/*
 * Atoll (DynamicIsland)
 * Copyright (C) 2024-2026 Atoll Contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/>.
 */

import AVFoundation
import Combine
import Defaults
import KeyboardShortcuts
import Sparkle
import SwiftUI
import SkyLightWindow

@main
struct DynamicNotchApp: App {
    @NSApplicationDelegateAdaptor(AppDelegate.self) var appDelegate
    @Default(.menubarIcon) var showMenuBarIcon
    @Environment(\.openWindow) var openWindow

    let updaterController: SPUStandardUpdaterController

    init() {
        updaterController = SPUStandardUpdaterController(
            startingUpdater: true, updaterDelegate: nil, userDriverDelegate: nil)

        // Initialize the settings window controller with the updater controller
        SettingsWindowController.shared.setUpdaterController(updaterController)
    }

    var body: some Scene {
        MenuBarExtra("dynamic.island", systemImage: "mountain.2.fill", isInserted: $showMenuBarIcon) {
            Button("Settings") {
                SettingsWindowController.shared.showWindow()
            }
            CheckForUpdatesView(updater: updaterController.updater)
            Divider()
            Button("Restart Atoll") {
                guard let bundleIdentifier = Bundle.main.bundleIdentifier else { return }

                let workspace = NSWorkspace.shared

                if let appURL = workspace.urlForApplication(withBundleIdentifier: bundleIdentifier)
                {

                    let configuration = NSWorkspace.OpenConfiguration()
                    configuration.createsNewApplicationInstance = true

                    workspace.openApplication(at: appURL, configuration: configuration)
                }

                NSApplication.shared.terminate(self)
            }
            Button("Quit", role: .destructive) {
                NSApplication.shared.terminate(self)
            }
            .keyboardShortcut(KeyEquivalent("Q"), modifiers: .command)
        }
    }

    @CommandsBuilder
    var commands: some Commands {
        CommandGroup(replacing: .appSettings) {
            Button("Settings…") {
                SettingsWindowController.shared.showWindow()
            }
        }
    }
}

final class FirstMouseHostingView<Content: View>: NSHostingView<Content> {
    override func acceptsFirstMouse(for event: NSEvent?) -> Bool {
        true
    }
}

extension AppDelegate {
    static var shared: AppDelegate? {
        NSApplication.shared.delegate as? AppDelegate
    }
}

class AppDelegate: NSObject, NSApplicationDelegate {
    var statusItem: NSStatusItem?
    var windows: [NSScreen: NSWindow] = [:]
    var viewModels: [NSScreen: DynamicIslandViewModel] = [:]
    var window: NSWindow?
    let vm: DynamicIslandViewModel = .init()
    @ObservedObject var coordinator = DynamicIslandViewCoordinator.shared
    var whatsNewWindow: NSWindow?
    var timer: Timer?
    let calendarManager = CalendarManager.shared
    let webcamManager = WebcamManager.shared
    let dndManager = DoNotDisturbManager.shared  // NEW: DND detection
    let bluetoothAudioManager = BluetoothAudioManager.shared  // NEW: Bluetooth audio detection
    let idleAnimationManager = IdleAnimationManager.shared  // NEW: Custom idle animations
    let downloadManager = DownloadManager.shared  // NEW: Chromium downloads detection
    let lockScreenPanelManager = LockScreenPanelManager.shared  // NEW: Lock screen music panel
    let mediaControlsStateCoordinator = MediaControlsStateCoordinator.shared
    let systemTimerBridge = SystemTimerBridge.shared
    let extensionXPCServiceHost = ExtensionXPCServiceHost.shared
    let extensionRPCServer = ExtensionRPCServer.shared
    var closeNotchWorkItem: DispatchWorkItem?
    private var previousScreens: [NSScreen]?
    private var onboardingWindowController: NSWindowController?
    private var cancellables = Set<AnyCancellable>()
    private var windowsHiddenForLock = false
    private var optionalShortcutHandlersRegistered = false
    private weak var focusWithoutDevToolsMenuItem: NSMenuItem?
    private weak var focusUseDevToolsMenuItem: NSMenuItem?
    
