\(escapedTitle)

// // OPMLFile.swift // Account // // Created by Maurice Parker on 9/12/19. // Copyright © 2019 Ranchero Software, LLC. All rights reserved. // import Foundation import os.log import RSCore import RSParser final class OPMLFile: NSObject, NSFilePresenter { private var log = OSLog(subsystem: Bundle.main.bundleIdentifier!, category: "account") private var isDirty = false { didSet { queueSaveToDiskIfNeeded() } } private var isLoading = false private let fileURL: URL private let account: Account private let operationQueue: OperationQueue var presentedItemURL: URL? { return fileURL } var presentedItemOperationQueue: OperationQueue { return operationQueue } init(filename: String, account: Account) { self.fileURL = URL(fileURLWithPath: filename) self.account = account operationQueue = OperationQueue() operationQueue.maxConcurrentOperationCount = 1 super.init() NSFileCoordinator.addFilePresenter(self) } func presentedItemDidChange() { DispatchQueue.main.async { self.reload() } } func markAsDirty() { if !isLoading { isDirty = true } } func queueSaveToDiskIfNeeded() { Account.saveQueue.add(self, #selector(saveToDiskIfNeeded)) } func load() { isLoading = true guard let opmlItems = parsedOPMLItems() else { return } BatchUpdate.shared.perform { account.loadOPMLItems(opmlItems, parentFolder: nil) } isLoading = false } } private extension OPMLFile { @objc func saveToDiskIfNeeded() { if isDirty && !account.isDeleted { isDirty = false save() } } func save() { let opmlDocumentString = opmlDocument() let errorPointer: NSErrorPointer = nil let fileCoordinator = NSFileCoordinator(filePresenter: self) fileCoordinator.coordinate(writingItemAt: fileURL, options: .forReplacing, error: errorPointer, byAccessor: { writeURL in do { try opmlDocumentString.write(to: writeURL, atomically: true, encoding: .utf8) } catch let error as NSError { os_log(.error, log: log, "OPML save to disk failed: %@.", error.localizedDescription) } }) if let error = errorPointer?.pointee { os_log(.error, log: log, "OPML save to disk coordination failed: %@.", error.localizedDescription) } } func reload() { isLoading = true guard let opmlItems = parsedOPMLItems() else { return } BatchUpdate.shared.perform { account.topLevelFeeds.removeAll() account.loadOPMLItems(opmlItems, parentFolder: nil) } isLoading = false } func parsedOPMLItems() -> [RSOPMLItem]? { var fileData: Data? = nil let errorPointer: NSErrorPointer = nil let fileCoordinator = NSFileCoordinator(filePresenter: self) fileCoordinator.coordinate(readingItemAt: fileURL, options: [], error: errorPointer, byAccessor: { readURL in do { fileData = try Data(contentsOf: readURL) } catch { // Commented out because it’s not an error on first run. // TODO: make it so we know if it’s first run or not. //NSApplication.shared.presentError(error) os_log(.error, log: log, "OPML read from disk failed: %@.", error.localizedDescription) } }) if let error = errorPointer?.pointee { os_log(.error, log: log, "OPML read from disk coordination failed: %@.", error.localizedDescription) } guard let opmlData = fileData else { return nil } let parserData = ParserData(url: fileURL.absoluteString, data: opmlData) var opmlDocument: RSOPMLDocument? do { opmlDocument = try RSOPMLParser.parseOPML(with: parserData) } catch { os_log(.error, log: log, "OPML Import failed: %@.", error.localizedDescription) return nil } return opmlDocument?.children } func opmlDocument() -> String { let escapedTitle = account.nameForDisplay.rs_stringByEscapingSpecialXMLCharacters() let openingText = """ \(escapedTitle) """ let middleText = account.OPMLString(indentLevel: 0) let closingText = """ """ let opml = openingText + middleText + closingText return opml } }