281 lines
9.3 KiB
Swift
281 lines
9.3 KiB
Swift
//
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// CloudKitAccountZone.swift
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// Account
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//
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// Created by Maurice Parker on 3/21/20.
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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 os.log
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import RSWeb
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import RSParser
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import CloudKit
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final class CloudKitAccountZone: CloudKitZone {
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static var zoneID: CKRecordZone.ID {
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return CKRecordZone.ID(zoneName: "Account", ownerName: CKCurrentUserDefaultName)
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}
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var log = OSLog(subsystem: Bundle.main.bundleIdentifier!, category: "CloudKit")
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weak var container: CKContainer?
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weak var database: CKDatabase?
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weak var refreshProgress: DownloadProgress?
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var delegate: CloudKitZoneDelegate?
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struct CloudKitWebFeed {
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static let recordType = "WebFeed"
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struct Fields {
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static let url = "url"
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static let editedName = "editedName"
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static let containerExternalIDs = "containerExternalIDs"
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}
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}
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struct CloudKitContainer {
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static let recordType = "Container"
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struct Fields {
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static let isAccount = "isAccount"
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static let name = "name"
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}
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}
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init(container: CKContainer) {
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self.container = container
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self.database = container.privateCloudDatabase
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}
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func importOPML(rootExternalID: String, items: [RSOPMLItem], completion: @escaping (Result<Void, Error>) -> Void) {
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var records = [CKRecord]()
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var feedRecords = [String: CKRecord]()
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func processFeed(feedSpecifier: RSOPMLFeedSpecifier, containerExternalID: String) {
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if let webFeedRecord = feedRecords[feedSpecifier.feedURL], var containerExternalIDs = webFeedRecord[CloudKitWebFeed.Fields.containerExternalIDs] as? [String] {
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containerExternalIDs.append(containerExternalID)
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webFeedRecord[CloudKitWebFeed.Fields.containerExternalIDs] = containerExternalIDs
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} else {
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let webFeedRecord = newWebFeedCKRecord(feedSpecifier: feedSpecifier, containerExternalID: containerExternalID)
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records.append(webFeedRecord)
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feedRecords[feedSpecifier.feedURL] = webFeedRecord
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}
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}
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for item in items {
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if let feedSpecifier = item.feedSpecifier {
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processFeed(feedSpecifier: feedSpecifier, containerExternalID: rootExternalID)
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} else {
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if let title = item.titleFromAttributes {
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let containerRecord = newContainerCKRecord(name: title)
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records.append(containerRecord)
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item.children?.forEach { itemChild in
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if let feedSpecifier = itemChild.feedSpecifier {
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processFeed(feedSpecifier: feedSpecifier, containerExternalID: containerRecord.externalID)
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}
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}
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}
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}
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}
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modify(recordsToSave: records, recordIDsToDelete: [], completion: completion)
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}
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/// Persist a web feed record to iCloud and return the external key
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func createWebFeed(url: String, editedName: String?, container: Container, completion: @escaping (Result<String, Error>) -> Void) {
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let record = CKRecord(recordType: CloudKitWebFeed.recordType, recordID: generateRecordID())
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record[CloudKitWebFeed.Fields.url] = url
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if let editedName = editedName {
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record[CloudKitWebFeed.Fields.editedName] = editedName
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}
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guard let containerExternalID = container.externalID else {
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completion(.failure(CloudKitZoneError.invalidParameter))
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return
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}
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record[CloudKitWebFeed.Fields.containerExternalIDs] = [containerExternalID]
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save(record) { result in
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switch result {
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case .success:
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completion(.success(record.externalID))
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case .failure(let error):
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completion(.failure(error))
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}
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}
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}
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/// Rename the given web feed
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func renameWebFeed(_ webFeed: WebFeed, editedName: String?, completion: @escaping (Result<Void, Error>) -> Void) {
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guard let externalID = webFeed.externalID else {
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completion(.failure(CloudKitZoneError.invalidParameter))
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return
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}
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let recordID = CKRecord.ID(recordName: externalID, zoneID: Self.zoneID)
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let record = CKRecord(recordType: CloudKitWebFeed.recordType, recordID: recordID)
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record[CloudKitWebFeed.Fields.editedName] = editedName
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save(record) { result in
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switch result {
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case .success:
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completion(.success(()))
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case .failure(let error):
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completion(.failure(error))
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}
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}
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}
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/// Deletes a web feed from iCloud
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func removeWebFeed(_ webFeed: WebFeed, from: Container, completion: @escaping (Result<Void, Error>) -> Void) {
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guard let fromContainerExternalID = from.externalID else {
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completion(.failure(CloudKitZoneError.invalidParameter))
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return
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}
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fetch(externalID: webFeed.externalID) { result in
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switch result {
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case .success(let record):
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if let containerExternalIDs = record[CloudKitWebFeed.Fields.containerExternalIDs] as? [String] {
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var containerExternalIDSet = Set(containerExternalIDs)
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containerExternalIDSet.remove(fromContainerExternalID)
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if containerExternalIDSet.isEmpty {
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self.delete(externalID: webFeed.externalID , completion: completion)
