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DatabaseView.swift
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DatabaseView.swift
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//
// DatabaseView.swift
// SimpleX (iOS)
//
// Created by Evgeny on 19/06/2022.
// Copyright 漏 2022 SimpleX Chat. All rights reserved.
//
import SwiftUI
import SimpleXChat
enum DatabaseAlert: Identifiable {
case stopChat
case exportProhibited
case importArchive
case archiveImported
case deleteChat
case chatDeleted
case deleteLegacyDatabase
case deleteFilesAndMedia
case setChatItemTTL(ttl: ChatItemTTL)
case error(title: LocalizedStringKey, error: String = "")
var id: String {
switch self {
case .stopChat: return "stopChat"
case .exportProhibited: return "exportProhibited"
case .importArchive: return "importArchive"
case .archiveImported: return "archiveImported"
case .deleteChat: return "deleteChat"
case .chatDeleted: return "chatDeleted"
case .deleteLegacyDatabase: return "deleteLegacyDatabase"
case .deleteFilesAndMedia: return "deleteFilesAndMedia"
case .setChatItemTTL: return "setChatItemTTL"
case let .error(title, _): return "error \(title)"
}
}
}
struct DatabaseView: View {
@EnvironmentObject var m: ChatModel
@Binding var showSettings: Bool
@State private var runChat = false
@State private var alert: DatabaseAlert? = nil
@State private var showFileImporter = false
@State private var importedArchivePath: URL?
@State private var progressIndicator = false
@AppStorage(DEFAULT_CHAT_ARCHIVE_NAME) private var chatArchiveName: String?
@AppStorage(DEFAULT_CHAT_ARCHIVE_TIME) private var chatArchiveTime: Double = 0
@State private var dbContainer = dbContainerGroupDefault.get()
@State private var legacyDatabase = hasLegacyDatabase()
@State private var useKeychain = storeDBPassphraseGroupDefault.get()
@State private var appFilesCountAndSize: (Int, Int)?
@State var chatItemTTL: ChatItemTTL
@State private var currentChatItemTTL: ChatItemTTL = .none
var body: some View {
ZStack {
chatDatabaseView()
if progressIndicator {
ProgressView().scaleEffect(2)
}
}
}
private func chatDatabaseView() -> some View {
List {
let stopped = m.chatRunning == false
Section {
Picker("Delete messages after", selection: $chatItemTTL) {
ForEach(ChatItemTTL.values) { ttl in
Text(ttl.deleteAfterText).tag(ttl)
}
if case .seconds = chatItemTTL {
Text(chatItemTTL.deleteAfterText).tag(chatItemTTL)
}
}
.frame(height: 36)
.disabled(stopped || progressIndicator)
} header: {
Text("Messages")
} footer: {
Text("This setting applies to messages in your current chat profile **\(m.currentUser?.displayName ?? "")**.")
}
Section {
settingsRow(
stopped ? "exclamationmark.octagon.fill" : "play.fill",
color: stopped ? .red : .green
) {
Toggle(
stopped ? "Chat is stopped" : "Chat is running",
isOn: $runChat
)
.onChange(of: runChat) { _ in
if (runChat) {
startChat()
} else {
alert = .stopChat
}
}
}
} header: {
Text("Run chat")
} footer: {
if case .documents = dbContainer {
Text("Database will be migrated when the app restarts")
}
}
Section {
let unencrypted = m.chatDbEncrypted == false
let color: Color = unencrypted ? .orange : .secondary
settingsRow(unencrypted ? "lock.open" : useKeychain ? "key" : "lock", color: color) {
NavigationLink {
DatabaseEncryptionView(useKeychain: $useKeychain)
.navigationTitle("Database passphrase")
} label: {
Text("Database passphrase")
}
}
settingsRow("square.and.arrow.up") {
Button("Export database") {
if initialRandomDBPassphraseGroupDefault.get() && !unencrypted {
alert = .exportProhibited
} else {
exportArchive()
}
}
}
settingsRow("square.and.arrow.down") {
Button("Import database", role: .destructive) {
showFileImporter = true
}
}
if let archiveName = chatArchiveName {
let title: LocalizedStringKey = chatArchiveTimeDefault.get() < chatLastStartGroupDefault.get()
? "Old database archive"
: "New database archive"
settingsRow("archivebox") {
NavigationLink {
ChatArchiveView(archiveName: archiveName)
.navigationTitle(title)
} label: {
Text(title)
}
}
}
settingsRow("trash.slash") {
Button("Delete database", role: .destructive) {
alert = .deleteChat
}
}
} header: {
Text("Chat database")
} footer: {
Text(
stopped
? "You must use the most recent version of your chat database on one device ONLY, otherwise you may stop receiving the messages from some contacts."
