Convert App code to Swift

Online/AppDelegate.swift

@@ -0,0 +1,162 @@
+//
+//  AppDelegate.swift
+//  Online
+//
+//  Created by syan on 13/04/2024.
+//  Copyright © 2024 Syan. All rights reserved.
+//
+
+import Cocoa
+import SYProxy
+
+@main
+class AppDelegate: NSObject, NSApplicationDelegate {
+
+    // MARK: Properties
+    @IBOutlet private var statusMenu: NSMenu!
+    private var statusItem: NSStatusItem = NSStatusBar.system.statusItem(withLength: NSStatusItem.variableLength)
+    private var popover: NSPopover?
+
+    // MARK: AppDelegate
+    func applicationDidFinishLaunching(_ notification: Notification) {
+        statusMenu.delegate = self
+        statusItem.menu = statusMenu
+        statusItem.image = WebsiteStatus.unknown.image
+        statusItem.highlightMode = true
+
+        Storage.shared.delegate = self
+
+        Crawler.shared.websites = Storage.shared.websites
+        Crawler.shared.delegate = self
+
+        ProxyURLProtocol.register()
+        ProxyURLProtocol.isLoggingEnabled = true
+        ProxyURLProtocol.dataSource = self
+    }
+
+    func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
+        return false
+    }
+
+    // MARK: Images
+    private func updateIcon() {
+        let statuses = Array(Crawler.shared.statuses.values)
+        let prominentStatus = statuses.first(where: \.isError) ?? statuses.first(where: \.isTimeout) ?? statuses.first(where: \.isOn) ?? WebsiteStatus.unknown
+        statusItem.image = prominentStatus.image
+        statusItem.menu?.items.forEach { item in
+            if let websiteID = item.representedObject as? String {
+                let status = Crawler.shared.statuses[websiteID] ?? .unknown
+                item.image = status.image
+            }
+        }
+    }
+}
+
+extension AppDelegate {
+    private func openForm(for website: Website?) {
+        let vc = FormViewController.viewController(website: website)
+        openPopover(for: vc)
+    }
+
+    private func openSettings() {
+        let vc = SettingsViewController.nibViewController()
+        openPopover(for: vc)
+    }
+
+    private func openPopover(for viewController: NSViewController) {
+        popover?.close()
+
+        popover = NSPopover()
+        popover?.behavior = .transient
+        popover?.contentViewController = viewController
+        popover?.animates = false
+        popover?.show(relativeTo: statusItem.button!.frame, of: statusItem.button!, preferredEdge: .minY)
+        popover?.contentViewController?.view.window?.makeKeyAndOrderFront(NSApp)
+        NSApp.activate(ignoringOtherApps: true)
+    }
+}
+
+extension AppDelegate: StorageDelegate {
+    func storageColorsChanged(_ storage: Storage) {
+        updateIcon()
+    }
+
+    func storageWebsitesChanged(_ storage: Storage) {
+        Crawler.shared.websites = storage.websites
+    }
+}
+
+extension AppDelegate: CrawlerDelegate {
+    func crawlerResultsChanged(_ crawler: Crawler) {
+        updateIcon()
+    }
+}
+
+extension AppDelegate: ProxyURLProtocolDataSource {
+    func proxyURLProtocolRequiresFirstProxyMatching(url: URL) -> Proxy? {
+        return Storage.shared.proxies.first(matching: url)
+    }
+}
+
+extension AppDelegate: NSMenuDelegate {
+    func menuWillOpen(_ menu: NSMenu) {
+        popover?.close()
+    }
+
+    func menuNeedsUpdate(_ menu: NSMenu) {
+        guard menu == statusMenu else { return }
+
+        menu.removeAllItems()
+
+        for website in Storage.shared.websites {
+            let status = Crawler.shared.statuses[website.identifier] ?? .unknown
+
+            let item = NSMenuItem(title: website.name, action: nil, keyEquivalent: "")
+            item.image = status.image
+            item.representedObject = website.identifier
+            item.submenu = NSMenu()
+            menu.addItem(item)
+
+            addMenuItem(title: status.message, to: item.submenu!)
+            addMenuItem(title: "Edit...", to: item.submenu!) {
+                self.openForm(for: website)
+            }
+            addMenuItem(title: "Delete", to: item.submenu!) {
+                let alert = NSAlert()
+                alert.messageText = "Are you sure you want to delete \(website.name)?"
+                alert.informativeText = "This operation cannot be undone."
+                alert.addButton(withTitle: "Delete").keyEquivalent = ""
+                alert.addButton(withTitle: "Cancel").keyEquivalent = "\r"
+                if alert.runModal() == .alertFirstButtonReturn {
+                    Storage.shared.removeWebsite(website)
+                }
+            }
+        }
+
+        menu.addItem(.separator())
+
+        addMenuItem(title: "Add a new website...", to: menu) {
+            self.openForm(for: nil)
+        }
+
+        addMenuItem(title: "Settings", to: menu) {
+            self.openSettings()
+        }
+
+        addMenuItem(title: "Quit", to: menu) {
+            NSApp.terminate(nil)
+        }
+    }
+
+    private func addMenuItem(title: String, to menu: NSMenu, action: (() -> ())? = nil) {
+        let item = NSMenuItem(title: title, action: #selector(self.menuTapped(item:)), keyEquivalent: "")
+        item.target = self
+        item.representedObject = action
+        menu.addItem(item)
+    }
+
+    @objc private func menuTapped(item: NSMenuItem) {
+        let action = item.representedObject as? () -> ()
+        action?()
+    }
+}

