Invites list (#787)

* Setup invites SS window

* Add invites label in the home screen

* Add empty invtes list

* Setup navigation to invites list

* Inject invitesSummaryProvider

* Show invites

* Add InviteCell

* Refine InviteCell UI

* Push invites

* Amend SS configuration

* Add inviter in RoomProxyProtocol

* Add Invite model type

* Improve InviteCell

* Fix media provider injection

* Refine InviteCell

* Refine invite cell

* Add invites feature flag

* Try different SS config for invites

* Regiester invites view in configureViewsPostInitialSync

* Cleanup

* Start tests

* Cleanup code

* Add changelog.d file

* Add tests

* Handle canonical alias

* Add InvitesListScreen previews

* Add localisations and improve UI tests

* Add reference screenshots

* Cleanup code

* Fix UT build errors

* Refactor InvitesList -> Invites

* Apply pr comments

* Remove reduntant @MainActor

* Naming cleanup

* Fix InvitesScreenCell.title

* Add accept/decline InvitesViewAction

* Revert Package.resolved

* Add warning in InvitesScreenCell

* Improve PlaceholderAvatarImage

* Record snapshots again

* Refactor Invite -> InvitesRoomDeatils

* Rename identifier in PlaceholderAvatarImage

ElementX/Sources/Screens/HomeScreen/HomeScreenCoordinator.swift

@@ -30,6 +30,7 @@ enum HomeScreenCoordinatorAction {
     case presentFeedbackScreen
     case presentSessionVerificationScreen
     case presentStartChatScreen
+    case presentInvitesScreen
     case signOut
 }
 
@@ -63,6 +64,8 @@ final class HomeScreenCoordinator: CoordinatorProtocol {
                 self.callback?(.signOut)
             case .presentStartChatScreen:
                 self.callback?(.presentStartChatScreen)
+            case .presentInvitesScreen:
+                self.callback?(.presentInvitesScreen)
             }
         }
     }

ElementX/Sources/Screens/HomeScreen/HomeScreenModels.swift

@@ -24,6 +24,7 @@ enum HomeScreenViewModelAction {
     case presentSettingsScreen
     case presentFeedbackScreen
     case presentStartChatScreen
+    case presentInvitesScreen
     case signOut
 }
 
@@ -40,6 +41,7 @@ enum HomeScreenViewAction {
     case verifySession
     case skipSessionVerification
     case updateVisibleItemRange(range: Range<Int>, isScrolling: Bool)
+    case selectInvites
 }
 
 enum HomeScreenRoomListMode: CustomStringConvertible {
@@ -70,6 +72,8 @@ struct HomeScreenViewState: BindableState {
     /// The URL that will be shared when inviting friends to use the app.
     let invitePermalink: URL?
     
+    var hasPendingInvitations = false
+    
     var startChatFlowEnabled: Bool {
         ServiceLocator.shared.settings.startChatFlowEnabled
     }

ElementX/Sources/Screens/HomeScreen/HomeScreenViewModel.swift

@@ -23,6 +23,7 @@ class HomeScreenViewModel: HomeScreenViewModelType, HomeScreenViewModelProtocol
     private let userSession: UserSessionProtocol
     private let visibleRoomsSummaryProvider: RoomSummaryProviderProtocol?
     private let allRoomsSummaryProvider: RoomSummaryProviderProtocol?
+    private let invitesSummaryProvider: RoomSummaryProviderProtocol?
     private let attributedStringBuilder: AttributedStringBuilderProtocol
     
     private var visibleItemRangeObservationToken: AnyCancellable?
@@ -37,6 +38,7 @@ class HomeScreenViewModel: HomeScreenViewModelType, HomeScreenViewModelProtocol
         
         visibleRoomsSummaryProvider = userSession.clientProxy.visibleRoomsSummaryProvider
         allRoomsSummaryProvider = userSession.clientProxy.allRoomsSummaryProvider
+        invitesSummaryProvider = userSession.clientProxy.invitesSummaryProvider
         
         let invitePermalink = try? PermalinkBuilder.permalinkTo(userIdentifier: userSession.userID)
         super.init(initialViewState: HomeScreenViewState(userID: userSession.userID, invitePermalink: invitePermalink),
@@ -60,7 +62,7 @@ class HomeScreenViewModel: HomeScreenViewModelType, HomeScreenViewModelProtocol
             .weakAssign(to: \.state.userAvatarURL, on: self)
             .store(in: &cancellables)
         
