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73 lines
2.4 KiB
Swift
73 lines
2.4 KiB
Swift
//
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// Copyright 2021 New Vector Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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import Foundation
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class AddRoomItemsProcessor: MatrixItemChooserProcessorProtocol {
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// MARK: Private
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private let parentSpace: MXSpace
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// MARK: Setup
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init(parentSpace: MXSpace) {
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self.parentSpace = parentSpace
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}
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// MARK: MatrixItemChooserSelectionProcessorProtocol
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private(set) var dataSource: MatrixItemChooserDataSource = MatrixItemChooserRoomsDataSource()
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var loadingText: String? {
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nil
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}
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func computeSelection(withIds itemsIds: [String], completion: @escaping (Result<Void, Error>) -> Void) {
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addChild(from: itemsIds, at: 0, completion: completion)
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}
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func isItemIncluded(_ item: MatrixListItemData) -> Bool {
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!parentSpace.isRoomAChild(roomId: item.id)
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}
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// MARK: Private
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/// Add room with roomId from list of room IDs at index to the parentSpace.
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/// Recurse to the next index once done.
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func addChild(from roomIds: [String], at index: Int, completion: @escaping (Result<Void, Error>) -> Void) {
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guard index < roomIds.count else {
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// last item has been processed or list is empty --> the recursion has finished
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completion(Result.success(()))
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return
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}
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let roomId = roomIds[index]
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guard !parentSpace.isRoomAChild(roomId: roomId) else {
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addChild(from: roomIds, at: index + 1, completion: completion)
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return
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}
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parentSpace.addChild(roomId: roomIds[index]) { [weak self] response in
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switch response {
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case .success:
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self?.addChild(from: roomIds, at: index + 1, completion: completion)
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case .failure(let error):
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completion(Result.failure(error))
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}
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}
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}
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}
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