Online/Base.lproj/MainMenu.xib

@@ -1,7 +1,8 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="8191" systemVersion="15B42" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="22505" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
     <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="8191"/>
+        <deployment identifier="macosx"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="22505"/>
     </dependencies>
     <objects>
         <customObject id="-2" userLabel="File's Owner" customClass="NSApplication">
@@ -11,7 +12,7 @@
         </customObject>
         <customObject id="-1" userLabel="First Responder" customClass="FirstResponder"/>
         <customObject id="-3" userLabel="Application" customClass="NSObject"/>
-        <customObject id="Voe-Tx-rLC" customClass="SYAppDelegate">
+        <customObject id="Voe-Tx-rLC" customClass="AppDelegate" customModule="Online" customModuleProvider="target">
             <connections>
                 <outlet property="statusMenu" destination="wsM-49-s7F" id="9UZ-D1-BWa"/>
             </connections>
@@ -665,6 +666,7 @@
                     </menu>
                 </menuItem>
             </items>
+            <point key="canvasLocation" x="19" y="123"/>
         </menu>
         <menu id="wsM-49-s7F">
             <point key="canvasLocation" x="896.5" y="176.5"/>

Online/Controllers/Crawler.swift

@@ -0,0 +1,80 @@
+//
+//  Crawler.swift
+//  Online
+//
+//  Created by syan on 13/04/2024.
+//  Copyright © 2024 Syan. All rights reserved.
+//
+
+import Foundation
+
+protocol CrawlerDelegate: NSObjectProtocol {
+    func crawlerResultsChanged(_ crawler: Crawler)
+}
+
+class Crawler {
+
+    // MARK: Init
+    static let shared = Crawler()
+    private init() {
+        restartAll()
+    }
+
+    // MARK: Properties
+    weak var delegate: CrawlerDelegate?
+    var websites: [Website] = [] {
+        didSet {
+            restartAll()
+        }
+    }
+    private(set) var statuses: [String: WebsiteStatus] = [:]
+    private var timers: [Timer] = []
+    private let urlSession = URLSession(configuration: .default)
+
+    // MARK: Internal methods
+    private func restartAll() {
+        timers.forEach { $0.invalidate() }
+        timers = []
+
+        websites.forEach { website in
+            crawl(websiteID: website.identifier)
+        }
+    }
+
+    private func crawl(websiteID: String) {
+        guard let website = websites.first(where: { $0.identifier == websiteID }), let url = URL(string: website.url) else {
+            statuses[websiteID] = nil
+            return
+        }
+
+        let request = URLRequest(url: url, cachePolicy: .reloadIgnoringCacheData, timeoutInterval: website.timeout)
+        let task = urlSession.dataTask(with: request) { data, response, error in
+            let status = WebsiteStatus(httpStatus: (response as? HTTPURLResponse)?.statusCode, error: error)
+            self.statuses[websiteID] = status
+
+            let timeBeforeNextUpdate = status.isOn ? website.timeBeforeRetryIfSuccessed : website.timeBeforeRetryIfFailed
+            let timer = Timer(timeInterval: timeBeforeNextUpdate, target: self, selector: #selector(self.timerTick), userInfo: ["websiteID": websiteID], repeats: false)
+            RunLoop.main.add(timer, forMode: .common)
+            self.timers.append(timer)
+
+            DispatchQueue.main.async {
+                self.delegate?.crawlerResultsChanged(self)
+            }
+        }
+        task.resume()
+    }
+
+    @objc private func timerTick(_ timer: Timer) {
+        defer {
+            timer.invalidate()
+            timers.removeAll(where: { $0 == timer })
+        }
+
+        guard let userInfo = timer.userInfo as? [String: String], let websiteID = userInfo["websiteID"] else {
+            print("Unknown timer fired, userInfo was: \(timer.userInfo ?? [:])")
+            return
+        }
+
+        crawl(websiteID: websiteID)
+    }
+}

