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struct RequestReceived: Hashable, Equatable {
var request: Request?
var isHidden: Bool
var leader: String?
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@Dependency var database: Database
@Dependency var messenger: Messenger
@Dependency var groupManager: GroupChat
@Dependency var hudController: HUDController
@Dependency var reportingStatus: ReportingStatus
@KeyObject(.isShowingHiddenRequests, defaultValue: false) var isShowingHiddenRequests: Bool
var verifyingPublisher: AnyPublisher<Void, Never> {
verifyingSubject.eraseToAnyPublisher()
}
var itemsPublisher: AnyPublisher<NSDiffableDataSourceSnapshot<Section, RequestReceived>, Never> {
itemsSubject.eraseToAnyPublisher()
}
var groupConfirmationPublisher: AnyPublisher<Group, Never> {
groupConfirmationSubject.eraseToAnyPublisher()
}
var contactConfirmationPublisher: AnyPublisher<XXModels.Contact, Never> {
contactConfirmationSubject.eraseToAnyPublisher()
}
private var cancellables = Set<AnyCancellable>()
private let updateSubject = CurrentValueSubject<Void, Never>(())
private let verifyingSubject = PassthroughSubject<Void, Never>()
private let groupConfirmationSubject = PassthroughSubject<Group, Never>()
private let contactConfirmationSubject = PassthroughSubject<XXModels.Contact, Never>()
private let itemsSubject = CurrentValueSubject<NSDiffableDataSourceSnapshot<Section, RequestReceived>, Never>(.init())
var backgroundScheduler: AnySchedulerOf<DispatchQueue> = DispatchQueue.global().eraseToAnyScheduler()
init() {
let groupsQuery = Group.Query(
authStatus: [
.hidden,
.pending
],
isLeaderBlocked: reportingStatus.isEnabled() ? false : nil,
isLeaderBanned: reportingStatus.isEnabled() ? false : nil
)
let contactsQuery = Contact.Query(
authStatus: [
.friend,
.hidden,
.verified,
.verificationFailed,
.verificationInProgress
],
isBlocked: reportingStatus.isEnabled() ? false : nil,
isBanned: reportingStatus.isEnabled() ? false : nil
)
let groupStream = database
.fetchGroupsPublisher(groupsQuery)
.replaceError(with: [])
let contactsStream = database
.fetchContactsPublisher(contactsQuery)
.replaceError(with: [])
Publishers.CombineLatest3(
groupStream,
contactsStream,
updateSubject.eraseToAnyPublisher()
)
.subscribe(on: DispatchQueue.main)
.receive(on: DispatchQueue.global())
.map { [unowned self] data -> NSDiffableDataSourceSnapshot<Section, RequestReceived> in
var snapshot = NSDiffableDataSourceSnapshot<Section, RequestReceived>()
snapshot.appendSections([.appearing, .hidden])
let contactsFilteringFriends = data.1.filter { $0.authStatus != .friend }
let requests = data.0.map(Request.group) + contactsFilteringFriends.map(Request.contact)
let receivedRequests = requests.map { request -> RequestReceived in
switch request {
case let .group(group):
func leaderName() -> String {
if let leader = data.1.first(where: { $0.id == group.leaderId }) {
return (leader.nickname ?? leader.username) ?? "Leader is not a friend"
} else {
return "[Error retrieving leader]"
}
}
return RequestReceived(
request: request,
isHidden: group.authStatus == .hidden,
leader: leaderName()
)
case let .contact(contact):
return RequestReceived(
request: request,
isHidden: contact.authStatus == .hidden,
leader: nil
)
}
}
if self.isShowingHiddenRequests {
snapshot.appendItems(receivedRequests.filter(\.isHidden), toSection: .hidden)
}
guard receivedRequests.filter({ $0.isHidden == false }).count > 0 else {
snapshot.appendItems([RequestReceived(isHidden: false)], toSection: .appearing)
return snapshot
}
snapshot.appendItems(receivedRequests.filter { $0.isHidden == false }, toSection: .appearing)
