110 lines
3.6 KiB
Swift
110 lines
3.6 KiB
Swift
//
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// NNW3ImportController.swift
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// NetNewsWire
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//
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// Created by Brent Simmons on 10/14/19.
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// Copyright © 2019 Ranchero Software. All rights reserved.
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//
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import AppKit
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import Account
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import UniformTypeIdentifiers
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@MainActor struct NNW3ImportController {
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/// Import NNW3 subscriptions if they exist.
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/// Return true if Subscriptions.plist was found and subscriptions were imported.
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static func importSubscriptionsIfFileExists(account: Account) -> Bool {
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guard let subscriptionsPlistURL = defaultFileURL else {
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return false
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}
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if !FileManager.default.fileExists(atPath: subscriptionsPlistURL.path) {
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return false
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}
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NNW3ImportController.importSubscriptionsPlist(subscriptionsPlistURL, into: account)
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return true
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}
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/// Run an NSOpenPanel and import subscriptions (if the user chooses to).
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static func askUserToImportNNW3Subscriptions(window: NSWindow) {
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chooseFile(window)
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}
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}
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private extension NNW3ImportController {
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/// URL to ~/Library/Application Support/NetNewsWire/Subscriptions.plist
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static var defaultFileURL: URL? {
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guard let applicationSupportURL = FileManager.default.urls(for: .applicationSupportDirectory, in: .userDomainMask).first else {
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return nil
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}
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let folderURL = applicationSupportURL.appendingPathComponent("NetNewsWire", isDirectory: true)
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return folderURL.appendingPathComponent("Subscriptions.plist", isDirectory: false)
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}
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/// Import Subscriptions.plist file. Convert to OPML and then import into specified Account.
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static func importSubscriptionsPlist(_ subscriptionsPlistURL: URL, into account: Account) {
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guard let opmlURL = convertToOPMLFile(subscriptionsPlistURL: subscriptionsPlistURL) else {
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return
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}
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Task {
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do {
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try await account.importOPML(opmlURL)
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try? FileManager.default.removeItem(at: opmlURL)
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} catch {
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NSApplication.shared.presentError(error)
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}
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}
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}
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/// Run the NSOpenPanel. On success, import subscriptions to the selected account.
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static func chooseFile(_ window: NSWindow) {
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let accessoryViewController = NNW3OpenPanelAccessoryViewController()
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let panel = NSOpenPanel()
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panel.canDownloadUbiquitousContents = true
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panel.canResolveUbiquitousConflicts = true
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panel.canChooseFiles = true
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panel.allowsMultipleSelection = false
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panel.canChooseDirectories = false
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panel.resolvesAliases = true
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panel.directoryURL = NNW3ImportController.defaultFileURL
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panel.allowedContentTypes = [UTType.propertyList]
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panel.allowsOtherFileTypes = false
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panel.accessoryView = accessoryViewController.view
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panel.isAccessoryViewDisclosed = true
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panel.title = NSLocalizedString("Choose a Subscriptions.plist file:", comment: "NNW3 Import")
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panel.beginSheetModal(for: window) { modalResult in
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guard modalResult == .OK, let subscriptionsPlistURL = panel.url else {
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return
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}
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guard let account = accessoryViewController.selectedAccount else {
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return
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}
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AppDefaults.shared.importOPMLAccountID = account.accountID
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NNW3ImportController.importSubscriptionsPlist(subscriptionsPlistURL, into: account)
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}
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}
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/// Convert Subscriptions.plist on disk to a temporary OPML file.
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static func convertToOPMLFile(subscriptionsPlistURL url: URL) -> URL? {
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guard let document = NNW3Document(subscriptionsPlistURL: url) else {
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return nil
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}
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let opml = document.OPMLString(indentLevel: 0, allowCustomAttributes: false)
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let opmlURL = FileManager.default.temporaryDirectory.appendingPathComponent("NNW3.opml")
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do {
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try opml.write(to: opmlURL, atomically: true, encoding: .utf8)
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} catch let error as NSError {
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NSApplication.shared.presentError(error)
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return nil
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}
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return opmlURL
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}
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}
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