2020-11-26 19:10:53 +04:00

846 lines
32 KiB
Swift

import Postbox
import SwiftSignalKit
import TelegramApi
import MtProtoKit
import SyncCore
public struct GroupCallInfo: Equatable {
public var id: Int64
public var accessHash: Int64
public var participantCount: Int
public var clientParams: String?
}
public struct GroupCallSummary: Equatable {
public var info: GroupCallInfo
public var topParticipants: [GroupCallParticipantsContext.Participant]
}
private extension GroupCallInfo {
init?(_ call: Api.GroupCall) {
switch call {
case let .groupCall(_, id, accessHash, participantCount, params, _):
var clientParams: String?
if let params = params {
switch params {
case let .dataJSON(data):
clientParams = data
}
}
self.init(
id: id,
accessHash: accessHash,
participantCount: Int(participantCount),
clientParams: clientParams
)
case .groupCallDiscarded:
return nil
}
}
}
public enum GetCurrentGroupCallError {
case generic
}
public func getCurrentGroupCall(account: Account, callId: Int64, accessHash: Int64) -> Signal<GroupCallSummary?, GetCurrentGroupCallError> {
return account.network.request(Api.functions.phone.getGroupCall(call: .inputGroupCall(id: callId, accessHash: accessHash)))
|> mapError { _ -> GetCurrentGroupCallError in
return .generic
}
|> mapToSignal { result -> Signal<GroupCallSummary?, GetCurrentGroupCallError> in
switch result {
case let .groupCall(call, _, participants, _, users):
return account.postbox.transaction { transaction -> GroupCallSummary? in
guard let info = GroupCallInfo(call) else {
return nil
}
var peers: [Peer] = []
var peerPresences: [PeerId: PeerPresence] = [:]
for user in users {
let telegramUser = TelegramUser(user: user)
peers.append(telegramUser)
if let presence = TelegramUserPresence(apiUser: user) {
peerPresences[telegramUser.id] = presence
}
}
updatePeers(transaction: transaction, peers: peers, update: { _, updated -> Peer in
return updated
})
updatePeerPresences(transaction: transaction, accountPeerId: account.peerId, peerPresences: peerPresences)
var parsedParticipants: [GroupCallParticipantsContext.Participant] = []
loop: for participant in participants {
switch participant {
case let .groupCallParticipant(flags, userId, date, activeDate, source):
let peerId = PeerId(namespace: Namespaces.Peer.CloudUser, id: userId)
let ssrc = UInt32(bitPattern: source)
guard let peer = transaction.getPeer(peerId) else {
continue loop
}
var muteState: GroupCallParticipantsContext.Participant.MuteState?
if (flags & (1 << 0)) != 0 {
let canUnmute = (flags & (1 << 2)) != 0
muteState = GroupCallParticipantsContext.Participant.MuteState(canUnmute: canUnmute)
}
parsedParticipants.append(GroupCallParticipantsContext.Participant(
peer: peer,
ssrc: ssrc,
joinTimestamp: date,
muteState: muteState
))
}
}
return GroupCallSummary(
info: info,
topParticipants: parsedParticipants
)
}
|> mapError { _ -> GetCurrentGroupCallError in
return .generic
}
}
}
}
public enum CreateGroupCallError {
case generic
}
public func createGroupCall(account: Account, peerId: PeerId) -> Signal<GroupCallInfo, CreateGroupCallError> {
return account.postbox.transaction { transaction -> Api.InputChannel? in
return transaction.getPeer(peerId).flatMap(apiInputChannel)
}
|> castError(CreateGroupCallError.self)
|> mapToSignal { inputPeer -> Signal<GroupCallInfo, CreateGroupCallError> in
guard let inputPeer = inputPeer else {
return .fail(.generic)
}
return account.network.request(Api.functions.phone.createGroupCall(channel: inputPeer, randomId: Int32.random(in: Int32.min ... Int32.max)))
|> mapError { _ -> CreateGroupCallError in
return .generic
}
|> mapToSignal { result -> Signal<GroupCallInfo, CreateGroupCallError> in
var parsedCall: GroupCallInfo?
