mirror of
https://github.com/Novaloop-AG/element-x-ios.git
synced 2026-11-02 12:07:55 +00:00
Introduced the concepts of room summary and event brief.
This commit is contained in:
Stefan Ceriu
@@ -25,9 +25,11 @@ typealias HomeScreenViewModelType = StateStoreViewModel<HomeScreenViewState,
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class HomeScreenViewModel: HomeScreenViewModelType, HomeScreenViewModelProtocol {
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private let mediaProvider: MediaProviderProtocol
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private let attributedStringBuilder: AttributedStringBuilderProtocol
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private var roomUpdateListeners = Set<AnyCancellable>()
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private var roomList: [RoomProxyProtocol]? {
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private var roomList: [RoomSummaryProtocol]? {
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didSet {
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self.state.isLoadingRooms = (roomList?.count ?? 0 == 0)
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}
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@@ -37,8 +39,13 @@ class HomeScreenViewModel: HomeScreenViewModelType, HomeScreenViewModelProtocol
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// MARK: - Setup
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init(userDisplayName: String, userAvatarURL: String?, mediaProvider: MediaProviderProtocol) {
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init(userDisplayName: String,
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userAvatarURL: String?,
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mediaProvider: MediaProviderProtocol,
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attributedStringBuilder: AttributedStringBuilderProtocol) {
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self.mediaProvider = mediaProvider
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self.attributedStringBuilder = attributedStringBuilder
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super.init(initialViewState: HomeScreenViewState(userDisplayName: userDisplayName, isLoadingRooms: true))
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if let userAvatarURL = userAvatarURL {
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@@ -63,24 +70,31 @@ class HomeScreenViewModel: HomeScreenViewModelType, HomeScreenViewModelProtocol
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}
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}
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func updateWithRoomList(_ roomList: [RoomProxyProtocol]) {
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func updateWithRoomList(_ roomList: [RoomSummaryProtocol]) {
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self.roomList = roomList
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state.rooms = roomList.map { roomProxy in
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buildRoomFromProxy(roomProxy)
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state.rooms = roomList.map { roomSummary in
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buildOrUpdateRoomFromSummary(roomSummary)
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}
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roomUpdateListeners.removeAll()
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roomList.forEach({ roomProxy in
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roomProxy.callbacks.sink { [weak self] callback in
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roomList.forEach({ roomSummary in
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roomSummary.callbacks.sink { [weak self] callback in
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guard let self = self else {
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return
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}
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switch callback {
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case .updatedMessages:
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self?.loadLastMessageForRoomWithIdentifier(roomProxy.id)
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case .updatedData:
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if let index = self.state.rooms.firstIndex(where: { $0.id == roomSummary.id }) {
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self.state.rooms[index] = self.buildOrUpdateRoomFromSummary(roomSummary)
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}
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}
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}
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.store(in: &roomUpdateListeners)
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})
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}
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func updateWithUserAvatar(_ avatar: UIImage?) {
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@@ -90,100 +104,47 @@ class HomeScreenViewModel: HomeScreenViewModelType, HomeScreenViewModelProtocol
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// MARK: - Private
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private func loadRoomDataForIdentifier(_ roomIdentifier: String) {
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let room = state.rooms.first(where: { $0.id == roomIdentifier })
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if room?.avatar == nil {
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loadAvatarForRoomWithIdentifier(roomIdentifier)
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}
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if room?.displayName == nil {
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loadRoomDisplayNameForRoomWithIdentifier(roomIdentifier)
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}
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if room?.lastMessage == nil {
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loadLastMessageForRoomWithIdentifier(roomIdentifier)
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}
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}
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private func loadAvatarForRoomWithIdentifier(_ roomIdentifier: String) {
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guard let room = roomList?.filter({ $0.id == roomIdentifier }).first,
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let avatarURLString = room.avatarURL else {
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return
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}
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mediaProvider.loadImageFromURL(avatarURLString) { [weak self] result in
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guard let self = self else { return }
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if case let .success(image) = result {
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self.updateAvatar(image, forRoomWithIdentifier: roomIdentifier)
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}
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}
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}