    // Debouncing mechanism for window size updates
    private var windowSizeUpdateWorkItem: DispatchWorkItem?
//    let calendarManager = CalendarManager.shared
//    let webcamManager = WebcamManager.shared
//    var closeNotchWorkItem: DispatchWorkItem?
//    private var previousScreens: [NSScreen]?
//    private var onboardingWindowController: NSWindowController?
//    private var cancellables = Set<AnyCancellable>()
//    
//    // Debouncing mechanism for window size updates
//    private var windowSizeUpdateWorkItem: DispatchWorkItem?
    
    private func debouncedUpdateWindowSize() {
        // Cancel any existing work item
        windowSizeUpdateWorkItem?.cancel()
        
        // Create new work item with delay
        let workItem = DispatchWorkItem { [weak self] in
            self?.updateWindowSizeIfNeeded()
        }
        
        // Store reference and schedule
        windowSizeUpdateWorkItem = workItem
        DispatchQueue.main.asyncAfter(deadline: .now() + 0.15, execute: workItem)
    }

    func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
        return false
    }

    func applicationDidBecomeActive(_ notification: Notification) {
        installTopMenuItemsIfNeeded()
    }

    func application(_ application: NSApplication, open urls: [URL]) {
        _ = handleIncomingShelfURLs(urls)
    }

    func application(_ sender: NSApplication, openFile filename: String) -> Bool {
        handleIncomingShelfURLs([URL(fileURLWithPath: filename)])
    }

    private func handleIncomingShelfURLs(_ urls: [URL]) -> Bool {
        let fileURLs = urls.filter(\.isFileURL)
        guard !fileURLs.isEmpty else { return false }

        Task { @MainActor [weak self] in
            let items = await ShelfDropService.items(from: fileURLs)
            guard !items.isEmpty else { return }

            ShelfStateViewModel.shared.add(items)
            self?.coordinator.currentView = .shelf
        }

        return true
    }
    
    /// Setup observers for music player state changes to restart AudioTap capture
    private func setupAudioTapMusicObservers() {
        // Listen for app launches to restart capture when music apps are opened
        let targetBundleIDs = [
            "com.apple.Music",
            "com.spotify.client",
            "com.amazon.music",
            "com.apple.Safari",
            "com.tidal.desktop",
            "tv.plex.plexamp",
            "com.roon.Roon",
            "com.audirvana.Audirvana-Studio",
            "com.vox.vox",
            "com.coppertino.Vox",
        ]
        
        NSWorkspace.shared.notificationCenter.addObserver(
            forName: NSWorkspace.didLaunchApplicationNotification,
            object: nil,
            queue: .main
        ) { notification in
            guard let app = notification.userInfo?[NSWorkspace.applicationUserInfoKey] as? NSRunningApplication,
                  let bundleID = app.bundleIdentifier,
                  targetBundleIDs.contains(bundleID) else { return }
            
            // A target music app was launched, restart capture to include it
            if Defaults[.enableRealTimeWaveform] {
                print("🎵 [AudioTap] Music app launched: \(bundleID), restarting capture...")
                // Give the app a moment to fully launch
                DispatchQueue.main.asyncAfter(deadline: .now() + 2.0) {
                    AudioTap.shared.restartCapture()
                }
            }
        }
        
        // Also observe app terminations to restart capture
        NSWorkspace.shared.notificationCenter.addObserver(
            forName: NSWorkspace.didTerminateApplicationNotification,
            object: nil,
            queue: .main
        ) { notification in
            guard let app = notification.userInfo?[NSWorkspace.applicationUserInfoKey] as? NSRunningApplication,
                  let bundleID = app.bundleIdentifier,
                  targetBundleIDs.contains(bundleID) else { return }
            