loop: for update in result.allUpdates {
switch update {
case let .updateGroupCall(call):
parsedCall = GroupCallInfo(call)
break loop
default:
break
}
}
guard let callInfo = parsedCall else {
return .fail(.generic)
}
return account.postbox.transaction { transaction -> GroupCallInfo in
transaction.updatePeerCachedData(peerIds: Set([peerId]), update: { _, cachedData -> CachedPeerData? in
if let cachedData = cachedData as? CachedChannelData {
return cachedData.withUpdatedActiveCall(CachedChannelData.ActiveCall(id: callInfo.id, accessHash: callInfo.accessHash))
} else {
return cachedData
}
})
account.stateManager.addUpdates(result)
return callInfo
}
|> castError(CreateGroupCallError.self)
}
}
}
public enum GetGroupCallParticipantsError {
case generic
}
public func getGroupCallParticipants(account: Account, callId: Int64, accessHash: Int64, offset: String, limit: Int32) -> Signal<GroupCallParticipantsContext.State, GetGroupCallParticipantsError> {
return account.network.request(Api.functions.phone.getGroupParticipants(call: .inputGroupCall(id: callId, accessHash: accessHash), offset: offset, limit: limit))
|> mapError { _ -> GetGroupCallParticipantsError in
return .generic
}
|> mapToSignal { result -> Signal<GroupCallParticipantsContext.State, GetGroupCallParticipantsError> in
return account.postbox.transaction { transaction -> GroupCallParticipantsContext.State in
var parsedParticipants: [GroupCallParticipantsContext.Participant] = []
let totalCount: Int
let version: Int32
let nextParticipantsFetchOffset: String?
switch result {
case let .groupParticipants(count, participants, nextOffset, users, apiVersion):
totalCount = Int(count)
version = apiVersion
if participants.count != 0 && !nextOffset.isEmpty {
nextParticipantsFetchOffset = nextOffset
} else {
nextParticipantsFetchOffset = nil
}
var peers: [Peer] = []
var peerPresences: [PeerId: PeerPresence] = [:]
for user in users {
let telegramUser = TelegramUser(user: user)
peers.append(telegramUser)
if let presence = TelegramUserPresence(apiUser: user) {
peerPresences[telegramUser.id] = presence
}
}
updatePeers(transaction: transaction, peers: peers, update: { _, updated -> Peer in
return updated
})
updatePeerPresences(transaction: transaction, accountPeerId: account.peerId, peerPresences: peerPresences)
loop: for participant in participants {
switch participant {
case let .groupCallParticipant(flags, userId, date, activeDate, source):
let peerId = PeerId(namespace: Namespaces.Peer.CloudUser, id: userId)
let ssrc = UInt32(bitPattern: source)
guard let peer = transaction.getPeer(peerId) else {
continue loop
}
var muteState: GroupCallParticipantsContext.Participant.MuteState?
if (flags & (1 << 0)) != 0 {
let canUnmute = (flags & (1 << 2)) != 0
muteState = GroupCallParticipantsContext.Participant.MuteState(canUnmute: canUnmute)
}
parsedParticipants.append(GroupCallParticipantsContext.Participant(
peer: peer,
ssrc: ssrc,
joinTimestamp: date,
activityTimestamp: activeDate,
muteState: muteState
))
}
}
}
return GroupCallParticipantsContext.State(
participants: parsedParticipants,
nextParticipantsFetchOffset: nextParticipantsFetchOffset,
adminIds: Set(),
isCreator: false,
totalCount: totalCount,
version: version
)
}
|> castError(GetGroupCallParticipantsError.self)
}
}
public enum JoinGroupCallError {
case generic
}
public struct JoinGroupCallResult {
public var callInfo: GroupCallInfo
public var state: GroupCallParticipantsContext.State
}
public func joinGroupCall(account: Account, peerId: PeerId, callId: Int64, accessHash: Int64, preferMuted: Bool, joinPayload: String) -> Signal<JoinGroupCallResult, JoinGroupCallError> {
var flags: Int32 = 0