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private func updateAvatar(_ avatar: UIImage?, forRoomWithIdentifier roomIdentifier: String) {
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guard let index = self.state.rooms.firstIndex(where: { $0.id == roomIdentifier }) else {
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guard let roomSummary = roomList?.first(where: { $0.id == roomIdentifier }) else {
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MXLog.error("Invalid room identifier")
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return
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}
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self.state.rooms[index].avatar = avatar
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roomSummary.loadData()
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}
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private func loadRoomDisplayNameForRoomWithIdentifier(_ roomIdentifier: String) {
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guard let room = roomList?.filter({ $0.id == roomIdentifier }).first else {
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return
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private func buildOrUpdateRoomFromSummary(_ roomSummary: RoomSummaryProtocol) -> HomeScreenRoom {
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let lastMessage = lastMessageFromEventBrief(roomSummary.lastMessage)
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guard var room = self.state.rooms.first(where: { $0.id == roomSummary.id }) else {
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return HomeScreenRoom(id: roomSummary.id,
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displayName: roomSummary.name,
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topic: roomSummary.topic,
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lastMessage: lastMessage,
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avatar: roomSummary.avatar,
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isDirect: roomSummary.isDirect,
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isEncrypted: roomSummary.isEncrypted,
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isSpace: roomSummary.isSpace,
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isTombstoned: roomSummary.isTombstoned)
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}
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room.displayName { [weak self] result in
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guard let self = self else { return }
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switch result {
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case .success(let displayName):
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self.updateDisplayName(displayName, forRoomWithIdentifier: roomIdentifier)
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default:
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break
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}
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}
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room.avatar = roomSummary.avatar
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room.displayName = roomSummary.displayName
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room.lastMessage = lastMessage
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return room
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}
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private func updateDisplayName(_ displayName: String, forRoomWithIdentifier roomIdentifier: String) {
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guard let index = self.state.rooms.firstIndex(where: { $0.id == roomIdentifier }) else {
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return
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private func lastMessageFromEventBrief(_ eventBrief: EventBrief?) -> String? {
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guard let eventBrief = eventBrief else {
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return nil
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}
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self.state.rooms[index].displayName = displayName
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}
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private func loadLastMessageForRoomWithIdentifier(_ roomIdentifier: String) {
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guard let room = roomList?.filter({ $0.id == roomIdentifier }).first else {
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return
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if let htmlBody = eventBrief.htmlBody,
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let lastMessageAttributedString = attributedStringBuilder.fromHTML(htmlBody) {
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return "\(eventBrief.senderName): \(String(lastMessageAttributedString.characters))"
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} else {
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return "\(eventBrief.senderName): \(eventBrief.body)"
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}
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if let lastMessage = room.messages.last {
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self.updateLastMessage(lastMessage.body, forRoomWithIdentifier: roomIdentifier)
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return
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}
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room.paginateBackwards(count: 1, callback: nil)
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}
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private func updateLastMessage(_ lastMessage: String, forRoomWithIdentifier roomIdentifier: String) {
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guard let index = self.state.rooms.firstIndex(where: { $0.id == roomIdentifier }) else {
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return
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}
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self.state.rooms[index].lastMessage = lastMessage
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}
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private func buildRoomFromProxy(_ roomProxy: RoomProxyProtocol) -> HomeScreenRoom {
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let avatar = mediaProvider.imageForURL(roomProxy.avatarURL)
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return HomeScreenRoom(id: roomProxy.id,
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displayName: roomProxy.name,
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topic: roomProxy.topic,
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lastMessage: roomProxy.messages.last?.body,
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avatar: avatar,
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isDirect: roomProxy.isDirect,
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isEncrypted: roomProxy.isEncrypted,
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isSpace: roomProxy.isSpace,
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isTombstoned: roomProxy.isTombstoned)
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}
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}
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