            // A target music app was terminated, restart capture to update the list
            if Defaults[.enableRealTimeWaveform] {
                print("🎵 [AudioTap] Music app terminated: \(bundleID), restarting capture...")
                AudioTap.shared.restartCapture()
            }
        }
    }
    
    func applicationWillTerminate(_ notification: Notification) {
        let userInfo: [String: Any] = [
            AtollDistributedNotifications.UserInfoKey.sourcePID: NSNumber(value: ProcessInfo.processInfo.processIdentifier)
        ]
        DistributedNotificationCenter.default().postNotificationName(
            AtollDistributedNotifications.didBecomeIdle,
            object: nil,
            userInfo: userInfo,
            deliverImmediately: true
        )

        // Cancel any pending window size updates
        windowSizeUpdateWorkItem?.cancel()
        NotificationCenter.default.removeObserver(self)
        extensionXPCServiceHost.stop()
        extensionRPCServer.stop()
        
        // Stop AudioTap capture
        AudioTap.shared.stopCapture()

        // Restore Lunar's native OSD if integration was active
        LunarManager.shared.appWillTerminate()
    }
    
    @objc func onScreenLocked(_: Notification) {
        print("Screen locked")
        hideWindowsForLock()
    }

    @objc func onScreenUnlocked(_: Notification) {
        print("Screen unlocked")
        DispatchQueue.main.asyncAfter(deadline: .now() + 1.0) { [weak self] in
            guard let self = self else { return }
            self.restoreWindowsAfterLock()
            self.adjustWindowPosition(changeAlpha: true)
        }
    }

    private func hideWindowsForLock() {
        guard !windowsHiddenForLock else { return }
        windowsHiddenForLock = true

        if Defaults[.showOnAllDisplays] {
            for window in windows.values {
                window.alphaValue = 0
                window.orderOut(nil)
            }
        } else if let window = window {
            window.alphaValue = 0
            window.orderOut(nil)
        }
    }

    private func restoreWindowsAfterLock() {
        guard windowsHiddenForLock else { return }
        windowsHiddenForLock = false

        if Defaults[.showOnAllDisplays] {
            for window in windows.values {
                window.orderFrontRegardless()
                window.alphaValue = 1
            }
        } else if let window = window {
            window.orderFrontRegardless()
            window.alphaValue = 1
        }
    }
    
    private func cleanupWindows(shouldInvert: Bool = false) {
        if shouldInvert ? !Defaults[.showOnAllDisplays] : Defaults[.showOnAllDisplays] {
            for window in windows.values {
                window.close()
                NotchSpaceManager.shared.notchSpace.windows.remove(window)
            }
            windows.removeAll()
            viewModels.removeAll()
        } else if let window = window {
            window.close()
            NotchSpaceManager.shared.notchSpace.windows.remove(window)
            self.window = nil
        }
    }

    private func createDynamicIslandWindow(for screen: NSScreen, with viewModel: DynamicIslandViewModel)
        -> NSWindow
    {
        // Use the current required size instead of always using openNotchSize
        let baseSize = calculateRequiredNotchSize()
        let requiredSize = adjustedSizeForScreen(baseSize, screen: screen)
        
        let window = DynamicIslandWindow(
            contentRect: NSRect(
                x: 0, y: 0, width: requiredSize.width, height: requiredSize.height),
            styleMask: [.borderless, .nonactivatingPanel, .utilityWindow, .hudWindow],
            backing: .buffered,
            defer: false
        )

        window.animationBehavior = .none
        
        window.contentView = FirstMouseHostingView(
            rootView: ContentView()
                .environmentObject(viewModel)
                .environmentObject(webcamManager)
                //.moveToSky()
        )
        
        window.orderFrontRegardless()
        NotchSpaceManager.shared.notchSpace.windows.insert(window)
        //SkyLightOperator.shared.delegateWindow(window)
        return window
    }

    private func positionWindow(_ window: NSWindow, on screen: NSScreen, changeAlpha: Bool = false)
    {
        if changeAlpha {
            window.alphaValue = 0
        }
        
