IOS-5351 Show multichat previews and sum counters across all chats in Space Hub

Author: ignatovv

Anytype/Sources/PresentationLayer/Modules/SpaceHub/Helpers/ParticipantSpaceViewDataWithPreview.swift

@@ -4,21 +4,33 @@ import StoredHashMacro
 @StoredHash
 struct ParticipantSpaceViewDataWithPreview: Equatable, Identifiable, Hashable {
     let space: ParticipantSpaceViewData
-    let preview: ChatMessagePreview
-    
+    let latestPreview: ChatMessagePreview
+    let totalUnreadCounter: Int
+    let totalMentionCounter: Int
+
     var id: String { space.id }
-    
+
     var spaceView: SpaceView { space.spaceView }
-    
-    var hasCounters: Bool { preview.unreadCounter > 0 || preview.mentionCounter > 0 }
-    
-    func updated(preview: ChatMessagePreview) -> Self {
-        ParticipantSpaceViewDataWithPreview(space: space, preview: preview)
+
+    var hasCounters: Bool { totalUnreadCounter > 0 || totalMentionCounter > 0 }
+
+    func updated(latestPreview: ChatMessagePreview, totalUnread: Int, totalMentions: Int) -> Self {
+        ParticipantSpaceViewDataWithPreview(
+            space: space,
+            latestPreview: latestPreview,
+            totalUnreadCounter: totalUnread,
+            totalMentionCounter: totalMentions
+        )
     }
 }
 
 extension ParticipantSpaceViewDataWithPreview {
     init(space: ParticipantSpaceViewData) {
-        self.init(space: space, preview: ChatMessagePreview(spaceId: space.id, chatId: space.spaceView.chatId))
+        self.init(
+            space: space,
+            latestPreview: ChatMessagePreview(spaceId: space.id, chatId: space.spaceView.chatId),
+            totalUnreadCounter: 0,
+            totalMentionCounter: 0
+        )
     }
 }

Anytype/Sources/PresentationLayer/Modules/SpaceHub/Helpers/SpaceHubSpacesStorage.swift

@@ -26,19 +26,29 @@ actor SpaceHubSpacesStorage: SpaceHubSpacesStorageProtocol {
             ).throttle(milliseconds: 300)
 
             return combineStream.map { (spaces, previews) in
-                var spaces = spaces.map { ParticipantSpaceViewDataWithPreview(space: $0) }
-                
-                for preview in previews {
-                    if let spaceIndex = spaces.firstIndex(where: { $0.spaceView.targetSpaceId == preview.spaceId }) {
-                        let participantSpace = spaces[spaceIndex]
-                        
-                        if participantSpace.spaceView.chatId == preview.chatId {
-                            spaces[spaceIndex] = spaces[spaceIndex].updated(preview: preview)
+                spaces.map { space in
+                    let spacePreviews = previews.filter { $0.spaceId == space.spaceView.targetSpaceId }
+
+                    guard let latestPreview = spacePreviews.max(by: { preview1, preview2 in
+                        guard let date1 = preview1.lastMessage?.createdAt,
+                              let date2 = preview2.lastMessage?.createdAt else {
+                            return preview1.lastMessage == nil
                         }
+                        return date1 < date2
+                    }) else {
+                        return ParticipantSpaceViewDataWithPreview(space: space)
                     }
+
+                    let totalUnread = spacePreviews.reduce(0) { $0 + $1.unreadCounter }
+                    let totalMentions = spacePreviews.reduce(0) { $0 + $1.mentionCounter }
+
+                    return ParticipantSpaceViewDataWithPreview(
+                        space: space,
+                        latestPreview: latestPreview,
+                        totalUnreadCounter: totalUnread,
+                        totalMentionCounter: totalMentions
+                    )
                 }
-                
-                return spaces
             }
             .removeDuplicates()
             .eraseToAnyAsyncSequence()

Anytype/Sources/PresentationLayer/Modules/SpaceHub/SpaceHubViewModel.swift

@@ -148,8 +148,8 @@ final class SpaceHubViewModel {
         case (false, true):
             return false
         case (false, false):
-            let lhsMessageDate = lhs.preview.lastMessage?.createdAt
-            let rhsMessageDate = rhs.preview.lastMessage?.createdAt
+            let lhsMessageDate = lhs.latestPreview.lastMessage?.createdAt
+            let rhsMessageDate = rhs.latestPreview.lastMessage?.createdAt
             let lhsJoinDate = lhs.spaceView.joinDate
             let rhsJoinDate = rhs.spaceView.joinDate
 

Anytype/Sources/PresentationLayer/Modules/SpaceHub/Subviews/SpaceCard/SpaceCardModelBuilder.swift

@@ -30,9 +30,9 @@ final class SpaceCardModelBuilder: SpaceCardModelBuilderProtocol, Sendable {
         wallpapers: [String: SpaceWallpaperType]
     ) -> SpaceCardModel {
         let spaceView = spaceData.spaceView
-        let preview = spaceData.preview
+        let latestPreview = spaceData.latestPreview
 
-        let lastMessage = preview.lastMessage.map { lastMessagePreview in
+        let lastMessage = latestPreview.lastMessage.map { lastMessagePreview in
             let attachments = lastMessagePreview.attachments.prefix(3).map { objectDetails in
                 SpaceCardLastMessageModel.Attachment(
                     id: objectDetails.id,
@@ -62,9 +62,9 @@ final class SpaceCardModelBuilder: SpaceCardModelBuilderProtocol, Sendable {
             uxTypeName: spaceView.uxType.name,
             allNotificationsUnmuted: spaceView.pushNotificationMode.isUnmutedAll,
             lastMessage: lastMessage,
-            unreadCounter: preview.unreadCounter,
-            mentionCounter: preview.mentionCounter,
-            hasCounters: preview.hasCounters,
+            unreadCounter: spaceData.totalUnreadCounter,
+            mentionCounter: spaceData.totalMentionCounter,
+            hasCounters: spaceData.hasCounters,
             wallpaper: wallpapers[spaceView.targetSpaceId] ?? .default
         )
     }