Online/Controllers/Storage.swift

@@ -0,0 +1,74 @@
+//
+//  Storage.swift
+//  Online
+//
+//  Created by syan on 13/04/2024.
+//  Copyright © 2024 Syan. All rights reserved.
+//
+
+import Foundation
+import Cocoa
+import SYProxy
+
+protocol StorageDelegate: NSObjectProtocol {
+    func storageWebsitesChanged(_ storage: Storage)
+    func storageColorsChanged(_ storage: Storage)
+}
+
+class Storage {
+
+    // MARK: Init
+    static let shared = Storage()
+    private init() {
+        websites = UserDefaults.standard.nsCodingValues(Website.self, forKey: "websites") ?? []
+    }
+
+    // MARK: Properties
+    weak var delegate: StorageDelegate?
+
+    // MARK: Colors
+    var colorSuccess: NSColor {
+        get { UserDefaults.standard.nsCodingValue(NSColor.self, forKey: "colorSuccess") ?? defaultColorSuccess }
+        set { UserDefaults.standard.set(nsCodingValue: newValue, forKey: "colorSuccess"); delegate?.storageColorsChanged(self) }
+    }
+    var colorTimeout: NSColor {
+        get { UserDefaults.standard.nsCodingValue(NSColor.self, forKey: "colorTimeout") ?? defaultColorTimeout }
+        set { UserDefaults.standard.set(nsCodingValue: newValue, forKey: "colorTimeout"); delegate?.storageColorsChanged(self) }
+    }
+    var colorFailure: NSColor {
+        get { UserDefaults.standard.nsCodingValue(NSColor.self, forKey: "colorFailure") ?? defaultColorFailure }
+        set { UserDefaults.standard.set(nsCodingValue: newValue, forKey: "colorFailure"); delegate?.storageColorsChanged(self) }
+    }
+    let defaultColorSuccess: NSColor = .init(calibratedRed: 0, green: 0.82, blue: 0.32, alpha: 1)
+    let defaultColorTimeout: NSColor = .init(calibratedRed: 1, green: 0.75, blue: 0.29, alpha: 1)
+    let defaultColorFailure: NSColor = .init(calibratedRed: 1, green: 0.34, blue: 0.37, alpha: 1)
+
+    // MARK: Websites
+    private(set) var websites: [Website] {
+        didSet {
+            UserDefaults.standard.set(nsCodingValues: websites, forKey: "websites")
+            delegate?.storageWebsitesChanged(self)
+        }
+    }
+
+    func addWebsite(_ website: Website) {
+        if let index = websites.firstIndex(where: { $0.identifier == website.identifier }) {
+            websites.replaceSubrange(index..<(index + 1), with: [website])
+        }
+        else {
+            websites.append(website)
+        }
+    }
+
+    func removeWebsite(_ website: Website) {
+        websites.removeAll(where: { $0.identifier == website.identifier })
+    }
+
+    func website(for id: String) -> Website? {
+        return websites.first(where: { $0.identifier == id })
+    }
+
+    var proxies: [Proxy] {
+        return websites.map(\.proxy)
+    }
+}

Online/Extensions/NSColor+SY.swift

@@ -0,0 +1,20 @@
+//
+//  NSColor+SY.swift
+//  Online
+//
+//  Created by syan on 14/04/2024.
+//  Copyright © 2024 Syan. All rights reserved.
+//
+
+import Cocoa
+
+extension NSColor {
+    func darken(by amount: Double) -> NSColor {
+        return NSColor(
+            calibratedRed: redComponent - amount,
+            green: greenComponent - amount,
+            blue: blueComponent - amount,
+            alpha: alphaComponent
+        )
+    }
+}

Online/Extensions/NSImage+SY.swift

@@ -0,0 +1,18 @@
+//
+//  NSImage+SY.swift
+//  Online
+//
+//  Created by syan on 13/04/2024.
+//  Copyright © 2024 Syan. All rights reserved.
+//
+
+import Cocoa
+
+extension NSImage {
+    convenience init(color: NSColor, size: NSSize = .init(width: 1, height: 1)) {
+        self.init(size: size)
+        lockFocus()
+        color.drawSwatch(in: NSRect(origin: .zero, size: size))
+        unlockFocus()
+    }
+}