        // Use the same centering logic as updateWindowSizeIfNeeded()
        let screenFrame = screen.frame
        let centerX = screenFrame.origin.x + (screenFrame.width / 2)
        let newX = centerX - (window.frame.width / 2)
        let newY = screenFrame.origin.y + screenFrame.height - window.frame.height
        
        window.setFrame(NSRect(
            x: newX,
            y: newY,
            width: window.frame.width,
            height: window.frame.height
        ), display: false)
        
        if changeAlpha {
            window.alphaValue = 1
        }
    }
    
    private func updateWindowSizeIfNeeded() {
        // Calculate required size based on current state
        let requiredSize = calculateRequiredNotchSize()
        let animateResize = shouldAnimateResize(for: requiredSize)
        resizeWindows(to: requiredSize, animated: animateResize, force: false)
    }

    private func updateWindowSizeForTabSwitch() {
        let requiredSize = calculateRequiredNotchSize()
        resizeWindows(to: requiredSize, animated: false, force: true)
    }
    
    private func calculateRequiredNotchSize() -> CGSize {
        // Check if inline sneak peek is showing and notch is closed
        let isInlineSneakPeekActive = vm.notchState == .closed && 
                                      coordinator.expandingView.show && 
                                      (coordinator.expandingView.type == .music || coordinator.expandingView.type == .timer) && 
                                      Defaults[.enableSneakPeek] && 
                                      Defaults[.sneakPeekStyles] == .inline
        
        // If inline sneak peek is active, use a wider width to accommodate the expanded content
        if isInlineSneakPeekActive {
            // Calculate required width for inline sneak peek:
            // Album art (~32) + Middle section (380) + Visualizer (~32) + horizontal padding (28) + clip shape margin (12)
            let inlineSneakPeekWidth: CGFloat = 460
            return CGSize(width: inlineSneakPeekWidth, height: vm.effectiveClosedNotchHeight)
        }
        
        // Use minimalistic or normal size based on settings
        var baseSize = Defaults[.enableMinimalisticUI] ? minimalisticOpenNotchSize : openNotchSize
        
        // Use a consistent height for different view types
        if coordinator.currentView == .timer {
            baseSize.height = 250 // Extra space for timer presets
        } else if coordinator.currentView == .notes || coordinator.currentView == .clipboard {
            let preferredHeight = coordinator.notesLayoutState.preferredHeight
            baseSize.height = max(baseSize.height, preferredHeight)
        } else if coordinator.currentView == .terminal {
            let screenHeight = NSScreen.main?.visibleFrame.height ?? 800
            let maxFraction = Defaults[.terminalMaxHeightFraction]
            baseSize.height = min(screenHeight * maxFraction, max(300, screenHeight * maxFraction))
        }
        
        let adjustedContentSize = statsAdjustedNotchSize(
            from: baseSize,
            isStatsTabActive: coordinator.currentView == .stats,
            secondRowProgress: coordinator.statsSecondRowExpansion
        )
        var result = addShadowPadding(
            to: adjustedContentSize,
            isMinimalistic: Defaults[.enableMinimalisticUI]
        )

        return result
    }

    /// Adjusts a base notch size for a specific screen by adding Dynamic Island
    /// shadow insets and top-offset only when the screen lacks a physical notch
    /// and the user has chosen the Dynamic Island style.
    private func adjustedSizeForScreen(_ baseSize: CGSize, screen: NSScreen) -> CGSize {
        guard shouldUseDynamicIslandMode(for: screen.localizedName) else {
            return baseSize
        }
        var adjusted = baseSize
        adjusted.width += dynamicIslandShadowInset * 2
        adjusted.height += dynamicIslandTopOffset
        return adjusted
    }

    func ensureWindowSize(_ size: CGSize, animated: Bool, force: Bool = false) {
        resizeWindows(to: size, animated: animated, force: force)
    }

