not be getting marked as read correctly
Fixed a bug where the GarbageCollectionJob could end up blocking the database write thread (seemed to only hang when the debugger was attached but may have affected devices at some point)
Fixed a bug with thread sorting
Fixed a bug where joining an open group wouldn't appear until after the first poll completed
Fixed a bug where conversations with no interactions would display odd interaction copy
Fixed a bug where the sender name was appearing above outgoing messages in groups

Session/Shared/FullConversationCell.swift

@@ -381,6 +381,9 @@ public final class FullConversationCell: UITableViewCell {
     // MARK: - Snippet generation
 
     private func getSnippet(cellViewModel: SessionThreadViewModel) -> NSMutableAttributedString {
+        // If we don't have an interaction then do nothing
+        guard cellViewModel.interactionId != nil else { return NSMutableAttributedString() }
+        
         let result = NSMutableAttributedString()
         
         if Date().timeIntervalSince1970 < (cellViewModel.threadMutedUntilTimestamp ?? 0) {

SessionMessagingKit/Database/Models/Interaction.swift

@@ -462,7 +462,24 @@ public extension Interaction {
         }
         
         // If we aren't including older interactions then update and save the current one
-        guard includingOlder else {
+        struct InteractionReadInfo: Decodable, FetchableRecord {
+            let timestampMs: Int64
+            let wasRead: Bool
+        }
+        
+        // Since there is no guarantee on the order messages are inserted into the database
+        // fetch the timestamp for the interaction and set everything before that as read
+        let maybeInteractionInfo: InteractionReadInfo? = try Interaction
+            .select(.timestampMs, .wasRead)
+            .filter(id: interactionId)
+            .asRequest(of: InteractionReadInfo.self)
+            .fetchOne(db)
+        
+        guard includingOlder, let interactionInfo: InteractionReadInfo = maybeInteractionInfo else {
+            // Only mark as read and trigger the subsequent jobs if the interaction is
+            // actually not read (no point updating and triggering db changes otherwise)
+            guard maybeInteractionInfo?.wasRead == false else { return }
+            
             _ = try Interaction
                 .filter(id: interactionId)
                 .updateAll(db, Columns.wasRead.set(to: true))
@@ -472,9 +489,9 @@ public extension Interaction {
         }
         
         let interactionQuery = Interaction
-            .filter(Columns.threadId == threadId)
+            .filter(Interaction.Columns.threadId == threadId)
-            .filter(Columns.id <= interactionId)
+            .filter(Interaction.Columns.timestampMs <= interactionInfo.timestampMs)
-            .filter(Columns.wasRead == false)
+            .filter(Interaction.Columns.wasRead == false)
             // The `wasRead` flag doesn't apply to `standardOutgoing` or `standardIncomingDeleted`
             .filter(Columns.variant != Variant.standardOutgoing && Columns.variant != Variant.standardIncomingDeleted)
         let interactionIdsToMarkAsRead: [Int64] = try interactionQuery

SessionMessagingKit/Jobs/Types/GarbageCollectionJob.swift

@@ -35,8 +35,6 @@ public enum GarbageCollectionJob: JobExecutor {
         }
         
         let timestampNow: TimeInterval = Date().timeIntervalSince1970
-        var attachmentLocalRelativePaths: Set<String> = []
-        var profileAvatarFilenames: Set<String> = []
         
         GRDBStorage.shared.writeAsync(
             updates: { db in
@@ -203,6 +201,19 @@ public enum GarbageCollectionJob: JobExecutor {
                         )
                     """)
                 }
+            },
+            completion: { _, _ in
+                // Dispatch async so we can swap from the write queue to a read one (we are done writing)
+                queue.async {
+                    // Retrieve a list of all valid attachmnet and avatar file paths
+                    struct FileInfo {
+                        let attachmentLocalRelativePaths: Set<String>
+                        let profileAvatarFilenames: Set<String>
+                    }
+                    
+                    let maybeFileInfo: FileInfo? = GRDBStorage.shared.read { db -> FileInfo in
+                        var attachmentLocalRelativePaths: Set<String> = []
+                        var profileAvatarFilenames: Set<String> = []
                         
                         /// Orphaned attachment files - attachment files which don't have an associated record in the database
                         if details.typesToCollect.contains(.orphanedAttachmentFiles) {
@@ -225,12 +236,16 @@ public enum GarbageCollectionJob: JobExecutor {
                                 .asRequest(of: String.self)
                                 .fetchSet(db)
                         }
-            },
+                        
-            completion: { _, result in
+                        return FileInfo(
-                // If any of the above failed then we don't want to continue (we would end up deleting all files since
+                            attachmentLocalRelativePaths: attachmentLocalRelativePaths,
-                // neither of the arrays would have been populated correctly)
+                            profileAvatarFilenames: profileAvatarFilenames
-                guard case .success = result else {
+                        )
-                    SNLog("[GarbageCollectionJob] Database queries failed, skipping file cleanup")
+                    }
+                    
+                    // If we couldn't get the file lists then fail (invalid state and don't want to delete all attachment/profile files)
+                    guard let fileInfo: FileInfo = maybeFileInfo else {
+                        failure(job, StorageError.generic, false)
                         return
                     }
                         
