348 lines
15 KiB
Swift
348 lines
15 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 RoomDetailsScreenViewModelType = StateStoreViewModel<RoomDetailsScreenViewState, RoomDetailsScreenViewAction>
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class RoomDetailsScreenViewModel: RoomDetailsScreenViewModelType, RoomDetailsScreenViewModelProtocol {
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private let roomProxy: RoomProxyProtocol
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private let clientProxy: ClientProxyProtocol
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private let analyticsService: AnalyticsService
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private let mediaProvider: MediaProviderProtocol
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private let userIndicatorController: UserIndicatorControllerProtocol
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private let notificationSettingsProxy: NotificationSettingsProxyProtocol
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private let attributedStringBuilder: AttributedStringBuilderProtocol
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private var dmRecipient: RoomMemberProxyProtocol?
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private var actionsSubject: PassthroughSubject<RoomDetailsScreenViewModelAction, Never> = .init()
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var actions: AnyPublisher<RoomDetailsScreenViewModelAction, Never> {
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actionsSubject.eraseToAnyPublisher()
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}
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init(roomProxy: RoomProxyProtocol,
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clientProxy: ClientProxyProtocol,
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mediaProvider: MediaProviderProtocol,
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analyticsService: AnalyticsService,
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userIndicatorController: UserIndicatorControllerProtocol,
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notificationSettingsProxy: NotificationSettingsProxyProtocol,
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attributedStringBuilder: AttributedStringBuilderProtocol) {
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self.roomProxy = roomProxy
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self.clientProxy = clientProxy
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self.mediaProvider = mediaProvider
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self.analyticsService = analyticsService
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self.userIndicatorController = userIndicatorController
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self.notificationSettingsProxy = notificationSettingsProxy
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self.attributedStringBuilder = attributedStringBuilder
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let topic = attributedStringBuilder.fromPlain(roomProxy.topic)
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super.init(initialViewState: .init(details: roomProxy.details,
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isEncrypted: roomProxy.isEncrypted,
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isDirect: roomProxy.isDirect,
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topic: topic,
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topicSummary: topic?.unattributedStringByReplacingNewlinesWithSpaces(),
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joinedMembersCount: roomProxy.joinedMembersCount,
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notificationSettingsState: .loading,
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bindings: .init()),
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imageProvider: mediaProvider)
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Task {
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let userID = roomProxy.ownUserID
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if case let .success(permission) = await roomProxy.canUserJoinCall(userID: userID) {
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state.canJoinCall = permission
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}
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}
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Task {
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if case let .success(permalinkURL) = await roomProxy.matrixToPermalink() {
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state.permalink = permalinkURL
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}
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}
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updateRoomInfo()
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Task { await updatePowerLevelPermissions() }
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setupRoomSubscription()
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Task { await fetchMembersIfNeeded() }
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setupNotificationSettingsSubscription()
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fetchNotificationSettings()
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}
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// MARK: - Public
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func stop() {
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// Work around QLPreviewController dismissal issues, see the InteractiveQuickLookModifier.
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state.bindings.mediaPreviewItem = nil
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}
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override func process(viewAction: RoomDetailsScreenViewAction) {
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switch viewAction {
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case .processTapPeople:
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actionsSubject.send(.requestMemberDetailsPresentation)
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case .processTapInvite:
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actionsSubject.send(.requestInvitePeoplePresentation)
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case .processTapLeave:
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guard state.joinedMembersCount > 1 else {
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state.bindings.leaveRoomAlertItem = LeaveRoomAlertItem(roomID: roomProxy.id, isDM: roomProxy.isEncryptedOneToOneRoom, state: .empty)
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return
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}
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state.bindings.leaveRoomAlertItem = LeaveRoomAlertItem(roomID: roomProxy.id, isDM: roomProxy.isEncryptedOneToOneRoom, state: roomProxy.isPublic ? .public : .private)
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case .confirmLeave:
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Task { await leaveRoom() }
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case .processTapIgnore:
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state.bindings.ignoreUserRoomAlertItem = .init(action: .ignore)
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case .processTapUnignore:
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state.bindings.ignoreUserRoomAlertItem = .init(action: .unignore)
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case .processTapEdit, .processTapAddTopic:
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actionsSubject.send(.requestEditDetailsPresentation)
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case .ignoreConfirmed:
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Task { await ignore() }
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case .unignoreConfirmed:
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Task { await unignore() }
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case .processTapNotifications:
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if state.notificationSettingsState.isError {
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fetchNotificationSettings()
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} else {
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actionsSubject.send(.requestNotificationSettingsPresentation)
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}
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case .processToggleMuteNotifications:
