Expose leave chat to iOS bridge

apps/ios/TeleTuiIOS/Sources/TeleTuiIOSCore/Bridge.swift

@@ -12,6 +12,7 @@ public protocol SessionBridge: Sendable {
     func loadHistory(chatId: Int64) async throws -> [Message]
     func searchMessages(chatId: Int64, query: String) async throws -> [Message]
     func openProfile(chatId: Int64) async throws -> Profile
+    func leaveChat(chatId: Int64) async throws
     func sendMessage(chatId: Int64, text: String, replyToMessageId: Int64?) async throws -> Message
     func editMessage(chatId: Int64, messageId: Int64, text: String) async throws -> Message
     func deleteMessages(chatId: Int64, messageIds: [Int64]) async throws
@@ -132,6 +133,12 @@ public actor FakeSessionBridge: SessionBridge {
         return profile
     }
 
+    public func leaveChat(chatId: Int64) async throws {
+        chats.removeAll { $0.id == chatId }
+        messages.removeValue(forKey: chatId)
+        events.append(.chatListChanged(chats))
+    }
+
     public func sendMessage(chatId: Int64, text: String, replyToMessageId: Int64?) async throws -> Message {
         let message = Message(
             id: nextMessageId,

apps/ios/TeleTuiIOS/Sources/TeleTuiIOSCore/UniFfiSessionBridge.swift

@@ -73,6 +73,10 @@ public actor UniFfiSessionBridge: SessionBridge {
         try Self.mapProfile(handle.openProfile(chatId: chatId))
     }
 
+    public func leaveChat(chatId: Int64) async throws {
+        try handle.leaveChat(chatId: chatId)
+    }
+
     public func sendMessage(chatId: Int64, text: String, replyToMessageId: Int64?) async throws -> Message {
         try Self.mapMessage(
             handle.sendMessage(chatId: chatId, text: text, replyToMessageId: replyToMessageId),

apps/ios/TeleTuiIOS/Sources/TeleTuiIOSCore/ViewModels.swift

@@ -284,6 +284,15 @@ public final class ProfileViewModel: ObservableObject {
             errorMessage = error.localizedDescription
         }
     }
+
+    public func leave(chatId: Int64) async {
+        do {
+            try await bridge.leaveChat(chatId: chatId)
+            errorMessage = nil
+        } catch {
+            errorMessage = error.localizedDescription
+        }
+    }
 }
 
 @MainActor

apps/ios/TeleTuiIOS/Sources/TeleTuiIOSSmokeTests/main.swift

@@ -208,6 +208,10 @@ struct TeleTuiIOSSmokeTests {
         await viewModel.load(chatId: 1)
         precondition(viewModel.profile?.title == "Saved Messages")
         precondition(viewModel.profile?.username == "saved")
+
+        await viewModel.leave(chatId: 1)
+        let chats = try await bridge.loadChats(folderId: nil)
+        precondition(!chats.contains { $0.id == 1 })
     }
 
     private static func appStorageUsesApplicationSupportStyleAccountPaths() {