-        guard let visibleRoomsSummaryProvider, let allRoomsSummaryProvider else {
+        guard let visibleRoomsSummaryProvider, let allRoomsSummaryProvider, let invitesSummaryProvider else {
             MXLog.error("Room summary provider unavailable")
             return
         }
@@ -132,6 +134,12 @@ class HomeScreenViewModel: HomeScreenViewModelType, HomeScreenViewModelProtocol
             }
             .store(in: &cancellables)
         
+        invitesSummaryProvider.countPublisher
+            .map { $0 > 0 }
+            .receive(on: DispatchQueue.main)
+            .weakAssign(to: \.state.hasPendingInvitations, on: self)
+            .store(in: &cancellables)
+        
         updateRooms()
     }
     
@@ -158,6 +166,8 @@ class HomeScreenViewModel: HomeScreenViewModelType, HomeScreenViewModelProtocol
             visibleItemRangePublisher.send((range, isScrolling))
         case .startChat:
             callback?(.presentStartChatScreen)
+        case .selectInvites:
+            callback?(.presentInvitesScreen)
         }
     }
     

ElementX/Sources/Screens/HomeScreen/View/HomeScreen.swift

@@ -40,6 +40,14 @@ struct HomeScreen: View {
             if context.viewState.showSessionVerificationBanner {
                 sessionVerificationBanner
             }
+
+            if context.viewState.hasPendingInvitations, ServiceLocator.shared.settings.invitesFlowEnabled {
+                HomeScreenInvitesButton(title: L10n.actionInvitesList, hasBadge: true) {
+                    context.send(viewAction: .selectInvites)
+                }
+                .padding(.trailing, 16)
+                .frame(maxWidth: .infinity, alignment: .trailing)
+            }
             
             if context.viewState.roomListMode == .skeletons {
                 LazyVStack(spacing: 0) {
@@ -240,7 +248,7 @@ struct HomeScreen: View {
 struct HomeScreen_Previews: PreviewProvider {
     static var previews: some View {
         body(.loading)
-        body(.loaded)
+        body(.loaded(.mockRooms))
     }
     
     static func body(_ state: MockRoomSummaryProviderState) -> some View {

ElementX/Sources/Screens/HomeScreen/View/HomeScreenInvitesButton.swift

@@ -0,0 +1,61 @@
+//
+// Copyright 2023 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import SwiftUI
+
+struct HomeScreenInvitesButton: View {
+    @ScaledMetric private var badgeSize = 12.0
+    
+    let title: String
+    let hasBadge: Bool
+    let action: () -> Void
+    
+    var body: some View {
+        Button(action: action) {
+            HStack(spacing: 8) {
+                Text(title)
+                    .foregroundColor(.element.primaryContent)
+                    .font(.compound.bodyMD)
+                
+                if hasBadge {
+                    badge
+                }
+            }
+        }
+    }
+    
+    // MARK: - Private
+    
+    private var badge: some View {
+        Circle()
+            .frame(width: badgeSize, height: badgeSize)
+            .foregroundColor(.element.brand)
+    }
+}
+
+struct InvitesButton_Previews: PreviewProvider {
+    static var previews: some View {
+        HomeScreenInvitesButton(title: "Invites", hasBadge: true, action: { })
+            .previewDisplayName("Badge on")
+        
+        HomeScreenInvitesButton(title: "Invites", hasBadge: false, action: { })
+            .previewDisplayName("Badge off")
+        
+        HomeScreenInvitesButton(title: "Invites", hasBadge: true, action: { })
+            .previewDisplayName("Badge on (AX1)")
+            .dynamicTypeSize(.accessibility1)
+    }
+}

ElementX/Sources/Screens/HomeScreen/View/HomeScreenRoomCell.swift

@@ -165,7 +165,7 @@ private extension View {
 
 struct HomeScreenRoomCell_Previews: PreviewProvider {
     static var previews: some View {
-        let summaryProvider = MockRoomSummaryProvider(state: .loaded)
+        let summaryProvider = MockRoomSummaryProvider(state: .loaded(.mockRooms))
 
         let userSession = MockUserSession(clientProxy: MockClientProxy(userID: "John Doe", roomSummaryProvider: summaryProvider),
                                           mediaProvider: MockMediaProvider())