if preferMuted {
flags |= (1 << 0)
}
return account.network.request(Api.functions.phone.joinGroupCall(flags: flags, call: .inputGroupCall(id: callId, accessHash: accessHash), params: .dataJSON(data: joinPayload)))
|> mapError { _ -> JoinGroupCallError in
return .generic
}
|> mapToSignal { updates -> Signal<JoinGroupCallResult, JoinGroupCallError> in
let admins = account.postbox.transaction { transaction -> Api.InputChannel? in
return transaction.getPeer(peerId).flatMap(apiInputChannel)
}
|> castError(JoinGroupCallError.self)
|> mapToSignal { inputChannel -> Signal<Api.channels.ChannelParticipants, JoinGroupCallError> in
guard let inputChannel = inputChannel else {
return .fail(.generic)
}
return account.network.request(Api.functions.channels.getParticipants(channel: inputChannel, filter: .channelParticipantsAdmins, offset: 0, limit: 100, hash: 0))
|> mapError { _ -> JoinGroupCallError in
return .generic
}
}
let channel = account.postbox.transaction { transaction -> TelegramChannel? in
return transaction.getPeer(peerId) as? TelegramChannel
}
|> castError(JoinGroupCallError.self)
return combineLatest(
account.network.request(Api.functions.phone.getGroupCall(call: .inputGroupCall(id: callId, accessHash: accessHash)))
|> mapError { _ -> JoinGroupCallError in
return .generic
},
getGroupCallParticipants(account: account, callId: callId, accessHash: accessHash, offset: "", limit: 100)
|> mapError { _ -> JoinGroupCallError in
return .generic
},
admins,
channel
)
|> mapToSignal { result, state, admins, channel -> Signal<JoinGroupCallResult, JoinGroupCallError> in
guard let channel = channel else {
return .fail(.generic)
}
var state = state
state.isCreator = channel.flags.contains(.isCreator)
account.stateManager.addUpdates(updates)
var maybeParsedCall: GroupCallInfo?
loop: for update in updates.allUpdates {
switch update {
case let .updateGroupCall(call):
maybeParsedCall = GroupCallInfo(call)
break loop
default:
break
}
}
guard let parsedCall = maybeParsedCall else {
return .fail(.generic)
}
var apiUsers: [Api.User] = []
var adminIds = Set<PeerId>()
switch admins {
case let .channelParticipants(_, participants, users):
apiUsers.append(contentsOf: users)
for participant in participants {
let parsedParticipant = ChannelParticipant(apiParticipant: participant)
switch parsedParticipant {
case .creator:
adminIds.insert(parsedParticipant.peerId)
case let .member(_, _, adminInfo, _, _):
if let adminInfo = adminInfo, adminInfo.rights.flags.contains(.canManageCalls) {
adminIds.insert(parsedParticipant.peerId)
}
}
}
default:
break
}
state.adminIds = adminIds
switch result {
case let .groupCall(call, sources, _, _, users):
guard let _ = GroupCallInfo(call) else {
return .fail(.generic)
}
apiUsers.append(contentsOf: users)
var peers: [Peer] = []
var peerPresences: [PeerId: PeerPresence] = [:]
for user in apiUsers {
let telegramUser = TelegramUser(user: user)
peers.append(telegramUser)
if let presence = TelegramUserPresence(apiUser: user) {
peerPresences[telegramUser.id] = presence
}
}
return account.postbox.transaction { transaction -> JoinGroupCallResult in
updatePeers(transaction: transaction, peers: peers, update: { _, updated -> Peer in
return updated
})
updatePeerPresences(transaction: transaction, accountPeerId: account.peerId, peerPresences: peerPresences)
return JoinGroupCallResult(
callInfo: parsedCall,
state: state
)
}
|> castError(JoinGroupCallError.self)
}
}
}
}
public enum LeaveGroupCallError {
case generic
}
public func leaveGroupCall(account: Account, callId: Int64, accessHash: Int64, source: UInt32) -> Signal<Never, LeaveGroupCallError> {
