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Introduce a StartChatFlowCoordinator instead of handing a navigation stack to the Screen Coordinator. (#4674)
* Introduce a basic StartChatFlowCoordinator. * Move the rest of the start chat flow from the screen coordinator into the flow coordinator. * Add a UI test for the entire start chat flow. * Refactor CreateRoom… to CreateRoomScreen…
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Doug
GitHub
@@ -10,38 +10,26 @@ import Combine
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import SwiftUI
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struct StartChatScreenCoordinatorParameters {
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let orientationManager: OrientationManagerProtocol
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let userSession: UserSessionProtocol
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let userIndicatorController: UserIndicatorControllerProtocol
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weak var navigationStackCoordinator: NavigationStackCoordinator?
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let userDiscoveryService: UserDiscoveryServiceProtocol
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let mediaUploadingPreprocessor: MediaUploadingPreprocessor
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let userIndicatorController: UserIndicatorControllerProtocol
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let appSettings: AppSettings
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let analytics: AnalyticsService
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}
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enum StartChatScreenCoordinatorAction {
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case close
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case openRoom(withIdentifier: String)
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case createRoom
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case openRoom(roomID: String)
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case openRoomDirectorySearch
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}
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final class StartChatScreenCoordinator: CoordinatorProtocol {
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private let parameters: StartChatScreenCoordinatorParameters
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private var viewModel: StartChatScreenViewModelProtocol
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private let actionsSubject: PassthroughSubject<StartChatScreenCoordinatorAction, Never> = .init()
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private var cancellables = Set<AnyCancellable>()
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private var createRoomParameters = CurrentValueSubject<CreateRoomFlowParameters, Never>(.init())
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private var createRoomParametersPublisher: CurrentValuePublisher<CreateRoomFlowParameters, Never> {
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createRoomParameters.asCurrentValuePublisher()
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}
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private let selectedUsers = CurrentValueSubject<[UserProfileProxy], Never>([])
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private var selectedUsersPublisher: CurrentValuePublisher<[UserProfileProxy], Never> {
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selectedUsers.asCurrentValuePublisher()
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}
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private let actionsSubject: PassthroughSubject<StartChatScreenCoordinatorAction, Never> = .init()
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var actions: AnyPublisher<StartChatScreenCoordinatorAction, Never> {
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actionsSubject.eraseToAnyPublisher()
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}
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@@ -63,10 +51,9 @@ final class StartChatScreenCoordinator: CoordinatorProtocol {
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case .close:
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actionsSubject.send(.close)
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case .createRoom:
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// before creating a room we select the users we would like to invite in that room
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presentInviteUsersScreen()
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case .showRoom(let identifier):
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actionsSubject.send(.openRoom(withIdentifier: identifier))
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actionsSubject.send(.createRoom)
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case .showRoom(let roomID):
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actionsSubject.send(.openRoom(roomID: roomID))
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case .openRoomDirectorySearch:
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actionsSubject.send(.openRoomDirectorySearch)
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}
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@@ -79,126 +66,4 @@ final class StartChatScreenCoordinator: CoordinatorProtocol {
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func toPresentable() -> AnyView {
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AnyView(StartChatScreen(context: viewModel.context))
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}
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// MARK: - Private
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private func presentInviteUsersScreen() {
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let inviteParameters = InviteUsersScreenCoordinatorParameters(userSession: parameters.userSession,
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selectedUsers: selectedUsersPublisher,
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roomType: .draft,
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userDiscoveryService: parameters.userDiscoveryService,
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userIndicatorController: parameters.userIndicatorController,
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appSettings: parameters.appSettings)
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let coordinator = InviteUsersScreenCoordinator(parameters: inviteParameters)
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coordinator.actions.sink { [weak self] action in
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guard let self else { return }
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switch action {
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case .dismiss:
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fatalError("Not shown in this flow.")
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case .proceed(let selectedUsers):
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self.selectedUsers.send(selectedUsers)
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openCreateRoomScreen()
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}
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}
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.store(in: &cancellables)
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parameters.navigationStackCoordinator?.push(coordinator) { [weak self] in
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self?.createRoomParameters.send(.init())
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self?.selectedUsers.send([])
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}
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}
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private func openCreateRoomScreen() {
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let createParameters = CreateRoomCoordinatorParameters(userSession: parameters.userSession,
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userIndicatorController: parameters.userIndicatorController,
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createRoomParameters: createRoomParametersPublisher,
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selectedUsers: selectedUsers.value,
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appSettings: parameters.appSettings,
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analytics: parameters.analytics)
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let coordinator = CreateRoomCoordinator(parameters: createParameters)
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coordinator.actions.sink { [weak self] action in
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guard let self else { return }
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switch action {
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case .updateSelectedUsers(let users):
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self.selectedUsers.send(users)
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case .updateDetails(let details):
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self.createRoomParameters.send(details)
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case .openRoom(let identifier):
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self.actionsSubject.send(.openRoom(withIdentifier: identifier))
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case .displayMediaPickerWithMode(let mode):
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self.displayMediaPickerWithMode(mode)
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case .removeImage:
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var parameters = self.createRoomParameters.value
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parameters.avatarImageMedia = nil
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self.createRoomParameters.send(parameters)
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}
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}
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.store(in: &cancellables)
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parameters.navigationStackCoordinator?.push(coordinator)
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}
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// MARK: - Private
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private func displayMediaPickerWithMode(_ mode: MediaPickerScreenMode) {
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let stackCoordinator = NavigationStackCoordinator()
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let mediaPickerCoordinator = MediaPickerScreenCoordinator(mode: mode,
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userIndicatorController: parameters.userIndicatorController,
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orientationManager: parameters.orientationManager) { [weak self] action in
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guard let self else { return }
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switch action {
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case .cancel:
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parameters.navigationStackCoordinator?.setSheetCoordinator(nil)
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case .selectedMediaAtURLs(let urls):
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guard urls.count == 1,
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let url = urls.first else {
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fatalError("Received an invalid number of URLs")
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}
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processAvatar(from: url)
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}
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}
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stackCoordinator.setRootCoordinator(mediaPickerCoordinator)
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parameters.navigationStackCoordinator?.setSheetCoordinator(stackCoordinator)
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}
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private func processAvatar(from url: URL) {
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parameters.navigationStackCoordinator?.setSheetCoordinator(nil)
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showLoadingIndicator()
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Task { [weak self] in
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guard let self else { return }
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do {
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guard case let .success(maxUploadSize) = await parameters.userSession.clientProxy.maxMediaUploadSize else {
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MXLog.error("Failed to get max upload size")
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parameters.userIndicatorController.alertInfo = AlertInfo(id: .init())
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return
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}
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let media = try await parameters.mediaUploadingPreprocessor.processMedia(at: url, maxUploadSize: maxUploadSize).get()
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var parameters = createRoomParameters.value
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parameters.avatarImageMedia = media
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createRoomParameters.send(parameters)
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} catch {
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parameters.userIndicatorController.alertInfo = AlertInfo(id: .init())
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}
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hideLoadingIndicator()
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}
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}
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// MARK: Loading indicator
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private static let loadingIndicatorIdentifier = "\(StartChatScreenCoordinator.self)-Loading"
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private func showLoadingIndicator() {
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parameters.userIndicatorController.submitIndicator(UserIndicator(id: Self.loadingIndicatorIdentifier,
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type: .modal,
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title: L10n.commonLoading,
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persistent: true))
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}
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private func hideLoadingIndicator() {
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parameters.userIndicatorController.retractIndicatorWithId(Self.loadingIndicatorIdentifier)
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}
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}
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