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Task { await toggleMuteNotifications() }
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case .displayAvatar:
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displayFullScreenAvatar()
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case .processTapPolls:
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actionsSubject.send(.requestPollsHistoryPresentation)
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case .toggleFavourite(let isFavourite):
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Task { await toggleFavourite(isFavourite) }
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case .processTapRolesAndPermissions:
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actionsSubject.send(.requestRolesAndPermissionsPresentation)
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case .processTapCall:
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actionsSubject.send(.startCall)
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}
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}
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// MARK: - Private
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private func setupRoomSubscription() {
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roomProxy.actionsPublisher
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.filter { $0 == .roomInfoUpdate }
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.throttle(for: .milliseconds(200), scheduler: DispatchQueue.main, latest: true)
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.sink { [weak self] _ in
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self?.updateRoomInfo()
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Task { await self?.updatePowerLevelPermissions() }
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}
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.store(in: &cancellables)
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}
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private func updateRoomInfo() {
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state.details = roomProxy.details
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let topic = attributedStringBuilder.fromPlain(roomProxy.topic)
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state.topic = topic
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state.topicSummary = topic?.unattributedStringByReplacingNewlinesWithSpaces()
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state.joinedMembersCount = roomProxy.joinedMembersCount
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Task {
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state.bindings.isFavourite = await roomProxy.isFavourite
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}
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}
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private func fetchMembersIfNeeded() async {
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// We need to fetch members just in 1-to-1 chat to get the member object for the other person
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guard roomProxy.isEncryptedOneToOneRoom else {
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return
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}
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roomProxy.membersPublisher
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.receive(on: DispatchQueue.main)
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.sink { [weak self, ownUserID = roomProxy.ownUserID] members in
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guard let self else { return }
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let accountOwner = members.first(where: { $0.userID == ownUserID })
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let dmRecipient = members.first(where: { $0.userID != ownUserID })
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self.dmRecipient = dmRecipient
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self.state.dmRecipient = dmRecipient.map(RoomMemberDetails.init(withProxy:))
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self.state.accountOwner = accountOwner.map(RoomMemberDetails.init(withProxy:))
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}
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.store(in: &cancellables)
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await roomProxy.updateMembers()
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}
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private func updatePowerLevelPermissions() async {
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state.canEditRoomName = await (try? roomProxy.canUser(userID: roomProxy.ownUserID, sendStateEvent: .roomName).get()) == true
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state.canEditRoomTopic = await (try? roomProxy.canUser(userID: roomProxy.ownUserID, sendStateEvent: .roomTopic).get()) == true
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state.canEditRoomAvatar = await (try? roomProxy.canUser(userID: roomProxy.ownUserID, sendStateEvent: .roomAvatar).get()) == true
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state.canEditRolesOrPermissions = await (try? roomProxy.suggestedRole(for: roomProxy.ownUserID).get()) == .administrator
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state.canInviteUsers = await (try? roomProxy.canUserInvite(userID: roomProxy.ownUserID).get()) == true
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}
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private func setupNotificationSettingsSubscription() {
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notificationSettingsProxy.callbacks
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.receive(on: DispatchQueue.main)
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.sink { [weak self] callback in
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guard let self else { return }
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switch callback {
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case .settingsDidChange:
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self.fetchNotificationSettings()
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}
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}
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.store(in: &cancellables)
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}
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private func fetchNotificationSettings() {
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Task {
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await fetchRoomNotificationSettings()
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}
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}
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private func fetchRoomNotificationSettings() async {
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do {
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let notificationMode = try await notificationSettingsProxy.getNotificationSettings(roomId: roomProxy.id,
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isEncrypted: roomProxy.isEncrypted,
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isOneToOne: roomProxy.activeMembersCount == 2)
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state.notificationSettingsState = .loaded(settings: notificationMode)
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} catch {
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state.notificationSettingsState = .error
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state.bindings.alertInfo = AlertInfo(id: .alert,
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title: L10n.commonError,
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message: L10n.screenRoomDetailsErrorLoadingNotificationSettings)
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}
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}
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private func toggleMuteNotifications() async {
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guard case .loaded(let notificationMode) = state.notificationSettingsState else { return }
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state.isProcessingMuteToggleAction = true
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switch notificationMode.mode {
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case .mute:
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do {
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try await notificationSettingsProxy.unmuteRoom(roomId: roomProxy.id,
