156 lines
6.0 KiB
Swift
156 lines
6.0 KiB
Swift
//
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// CloudKitArticlesZoneDelegate.swift
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// Account
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//
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// Created by Maurice Parker on 4/1/20.
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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 RSParser
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import RSWeb
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import CloudKit
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import SyncDatabase
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import Articles
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import ArticlesDatabase
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class CloudKitArticlesZoneDelegate: CloudKitZoneDelegate {
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private var log = OSLog(subsystem: Bundle.main.bundleIdentifier!, category: "CloudKit")
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weak var account: Account?
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var database: SyncDatabase
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weak var articlesZone: CloudKitArticlesZone?
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init(account: Account, database: SyncDatabase, articlesZone: CloudKitArticlesZone) {
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self.account = account
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self.database = database
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self.articlesZone = articlesZone
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}
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func cloudKitDidModify(changed: [CKRecord], deleted: [CloudKitRecordKey], completion: @escaping (Result<Void, Error>) -> Void) {
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database.selectPendingReadStatusArticleIDs() { result in
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switch result {
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case .success(let pendingReadStatusArticleIDs):
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self.database.selectPendingStarredStatusArticleIDs() { result in
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switch result {
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case .success(let pendingStarredStatusArticleIDs):
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self.process(records: changed,
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pendingReadStatusArticleIDs: pendingReadStatusArticleIDs,
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pendingStarredStatusArticleIDs: pendingStarredStatusArticleIDs,
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completion: completion)
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case .failure(let error):
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os_log(.error, log: self.log, "Error occurred geting pending starred records: %@", error.localizedDescription)
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}
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}
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case .failure(let error):
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os_log(.error, log: self.log, "Error occurred getting pending read status records: %@", error.localizedDescription)
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}
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}
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}
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}
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private extension CloudKitArticlesZoneDelegate {
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func process(records: [CKRecord], pendingReadStatusArticleIDs: Set<String>, pendingStarredStatusArticleIDs: Set<String>, completion: @escaping (Result<Void, Error>) -> Void) {
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let receivedUnreadArticleIDs = Set(records.filter({ $0[CloudKitArticlesZone.CloudKitArticleStatus.Fields.read] == "0" }).map({ $0.externalID }))
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let receivedReadArticleIDs = Set(records.filter({ $0[CloudKitArticlesZone.CloudKitArticleStatus.Fields.read] == "1" }).map({ $0.externalID }))
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let receivedUnstarredArticleIDs = Set(records.filter({ $0[CloudKitArticlesZone.CloudKitArticleStatus.Fields.starred] == "0" }).map({ $0.externalID }))
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let receivedStarredArticleIDs = Set(records.filter({ $0[CloudKitArticlesZone.CloudKitArticleStatus.Fields.starred] == "1" }).map({ $0.externalID }))
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let receivedArticles = records.filter({ $0.recordType == CloudKitArticlesZone.CloudKitArticle.recordType })
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let updateableUnreadArticleIDs = receivedUnreadArticleIDs.subtracting(pendingReadStatusArticleIDs)
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let updateableReadArticleIDs = receivedReadArticleIDs.subtracting(pendingReadStatusArticleIDs)
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let updateableUnstarredArticleIDs = receivedUnstarredArticleIDs.subtracting(pendingStarredStatusArticleIDs)
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let updateableStarredArticleIDs = receivedStarredArticleIDs.subtracting(pendingStarredStatusArticleIDs)
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let group = DispatchGroup()
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group.enter()
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account?.markAsUnread(updateableUnreadArticleIDs) { result in
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group.leave()
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}
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group.enter()
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account?.markAsRead(updateableReadArticleIDs) { _ in
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group.leave()
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}
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group.enter()
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account?.markAsUnstarred(updateableUnstarredArticleIDs) { _ in
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group.leave()
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}
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group.enter()
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account?.markAsStarred(updateableStarredArticleIDs) { _ in
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group.leave()
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}
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let parsedItems = receivedArticles.compactMap { makeParsedItem($0) }
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let webFeedIDsAndItems = Dictionary(grouping: parsedItems, by: { item in item.feedURL } ).mapValues { Set($0) }
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for (webFeedID, parsedItems) in webFeedIDsAndItems {
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group.enter()
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self.account?.update(webFeedID, with: parsedItems) { result in
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group.leave()
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if case .failure(let databaseError) = result {
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os_log(.error, log: self.log, "Error occurred while storing articles: %@", databaseError.localizedDescription)
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}
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}
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}
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group.notify(queue: DispatchQueue.main) {
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completion(.success(()))
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}
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}
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func makeParsedItem(_ articleRecord: CKRecord) -> ParsedItem? {
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var parsedAuthors = Set<ParsedAuthor>()
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let decoder = JSONDecoder()
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if let encodedParsedAuthors = articleRecord[CloudKitArticlesZone.CloudKitArticle.Fields.parsedAuthors] as? [String] {
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for encodedParsedAuthor in encodedParsedAuthors {
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if let data = encodedParsedAuthor.data(using: .utf8), let parsedAuthor = try? decoder.decode(ParsedAuthor.self, from: data) {
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parsedAuthors.insert(parsedAuthor)
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}
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}
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}
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guard let uniqueID = articleRecord[CloudKitArticlesZone.CloudKitArticle.Fields.uniqueID] as? String,
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let webFeedURL = articleRecord[CloudKitArticlesZone.CloudKitArticle.Fields.webFeedURL] as? String else {
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return nil
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}
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let parsedItem = ParsedItem(syncServiceID: nil,
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uniqueID: uniqueID,
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feedURL: webFeedURL,
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url: articleRecord[CloudKitArticlesZone.CloudKitArticle.Fields.url] as? String,
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externalURL: articleRecord[CloudKitArticlesZone.CloudKitArticle.Fields.externalURL] as? String,
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title: articleRecord[CloudKitArticlesZone.CloudKitArticle.Fields.title] as? String,
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language: nil,
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contentHTML: articleRecord[CloudKitArticlesZone.CloudKitArticle.Fields.contentHTML] as? String,
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contentText: articleRecord[CloudKitArticlesZone.CloudKitArticle.Fields.contentText] as? String,
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summary: articleRecord[CloudKitArticlesZone.CloudKitArticle.Fields.summary] as? String,
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imageURL: articleRecord[CloudKitArticlesZone.CloudKitArticle.Fields.imageURL] as? String,
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bannerImageURL: articleRecord[CloudKitArticlesZone.CloudKitArticle.Fields.imageURL] as? String,
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datePublished: articleRecord[CloudKitArticlesZone.CloudKitArticle.Fields.datePublished] as? Date,
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dateModified: articleRecord[CloudKitArticlesZone.CloudKitArticle.Fields.dateModified] as? Date,
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authors: parsedAuthors,
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tags: nil,
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attachments: nil)
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return parsedItem
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}
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}
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