    private func resizeWindows(to size: CGSize, animated: Bool, force: Bool) {
        guard size.width > 0, size.height > 0 else { return }

        if Defaults[.showOnAllDisplays] {
            for (screen, window) in windows {
                let screenSize = adjustedSizeForScreen(size, screen: screen)
                if force || window.frame.size != screenSize {
                    resizeWindow(window, on: screen, to: screenSize, animated: animated)
                }
            }
        } else if let window {
            let screen = window.screen ?? NSScreen.screens.first { $0.frame.intersects(window.frame) } ?? NSScreen.main ?? NSScreen.screens.first
            guard let screen else { return }
            let screenSize = adjustedSizeForScreen(size, screen: screen)
            if force || window.frame.size != screenSize {
                resizeWindow(window, on: screen, to: screenSize, animated: animated)
            }
        }
    }

    private func resizeWindow(_ window: NSWindow, on screen: NSScreen, to size: CGSize, animated: Bool) {
        let screenFrame = screen.frame
        // Clamp width to screen width so the notch never extends beyond screen edges on scaled displays
        let clampedWidth = min(size.width, screenFrame.width)
        let clampedHeight = min(size.height, screenFrame.height)
        let centerX = screenFrame.midX
        let newX = centerX - (clampedWidth / 2)
        let newY = screenFrame.origin.y + screenFrame.height - clampedHeight
        let targetFrame = NSRect(x: newX, y: newY, width: clampedWidth, height: clampedHeight)

        window.setFrame(targetFrame, display: true)
    }

    private func shouldAnimateResize(for newSize: CGSize) -> Bool {
        if Defaults[.enableMinimalisticUI] && !ReminderLiveActivityManager.shared.activeWindowReminders.isEmpty {
            return false
        }
        return true
    }
    
    func applicationDidFinishLaunching(_ notification: Notification) {
        let userInfo: [String: Any] = [
            AtollDistributedNotifications.UserInfoKey.sourcePID: NSNumber(value: ProcessInfo.processInfo.processIdentifier)
        ]
        DistributedNotificationCenter.default().postNotificationName(
            AtollDistributedNotifications.didBecomeActive,
            object: nil,
            userInfo: userInfo,
            deliverImmediately: true
        )

        LockScreenLiveActivityWindowManager.shared.configure(viewModel: vm)
        LockScreenManager.shared.configure(viewModel: vm)
        extensionXPCServiceHost.start()
        extensionRPCServer.start()
        
        // Migrate legacy progress bar settings
        Defaults.Keys.migrateProgressBarStyle()
        Defaults.Keys.migrateMusicAuxControls()
        Defaults.Keys.migrateMusicControlSlots()
        Defaults.Keys.migrateCapsLockTintMode()
        Defaults.Keys.migrateThirdPartyDDCIntegration()

        Defaults.publisher(.enableThirdPartyDDCIntegration, options: [])
            .sink { _ in
                Defaults.Keys.syncLegacyThirdPartyDDCKeys()
            }
            .store(in: &cancellables)

        Defaults.publisher(.thirdPartyDDCProvider, options: [])
            .sink { _ in
                Defaults.Keys.syncLegacyThirdPartyDDCKeys()
            }
            .store(in: &cancellables)
        
        // Initialize idle animations (load bundled + built-in face)
        idleAnimationManager.initializeDefaultAnimations()

        applySelectedAppIcon()
        installTopMenuItemsIfNeeded()

        Defaults.publisher(.focusMonitoringMode, options: [])
            .sink { [weak self] _ in
                self?.updateFocusMenuState()
            }
            .store(in: &cancellables)
        
        // Setup SystemHUD Manager
        SystemHUDManager.shared.setup(coordinator: coordinator)

        // Setup BetterDisplay integration
        BetterDisplayManager.shared.configure(coordinator: coordinator)

        // Setup Lunar integration
        LunarManager.shared.configure(coordinator: coordinator)
        