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isEncrypted: roomProxy.isEncrypted,
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isOneToOne: roomProxy.activeMembersCount == 2)
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} catch {
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state.bindings.alertInfo = AlertInfo(id: .alert,
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title: L10n.commonError,
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message: L10n.screenRoomDetailsErrorUnmuting)
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}
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default:
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do {
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try await notificationSettingsProxy.setNotificationMode(roomId: roomProxy.id, mode: .mute)
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} catch {
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state.bindings.alertInfo = AlertInfo(id: .alert,
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title: L10n.commonError,
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message: L10n.screenRoomDetailsErrorMuting)
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}
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}
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state.isProcessingMuteToggleAction = false
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}
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private func toggleFavourite(_ isFavourite: Bool) async {
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if case let .failure(error) = await roomProxy.flagAsFavourite(isFavourite) {
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MXLog.error("Failed flagging room as favourite with error: \(error)")
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state.bindings.isFavourite = !isFavourite
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} else {
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analyticsService.trackInteraction(name: .MobileRoomFavouriteToggle)
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}
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}
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private static let leaveRoomLoadingID = "LeaveRoomLoading"
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private func leaveRoom() async {
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userIndicatorController.submitIndicator(UserIndicator(id: Self.leaveRoomLoadingID, type: .modal, title: L10n.commonLeavingRoom, persistent: true))
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let result = await roomProxy.leaveRoom()
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userIndicatorController.retractIndicatorWithId(Self.leaveRoomLoadingID)
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switch result {
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case .failure:
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state.bindings.alertInfo = AlertInfo(id: .unknown)
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case .success:
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actionsSubject.send(.leftRoom)
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}
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}
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private func ignore() async {
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guard let dmUserID = dmRecipient?.userID else {
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MXLog.error("Attempting to ignore a nil DM Recipient")
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state.bindings.alertInfo = .init(id: .unknown)
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return
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}
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state.isProcessingIgnoreRequest = true
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let result = await clientProxy.ignoreUser(dmUserID)
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state.isProcessingIgnoreRequest = false
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switch result {
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case .success:
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// Mutating the optional in place when built for Release crashes 🤷♂️
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var dmRecipient = state.dmRecipient
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dmRecipient?.isIgnored = true
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state.dmRecipient = dmRecipient
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case .failure:
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state.bindings.alertInfo = .init(id: .unknown)
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}
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}
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private func unignore() async {
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guard let dmUserID = dmRecipient?.userID else {
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MXLog.error("Attempting to unignore a nil DM Recipient")
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state.bindings.alertInfo = .init(id: .unknown)
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return
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}
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state.isProcessingIgnoreRequest = true
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let result = await clientProxy.unignoreUser(dmUserID)
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state.isProcessingIgnoreRequest = false
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switch result {
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case .success:
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// Mutating the optional in place when built for Release crashes 🤷♂️
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var dmRecipient = state.dmRecipient
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dmRecipient?.isIgnored = false
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state.dmRecipient = dmRecipient
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case .failure:
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state.bindings.alertInfo = .init(id: .unknown)
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}
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}
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private func displayFullScreenAvatar() {
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guard let avatarURL = roomProxy.avatarURL else {
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return
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}
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let loadingIndicatorIdentifier = "roomAvatarLoadingIndicator"
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userIndicatorController.submitIndicator(UserIndicator(id: loadingIndicatorIdentifier, type: .modal, title: L10n.commonLoading, persistent: true))
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Task {
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defer {
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userIndicatorController.retractIndicatorWithId(loadingIndicatorIdentifier)
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}
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// We don't actually know the mime type here, assume it's an image.
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if case let .success(file) = await mediaProvider.loadFileFromSource(.init(url: avatarURL, mimeType: "image/jpeg")) {
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state.bindings.mediaPreviewItem = MediaPreviewItem(file: file, title: roomProxy.roomTitle)
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}
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}
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}
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}
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private extension AttributedString {
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/// Returns a new string without attributes and in which newlines are replaced with spaces
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func unattributedStringByReplacingNewlinesWithSpaces() -> AttributedString {
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AttributedString(characters.map { $0.isNewline ? " " : $0 })
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}
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}
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