zoom_app/zoom_app/AppDelegate.swift

//
//  AppDelegate.swift
//  zoom_app
//
//  Created by Dev Mac 1 on 14/04/2026.
//

import Cocoa

@main
class AppDelegate: NSObject, NSApplicationDelegate, NSMenuDelegate {
    private let darkModeDefaultsKey = "settings.darkModeEnabled"
    private let loginStateKey = "zoom_app.isLoggedIn"
    private var statusItem: NSStatusItem?
    private var statusMenu: NSMenu?
    private var mainWindowController: NSWindowController?
    private weak var mainWindow: NSWindow?
    private var mainOriginalContentViewController: NSViewController?

    private enum MenuItemTag: Int {
        case openHome = 10
        case openMeetings = 11
        case openScheduler = 12
        case openWidgets = 13
        case openSettings = 14
        case newMeeting = 20
        case joinMeeting = 21
        case scheduleMeeting = 22
        case auth = 30
        case quit = 99
    }

    private enum DefaultWindowSize {
        static let width: CGFloat = 1020
        static let height: CGFloat = 690
    }
    
    


    func applicationDidFinishLaunching(_ aNotification: Notification) {
        // Ensure we are a regular app so windows can appear reliably.
        // (Some configurations behave like an accessory/menubar app otherwise.)
        NSApp.setActivationPolicy(.regular)

        let darkEnabled = systemPrefersDarkMode()
        UserDefaults.standard.set(darkEnabled, forKey: darkModeDefaultsKey)
        NSApp.appearance = NSAppearance(named: darkEnabled ? .darkAqua : .aqua)
        configureStatusItem()

        showSplashThenMainWindow()
    }

    func applicationWillTerminate(_ aNotification: Notification) {
        // Insert code here to tear down your application
    }

    func applicationSupportsSecureRestorableState(_ app: NSApplication) -> Bool {
        // If enabled, macOS can restore the last window frame (size/position) on next launch.
        // This app wants a consistent default launch size instead.
        return false
    }

    private func applyDefaultWindowSizeIfNeeded() {
        let targetSize = NSSize(width: DefaultWindowSize.width, height: DefaultWindowSize.height)

        for window in NSApplication.shared.windows {
            // Only touch the main app window (not OAuth popups, alerts, etc.).
            guard window.contentViewController is ViewController else { continue }

            window.isRestorable = false
            window.setContentSize(targetSize)
            window.center()
        }
    }

    private func systemPrefersDarkMode() -> Bool {
        let global = UserDefaults.standard.persistentDomain(forName: UserDefaults.globalDomain)
        let style = global?["AppleInterfaceStyle"] as? String
        return style?.lowercased() == "dark"
    }

    private func showSplashThenMainWindow() {
        let (window, originalVC) = openMainWindowIfNeededAndReturnWindow()
        guard let window else { return }

        let splashVC = SplashViewController()
        mainOriginalContentViewController = originalVC
        mainWindow = window

        // Show main window immediately with splash content.
        window.contentViewController = splashVC
        window.isRestorable = false
        window.setContentSize(NSSize(width: DefaultWindowSize.width, height: DefaultWindowSize.height))
        window.center()
        NSApp.activate(ignoringOtherApps: true)
        window.makeKeyAndOrderFront(nil)

        Timer.scheduledTimer(withTimeInterval: 3.0, repeats: false) { [weak self] _ in
            guard let self else { return }
            self.restoreMainContentAfterSplash()
        }
    }

    @discardableResult
    private func openMainWindowIfNeededAndReturnWindow() -> (NSWindow?, NSViewController?) {
        if let existing = windowHostingViewController() {
            existing.isRestorable = false
            existing.setContentSize(NSSize(width: DefaultWindowSize.width, height: DefaultWindowSize.height))
            existing.center()
            existing.makeKeyAndOrderFront(nil)
            return (existing, existing.contentViewController)
        }

        let storyboard = NSStoryboard(name: "Main", bundle: nil)
        if let controller = storyboard.instantiateInitialController() as? NSWindowController {
            mainWindowController = controller
            controller.showWindow(nil)
            if let window = controller.window {
                window.isRestorable = false
                window.setContentSize(NSSize(width: DefaultWindowSize.width, height: DefaultWindowSize.height))
                window.center()
                window.makeKeyAndOrderFront(nil)
                return (window, window.contentViewController)
            }
        }
        return (nil, nil)
    }

    private func restoreMainContentAfterSplash() {
        guard let window = mainWindow else { return }

