Add settings scene.

iOS/Settings/SettingsViewController.swift

@@ -7,28 +7,146 @@
 //
 
 import UIKit
+import Account
 
 class SettingsViewController: UITableViewController {
 
-    override func viewDidLoad() {
-        super.viewDidLoad()
+	@IBOutlet weak var refreshIntervalLabel: UILabel!
+	@IBOutlet weak var timelineSortOrderSwitch: UISwitch!
+	
+	weak var presentingParentController: UIViewController?
+	
+	override func viewWillAppear(_ animated: Bool) {
+		super.viewWillAppear(animated)
+		
+		if AppDefaults.timelineSortDirection == .orderedAscending {
+			timelineSortOrderSwitch.isOn = true
+		} else {
+			timelineSortOrderSwitch.isOn = false
+		}
 
-        // Do any additional setup after loading the view.
-    }
-    
+		refreshIntervalLabel.text = AppDefaults.refreshInterval.description()
+	}
 
-    /*
-    // MARK: - Navigation
-
-    // In a storyboard-based application, you will often want to do a little preparation before navigation
-    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
-        // Get the new view controller using segue.destination.
-        // Pass the selected object to the new view controller.
-    }
-    */
+	override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
+		
+		switch indexPath.section {
+		case 0:
+			print("Accounts isn't ready yet")
+		case 1:
+			switch indexPath.row {
+			case 0:
+				let timeline = UIStoryboard.settings.instantiateController(ofType: AboutViewController.self)
+				self.navigationController?.pushViewController(timeline, animated: true)
+			case 1:
+				UIApplication.shared.open(URL(string: "https://ranchero.com/netnewswire/")!, options: [:])
+			case 2:
+				UIApplication.shared.open(URL(string: "https://github.com/brentsimmons/NetNewsWire")!, options: [:])
+			case 3:
+				UIApplication.shared.open(URL(string: "https://github.com/brentsimmons/NetNewsWire/issues")!, options: [:])
+			default:
+				UIApplication.shared.open(URL(string: "https://github.com/brentsimmons/NetNewsWire/tree/master/Technotes")!, options: [:])
+			}
+		case 2:
+			UIApplication.shared.open(URL(string: "https://appcamp4girls.com/contribute/")!, options: [:])
+		default:
+			switch indexPath.row {
+			case 0:
+				let timeline = UIStoryboard.settings.instantiateController(ofType: RefreshIntervalViewController.self)
+				self.navigationController?.pushViewController(timeline, animated: true)
+			case 1:
+				addFeed()
+			case 2:
+				importOPML()
+			case 3:
+				exportOPML()
+			default:
+				print("export")
+			}
+		}
+		
+	}
 
 	@IBAction func done(_ sender: Any) {
 		dismiss(animated: true)
 	}
 	
+	@IBAction func switchTimelineOrder(_ sender: Any) {
+		if timelineSortOrderSwitch.isOn {
+			AppDefaults.timelineSortDirection = .orderedAscending
+		} else {
+			AppDefaults.timelineSortDirection = .orderedDescending
+		}
+	}
+	
+}
+
+// MARK: OPML Document Picker
+
+extension SettingsViewController: UIDocumentPickerDelegate {
+	
+	func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL]) {
+		
+		for url in urls {
+			do {
+				try OPMLImporter.parseAndImport(fileURL: url, account: AccountManager.shared.localAccount)
+			} catch {
+				presentError(title: "OPML Import Error", message: error.localizedDescription)
+			}
+		}
+		
+	}
+	
+}
+
+// MARK: Private
+
+private extension SettingsViewController {
+	
+	func addFeed() {
+		
+		let appNewsURLString = "https://nnw.ranchero.com/feed.json"
+		if AccountManager.shared.anyAccountHasFeedWithURL(appNewsURLString) {
+			presentError(title: "Subscribe", message: "You are already subscribed to the NetNewsWire news feed.")
+			return
+		}
+		
+		self.dismiss(animated: true)
+		
+		let addNavViewController = UIStoryboard.add.instantiateInitialViewController() as! UINavigationController
+		let addViewController = addNavViewController.topViewController as! AddContainerViewController
+		addNavViewController.modalPresentationStyle = .formSheet
+		addViewController.initialFeed = appNewsURLString
+		addViewController.initialFeedName = "NetNewsWire News"
+		
+		presentingParentController?.present(addNavViewController, animated: true)
+		
+	}
+	
+	func importOPML() {
+		
+		let docPicker = UIDocumentPickerViewController(documentTypes: ["public.xml", "org.opml.opml"], in: .import)
+		docPicker.delegate = self
+		docPicker.modalPresentationStyle = .formSheet
+		self.present(docPicker, animated: true)
+		
+	}
+	
+	func exportOPML() {
+		
+		let filename = "MySubscriptions.opml"
+		let tempFile = FileManager.default.temporaryDirectory.appendingPathComponent(filename)
+		let opmlString = OPMLExporter.OPMLString(with: AccountManager.shared.localAccount, title: filename)
+		do {
+			try opmlString.write(to: tempFile, atomically: true, encoding: String.Encoding.utf8)
+		} catch {
+			self.presentError(title: "OPML Export Error", message: error.localizedDescription)
+		}
+		
+		let docPicker = UIDocumentPickerViewController(url: tempFile, in: .exportToService)
+		docPicker.modalPresentationStyle = .formSheet
+		self.present(docPicker, animated: true)
+		
+	}
+	
 }