return account.network.request(Api.functions.phone.leaveGroupCall(call: .inputGroupCall(id: callId, accessHash: accessHash), source: Int32(bitPattern: source)))
|> mapError { _ -> LeaveGroupCallError in
return .generic
}
|> ignoreValues
}
public enum StopGroupCallError {
case generic
}
public func stopGroupCall(account: Account, peerId: PeerId, callId: Int64, accessHash: Int64) -> Signal<Never, StopGroupCallError> {
return account.network.request(Api.functions.phone.discardGroupCall(call: .inputGroupCall(id: callId, accessHash: accessHash)))
|> mapError { _ -> StopGroupCallError in
return .generic
}
|> mapToSignal { result -> Signal<Never, StopGroupCallError> in
return account.postbox.transaction { transaction -> Void in
transaction.updatePeerCachedData(peerIds: Set([peerId]), update: { _, cachedData -> CachedPeerData? in
if let cachedData = cachedData as? CachedChannelData {
return cachedData.withUpdatedActiveCall(nil)
} else {
return cachedData
}
})
account.stateManager.addUpdates(result)
}
|> castError(StopGroupCallError.self)
|> ignoreValues
}
}
public enum CheckGroupCallResult {
case success
case restart
}
public func checkGroupCall(account: Account, callId: Int64, accessHash: Int64, ssrc: Int32) -> Signal<CheckGroupCallResult, NoError> {
return account.network.request(Api.functions.phone.checkGroupCall(call: .inputGroupCall(id: callId, accessHash: accessHash), source: ssrc))
|> `catch` { _ -> Signal<Api.Bool, NoError> in
return .single(.boolFalse)
}
|> map { result -> CheckGroupCallResult in
switch result {
case .boolTrue:
return .success
case .boolFalse:
return .restart
}
}
}
private func binaryInsertionIndex(_ inputArr: [GroupCallParticipantsContext.Participant], searchItem: Int32) -> Int {
var lo = 0
var hi = inputArr.count - 1
while lo <= hi {
let mid = (lo + hi) / 2
if inputArr[mid].joinTimestamp < searchItem {
lo = mid + 1
} else if searchItem < inputArr[mid].joinTimestamp {
hi = mid - 1
} else {
return mid
}
}
return lo
}
public final class GroupCallParticipantsContext {
public struct Participant: Equatable {
public struct MuteState: Equatable {
public var canUnmute: Bool
public init(canUnmute: Bool) {
self.canUnmute = canUnmute
}
}
public var peer: Peer
public var ssrc: UInt32
public var joinTimestamp: Int32
public var activityTimestamp: Int32?
public var muteState: MuteState?
public static func ==(lhs: Participant, rhs: Participant) -> Bool {
if !lhs.peer.isEqual(rhs.peer) {
return false
}
if lhs.ssrc != rhs.ssrc {
return false
}
if lhs.joinTimestamp != rhs.joinTimestamp {
return false
}
if lhs.activityTimestamp != rhs.activityTimestamp {
return false
}
if lhs.muteState != rhs.muteState {
return false
}
return true
}
}
public struct State: Equatable {
public var participants: [Participant]
public var nextParticipantsFetchOffset: String?
public var adminIds: Set<PeerId>
public var isCreator: Bool
public var totalCount: Int
public var version: Int32
}
private struct OverlayState: Equatable {
struct MuteStateChange: Equatable {
var state: Participant.MuteState?
var disposable: Disposable
static func ==(lhs: MuteStateChange, rhs: MuteStateChange) -> Bool {
if lhs.state != rhs.state {
return false
}
if lhs.disposable !== rhs.disposable {
return false
}
return true
}
}
var pendingMuteStateChanges: [PeerId: MuteStateChange] = [:]
var isEmpty: Bool {
if !self.pendingMuteStateChanges.isEmpty {
return false
}
return true
}
}
private struct InternalState: Equatable {
var state: State
var overlayState: OverlayState
}
public struct StateUpdate {
public struct ParticipantUpdate {
public var peerId: PeerId
public var ssrc: UInt32
public var joinTimestamp: Int32
public var activityTimestamp: Int32?
public var muteState: Participant.MuteState?