@@ -261,7 +276,7 @@ public enum GarbageCollectionJob: JobExecutor {
                             .filter { path -> Bool in path.contains("/") }
                             .compactMap { path -> String? in path.components(separatedBy: "/").first }
                         let orphanedAttachmentFiles: Set<String> = allAttachmentFilePaths
-                        .subtracting(attachmentLocalRelativePaths)
+                            .subtracting(fileInfo.attachmentLocalRelativePaths)
                             .subtracting(directoryNamesContainingContent)
                         
                         orphanedAttachmentFiles.forEach { filepath in
@@ -285,7 +300,7 @@ public enum GarbageCollectionJob: JobExecutor {
                             .defaulting(to: [])
                             .asSet()
                         let orphanedAvatarFiles: Set<String> = allAvatarProfileFilenames
-                        .subtracting(profileAvatarFilenames)
+                            .subtracting(fileInfo.profileAvatarFilenames)
                         
                         orphanedAvatarFiles.forEach { filename in
                             // We don't want a single deletion failure to block deletion of the other files so try
@@ -307,6 +322,7 @@ public enum GarbageCollectionJob: JobExecutor {
                     
                     success(job, false)
                 }
+            }
         )
     }
 }

SessionMessagingKit/Open Groups/OpenGroupManager.swift

@@ -169,6 +169,7 @@ public final class OpenGroupManager: NSObject {
         // Optionally try to insert a new version of the OpenGroup (it will fail if there is already an
         // inactive one but that won't matter as we then activate it
         _ = try? SessionThread.fetchOrCreate(db, id: threadId, variant: .openGroup)
+        _ = try? SessionThread.filter(id: threadId).updateAll(db, SessionThread.Columns.shouldBeVisible.set(to: true))
         
         if (try? OpenGroup.exists(db, id: threadId)) == false {
             try? OpenGroup

SessionMessagingKit/Shared Models/MessageViewModel.swift

@@ -101,6 +101,8 @@ public struct MessageViewModel: FetchableRecordWithRowId, Decodable, Equatable,
     public let authorName: String
 
     /// This value will be used to populate the author label, if it's null then the label will be hidden
+    ///
+    /// **Note:** This will only be populated for incoming messages
     public let senderName: String?
 
     /// A flag indicating whether the profile view should be displayed
@@ -331,6 +333,11 @@ public struct MessageViewModel: FetchableRecordWithRowId, Decodable, Equatable,
                     return nil
                 }
                 
+                // Only show for incoming messages
+                guard self.variant == .standardIncoming || self.variant == .standardIncomingDeleted else {
+                    return nil
+                }
+                    
                 // Only if there is a date header or the senders are different
                 guard shouldShowDateOnThisModel || self.authorId != prevModel?.authorId else {
                     return nil

SessionMessagingKit/Shared Models/SessionThreadViewModel.swift

@@ -500,13 +500,13 @@ public extension SessionThreadViewModel {
     static let homeOrderSQL: SQL = {
         let thread: TypedTableAlias<SessionThread> = TypedTableAlias()
         
-        return SQL("\(thread[.isPinned]) DESC, IFNULL(\(Interaction.self).\(ViewModel.interactionTimestampMsKey), \(thread[.creationDateTimestamp])) DESC")
+        return SQL("\(thread[.isPinned]) DESC, IFNULL(\(Interaction.self).\(ViewModel.interactionTimestampMsKey), (\(thread[.creationDateTimestamp]) * 1000)) DESC")
     }()
     
     static let messageRequetsOrderSQL: SQL = {
         let thread: TypedTableAlias<SessionThread> = TypedTableAlias()
         
-        return SQL("IFNULL(\(Interaction.self).\(ViewModel.interactionTimestampMsKey), \(thread[.creationDateTimestamp])) DESC")
+        return SQL("IFNULL(\(Interaction.self).\(ViewModel.interactionTimestampMsKey), (\(thread[.creationDateTimestamp]) * 1000)) DESC")
     }()
 }
 
@@ -1388,7 +1388,7 @@ public extension SessionThreadViewModel {
             )
         
             GROUP BY \(thread[.id])
-            ORDER BY IFNULL(\(interaction[.timestampMs]), \(thread[.creationDateTimestamp])) DESC
+            ORDER BY IFNULL(\(interaction[.timestampMs]), (\(thread[.creationDateTimestamp]) * 1000)) DESC
         """
         
         return request.adapted { db in