        // If we captured the original VC (from storyboard), restore it.
        if let original = mainOriginalContentViewController {
            window.contentViewController = original
        }

        window.isRestorable = false
        window.setContentSize(NSSize(width: DefaultWindowSize.width, height: DefaultWindowSize.height))
        window.center()
        window.makeKeyAndOrderFront(nil)

        mainOriginalContentViewController = nil
        mainWindow = nil
    }

    private func configureStatusItem() {
        let item = NSStatusBar.system.statusItem(withLength: NSStatusItem.variableLength)
        if let button = item.button {
            let symbolConfig = NSImage.SymbolConfiguration(pointSize: 14, weight: .semibold)
            if let base = NSImage(systemSymbolName: "video.fill", accessibilityDescription: "Zoom App"),
               let image = base.withSymbolConfiguration(symbolConfig) {
                image.isTemplate = true
                button.image = image
                button.imagePosition = .imageOnly
                button.toolTip = "Zoom App"
            } else {
                button.title = "Z"
            }
        }

        let menu = NSMenu()
        menu.delegate = self
        item.menu = menu
        statusItem = item
        statusMenu = menu
        rebuildStatusMenu()
    }

    func menuWillOpen(_ menu: NSMenu) {
        rebuildStatusMenu()
    }

    private func rebuildStatusMenu() {
        guard let menu = statusMenu else { return }
        menu.removeAllItems()

        appendMenuItem("Open Home", tag: .openHome, to: menu)
        appendMenuItem("Open Meetings", tag: .openMeetings, to: menu)
        appendMenuItem("Open Scheduler", tag: .openScheduler, to: menu)
        appendMenuItem("Open Widgets", tag: .openWidgets, to: menu)
        appendMenuItem("Open Settings", tag: .openSettings, to: menu)
        menu.addItem(.separator())
        appendMenuItem("New Meeting", tag: .newMeeting, to: menu)
        appendMenuItem("Join Meeting", tag: .joinMeeting, to: menu)
        appendMenuItem("Schedule Meeting", tag: .scheduleMeeting, to: menu)
        menu.addItem(.separator())

        let authTitle = isUserLoggedInForMenu() ? "Sign Out" : "Sign In"
        appendMenuItem(authTitle, tag: .auth, to: menu)
        menu.addItem(.separator())
        appendMenuItem("Quit", tag: .quit, to: menu)
    }

    private func appendMenuItem(_ title: String, tag: MenuItemTag, to menu: NSMenu) {
        let item = NSMenuItem(title: title, action: #selector(handleStatusMenuAction(_:)), keyEquivalent: "")
        item.target = self
        item.tag = tag.rawValue
        menu.addItem(item)
    }

    @objc
    private func handleStatusMenuAction(_ sender: NSMenuItem) {
        guard let action = MenuItemTag(rawValue: sender.tag) else { return }

        if action == .quit {
            NSApp.terminate(nil)
            return
        }

        focusMainAppWindow()
        guard let controller = mainViewController() else { return }

        switch action {
        case .openHome:
            controller.menuBarShowSection(.home)
        case .openMeetings:
            controller.menuBarShowSection(.meetings)
        case .openScheduler:
            controller.menuBarShowSection(.scheduler)
        case .openWidgets:
            controller.menuBarShowSection(.widgets)
        case .openSettings:
            controller.menuBarShowSection(.settings)
        case .newMeeting:
            controller.menuBarTriggerNewMeeting()
        case .joinMeeting:
            controller.menuBarTriggerJoinMeeting()
        case .scheduleMeeting:
            controller.menuBarTriggerScheduleMeeting()
        case .auth:
            controller.menuBarTriggerAuthAction()
        case .quit:
            break
        }
    }

    private func focusMainAppWindow() {
        NSApp.activate(ignoringOtherApps: true)
        if let window = windowHostingViewController() {
            window.makeKeyAndOrderFront(nil)
        } else {
            NSApp.windows.first?.makeKeyAndOrderFront(nil)
        }
    }