public var isRemoved: Bool
}
public var participantUpdates: [ParticipantUpdate]
public var version: Int32
public var removePendingMuteStates: Set<PeerId>
}
private let account: Account
private let id: Int64
private let accessHash: Int64
private var stateValue: InternalState {
didSet {
self.statePromise.set(self.stateValue)
}
}
private let statePromise: ValuePromise<InternalState>
public var state: Signal<State, NoError> {
return self.statePromise.get()
|> map { state -> State in
if state.overlayState.isEmpty {
return state.state
}
var publicState = state.state
for i in 0 ..< publicState.participants.count {
if let pendingMuteState = state.overlayState.pendingMuteStateChanges[publicState.participants[i].peer.id] {
publicState.participants[i].muteState = pendingMuteState.state
}
}
return publicState
}
}
private var updateQueue: [StateUpdate] = []
private var isProcessingUpdate: Bool = false
private let disposable = MetaDisposable()
public init(account: Account, id: Int64, accessHash: Int64, state: State) {
self.account = account
self.id = id
self.accessHash = accessHash
self.stateValue = InternalState(state: state, overlayState: OverlayState())
self.statePromise = ValuePromise<InternalState>(self.stateValue)
}
deinit {
self.disposable.dispose()
}
public func addUpdates(updates: [StateUpdate]) {
self.updateQueue.append(contentsOf: updates)
self.beginProcessingUpdatesIfNeeded()
}
private func beginProcessingUpdatesIfNeeded() {
if self.isProcessingUpdate {
return
}
if self.updateQueue.isEmpty {
return
}
self.isProcessingUpdate = true
let update = self.updateQueue.removeFirst()
self.processUpdate(update: update)
}
private func endedProcessingUpdate() {
assert(self.isProcessingUpdate)
self.isProcessingUpdate = false
self.beginProcessingUpdatesIfNeeded()
}
private func processUpdate(update: StateUpdate) {
if update.version < self.stateValue.state.version {
for peerId in update.removePendingMuteStates {
self.stateValue.overlayState.pendingMuteStateChanges.removeValue(forKey: peerId)
}
self.endedProcessingUpdate()
return
}
if update.version > self.stateValue.state.version + 1 {
for peerId in update.removePendingMuteStates {
self.stateValue.overlayState.pendingMuteStateChanges.removeValue(forKey: peerId)
}
self.resetStateFromServer()
return
}
let _ = (self.account.postbox.transaction { transaction -> [PeerId: Peer] in
var peers: [PeerId: Peer] = [:]
for participantUpdate in update.participantUpdates {
if let peer = transaction.getPeer(participantUpdate.peerId) {
peers[peer.id] = peer
}
}
return peers
}
|> deliverOnMainQueue).start(next: { [weak self] peers in
guard let strongSelf = self else {
return
}
var updatedParticipants = Array(strongSelf.stateValue.state.participants.reversed())
var updatedTotalCount = strongSelf.stateValue.state.totalCount
for participantUpdate in update.participantUpdates {
if participantUpdate.isRemoved {
if let index = updatedParticipants.firstIndex(where: { $0.peer.id == participantUpdate.peerId }) {
updatedParticipants.remove(at: index)
updatedTotalCount -= 1
}
} else {
guard let peer = peers[participantUpdate.peerId] else {
assertionFailure()
continue
}
if let index = updatedParticipants.firstIndex(where: { $0.peer.id == participantUpdate.peerId }) {
updatedParticipants.remove(at: index)
} else {
updatedTotalCount += 1
}
let participant = Participant(
peer: peer,
ssrc: participantUpdate.ssrc,
joinTimestamp: participantUpdate.joinTimestamp,
muteState: participantUpdate.muteState
)
let index = binaryInsertionIndex(updatedParticipants, searchItem: participant.joinTimestamp)
updatedParticipants.insert(participant, at: index)
}
}
var updatedOverlayState = strongSelf.stateValue.overlayState
for peerId in update.removePendingMuteStates {
updatedOverlayState.pendingMuteStateChanges.removeValue(forKey: peerId)
}
let nextParticipantsFetchOffset = strongSelf.stateValue.state.nextParticipantsFetchOffset
let adminIds = strongSelf.stateValue.state.adminIds
let isCreator = strongSelf.stateValue.state.isCreator
strongSelf.stateValue = InternalState(
state: State(
participants: Array(updatedParticipants.reversed()),
nextParticipantsFetchOffset: nextParticipantsFetchOffset,
adminIds: adminIds,
isCreator: isCreator,
totalCount: updatedTotalCount,
version: update.version
),
overlayState: updatedOverlayState
)
strongSelf.endedProcessingUpdate()
})
}
