751 lines
21 KiB
Swift
751 lines
21 KiB
Swift
//
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// CloudKitAppDelegate.swift
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// Account
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//
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// Created by Maurice Parker on 3/18/20.
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// Copyright © 2020 Ranchero Software, LLC. All rights reserved.
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//
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import Foundation
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import CloudKit
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import SystemConfiguration
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import os.log
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import SyncDatabase
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import Parser
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import Articles
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import ArticlesDatabase
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import Web
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import Secrets
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import Core
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import CloudKitExtras
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import CommonErrors
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import FeedFinder
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import LocalAccount
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import CloudKitSync
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enum CloudKitAccountDelegateError: LocalizedError {
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case invalidParameter
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case unknown
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var errorDescription: String? {
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return NSLocalizedString("An unexpected CloudKit error occurred.", comment: "An unexpected CloudKit error occurred.")
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}
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}
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@MainActor final class CloudKitAccountDelegate: AccountDelegate {
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private var log = OSLog(subsystem: Bundle.main.bundleIdentifier!, category: "CloudKit")
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private let database: SyncDatabase
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private let container: CKContainer = {
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let orgID = Bundle.main.object(forInfoDictionaryKey: "OrganizationIdentifier") as! String
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return CKContainer(identifier: "iCloud.\(orgID).NetNewsWire")
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}()
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private let accountZone: CloudKitAccountZone
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private let articlesZone: CloudKitArticlesZone
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private let mainThreadOperationQueue = MainThreadOperationQueue()
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private lazy var refresher: LocalAccountRefresher = {
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let refresher = LocalAccountRefresher()
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refresher.delegate = self
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return refresher
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}()
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weak var account: Account?
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let behaviors: AccountBehaviors = []
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let isOPMLImportInProgress = false
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let server: String? = nil
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var credentials: Credentials?
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var accountMetadata: AccountMetadata?
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var refreshProgress = DownloadProgress(numberOfTasks: 0)
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init(dataFolder: String) {
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accountZone = CloudKitAccountZone(container: container)
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articlesZone = CloudKitArticlesZone(container: container)
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let databasePath = (dataFolder as NSString).appendingPathComponent("Sync.sqlite3")
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database = SyncDatabase(databasePath: databasePath)
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}
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func receiveRemoteNotification(for account: Account, userInfo: [AnyHashable : Any]) async {
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await withCheckedContinuation { continuation in
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self.receiveRemoteNotification(for: account, userInfo: userInfo) {
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continuation.resume()
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}
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}
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}
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private func receiveRemoteNotification(for account: Account, userInfo: [AnyHashable : Any], completion: @escaping () -> Void) {
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let op = CloudKitRemoteNotificationOperation(accountZone: accountZone, articlesZone: articlesZone, userInfo: userInfo)
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op.completionBlock = { mainThreadOperaion in
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completion()
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}
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Task { @MainActor in
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mainThreadOperationQueue.add(op)
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}
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}
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func refreshAll(for account: Account) async throws {
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guard refreshProgress.isComplete, Reachability.internetIsReachable else {
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return
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}
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try await standardRefreshAll(for: account)
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}
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func syncArticleStatus(for account: Account) async throws {
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try await withCheckedThrowingContinuation { continuation in
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sendArticleStatus(for: account) { result in
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switch result {
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case .success:
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self.refreshArticleStatus(for: account) { result in
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switch result {
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case .success:
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continuation.resume()
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case .failure(let error):
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continuation.resume(throwing: error)
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}
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}
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case .failure(let error):
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continuation.resume(throwing: error)
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}
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}
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}
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}
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func sendArticleStatus(for account: Account) async throws {
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try await withCheckedThrowingContinuation { continuation in
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self.sendArticleStatus(for: account) { result in
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switch result {
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case .success:
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continuation.resume()
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case .failure(let error):
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continuation.resume(throwing: error)
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}
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}
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}
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}
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private func sendArticleStatus(for account: Account, completion: @escaping ((Result<Void, Error>) -> Void)) {
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sendArticleStatus(for: account, showProgress: false, completion: completion)
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}
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func refreshArticleStatus(for account: Account) async throws {
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try await withCheckedThrowingContinuation { continuation in
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self.refreshArticleStatus(for: account) { result in
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switch result {
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case .success:
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continuation.resume()
