95 lines
3.1 KiB
Swift
95 lines
3.1 KiB
Swift
//
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// Copyright 2022 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 Combine
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import SwiftUI
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typealias MessageForwardingScreenViewModelType = StateStoreViewModel<MessageForwardingScreenViewState, MessageForwardingScreenViewAction>
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class MessageForwardingScreenViewModel: MessageForwardingScreenViewModelType, MessageForwardingScreenViewModelProtocol {
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private let roomSummaryProvider: RoomSummaryProviderProtocol?
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private let sourceRoomID: String
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private var actionsSubject: PassthroughSubject<MessageForwardingScreenViewModelAction, Never> = .init()
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var actions: AnyPublisher<MessageForwardingScreenViewModelAction, Never> {
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actionsSubject.eraseToAnyPublisher()
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}
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init(roomSummaryProvider: RoomSummaryProviderProtocol,
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sourceRoomID: String) {
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self.roomSummaryProvider = roomSummaryProvider
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self.sourceRoomID = sourceRoomID
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super.init(initialViewState: MessageForwardingScreenViewState())
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roomSummaryProvider.roomListPublisher
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.receive(on: DispatchQueue.main)
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.sink { [weak self] _ in
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self?.updateRooms()
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}
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.store(in: &cancellables)
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updateRooms()
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}
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override func process(viewAction: MessageForwardingScreenViewAction) {
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switch viewAction {
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case .cancel:
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actionsSubject.send(.dismiss)
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case .send:
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guard let roomID = state.selectedRoomID else {
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fatalError()
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}
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actionsSubject.send(.send(roomID: roomID))
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case .selectRoom(let roomID):
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state.selectedRoomID = roomID
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}
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}
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// MARK: - Private
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private func updateRooms() {
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guard let roomSummaryProvider else {
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MXLog.error("Room summary provider unavailable")
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return
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}
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MXLog.verbose("Updating rooms")
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var rooms = [MessageForwardingRoom]()
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for summary in roomSummaryProvider.roomListPublisher.value {
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switch summary {
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case .empty, .invalidated:
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continue
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case .filled(let details):
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if details.id == sourceRoomID {
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continue
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}
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let room = MessageForwardingRoom(id: details.id, name: details.name, alias: details.canonicalAlias, avatarURL: details.avatarURL)
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rooms.append(room)
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}
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}
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state.rooms = rooms
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MXLog.verbose("Finished updating rooms")
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}
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}
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