        // Setup ScreenRecording Manager
        if Defaults[.enableScreenRecordingDetection] {
            ScreenRecordingManager.shared.startMonitoring()
        }
        
        // Setup Do Not Disturb Manager
        if Defaults[.enableDoNotDisturbDetection] {
            dndManager.startMonitoring()
        }

        // Setup Privacy Indicator Manager (camera and microphone monitoring)
        PrivacyIndicatorManager.shared.startMonitoring()
        
        // Setup Real-time Audio Waveform capture if enabled
        if Defaults[.enableRealTimeWaveform] {
            Task {
                await AudioTap.shared.startCapture()
            }
            setupAudioTapMusicObservers()
        }
        
        // Observe enableRealTimeWaveform changes
        Defaults.publisher(.enableRealTimeWaveform, options: [])
            .sink { [weak self] change in
                if change.newValue {
                    Task {
                        await AudioTap.shared.startCapture()
                    }
                    self?.setupAudioTapMusicObservers()
                } else {
                    AudioTap.shared.stopCapture()
                }
            }
            .store(in: &cancellables)
        
        // Observe tab changes - use immediate resize to keep the notch pinned
        // Deferred to next run loop tick because @Published fires on willSet,
        // so coordinator.currentView still holds the OLD value at emission time.
        coordinator.$currentView.sink { [weak self] _ in
            DispatchQueue.main.async {
                self?.updateWindowSizeForTabSwitch()
            }
        }.store(in: &cancellables)

        coordinator.$notesLayoutState
            .removeDuplicates()
            .sink { [weak self] _ in
                self?.updateWindowSizeIfNeeded()
            }
            .store(in: &cancellables)
        
        // Observe stats settings changes - use debounced updates
        Defaults.publisher(.enableStatsFeature, options: []).sink { [weak self] _ in
            self?.debouncedUpdateWindowSize()
        }.store(in: &cancellables)
        
        Defaults.publisher(.showCpuGraph, options: []).sink { [weak self] _ in
            self?.debouncedUpdateWindowSize()
        }.store(in: &cancellables)
        
        Defaults.publisher(.showMemoryGraph, options: []).sink { [weak self] _ in
            self?.debouncedUpdateWindowSize()
        }.store(in: &cancellables)
        
        Defaults.publisher(.showGpuGraph, options: []).sink { [weak self] _ in
            self?.debouncedUpdateWindowSize()
        }.store(in: &cancellables)
        
        Defaults.publisher(.showNetworkGraph, options: []).sink { [weak self] _ in
            self?.debouncedUpdateWindowSize()
        }.store(in: &cancellables)
        
        Defaults.publisher(.showDiskGraph, options: []).sink { [weak self] _ in
            self?.debouncedUpdateWindowSize()
        }.store(in: &cancellables)

        Defaults.publisher(.openNotchWidth, options: []).sink { [weak self] _ in
            self?.debouncedUpdateWindowSize()
        }.store(in: &cancellables)

        // Observe terminal settings changes
        Defaults.publisher(.enableTerminalFeature, options: []).sink { [weak self] _ in
            self?.debouncedUpdateWindowSize()
        }.store(in: &cancellables)

        Defaults.publisher(.terminalMaxHeightFraction, options: []).sink { [weak self] _ in
            self?.debouncedUpdateWindowSize()
        }.store(in: &cancellables)

        MemoryUsageMonitor.shared.startMonitoring()

        ReminderLiveActivityManager.shared.$activeWindowReminders
            .receive(on: RunLoop.main)
            .sink { [weak self] _ in
                self?.debouncedUpdateWindowSize()
            }
            .store(in: &cancellables)

        TimerManager.shared.$activeSource
            .combineLatest(TimerManager.shared.$isTimerActive)
            .receive(on: RunLoop.main)
            .sink { [weak self] _ in
                self?.debouncedUpdateWindowSize()
            }
            .store(in: &cancellables)