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} else {
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record[CloudKitWebFeed.Fields.containerExternalIDs] = Array(containerExternalIDSet)
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self.save(record, completion: completion)
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}
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}
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case .failure(let error):
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completion(.failure(error))
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}
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}
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}
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func moveWebFeed(_ webFeed: WebFeed, from: Container, to: Container, completion: @escaping (Result<Void, Error>) -> Void) {
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guard let fromContainerExternalID = from.externalID, let toContainerExternalID = to.externalID else {
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completion(.failure(CloudKitZoneError.invalidParameter))
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return
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}
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fetch(externalID: webFeed.externalID) { result in
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switch result {
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case .success(let record):
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if let containerExternalIDs = record[CloudKitWebFeed.Fields.containerExternalIDs] as? [String] {
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var containerExternalIDSet = Set(containerExternalIDs)
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containerExternalIDSet.remove(fromContainerExternalID)
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containerExternalIDSet.insert(toContainerExternalID)
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record[CloudKitWebFeed.Fields.containerExternalIDs] = Array(containerExternalIDSet)
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self.save(record, completion: completion)
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}
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case .failure(let error):
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completion(.failure(error))
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}
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}
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}
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func addWebFeed(_ webFeed: WebFeed, to: Container, completion: @escaping (Result<Void, Error>) -> Void) {
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guard let toContainerExternalID = to.externalID else {
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completion(.failure(CloudKitZoneError.invalidParameter))
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return
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}
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fetch(externalID: webFeed.externalID) { result in
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switch result {
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case .success(let record):
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if let containerExternalIDs = record[CloudKitWebFeed.Fields.containerExternalIDs] as? [String] {
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var containerExternalIDSet = Set(containerExternalIDs)
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containerExternalIDSet.insert(toContainerExternalID)
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record[CloudKitWebFeed.Fields.containerExternalIDs] = Array(containerExternalIDSet)
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self.save(record, completion: completion)
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}
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case .failure(let error):
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completion(.failure(error))
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}
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}
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}
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func findOrCreateAccount(completion: @escaping (Result<String, Error>) -> Void) {
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let predicate = NSPredicate(format: "isAccount = \"1\"")
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let ckQuery = CKQuery(recordType: CloudKitContainer.recordType, predicate: predicate)
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query(ckQuery) { result in
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switch result {
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case .success(let records):
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if records.count > 0 {
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completion(.success(records[0].externalID))
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} else {
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self.createContainer(name: "Account", isAccount: true, completion: completion)
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}
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case .failure:
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self.createContainer(name: "Account", isAccount: true, completion: completion)
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}
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}
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}
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func createFolder(name: String, completion: @escaping (Result<String, Error>) -> Void) {
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createContainer(name: name, isAccount: false, completion: completion)
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}
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func renameFolder(_ folder: Folder, to name: String, completion: @escaping (Result<Void, Error>) -> Void) {
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guard let externalID = folder.externalID else {
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completion(.failure(CloudKitZoneError.invalidParameter))
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return
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}
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let recordID = CKRecord.ID(recordName: externalID, zoneID: Self.zoneID)
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let record = CKRecord(recordType: CloudKitContainer.recordType, recordID: recordID)
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record[CloudKitContainer.Fields.name] = name
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save(record) { result in
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switch result {
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case .success:
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completion(.success(()))
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case .failure(let error):
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completion(.failure(error))
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}
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}
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}
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func removeFolder(_ folder: Folder, completion: @escaping (Result<Void, Error>) -> Void) {
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delete(externalID: folder.externalID, completion: completion)
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}
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}
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private extension CloudKitAccountZone {
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func newWebFeedCKRecord(feedSpecifier: RSOPMLFeedSpecifier, containerExternalID: String) -> CKRecord {
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let record = CKRecord(recordType: CloudKitWebFeed.recordType, recordID: generateRecordID())
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record[CloudKitWebFeed.Fields.url] = feedSpecifier.feedURL
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if let editedName = feedSpecifier.title {
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record[CloudKitWebFeed.Fields.editedName] = editedName
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}
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record[CloudKitWebFeed.Fields.containerExternalIDs] = [containerExternalID]
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return record
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}
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func newContainerCKRecord(name: String) -> CKRecord {
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let record = CKRecord(recordType: CloudKitContainer.recordType, recordID: generateRecordID())
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record[CloudKitContainer.Fields.name] = name
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record[CloudKitContainer.Fields.isAccount] = "0"
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return record
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}
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func createContainer(name: String, isAccount: Bool, completion: @escaping (Result<String, Error>) -> Void) {
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let record = CKRecord(recordType: CloudKitContainer.recordType, recordID: generateRecordID())
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record[CloudKitContainer.Fields.name] = name
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record[CloudKitContainer.Fields.isAccount] = isAccount ? "1" : "0"
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save(record) { result in
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switch result {
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case .success:
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completion(.success(record.externalID))
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case .failure(let error):
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completion(.failure(error))
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}
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}
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}
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}
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