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case .failure(let error):
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continuation.resume(throwing: error)
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}
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}
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}
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}
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private func refreshArticleStatus(for account: Account, completion: @escaping ((Result<Void, Error>) -> Void)) {
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let op = CloudKitReceiveStatusOperation(articlesZone: articlesZone)
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op.completionBlock = { mainThreadOperation in
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Task { @MainActor in
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if mainThreadOperation.isCanceled {
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completion(.failure(CloudKitAccountDelegateError.unknown))
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} else {
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completion(.success(()))
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}
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}
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}
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Task { @MainActor in
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mainThreadOperationQueue.add(op)
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}
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}
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func importOPML(for account: Account, opmlFile: URL) async throws {
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guard refreshProgress.isComplete else {
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return
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}
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let opmlData = try Data(contentsOf: opmlFile)
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let parserData = ParserData(url: opmlFile.absoluteString, data: opmlData)
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let opmlDocument = try RSOPMLParser.parseOPML(with: parserData)
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guard let opmlItems = opmlDocument.children, let rootExternalID = account.externalID else {
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return
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}
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let normalizedItems = OPMLNormalizer.normalize(opmlItems)
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refreshProgress.addToNumberOfTasksAndRemaining(1)
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defer { refreshProgress.completeTask() }
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try await accountZone.importOPML(rootExternalID: rootExternalID, items: normalizedItems)
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try await standardRefreshAll(for: account)
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}
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@discardableResult
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func createFeed(for account: Account, url urlString: String, name: String?, container: Container, validateFeed: Bool) async throws -> Feed {
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guard let url = URL(string: urlString) else {
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throw LocalAccountDelegateError.invalidParameter
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}
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let editedName = name == nil || name!.isEmpty ? nil : name
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return try await createRSSFeed(for: account, url: url, editedName: editedName, container: container, validateFeed: validateFeed)
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}
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func renameFeed(for account: Account, with feed: Feed, to name: String) async throws {
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guard let feedExternalID = feed.externalID else {
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throw LocalAccountDelegateError.invalidParameter
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}
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refreshProgress.addTask()
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defer { refreshProgress.completeTask() }
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let editedName = name.isEmpty ? nil : name
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do {
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try await accountZone.renameFeed(externalID: feedExternalID, editedName: editedName)
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feed.editedName = name
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} catch {
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processAccountError(account, error)
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throw error
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}
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}
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func removeFeed(for account: Account, with feed: Feed, from container: Container) async throws {
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do {
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try await removeFeedFromCloud(for: account, with: feed, from: container)
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account.clearFeedMetadata(feed)
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container.removeFeed(feed)
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} catch {
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switch error {
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case CloudKitZoneError.corruptAccount:
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// We got into a bad state and should remove the feed to clear up the bad data
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account.clearFeedMetadata(feed)
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container.removeFeed(feed)
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default:
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throw error
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}
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}
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}
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func moveFeed(for account: Account, with feed: Feed, from sourceContainer: Container, to destinationContainer: Container) async throws {
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guard let feedExternalID = feed.externalID, let sourceContainerExternalID = sourceContainer.externalID, let destinationContainerExternalID = destinationContainer.externalID else {
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throw LocalAccountDelegateError.invalidParameter
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}
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refreshProgress.addToNumberOfTasksAndRemaining(1)
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defer { refreshProgress.completeTask() }
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do {
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try await accountZone.moveFeed(externalID: feedExternalID, from: sourceContainerExternalID, to: destinationContainerExternalID)
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sourceContainer.removeFeed(feed)
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destinationContainer.addFeed(feed)
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} catch {
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processAccountError(account, error)
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throw error
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}
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}
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func addFeed(for account: Account, with feed: Feed, to container: any Container) async throws {
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guard let feedExternalID = feed.externalID, let containerExternalID = container.externalID else {
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throw LocalAccountDelegateError.invalidParameter
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}
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refreshProgress.addToNumberOfTasksAndRemaining(1)
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defer { refreshProgress.completeTask() }
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do {
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try await accountZone.addFeed(externalID: feedExternalID, to: containerExternalID)
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container.addFeed(feed)
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} catch {
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processAccountError(account, error)
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throw error
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}
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}
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func restoreFeed(for account: Account, feed: Feed, container: any Container) async throws {
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try await createFeed(for: account, url: feed.url, name: feed.editedName, container: container, validateFeed: true)
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}
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func createFolder(for account: Account, name: String) async throws -> Folder {
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refreshProgress.addToNumberOfTasksAndRemaining(1)
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defer { refreshProgress.completeTask() }
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var externalID: String!