return snapshot
}.sink(
receiveCompletion: { _ in },
receiveValue: { [unowned self] in itemsSubject.send($0) }
).store(in: &cancellables)
}
func didToggleHiddenRequestsSwitcher() {
isShowingHiddenRequests.toggle()
updateSubject.send()
}
func didTapStateButtonFor(request: Request) {
guard case var .contact(contact) = request else { return }
if request.status == .failedToVerify {
backgroundScheduler.schedule { [weak self] in
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do {
contact.authStatus = .verificationInProgress
try self.database.saveContact(contact)
print(">>> [messenger.verifyContact] will start")
if try self.messenger.verifyContact(XXClient.Contact.live(contact.marshaled!)) {
print(">>> [messenger.verifyContact] verified")
contact.authStatus = .verified
contact = try self.database.saveContact(contact)
} else {
print(">>> [messenger.verifyContact] is fake")
try self.database.deleteContact(contact)
}
} catch {
print(">>> [messenger.verifyContact] thrown an exception: \(error.localizedDescription)")
contact.authStatus = .verificationFailed
_ = try? self.database.saveContact(contact)
}
}
} else if request.status == .verifying {
verifyingSubject.send()
}
func didRequestHide(group: Group) {
if var group = try? database.fetchGroups(.init(id: [group.id])).first {
group.authStatus = .hidden
_ = try? database.saveGroup(group)
}
func didRequestAccept(group: Group) {
hudController.show()
backgroundScheduler.schedule { [weak self] in
do {
try self.groupManager.joinGroup(serializedGroupData: group.serialized)
var group = group
group.authStatus = .participating
try self.database.saveGroup(group)
self.hudController.dismiss()
self.groupConfirmationSubject.send(group)
} catch {
self.hudController.show(.init(error: error))
}
}
func fetchMembers(
_ group: Group,
_ completion: @escaping (Result<[DrawerTableCellModel], Error>) -> Void
) {
if let info = try? database.fetchGroupInfos(.init(groupId: group.id)).first {
database.fetchContactsPublisher(.init(id: Set(info.members.map(\.id))))
.sink { members in
let withUsername = members
.filter { $0.username != nil }
.map {
DrawerTableCellModel(
id: $0.id,
title: $0.nickname ?? $0.username!,
image: $0.photo,
isCreator: $0.id == group.leaderId,
isConnection: $0.authStatus == .friend
)
let withoutUsername = members
.filter { $0.username == nil }
.map {
DrawerTableCellModel(
id: $0.id,
title: "Fetching username...",
image: $0.photo,
isCreator: $0.id == group.leaderId,
isConnection: $0.authStatus == .friend
)
completion(.success(withUsername + withoutUsername))
}.store(in: &cancellables)
}
func didRequestHide(contact: XXModels.Contact) {
if var contact = try? database.fetchContacts(.init(id: [contact.id])).first {
contact.authStatus = .hidden
_ = try? database.saveContact(contact)
}
func didRequestAccept(contact: XXModels.Contact, nickname: String? = nil) {
hudController.show()
var contact = contact
contact.authStatus = .confirming
contact.nickname = nickname ?? contact.username
backgroundScheduler.schedule { [weak self] in
do {
try self.database.saveContact(contact)
let _ = try self.messenger.e2e.get()!.confirmReceivedRequest(partner: .live(contact.marshaled!))
contact.authStatus = .friend
try self.database.saveContact(contact)
self.hudController.dismiss()
self.contactConfirmationSubject.send(contact)
} catch {
contact.authStatus = .confirmationFailed
_ = try? self.database.saveContact(contact)
self.hudController.show(.init(error: error))
}
}
func groupChatWith(group: Group) -> GroupInfo {
guard let info = try? database.fetchGroupInfos(.init(groupId: group.id)).first else {
fatalError()