        Defaults.publisher(.enableShortcuts, options: []).sink { [weak self] change in
            Task { @MainActor [weak self] in
                guard let self else { return }
                KeyboardShortcuts.isEnabled = change.newValue
                self.updateFeatureShortcutAvailability()
            }
        }.store(in: &cancellables)

        Defaults.publisher(.enableTimerFeature, options: []).sink { [weak self] _ in
            Task { @MainActor [weak self] in
                self?.updateFeatureShortcutAvailability()
            }
        }.store(in: &cancellables)

        Defaults.publisher(.enableClipboardManager, options: []).sink { [weak self] _ in
            Task { @MainActor [weak self] in
                self?.updateFeatureShortcutAvailability()
            }
        }.store(in: &cancellables)

        Defaults.publisher(.enableColorPickerFeature, options: []).sink { [weak self] _ in
            Task { @MainActor [weak self] in
                self?.updateFeatureShortcutAvailability()
            }
        }.store(in: &cancellables)

        Defaults.publisher(.enableScreenAssistant, options: []).sink { [weak self] _ in
            Task { @MainActor [weak self] in
                self?.updateFeatureShortcutAvailability()
            }
        }.store(in: &cancellables)
        
        // Observe minimalistic UI setting changes - trigger window resize
        Defaults.publisher(.enableMinimalisticUI, options: []).sink { [weak self] _ in
            // Update window size IMMEDIATELY (no debouncing) to prevent position shift
            self?.updateWindowSizeIfNeeded()
        }.store(in: &cancellables)
        
        // Observe screen recording settings changes
        Defaults.publisher(.enableScreenRecordingDetection, options: []).sink { _ in
            if Defaults[.enableScreenRecordingDetection] {
                ScreenRecordingManager.shared.startMonitoring()
            } else {
                ScreenRecordingManager.shared.stopMonitoring()
            }
        }.store(in: &cancellables)
        
        Defaults.publisher(.enableDoNotDisturbDetection, options: []).sink { [weak self] _ in
            guard let self else { return }

            if Defaults[.enableDoNotDisturbDetection] {
                self.dndManager.startMonitoring()
            } else {
                self.dndManager.stopMonitoring()
            }
        }.store(in: &cancellables)

        // Note: Polling setting removed - now uses event-driven private API detection only

        NotificationCenter.default.addObserver(
            self,
            selector: #selector(screenConfigurationDidChange),
            name: NSApplication.didChangeScreenParametersNotification,
            object: nil
        )

        NotificationCenter.default.addObserver(
            forName: Notification.Name.selectedScreenChanged, object: nil, queue: nil
        ) { [weak self] _ in
            self?.adjustWindowPosition(changeAlpha: true)
        }

        NotificationCenter.default.addObserver(
            forName: Notification.Name.notchHeightChanged, object: nil, queue: nil
        ) { [weak self] _ in
            self?.adjustWindowPosition()
        }

        NotificationCenter.default.addObserver(
            forName: Notification.Name.automaticallySwitchDisplayChanged, object: nil, queue: nil
        ) { [weak self] _ in
            guard let self = self, let window = self.window else { return }
            DispatchQueue.main.async {
                window.alphaValue =
                    self.coordinator.selectedScreen == self.coordinator.preferredScreen ? 1 : 0
            }
        }

        NotificationCenter.default.addObserver(
            forName: Notification.Name.showOnAllDisplaysChanged, object: nil, queue: nil
        ) { [weak self] _ in
            guard let self = self else { return }
            self.cleanupWindows(shouldInvert: true)

            if !Defaults[.showOnAllDisplays] {
                let viewModel = self.vm
                let window = self.createDynamicIslandWindow(
                    for: NSScreen.main ?? NSScreen.screens.first!, with: viewModel)
                self.window = window
                self.adjustWindowPosition(changeAlpha: true)
            } else {
                self.adjustWindowPosition()
            }
        }

