Add start secret chat confirmation alert

Telegram-iOS/en.lproj/Localizable.strings

@@ -5088,3 +5088,6 @@ Any member of this group will be able to see messages in the channel.";
 "ChatList.DeletedChats_any" = "Deleted %@ chats";
 
 "Appearance.ColorThemeNight" = "COLOR THEME — AUTO-NIGHT MODE";
+
+"UserInfo.StartSecretChatConfirmation" = "Are you sure you want to start a secret chat with\n%@?";
+"UserInfo.StartSecretChatStart" = "Start";

submodules/PeerInfoUI/Sources/UserInfoController.swift

@@ -1361,7 +1361,8 @@ public func userInfoController(context: AccountContext, peerId: PeerId, mode: Pe
         })
     }
     startSecretChatImpl = { [weak controller] in
-        let _ = (context.account.postbox.transaction { transaction -> PeerId? in
+        let _ = (context.account.postbox.transaction { transaction -> (Peer?, PeerId?) in
+            let peer = transaction.getPeer(peerId)
             let filteredPeerIds = Array(transaction.getAssociatedPeerIds(peerId)).filter { $0.namespace == Namespaces.Peer.SecretChat }
             var activeIndices: [ChatListIndex] = []
             for associatedId in filteredPeerIds {
@@ -1378,20 +1379,22 @@ public func userInfoController(context: AccountContext, peerId: PeerId, mode: Pe
             }
             activeIndices.sort()
             if let index = activeIndices.last {
-                return index.messageIndex.id.peerId
+                return (peer, index.messageIndex.id.peerId)
             } else {
-                return nil
+                return (peer, nil)
             }
-        } |> deliverOnMainQueue).start(next: { currentPeerId in
+        } |> deliverOnMainQueue).start(next: { peer, currentPeerId in
             if let currentPeerId = currentPeerId {
                 if let navigationController = (controller?.navigationController as? NavigationController) {
                     context.sharedContext.navigateToChatController(NavigateToChatControllerParams(navigationController: navigationController, context: context, chatLocation: .peer(currentPeerId)))
                 }
-            } else {
+            } else if let controller = controller {
+                let presentationData = context.sharedContext.currentPresentationData.with { $0 }
+                let displayTitle = peer?.displayTitle(strings: presentationData.strings, displayOrder: presentationData.nameDisplayOrder) ?? ""
+                controller.present(textAlertController(context: context, title: nil, text: presentationData.strings.UserInfo_StartSecretChatConfirmation(displayTitle).0, actions: [TextAlertAction(type: .genericAction, title: presentationData.strings.Common_Cancel, action: {}), TextAlertAction(type: .defaultAction, title: presentationData.strings.UserInfo_StartSecretChatStart, action: {
                     var createSignal = createSecretChat(account: context.account, peerId: peerId)
                     var cancelImpl: (() -> Void)?
                     let progressSignal = Signal<Never, NoError> { subscriber in
-                    let presentationData = context.sharedContext.currentPresentationData.with { $0 }
                         let controller = OverlayStatusController(theme: presentationData.theme, type: .loading(cancelled: {
                             cancelImpl?()
                         }))
@@ -1416,16 +1419,17 @@ public func userInfoController(context: AccountContext, peerId: PeerId, mode: Pe
                         createSecretChatDisposable.set(nil)
                     }
                     
-                createSecretChatDisposable.set((createSignal |> deliverOnMainQueue).start(next: { peerId in
+                    createSecretChatDisposable.set((createSignal |> deliverOnMainQueue).start(next: { [weak controller] peerId in
                         if let navigationController = (controller?.navigationController as? NavigationController) {
                             context.sharedContext.navigateToChatController(NavigateToChatControllerParams(navigationController: navigationController, context: context, chatLocation: .peer(peerId)))
                         }
-                }, error: { _ in
+                    }, error: { [weak controller] _ in
                         if let controller = controller {
                             let presentationData = context.sharedContext.currentPresentationData.with { $0 }
                             controller.present(textAlertController(context: context, title: nil, text: presentationData.strings.Login_UnknownError, actions: [TextAlertAction(type: .defaultAction, title: presentationData.strings.Common_OK, action: {})]), in: .window(.root))
                         }
                     }))
+                })]), in: .window(.root))
             }
         })
     }