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do {
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externalID = try await accountZone.createFolder(name: name)
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} catch {
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processAccountError(account, error)
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throw error
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}
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if let folder = account.ensureFolder(with: name) {
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folder.externalID = externalID
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return folder
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} else {
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throw CloudKitAccountDelegateError.invalidParameter
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}
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}
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func renameFolder(for account: Account, with folder: Folder, to name: String) async throws {
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guard let folderExternalID = folder.externalID else {
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throw CloudKitAccountDelegateError.invalidParameter
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}
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refreshProgress.addToNumberOfTasksAndRemaining(1)
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defer { refreshProgress.completeTask() }
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do {
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try await accountZone.renameFolder(externalID: folderExternalID, to: name)
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folder.name = name
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} catch {
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processAccountError(account, error)
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throw error
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}
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}
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func removeFolder(for account: Account, with folder: Folder) async throws {
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guard let folderExternalID = folder.externalID else {
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throw CloudKitAccountDelegateError.invalidParameter
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}
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refreshProgress.addToNumberOfTasksAndRemaining(1)
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defer { refreshProgress.completeTask() }
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do {
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let feedExternalIDs = try await accountZone.findFeedExternalIDs(for: folderExternalID)
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let feeds = feedExternalIDs.compactMap { account.existingFeed(withExternalID: $0) }
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var errorOccurred = false
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refreshProgress.addToNumberOfTasksAndRemaining(feeds.count)
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for feed in feeds {
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do {
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try await removeFeedFromCloud(for: account, with: feed, from: folder)
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} catch {
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os_log(.error, log: self.log, "Remove folder, remove feed error: %@.", error.localizedDescription)
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errorOccurred = true
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}
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refreshProgress.completeTask()
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}
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if errorOccurred {
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throw CloudKitAccountDelegateError.unknown
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}
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try await accountZone.removeFolder(externalID: folderExternalID)
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account.removeFolder(folder: folder)
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} catch {
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processAccountError(account, error)
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throw error
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}
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}
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func restoreFolder(for account: Account, folder: Folder) async throws {
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guard let name = folder.name else {
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throw CloudKitAccountDelegateError.invalidParameter
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}
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let feedsToRestore = folder.topLevelFeeds
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refreshProgress.addToNumberOfTasksAndRemaining(1 + feedsToRestore.count)
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do {
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let externalID = try await accountZone.createFolder(name: name)
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folder.externalID = externalID
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account.addFolder(folder)
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for feed in feedsToRestore {
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folder.topLevelFeeds.remove(feed)
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do {
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try await self.restoreFeed(for: account, feed: feed, container: folder)
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} catch {
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os_log(.error, log: self.log, "Restore folder feed error: %@.", error.localizedDescription)
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}
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refreshProgress.completeTask()
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}
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account.addFolder(folder)
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refreshProgress.completeTask()
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} catch {
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processAccountError(account, error)
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throw error
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}
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}
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func markArticles(for account: Account, articles: Set<Article>, statusKey: ArticleStatus.Key, flag: Bool) async throws {
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let articles = try await account.update(articles: articles, statusKey: statusKey, flag: flag)
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let syncStatuses = articles.map { article in
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SyncStatus(articleID: article.articleID, key: SyncStatus.Key(statusKey), flag: flag)
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}
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try? await database.insertStatuses(syncStatuses)
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if let count = try? await self.database.selectPendingCount(), count > 100 {
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try await sendArticleStatus(for: account, showProgress: false)
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}