    private func windowHostingViewController() -> NSWindow? {
        NSApp.windows.first(where: { $0.contentViewController is ViewController })
    }

    private func mainViewController() -> ViewController? {
        if let controller = NSApp.keyWindow?.contentViewController as? ViewController {
            return controller
        }
        if let controller = NSApp.mainWindow?.contentViewController as? ViewController {
            return controller
        }
        if let controller = windowHostingViewController()?.contentViewController as? ViewController {
            return controller
        }
        return nil
    }

    private func isUserLoggedInForMenu() -> Bool {
        if let controller = mainViewController() {
            return controller.menuBarIsUserLoggedIn()
        }
        return UserDefaults.standard.bool(forKey: loginStateKey)
    }

}

private final class SplashViewController: NSViewController {
    private struct Theme {
        let isDark: Bool
        let backgroundTop: NSColor
        let backgroundBottom: NSColor
        let titleColor: NSColor
        let subtitleColor: NSColor
        let statusColor: NSColor
        let trackColor: NSColor
        let fillColor: NSColor
        let iconBadgeFill: NSColor
    }

    private final class GradientBackgroundView: NSView {
        let gradientLayer = CAGradientLayer()

        override init(frame frameRect: NSRect) {
            super.init(frame: frameRect)
            wantsLayer = true
            layer = CALayer()
            gradientLayer.startPoint = CGPoint(x: 0.1, y: 1.0)
            gradientLayer.endPoint = CGPoint(x: 0.9, y: 0.0)
            gradientLayer.locations = [0.0, 1.0]
            layer?.addSublayer(gradientLayer)
        }

        @available(*, unavailable)
        required init?(coder: NSCoder) { nil }

        override func layout() {
            super.layout()
            gradientLayer.frame = bounds
        }
    }

    private var theme: Theme = SplashViewController.makeTheme(isDark: true)
    private var dotsTimer: Timer?
    private var dotsStep: Int = 0
    private var progressTimer: Timer?
    private var progressValue: Double = 0

    private weak var rootBackground: GradientBackgroundView?
    private weak var iconBadgeView: NSView?
    private weak var iconView: NSImageView?
    private weak var titleLabel: NSTextField?
    private weak var subtitleLabel: NSTextField?
    private weak var contentStack: NSStackView?
    private weak var statusLabel: NSTextField?
    private weak var percentLabel: NSTextField?
    private weak var progressIndicator: NSProgressIndicator?

    override func viewDidLoad() {
        super.viewDidLoad()
        applyTheme()
    }

    override func viewDidAppear() {
        super.viewDidAppear()
        startAnimations()
        startDots()
        startProgress()
    }

    override func viewWillDisappear() {
        super.viewWillDisappear()
        dotsTimer?.invalidate()
        dotsTimer = nil
        progressTimer?.invalidate()
        progressTimer = nil
    }

    override func loadView() {
        let background = GradientBackgroundView()

        let stack = NSStackView()
        stack.orientation = .vertical
        stack.alignment = .centerX
        stack.spacing = 10
        stack.translatesAutoresizingMaskIntoConstraints = false

        let iconBadge = NSView()
        iconBadge.translatesAutoresizingMaskIntoConstraints = false
        iconBadge.wantsLayer = true
        iconBadge.layer?.cornerRadius = 26
        iconBadge.layer?.masksToBounds = true

        let iconView = NSImageView()
        iconView.translatesAutoresizingMaskIntoConstraints = false
        iconView.imageScaling = .scaleProportionallyUpOrDown
        iconView.image = NSApp.applicationIconImage
        iconView.wantsLayer = true

        let appName = Bundle.main.object(forInfoDictionaryKey: "CFBundleName") as? String ?? "Zoom App"
        let title = NSTextField(labelWithString: appName)
        title.font = .systemFont(ofSize: 30, weight: .semibold)

        let subtitle = NSTextField(labelWithString: "Preparing your meetings workspace.")
        subtitle.font = .systemFont(ofSize: 14, weight: .regular)
        subtitle.alignment = .center
        subtitle.maximumNumberOfLines = 2
        subtitle.lineBreakMode = .byWordWrapping

        let progressRow = NSStackView()
        progressRow.orientation = .horizontal
        progressRow.alignment = .centerY
        progressRow.spacing = 10
        progressRow.translatesAutoresizingMaskIntoConstraints = false

