edit top bar in msg

yobble/Resources/Localizable.xcstrings

@@ -719,7 +719,7 @@
       }
     },
     "Избранные сообщения" : {
-
+      "comment" : "Saved messages title"
     },
     "Изменение контакта \"%1$@\" появится позже." : {
       "comment" : "Contacts edit placeholder message"
@@ -1420,7 +1420,7 @@
       }
     },
     "Неизвестный пользователь" : {
-      "comment" : "Deleted user display name",
+      "comment" : "Deleted user display name\nUnknown chat title",
       "localizations" : {
         "en" : {
           "stringUnit" : {
@@ -1628,6 +1628,9 @@
         }
       }
     },
+    "Оффлайн" : {
+      "comment" : "Offline status placeholder"
+    },
     "Оценка %d" : {
       "comment" : "feedback: rating accessibility",
       "localizations" : {

yobble/Views/Chat/PrivateChatView.swift

@@ -7,6 +7,7 @@ struct PrivateChatView: View {
     let chat: PrivateChatListItem
     let currentUserId: String?
     private let bottomAnchorId = "PrivateChatBottomAnchor"
+    private let headerAvatarSize: CGFloat = 36
     
     let lineLimitInChat = 6
 
@@ -46,8 +47,13 @@ struct PrivateChatView: View {
                 }
             }
         }
-        .navigationTitle(title)
+        .navigationTitle(toolbarTitle)
         .navigationBarTitleDisplayMode(.inline)
+        .toolbar {
+            ToolbarItem(placement: .principal) {
+                chatToolbarContent
+            }
+        }
         .task {
             viewModel.loadInitialHistory()
         }
@@ -454,16 +460,188 @@ struct PrivateChatView: View {
     }()
 