private func resetStateFromServer() {
self.updateQueue.removeAll()
self.disposable.set((getGroupCallParticipants(account: self.account, callId: self.id, accessHash: self.accessHash, offset: "", limit: 100)
|> deliverOnMainQueue).start(next: { [weak self] state in
guard let strongSelf = self else {
return
}
strongSelf.stateValue.state = state
strongSelf.endedProcessingUpdate()
}))
}
public func updateMuteState(peerId: PeerId, muteState: Participant.MuteState?) {
if let current = self.stateValue.overlayState.pendingMuteStateChanges[peerId] {
if current.state == muteState {
return
}
current.disposable.dispose()
self.stateValue.overlayState.pendingMuteStateChanges.removeValue(forKey: peerId)
}
let disposable = MetaDisposable()
self.stateValue.overlayState.pendingMuteStateChanges[peerId] = OverlayState.MuteStateChange(
state: muteState,
disposable: disposable
)
let account = self.account
let id = self.id
let accessHash = self.accessHash
let signal: Signal<Api.Updates?, NoError> = self.account.postbox.transaction { transaction -> Api.InputUser? in
return transaction.getPeer(peerId).flatMap(apiInputUser)
}
|> mapToSignal { inputUser -> Signal<Api.Updates?, NoError> in
guard let inputUser = inputUser else {
return .single(nil)
}
var flags: Int32 = 0
if let muteState = muteState, !muteState.canUnmute {
flags |= 1 << 0
}
return account.network.request(Api.functions.phone.editGroupCallMember(flags: flags, call: .inputGroupCall(id: id, accessHash: accessHash), userId: inputUser))
|> map(Optional.init)
|> `catch` { _ -> Signal<Api.Updates?, NoError> in
return .single(nil)
}
}
disposable.set((signal
|> deliverOnMainQueue).start(next: { [weak self] updates in
guard let strongSelf = self else {
return
}
if let updates = updates {
var stateUpdates: [GroupCallParticipantsContext.StateUpdate] = []
loop: for update in updates.allUpdates {
switch update {
case let .updateGroupCallParticipants(call, participants, version):
switch call {
case let .inputGroupCall(updateCallId, _):
if updateCallId != id {
continue loop
}
}
stateUpdates.append(GroupCallParticipantsContext.StateUpdate(participants: participants, version: version, removePendingMuteStates: [peerId]))
default:
break
}
}
strongSelf.addUpdates(updates: stateUpdates)
strongSelf.account.stateManager.addUpdates(updates)
} else {
strongSelf.stateValue.overlayState.pendingMuteStateChanges.removeValue(forKey: peerId)
}
}))
}
}
extension GroupCallParticipantsContext.StateUpdate {
init(participants: [Api.GroupCallParticipant], version: Int32, removePendingMuteStates: Set<PeerId> = Set()) {
var participantUpdates: [GroupCallParticipantsContext.StateUpdate.ParticipantUpdate] = []
for participant in participants {
switch participant {
case let .groupCallParticipant(flags, userId, date, activeDate, source):
let peerId = PeerId(namespace: Namespaces.Peer.CloudUser, id: userId)
let ssrc = UInt32(bitPattern: source)
var muteState: GroupCallParticipantsContext.Participant.MuteState?
if (flags & (1 << 0)) != 0 {
let canUnmute = (flags & (1 << 2)) != 0
muteState = GroupCallParticipantsContext.Participant.MuteState(canUnmute: canUnmute)
}
let isRemoved = (flags & (1 << 1)) != 0
participantUpdates.append(GroupCallParticipantsContext.StateUpdate.ParticipantUpdate(
peerId: peerId,
ssrc: ssrc,
joinTimestamp: date,
activityTimestamp: activeDate,
muteState: muteState,
isRemoved: isRemoved
))
}
}
self.init(
participantUpdates: participantUpdates,
version: version,
removePendingMuteStates: removePendingMuteStates
)
}
}
public enum InviteToGroupCallError {
case generic
}
public func inviteToGroupCall(account: Account, callId: Int64, accessHash: Int64, peerId: PeerId) -> Signal<Never, InviteToGroupCallError> {
return account.postbox.transaction { transaction -> Peer? in
return transaction.getPeer(peerId)
}
|> castError(InviteToGroupCallError.self)
|> mapToSignal { user -> Signal<Never, InviteToGroupCallError> in
guard let user = user else {
return .fail(.generic)
}
guard let apiUser = apiInputUser(user) else {
return .fail(.generic)
}
return account.network.request(Api.functions.phone.inviteToGroupCall(call: .inputGroupCall(id: callId, accessHash: accessHash), userId: apiUser))
|> mapError { _ -> InviteToGroupCallError in
return .generic
}
|> mapToSignal { result -> Signal<Never, InviteToGroupCallError> in
account.stateManager.addUpdates(result)
return .complete()
}
}
}