: "Stop chat to enable database actions"
)
}
.disabled(!stopped)
if case .group = dbContainer, legacyDatabase {
Section("Old database") {
settingsRow("trash") {
Button("Delete old database") {
alert = .deleteLegacyDatabase
}
}
}
}
Section {
Button(m.users.count > 1 ? "Delete files for all chat profiles" : "Delete all files", role: .destructive) {
alert = .deleteFilesAndMedia
}
.disabled(!stopped || appFilesCountAndSize?.0 == 0)
} header: {
Text("Files & media")
} footer: {
if let (fileCount, size) = appFilesCountAndSize {
if fileCount == 0 {
Text("No received or sent files")
} else {
Text("\(fileCount) file(s) with total size of \(ByteCountFormatter.string(fromByteCount: Int64(size), countStyle: .binary))")
}
}
}
}
.onAppear {
runChat = m.chatRunning ?? true
appFilesCountAndSize = directoryFileCountAndSize(getAppFilesDirectory())
currentChatItemTTL = chatItemTTL
}
.onChange(of: chatItemTTL) { ttl in
if ttl < currentChatItemTTL {
alert = .setChatItemTTL(ttl: ttl)
} else if ttl != currentChatItemTTL {
setCiTTL(ttl)
}
}
.alert(item: $alert) { item in databaseAlert(item) }
.fileImporter(
isPresented: $showFileImporter,
allowedContentTypes: [.zip],
allowsMultipleSelection: false
) { result in
if case let .success(files) = result, let fileURL = files.first {
importedArchivePath = fileURL
alert = .importArchive
}
}
}
private func databaseAlert(_ alertItem: DatabaseAlert) -> Alert {
switch alertItem {
case .stopChat:
return Alert(
title: Text("Stop chat?"),
message: Text("Stop chat to export, import or delete chat database. You will not be able to receive and send messages while the chat is stopped."),
primaryButton: .destructive(Text("Stop")) {
authStopChat()
},
secondaryButton: .cancel {
withAnimation { runChat = true }
}
)
case .exportProhibited:
return Alert(
title: Text("Set passphrase to export"),
message: Text("Database is encrypted using a random passphrase. Please change it before exporting.")
)
case .importArchive:
if let fileURL = importedArchivePath {
return Alert(
title: Text("Import chat database?"),
message: Text("Your current chat database will be DELETED and REPLACED with the imported one.") + Text("This action cannot be undone - your profile, contacts, messages and files will be irreversibly lost."),
primaryButton: .destructive(Text("Import")) {
importArchive(fileURL)
},
secondaryButton: .cancel()
)
} else {
return Alert(title: Text("Error: no database file"))
}
case .archiveImported:
return Alert(
title: Text("Chat database imported"),
message: Text("Restart the app to use imported chat database")
)
case .deleteChat:
return Alert(
title: Text("Delete chat profile?"),
message: Text("This action cannot be undone - your profile, contacts, messages and files will be irreversibly lost."),
primaryButton: .destructive(Text("Delete")) {
deleteChat()
},
secondaryButton: .cancel()
)
case .chatDeleted:
return Alert(
title: Text("Chat database deleted"),
message: Text("Restart the app to create a new chat profile")
)
case .deleteLegacyDatabase:
return Alert(
title: Text("Delete old database?"),
message: Text("The old database was not removed during the migration, it can be deleted."),
primaryButton: .destructive(Text("Delete")) {
deleteLegacyDatabase()
},
secondaryButton: .cancel()
)
case .deleteFilesAndMedia:
return Alert(
title: Text("Delete files and media?"),
message: Text("This action cannot be undone - all received and sent files and media will be deleted. Low resolution pictures will remain."),
primaryButton: .destructive(Text("Delete")) {
deleteFiles()
},
secondaryButton: .cancel()
)
case let .setChatItemTTL(ttl):
return Alert(
title: Text("Enable automatic message deletion?"),
message: Text("This action cannot be undone - the messages sent and received earlier than selected will be deleted. It may take several minutes."),
primaryButton: .destructive(Text("Delete messages")) {
setCiTTL(ttl)
},
secondaryButton: .cancel() {
chatItemTTL = currentChatItemTTL
}
)
case let .error(title, error):
return Alert(title: Text(title), message: Text(error))
}
}
private func authStopChat() {
if UserDefaults.standard.bool(forKey: DEFAULT_PERFORM_LA) {