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}
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func accountDidInitialize(_ account: Account) {
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self.account = account
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accountZone.delegate = CloudKitAcountZoneDelegate(account: account, refreshProgress: refreshProgress, articlesZone: articlesZone)
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articlesZone.delegate = CloudKitArticlesZoneDelegate(account: account, database: database, articlesZone: articlesZone)
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Task {
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try await database.resetAllSelectedForProcessing()
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}
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// Check to see if this is a new account and initialize anything we need
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if account.externalID == nil {
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Task {
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do {
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let externalID = try await accountZone.findOrCreateAccount()
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account.externalID = externalID
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try await self.initialRefreshAll(for: account)
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} catch {
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os_log(.error, log: self.log, "Error adding account container: %@", error.localizedDescription)
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}
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accountZone.subscribeToZoneChanges()
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articlesZone.subscribeToZoneChanges()
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}
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}
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}
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func accountWillBeDeleted(_ account: Account) {
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accountZone.resetChangeToken()
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articlesZone.resetChangeToken()
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}
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static func validateCredentials(transport: Transport, credentials: Credentials, endpoint: URL?, secretsProvider: SecretsProvider) async throws -> Credentials? {
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return nil
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}
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// MARK: Suspend and Resume (for iOS)
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func suspendNetwork() {
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refresher.suspend()
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}
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func suspendDatabase() {
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Task {
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await database.suspend()
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}
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}
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func resume() {
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refresher.resume()
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Task {
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await database.resume()
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}
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}
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}
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private extension CloudKitAccountDelegate {
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func initialRefreshAll(for account: Account) async throws {
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refreshProgress.addTask()
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defer { refreshProgress.completeTask() }
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do {
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try await accountZone.fetchChangesInZone()
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let feeds = account.flattenedFeeds()
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refreshProgress.addToNumberOfTasksAndRemaining(feeds.count)
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try await refreshArticleStatus(for: account)
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try await combinedRefresh(account, feeds)
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account.metadata.lastArticleFetchEndTime = Date()
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} catch {
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processAccountError(account, error)
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refreshProgress.clear()
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throw error
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}
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}
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func standardRefreshAll(for account: Account) async throws {
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let intialFeedsCount = account.flattenedFeeds().count
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refreshProgress.addToNumberOfTasksAndRemaining(3 + intialFeedsCount)
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do {
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try await accountZone.fetchChangesInZone()
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refreshProgress.completeTask()
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let feeds = account.flattenedFeeds()
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refreshProgress.addToNumberOfTasksAndRemaining(feeds.count - intialFeedsCount)
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try await refreshArticleStatus(for: account)
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refreshProgress.completeTask()
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try await combinedRefresh(account, feeds)
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try await sendArticleStatus(for: account, showProgress: true)
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account.metadata.lastArticleFetchEndTime = Date()
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refreshProgress.clear()
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} catch {
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refreshProgress.completeTask()
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processAccountError(account, error)
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refreshProgress.clear()
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throw error
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}
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}
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func combinedRefresh(_ account: Account, _ feeds: Set<Feed>) async throws {
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await refresher.refreshFeeds(feeds)
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}
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func createRSSFeed(for account: Account, url: URL, editedName: String?, container: Container, validateFeed: Bool) async throws -> Feed {
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guard let containerExternalID = container.externalID else {
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throw CloudKitAccountDelegateError.invalidParameter
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}
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func addDeadFeed() async throws -> Feed {