        let progress = NSProgressIndicator()
        progress.translatesAutoresizingMaskIntoConstraints = false
        progress.isIndeterminate = false
        progress.minValue = 0
        progress.maxValue = 100
        progress.doubleValue = 10
        progress.controlSize = .small
        progress.style = .bar

        let percent = NSTextField(labelWithString: "10%")
        percent.font = .systemFont(ofSize: 12, weight: .medium)
        percent.alignment = .right

        progressRow.addArrangedSubview(progress)
        progressRow.addArrangedSubview(percent)

        let status = NSTextField(labelWithString: "CONNECTING SERVICES")
        status.font = .systemFont(ofSize: 10.5, weight: .semibold)
        status.alignment = .center
        status.usesSingleLineMode = true
        status.setAccessibilityLabel("Splash status")

        iconBadge.addSubview(iconView)
        NSLayoutConstraint.activate([
            iconView.centerXAnchor.constraint(equalTo: iconBadge.centerXAnchor),
            iconView.centerYAnchor.constraint(equalTo: iconBadge.centerYAnchor),
            iconView.widthAnchor.constraint(equalToConstant: 78),
            iconView.heightAnchor.constraint(equalTo: iconView.widthAnchor)
        ])

        stack.addArrangedSubview(iconBadge)
        stack.addArrangedSubview(title)
        stack.addArrangedSubview(subtitle)
        stack.addArrangedSubview(progressRow)
        stack.addArrangedSubview(status)
        background.addSubview(stack)

        NSLayoutConstraint.activate([
            iconBadge.widthAnchor.constraint(equalToConstant: 104),
            iconBadge.heightAnchor.constraint(equalToConstant: 104),

            stack.centerXAnchor.constraint(equalTo: background.centerXAnchor),
            stack.centerYAnchor.constraint(equalTo: background.centerYAnchor),
            stack.leadingAnchor.constraint(greaterThanOrEqualTo: background.leadingAnchor, constant: 28),
            stack.trailingAnchor.constraint(lessThanOrEqualTo: background.trailingAnchor, constant: -28),

            progress.widthAnchor.constraint(equalToConstant: 260),
            progress.heightAnchor.constraint(equalToConstant: 6),
            percent.widthAnchor.constraint(equalToConstant: 44)
        ])

        // Initial state for animation.
        stack.alphaValue = 0
        stack.setFrameOrigin(NSPoint(x: stack.frame.origin.x, y: stack.frame.origin.y - 8))

        self.rootBackground = background
        self.iconBadgeView = iconBadge
        self.iconView = iconView
        self.titleLabel = title
        self.subtitleLabel = subtitle
        self.contentStack = stack
        self.statusLabel = status
        self.percentLabel = percent
        self.progressIndicator = progress

        view = background
    }

    private func startAnimations() {
        guard let stack = contentStack, let iconView else { return }

        // Entrance animation: fade + slight rise + gentle icon scale.
        iconView.layer?.transform = CATransform3DMakeScale(0.92, 0.92, 1)
        NSAnimationContext.runAnimationGroup { context in
            context.duration = 0.55
            context.timingFunction = CAMediaTimingFunction(name: .easeOut)
            stack.animator().alphaValue = 1
        }

        let scale = CABasicAnimation(keyPath: "transform")
        scale.fromValue = CATransform3DMakeScale(0.92, 0.92, 1)
        scale.toValue = CATransform3DIdentity
        scale.duration = 0.55
        scale.timingFunction = CAMediaTimingFunction(name: .easeOut)
        iconView.layer?.add(scale, forKey: "splash.scaleIn")
        iconView.layer?.transform = CATransform3DIdentity