     private var title: String {
-        if let full = chat.chatData?.fullName, !full.isEmpty {
-            return full
-        }
-        if let custom = chat.chatData?.customName, !custom.isEmpty {
+        switch chat.chatType {
+        case .self:
+            return NSLocalizedString("Избранные сообщения", comment: "Saved messages title")
+        case .privateChat, .unknown:
+            if let custom = trimmed(chat.chatData?.customName) {
                 return custom
             }
-        if let login = chat.chatData?.login, !login.isEmpty {
+            if let full = trimmed(chat.chatData?.fullName) {
+                return full
+            }
+            if let login = trimmed(chat.chatData?.login) {
                 return "@\(login)"
             }
-        return NSLocalizedString("Чат", comment: "")
+            return NSLocalizedString("Неизвестный пользователь", comment: "Unknown chat title")
+        }
+    }
+
+    private var toolbarTitle: String {
+        officialDisplayName ?? title
+    }
+
+    private var offlineStatusText: String {
+        NSLocalizedString("Оффлайн", comment: "Offline status placeholder")
+    }
+
+    private var loginDisplay: String? {
+        guard let login = trimmed(chat.chatData?.login) else {
+            return nil
+        }
+        return "@\(login)"
+    }
+
+    private var isOfficial: Bool {
+        chat.chatData?.isOfficial ?? false
+    }
+
+    private var officialDisplayName: String? {
+        guard isOfficial else { return nil }
+
+        if let customName = trimmed(chat.chatData?.customName) {
+            return customName
+        }
+
+        if let name = trimmed(chat.chatData?.fullName) {
+            return NSLocalizedString(name, comment: "Official chat name")
+        }
+
+        return loginDisplay
+    }
+
+    private var isDeletedUser: Bool {
+        guard chat.chatType != .self else { return false }
+        return trimmed(chat.chatData?.login) == nil
+    }
+
+    private var avatarBackgroundColor: Color {
+        if isDeletedUser {
+            return Color(.systemGray5)
+        }
+        return isOfficial ? Color.accentColor.opacity(0.85) : Color.accentColor.opacity(0.15)
+    }
+
+    private var avatarTextColor: Color {
+        if isDeletedUser {
+            return Color.accentColor
+        }
+        return isOfficial ? Color.white : Color.accentColor
+    }
+
+    private var deletedUserSymbolName: String {
+        "person.slash"
+    }
+
+    private var avatarUrl: URL? {
+        guard let chatData = chat.chatData,
+              let fileId = chatData.avatars?.current?.fileId else {
+            return nil
+        }
+        let userId = chatData.userId
+        return URL(string: "\(AppConfig.API_SERVER)/v1/storage/download/avatar/\(userId)?file_id=\(fileId)")
+    }
+
+    private var avatarInitial: String {
+        if let name = trimmed(chat.chatData?.customName) ?? trimmed(chat.chatData?.fullName) {
+            let components = name.split(separator: " ")
+            let initials = components.prefix(2).compactMap { $0.first }
+            if !initials.isEmpty {
+                return initials.map { String($0) }.joined().uppercased()
+            }
+        }
+
+        if let login = trimmed(chat.chatData?.login) {
+            return String(login.prefix(1)).uppercased()
+        }
+
+        return "?"
+    }
+
+    private func trimmed(_ string: String?) -> String? {
+        guard let string = string?.trimmingCharacters(in: .whitespacesAndNewlines), !string.isEmpty else {
+            return nil
+        }
+        return string
+    }
+
+    private var chatToolbarContent: some View {
+        HStack(spacing: 12) {
+
+            VStack(alignment: .leading, spacing: 2) {
+                if let officialName = officialDisplayName {
+                    HStack(spacing: 4) {
+                        nameText(officialName, weight: .semibold)
+
+                        Image(systemName: "checkmark.seal.fill")
+                            .foregroundColor(Color.accentColor)
+                            .font(.caption)
+                    }
+                } else {
+                    nameText(title, weight: .semibold)
+                }
+
+                Text(offlineStatusText)
+                    .font(.caption)
+                    .foregroundColor(.secondary)
+            }
+            
+            if let url = avatarUrl,
+               let fileId = chat.chatData?.avatars?.current?.fileId,
+               let userId = currentUserId {
+                CachedAvatarView(url: url, fileId: fileId, userId: userId) {
+                    headerPlaceholderAvatar
+                }
+                .aspectRatio(contentMode: .fill)
+                .frame(width: headerAvatarSize, height: headerAvatarSize)
+                .clipShape(Circle())
+            } else {
+                headerPlaceholderAvatar
+            }
+
+        }
+        .frame(maxWidth: .infinity, alignment: .center)
+    }
+
+    private func nameText(_ text: String, weight: Font.Weight) -> some View {
+        Group {
+            if #available(iOS 16.0, *) {
+                Text(text)
+                    .font(.headline)
+                    .fontWeight(weight)
+                    .foregroundColor(.primary)
+                    .lineLimit(1)
+                    .truncationMode(.tail)
+                    .strikethrough(isDeletedUser, color: Color.secondary)
+            } else {
+                Text(text)
+                    .font(.headline)
+                    .fontWeight(weight)
+                    .foregroundColor(.primary)
+                    .lineLimit(1)
+                    .truncationMode(.tail)
+            }
+        }
+    }
+
+    private var headerPlaceholderAvatar: some View {
+        Circle()
+            .fill(avatarBackgroundColor)
+            .frame(width: headerAvatarSize, height: headerAvatarSize)
+            .overlay(
+                Group {
+                    if isDeletedUser {
+                        Image(systemName: deletedUserSymbolName)
+                            .symbolRenderingMode(.hierarchical)
+                            .font(.system(size: headerAvatarSize * 0.45, weight: .semibold))
+                            .foregroundColor(avatarTextColor)
+                    } else {
+                        Text(avatarInitial)
+                            .font(.system(size: headerAvatarSize * 0.5, weight: .semibold))
+                            .foregroundColor(avatarTextColor)
+                    }
+                }
+            )
     }
 }