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let feed = account.createFeed(with: editedName,
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url: url.absoluteString,
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feedID: url.absoluteString,
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homePageURL: nil)
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container.addFeed(feed)
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do {
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let externalID = try await accountZone.createFeed(url: url.absoluteString,
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name: editedName,
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editedName: nil, homePageURL: nil,
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containerExternalID: containerExternalID)
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feed.externalID = externalID
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return feed
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} catch {
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container.removeFeed(feed)
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throw error
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}
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}
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refreshProgress.addTask()
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defer { refreshProgress.completeTask() }
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var feedSpecifiers: Set<FeedSpecifier>?
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do {
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feedSpecifiers = try await FeedFinder.find(url: url)
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} catch {
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if validateFeed {
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throw AccountError.createErrorNotFound
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} else {
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return try await addDeadFeed()
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}
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}
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guard let feedSpecifiers, let bestFeedSpecifier = FeedSpecifier.bestFeed(in: feedSpecifiers), let url = URL(string: bestFeedSpecifier.urlString) else {
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if validateFeed {
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throw AccountError.createErrorNotFound
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} else {
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return try await addDeadFeed()
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}
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}
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if account.hasFeed(withURL: bestFeedSpecifier.urlString) {
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throw AccountError.createErrorAlreadySubscribed
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}
|
|
|
|
let feed = account.createFeed(with: nil, url: url.absoluteString, feedID: url.absoluteString, homePageURL: nil)
|
|
feed.editedName = editedName
|
|
container.addFeed(feed)
|
|
|
|
guard let parsedFeed = await InitialFeedDownloader.download(url) else {
|
|
container.removeFeed(feed)
|
|
throw AccountError.createErrorNotFound
|
|
}
|
|
|
|
do {
|
|
try await account.update(feed: feed, with: parsedFeed)
|
|
|
|
let externalID = try await accountZone.createFeed(url: bestFeedSpecifier.urlString,
|
|
name: parsedFeed.title,
|
|
editedName: editedName,
|
|
homePageURL: parsedFeed.homePageURL,
|
|
containerExternalID: containerExternalID)
|
|
|
|
feed.externalID = externalID
|
|
sendNewArticlesToTheCloud(account, feed)
|
|
|
|
return feed
|
|
|
|
} catch {
|
|
container.removeFeed(feed)
|
|
throw error
|
|
}
|
|
}
|
|
|
|
func sendNewArticlesToTheCloud(_ account: Account, _ feed: Feed) {
|
|
|
|
Task { @MainActor in
|
|
|
|
do {
|
|
let articles = try await account.articles(for: .feed(feed))
|
|
|
|
await self.storeArticleChanges(new: articles, updated: Set<Article>(), deleted: Set<Article>())
|
|
self.refreshProgress.completeTask()
|
|
|
|
try await self.sendArticleStatus(for: account, showProgress: true)
|
|
try await self.articlesZone.fetchChangesInZone()
|
|
|
|
} catch {
|
|
os_log(.error, log: self.log, "CloudKit Feed send articles error: %@.", error.localizedDescription)
|
|
}
|
|
}
|
|
}
|
|
|
|
func processAccountError(_ account: Account, _ error: Error) {
|
|
if case CloudKitZoneError.userDeletedZone = error {
|
|
account.removeFeeds(account.topLevelFeeds)
|
|
for folder in account.folders ?? Set<Folder>() {
|
|
account.removeFolder(folder: folder)
|
|
}
|
|
}
|
|
}
|
|
|
|
func storeArticleChanges(new: Set<Article>?, updated: Set<Article>?, deleted: Set<Article>?) async {
|
|
|
|
// New records with a read status aren't really new, they just didn't have the read article stored
|
|
if let new {
|
|
let filteredNew = new.filter { $0.status.read == false }
|
|
await insertSyncStatuses(articles: filteredNew, statusKey: .new, flag: true)
|
|
}
|
|
|
|
await insertSyncStatuses(articles: updated, statusKey: .new, flag: false)
|
|
await insertSyncStatuses(articles: deleted, statusKey: .deleted, flag: true)
|
|
}
|
|
|
|
func insertSyncStatuses(articles: Set<Article>?, statusKey: SyncStatus.Key, flag: Bool) async {
|
|
|
|
guard let articles, !articles.isEmpty else {
|
|
return
|
|
}
|
|
|
|
let syncStatuses = articles.map { article in
|
|
return SyncStatus(articleID: article.articleID, key: statusKey, flag: flag)
|
|
}
|
|
|
|
try? await database.insertStatuses(syncStatuses)
|
|
}
|
|
|
|
func sendArticleStatus(for account: Account, showProgress: Bool) async throws {
|
|
|
|
try await withCheckedThrowingContinuation { continuation in
|
|
|
|
self.sendArticleStatus(for: account, showProgress: showProgress) { result in
|
|
switch result {
|
|
case .success:
|
|
continuation.resume()
|
|
case .failure(let error):
|
|
continuation.resume(throwing: error)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
private func sendArticleStatus(for account: Account, showProgress: Bool, completion: @escaping ((Result<Void, Error>) -> Void)) {
|
|
let op = CloudKitSendStatusOperation(account: account,
|
|
articlesZone: articlesZone,
|
|
refreshProgress: refreshProgress,
|
|
showProgress: showProgress,
|
|
database: database)
|
|
op.completionBlock = { mainThreadOperaion in
|
|
Task { @MainActor in
|
|
if mainThreadOperaion.isCanceled {
|
|
completion(.failure(CloudKitAccountDelegateError.unknown))
|
|
} else {
|
|
completion(.success(()))
|
|
}
|
|
}
|
|
}
|
|
Task { @MainActor in
|
|
mainThreadOperationQueue.add(op)
|
|
}
|
|
}
|
|
|
|
|
|
func removeFeedFromCloud(for account: Account, with feed: Feed, from container: Container) async throws {
|
|
|
|
guard let feedExternalID = feed.externalID, let containerExternalID = container.externalID else {
|
|
return
|
|
}
|
|
|
|
refreshProgress.addToNumberOfTasksAndRemaining(1)
|
|
defer { refreshProgress.completeTask() }
|
|
|
|
do {
|
|
try await accountZone.removeFeed(externalID: feedExternalID, from: containerExternalID)
|
|
|
|
try await articlesZone.deleteArticles(feedExternalID)
|
|
feed.dropConditionalGetInfo()
|
|
|
|
} catch {
|
|
self.processAccountError(account, error)
|
|
throw error
|
|
}
|
|
}
|
|
}
|
|
|
|
extension CloudKitAccountDelegate: LocalAccountRefresherDelegate {
|
|
|
|
func localAccountRefresher(_ refresher: LocalAccountRefresher, requestCompletedFor: Feed) {
|
|
|
|
refreshProgress.completeTask()
|
|
}
|
|
|
|
func localAccountRefresher(_ refresher: LocalAccountRefresher, articleChanges: ArticleChanges, completion: @escaping () -> Void) {
|
|
|
|
Task { @MainActor in
|
|
await storeArticleChanges(new: articleChanges.newArticles,
|
|
updated: articleChanges.updatedArticles,
|
|
deleted: articleChanges.deletedArticles)
|
|
}
|
|
}
|
|
}
|