        // Subtle breathing pulse after entrance.
        DispatchQueue.main.asyncAfter(deadline: .now() + 0.65) { [weak self] in
            guard let self, let iconLayer = self.iconView?.layer else { return }
            let pulse = CABasicAnimation(keyPath: "transform")
            pulse.fromValue = CATransform3DIdentity
            pulse.toValue = CATransform3DMakeScale(1.03, 1.03, 1)
            pulse.duration = 0.9
            pulse.autoreverses = true
            pulse.repeatCount = .infinity
            pulse.timingFunction = CAMediaTimingFunction(name: .easeInEaseOut)
            iconLayer.add(pulse, forKey: "splash.pulse")
        }
    }

    private func startDots() {
        dotsTimer?.invalidate()
        dotsStep = 0
        dotsTimer = Timer.scheduledTimer(withTimeInterval: 0.45, repeats: true) { [weak self] _ in
            guard let self, let subtitleLabel else { return }
            self.dotsStep = (self.dotsStep + 1) % 4
            let dots = String(repeating: ".", count: self.dotsStep)
            // Keep the main subtitle stable; add subtle activity via ellipsis.
            subtitleLabel.stringValue = "Preparing your meetings workspace" + dots
        }
    }

    private func startProgress() {
        progressTimer?.invalidate()
        progressValue = 10
        setProgressUI(value: progressValue)

        // Animate progress smoothly for the 3s splash duration.
        let tick: TimeInterval = 0.06
        let target: Double = 100
        let duration: Double = 3.0
        let step = (target - progressValue) / (duration / tick)

        progressTimer = Timer.scheduledTimer(withTimeInterval: tick, repeats: true) { [weak self] timer in
            guard let self else { timer.invalidate(); return }
            self.progressValue = min(target, self.progressValue + step)
            self.setProgressUI(value: self.progressValue)
            if self.progressValue >= target - 0.01 {
                timer.invalidate()
            }
        }
    }

    private func setProgressUI(value: Double) {
        progressIndicator?.doubleValue = value
        percentLabel?.stringValue = "\(Int(round(value)))%"
    }

    private func applyTheme() {
        let isDark = view.effectiveAppearance.bestMatch(from: [.darkAqua, .aqua]) == .darkAqua
        theme = Self.makeTheme(isDark: isDark)

        rootBackground?.gradientLayer.colors = [theme.backgroundTop.cgColor, theme.backgroundBottom.cgColor]

        // Icon badge styling.
        if let badge = iconBadgeView {
            badge.layer?.backgroundColor = theme.iconBadgeFill.cgColor
        }

        titleLabel?.textColor = theme.titleColor
        subtitleLabel?.textColor = theme.subtitleColor
        statusLabel?.textColor = theme.statusColor
        percentLabel?.textColor = theme.subtitleColor

        if let progress = progressIndicator {
            progress.appearance = NSAppearance(named: theme.isDark ? .darkAqua : .aqua)
            // Prefer tinting when available; fall back gracefully if not.
            if #available(macOS 10.14, *) {
                progress.contentFilters = []
            }
        }
    }

    private static func makeTheme(isDark: Bool) -> Theme {
        if isDark {
            return Theme(
                isDark: true,
                backgroundTop: NSColor(calibratedRed: 9 / 255, green: 9 / 255, blue: 10 / 255, alpha: 1),
                backgroundBottom: NSColor(calibratedRed: 16 / 255, green: 16 / 255, blue: 18 / 255, alpha: 1),
                titleColor: NSColor(calibratedWhite: 0.98, alpha: 1),
                subtitleColor: NSColor(calibratedWhite: 0.78, alpha: 1),
                statusColor: NSColor(calibratedWhite: 0.66, alpha: 1),
                trackColor: NSColor.white.withAlphaComponent(0.10),
                fillColor: NSColor(calibratedRed: 96 / 255, green: 215 / 255, blue: 255 / 255, alpha: 1),
                iconBadgeFill: NSColor.white.withAlphaComponent(0.08)
            )
        }

        return Theme(
            isDark: false,
            backgroundTop: NSColor(calibratedWhite: 0.98, alpha: 1),
            backgroundBottom: NSColor(calibratedWhite: 0.92, alpha: 1),
            titleColor: NSColor(calibratedWhite: 0.10, alpha: 1),
            subtitleColor: NSColor(calibratedWhite: 0.34, alpha: 1),
            statusColor: NSColor(calibratedWhite: 0.42, alpha: 1),
            trackColor: NSColor.black.withAlphaComponent(0.10),
            fillColor: NSColor(calibratedRed: 0.18, green: 0.52, blue: 0.96, alpha: 1),
            iconBadgeFill: NSColor.black.withAlphaComponent(0.04)
        )
    }
}