Knocked Preview implementation (#3426)

* JoinRoomScreen ui for knocking

* code improvement

* updated previews

* added knocked state with tests

* send knock request

* Apply suggestions from code review

Co-authored-by: Doug <6060466+pixlwave@users.noreply.github.com>

* pr comments

* update tests

* new API

* knock implementation and cancel knock

* update strings

* added a knocked cell in the home screen

* design update

* updated SDK

* simplified the invite case code

* pr comments

* updated previews

* added message as reason

* updated strings

* fixing tests

---------

Co-authored-by: Doug <6060466+pixlwave@users.noreply.github.com>

ElementX/Sources/Services/Room/KnockedRoomProxy.swift

@@ -76,7 +76,11 @@ class KnockedRoomProxy: KnockedRoomProxyProtocol {
     }
     
     func cancelKnock() async -> Result<Void, RoomProxyError> {
-        // TODO: Implement this once the API is available
-        .failure(.invalidURL)
+        do {
+            return try await .success(room.leave())
+        } catch {
+            MXLog.error("Failed cancelling the knock with error: \(error)")
+            return .failure(.sdkError(error))
+        }
     }
 }

ElementX/Sources/Services/Room/RoomSummary/RoomSummary.swift

@@ -9,12 +9,32 @@ import Foundation
 import MatrixRustSDK
 
 struct RoomSummary {
+    enum JoinRequestType {
+        case invite(inviter: RoomMemberProxyProtocol?)
+        case knock
+        
+        var isInvite: Bool {
+            if case .invite = self {
+                return true
+            } else {
+                return false
+            }
+        }
+        
+        var isKnock: Bool {
+            if case .knock = self {
+                return true
+            } else {
+                return false
+            }
+        }
+    }
+
     let roomListItem: RoomListItem
     
     let id: String
     
-    let isInvite: Bool
-    let inviter: RoomMemberProxyProtocol?
+    let joinRequestType: JoinRequestType?
     
     let name: String
     let isDirect: Bool
@@ -67,10 +87,9 @@ extension RoomSummary {
         unreadNotificationsCount = hasUnreadNotifications ? 1 : 0
         notificationMode = settingsMode
         canonicalAlias = nil
-        inviter = nil
         hasOngoingCall = false
         
-        isInvite = false
+        joinRequestType = nil
         isMarkedUnread = false
         isFavourite = false
     }

ElementX/Sources/Services/Room/RoomSummary/RoomSummaryProvider.swift

@@ -255,10 +255,15 @@ class RoomSummaryProvider: RoomSummaryProviderProtocol {
         
         let notificationMode = roomInfo.cachedUserDefinedNotificationMode.flatMap { RoomNotificationModeProxy.from(roomNotificationMode: $0) }
         
+        let joinRequestType: RoomSummary.JoinRequestType? = switch roomInfo.membership {
+        case .invited: .invite(inviter: inviterProxy)
+        case .knocked: .knock
+        default: nil
+        }
+        
         return RoomSummary(roomListItem: roomListItem,
                            id: roomInfo.id,
-                           isInvite: roomInfo.membership == .invited,
-                           inviter: inviterProxy,
+                           joinRequestType: joinRequestType,
                            name: roomInfo.displayName ?? roomInfo.id,
                            isDirect: roomInfo.isDirect,
                            avatarURL: roomInfo.avatarUrl.flatMap(URL.init(string:)),