Implement new space selector bottom sheet (#6518)

* Delight: Edit layout experiment #6079

RiotSwiftUI/Modules/Spaces/SpaceSelectorBottomSheet/SpaceSelector/Service/MatrixSDK/SpaceSelectorService.swift

@@ -0,0 +1,92 @@
+// 
+// Copyright 2021 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 Foundation
+import Combine
+import MatrixSDK
+
+class SpaceSelectorService: SpaceSelectorServiceProtocol {
+    
+    // MARK: - Properties
+    
+    // MARK: Private
+    
+    private let session: MXSession
+    private let parentSpaceId: String?
+    private let showHomeSpace: Bool
+
+    private var spaceList: [SpaceSelectorListItemData] {
+        var itemList = showHomeSpace && parentSpaceId == nil ? [SpaceSelectorListItemData(id: SpaceSelectorConstants.homeSpaceId, icon: Asset.Images.sideMenuActionIconFeedback.image, displayName: VectorL10n.allChatsTitle)] : []
+        
+        let notificationCounter = session.spaceService.notificationCounter
+        
+        if let parentSpaceId = parentSpaceId, let parentSpace = session.spaceService.getSpace(withId: parentSpaceId) {
+            itemList.append(contentsOf: parentSpace.childSpaces.compactMap { space in
+                SpaceSelectorListItemData.itemData(with: space, notificationCounter: notificationCounter)
+            })
+        } else {
+            itemList.append(contentsOf: session.spaceService.rootSpaces.compactMap { space in
+                SpaceSelectorListItemData.itemData(with: space, notificationCounter: notificationCounter)
+            })
+        }
+        return itemList
+    }
+    
+    private var parentSpaceName: String? {
+        guard let parentSpaceId = parentSpaceId, let summary = session.roomSummary(withRoomId: parentSpaceId) else {
+            return nil
+        }
+        
+        return summary.displayname
+    }
+    
+    // MARK: Public
+
+    private(set) var spaceListSubject: CurrentValueSubject<[SpaceSelectorListItemData], Never>
+    private(set) var parentSpaceNameSubject: CurrentValueSubject<String?, Never>
+    private(set) var selectedSpaceId: String?
+
+    // MARK: - Setup
+    
+    init(session: MXSession, parentSpaceId: String?, showHomeSpace: Bool, selectedSpaceId: String?) {
+        self.session = session
+        self.parentSpaceId = parentSpaceId
+        self.showHomeSpace = showHomeSpace
+        self.spaceListSubject = CurrentValueSubject([])
+        self.parentSpaceNameSubject = CurrentValueSubject(nil)
+        self.selectedSpaceId = selectedSpaceId
+
+        spaceListSubject.send(spaceList)
+        parentSpaceNameSubject.send(parentSpaceName)
+    }
+}
+
+fileprivate extension SpaceSelectorListItemData {
+    static func itemData(with space: MXSpace, notificationCounter: MXSpaceNotificationCounter) -> SpaceSelectorListItemData? {
+        guard let summary = space.summary else {
+            return nil
+        }
+        
+        let notificationState = notificationCounter.notificationState(forSpaceWithId: space.spaceId)
+        
+        return SpaceSelectorListItemData(id:summary.roomId,
+                                         avatar: summary.room.avatarData,
+                                         displayName: summary.displayname,
+                                         notificationCount: notificationState?.groupMissedDiscussionsCount ?? 0,
+                                         highlightedNotificationCount: notificationState?.groupMissedDiscussionsHighlightedCount ?? 0,
+                                         hasSubItems: !space.childSpaces.isEmpty)
+    }
+}

RiotSwiftUI/Modules/Spaces/SpaceSelectorBottomSheet/SpaceSelector/Service/Mock/MockSpaceSelectorService.swift

@@ -0,0 +1,41 @@
+// 
+// Copyright 2021 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 Foundation
+import Combine
+import UIKit
+
+class MockSpaceSelectorService: SpaceSelectorServiceProtocol {
+    
+    static let homeItem = SpaceSelectorListItemData(id: SpaceSelectorConstants.homeSpaceId, avatar: nil, icon: UIImage(systemName: "house"), displayName: "All Chats", notificationCount: 0, highlightedNotificationCount: 0, hasSubItems: false)
+    static let defaultSpaceList = [
+        homeItem,
+        SpaceSelectorListItemData(id: "!aaabaa:matrix.org", avatar: nil, icon: UIImage(systemName: "number"), displayName: "Default Space", notificationCount: 0, highlightedNotificationCount: 0, hasSubItems: false),
+        SpaceSelectorListItemData(id: "!zzasds:matrix.org", avatar: nil, icon: UIImage(systemName: "number"), displayName: "Space with sub items", notificationCount: 0, highlightedNotificationCount: 0, hasSubItems: true),
+        SpaceSelectorListItemData(id: "!scthve:matrix.org", avatar: nil, icon: UIImage(systemName: "number"), displayName: "Space with notifications", notificationCount: 55, highlightedNotificationCount: 0, hasSubItems: true),
+        SpaceSelectorListItemData(id: "!ferggs:matrix.org", avatar: nil, icon: UIImage(systemName: "number"), displayName: "Space with highlight", notificationCount: 99, highlightedNotificationCount: 50, hasSubItems: false)
+    ]
+
+    var spaceListSubject: CurrentValueSubject<[SpaceSelectorListItemData], Never>
+    var parentSpaceNameSubject: CurrentValueSubject<String?, Never>
+    var selectedSpaceId: String?
+
+    init(spaceList: [SpaceSelectorListItemData] = defaultSpaceList, parentSpaceName: String? = nil, selectedSpaceId: String = SpaceSelectorConstants.homeSpaceId) {
+        self.spaceListSubject = CurrentValueSubject(spaceList)
+        self.parentSpaceNameSubject = CurrentValueSubject(parentSpaceName)
+        self.selectedSpaceId = selectedSpaceId
+    }
+}

RiotSwiftUI/Modules/Spaces/SpaceSelectorBottomSheet/SpaceSelector/Service/SpaceSelectorServiceProtocol.swift

@@ -0,0 +1,24 @@
+// 
+// Copyright 2021 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 Foundation
+import Combine
+
+protocol SpaceSelectorServiceProtocol {
+    var spaceListSubject: CurrentValueSubject<[SpaceSelectorListItemData], Never> { get }
+    var parentSpaceNameSubject: CurrentValueSubject<String?, Never> { get }
+    var selectedSpaceId: String? { get }
+}