authenticate(reason: NSLocalizedString("Stop SimpleX", comment: "authentication reason")) { laResult in
switch laResult {
case .success: stopChat()
case .unavailable: stopChat()
case .failed: withAnimation { runChat = true }
}
}
} else {
stopChat()
}
}
private func stopChat() {
Task {
do {
try await stopChatAsync()
} catch let error {
await MainActor.run {
runChat = true
alert = .error(title: "Error stopping chat", error: responseError(error))
}
}
}
}
private func exportArchive() {
progressIndicator = true
Task {
do {
let archivePath = try await exportChatArchive()
showShareSheet(items: [archivePath])
await MainActor.run { progressIndicator = false }
} catch let error {
await MainActor.run {
alert = .error(title: "Error exporting chat database", error: responseError(error))
progressIndicator = false
}
}
}
}
private func importArchive(_ archivePath: URL) {
if archivePath.startAccessingSecurityScopedResource() {
progressIndicator = true
Task {
do {
try await apiDeleteStorage()
do {
let config = ArchiveConfig(archivePath: archivePath.path)
try await apiImportArchive(config: config)
_ = kcDatabasePassword.remove()
await operationEnded(.archiveImported)
} catch let error {
await operationEnded(.error(title: "Error importing chat database", error: responseError(error)))
}
} catch let error {
await operationEnded(.error(title: "Error deleting chat database", error: responseError(error)))
}
archivePath.stopAccessingSecurityScopedResource()
}
} else {
alert = .error(title: "Error accessing database file")
}
}
private func deleteChat() {
progressIndicator = true
Task {
do {
try await deleteChatAsync()
await operationEnded(.chatDeleted)
appFilesCountAndSize = directoryFileCountAndSize(getAppFilesDirectory())
} catch let error {
await operationEnded(.error(title: "Error deleting database", error: responseError(error)))
}
}
}
private func deleteLegacyDatabase() {
if removeLegacyDatabaseAndFiles() {
legacyDatabase = false
} else {
alert = .error(title: "Error deleting old database")
}
}
private func operationEnded(_ dbAlert: DatabaseAlert) async {
await MainActor.run {
m.chatDbChanged = true
m.chatInitialized = false
progressIndicator = false
alert = dbAlert
}
}
private func startChat() {
if m.chatDbChanged {
showSettings = false
DispatchQueue.main.asyncAfter(deadline: .now() + 1) {
resetChatCtrl()
do {
try initializeChat(start: true)
m.chatDbChanged = false
appStateGroupDefault.set(.active)
} catch let error {
fatalError("Error starting chat \(responseError(error))")
}
}
} else {
do {
_ = try apiStartChat()
runChat = true
m.chatRunning = true
ChatReceiver.shared.start()
chatLastStartGroupDefault.set(Date.now)
appStateGroupDefault.set(.active)
} catch let error {
runChat = false
alert = .error(title: "Error starting chat", error: responseError(error))
}
}
}
private func setCiTTL(_ ttl: ChatItemTTL) {
logger.debug("DatabaseView setChatItemTTL \(ttl.seconds ?? -1)")
progressIndicator = true
Task {
do {
try await setChatItemTTL(ttl)
await MainActor.run {
m.chatItemTTL = ttl
currentChatItemTTL = ttl
afterSetCiTTL()
}
} catch {
await MainActor.run {
alert = .error(title: "Error changing setting", error: responseError(error))
chatItemTTL = currentChatItemTTL
afterSetCiTTL()
}
}
}
}
private func afterSetCiTTL() {
progressIndicator = false
appFilesCountAndSize = directoryFileCountAndSize(getAppFilesDirectory())
do {
let chats = try apiGetChats()
m.updateChats(with: chats)
} catch let error {
logger.error("apiGetChats: cannot update chats \(responseError(error))")
}
}
private func deleteFiles() {
deleteAppFiles()
appFilesCountAndSize = directoryFileCountAndSize(getAppFilesDirectory())
}
}
func stopChatAsync() async throws {
try await apiStopChat()
ChatReceiver.shared.stop()
await MainActor.run { ChatModel.shared.chatRunning = false }
appStateGroupDefault.set(.stopped)
}
func deleteChatAsync() async throws {
try await apiDeleteStorage()
_ = kcDatabasePassword.remove()
storeDBPassphraseGroupDefault.set(true)
}
struct DatabaseView_Previews: PreviewProvider {
static var previews: some View {
DatabaseView(showSettings: Binding.constant(false), chatItemTTL: .none)
}
}