        DistributedNotificationCenter.default().addObserver(
            self, selector: #selector(onScreenLocked(_:)),
            name: NSNotification.Name(rawValue: "com.apple.screenIsLocked"), object: nil)
        DistributedNotificationCenter.default().addObserver(
            self, selector: #selector(onScreenUnlocked(_:)),
            name: NSNotification.Name(rawValue: "com.apple.screenIsUnlocked"), object: nil)

        KeyboardShortcuts.onKeyDown(for: .toggleSneakPeek) { [weak self] in
            guard let self = self else { return }
            guard Defaults[.enableShortcuts] else { return }

            self.coordinator.toggleSneakPeek(
                status: !self.coordinator.sneakPeek.show,
                type: .music,
                duration: 3.0
            )
        }

        KeyboardShortcuts.onKeyDown(for: .toggleNotchOpen) { [weak self] in
            guard let self = self else { return }
            guard Defaults[.enableShortcuts] else { return }

            let mouseLocation = NSEvent.mouseLocation

            var viewModel = self.vm

            if Defaults[.showOnAllDisplays] {
                for screen in NSScreen.screens {
                    if screen.frame.contains(mouseLocation) {
                        if let screenViewModel = self.viewModels[screen] {
                            viewModel = screenViewModel
                            break
                        }
                    }
                }
            }

            self.closeNotchWorkItem?.cancel()
            self.closeNotchWorkItem = nil

            switch viewModel.notchState {
            case .closed:
                viewModel.open()

                let workItem = DispatchWorkItem { [weak viewModel] in
                    viewModel?.close()
                }
                self.closeNotchWorkItem = workItem

                DispatchQueue.main.asyncAfter(deadline: .now() + 3.0, execute: workItem)
            case .open:
                viewModel.close()
            }
        }

        KeyboardShortcuts.isEnabled = Defaults[.enableShortcuts]
        registerOptionalShortcutHandlers()
        updateFeatureShortcutAvailability()

        if !Defaults[.showOnAllDisplays] {
            let viewModel = self.vm
            let window = createDynamicIslandWindow(
                for: NSScreen.main ?? NSScreen.screens.first!, with: viewModel)
            self.window = window
            adjustWindowPosition(changeAlpha: true)
        } else {
            adjustWindowPosition(changeAlpha: true)
        }
        
        if coordinator.firstLaunch {
            DispatchQueue.main.async {
                self.showOnboardingWindow()
            }
            playWelcomeSound()
        }
        
        previousScreens = NSScreen.screens

        if Defaults[.enableLockScreenWeatherWidget] {
            LockScreenWeatherManager.shared.prepareLocationAccess()
            Task { @MainActor in
                await LockScreenWeatherManager.shared.refresh(force: true)
            }
        }

        // Warm up the lock screen timer widget manager so it can observe timer/default
        // changes immediately instead of waiting for the first lock event.
        let timerWidgetManager = LockScreenTimerWidgetManager.shared
        timerWidgetManager.handleLockStateChange(isLocked: LockScreenManager.shared.currentLockStatus)

    }

    private func installTopMenuItemsIfNeeded() {
        guard let mainMenu = NSApp.mainMenu else { return }
        if mainMenu.items.contains(where: { $0.identifier?.rawValue == "Atoll.Focus.Menu" }) {
            updateFocusMenuState()
            return
        }

        let insertionIndex = preferredMenuInsertionIndex(in: mainMenu)

        let focusMenuItem = NSMenuItem(title: "Focus", action: nil, keyEquivalent: "")
        focusMenuItem.identifier = NSUserInterfaceItemIdentifier("Atoll.Focus.Menu")
        let focusSubmenu = NSMenu(title: "Focus")

        let withoutDevTools = NSMenuItem(
            title: "Use without DevTools",
            action: #selector(selectFocusWithoutDevTools),
            keyEquivalent: ""
        )
        withoutDevTools.target = self

        let useDevTools = NSMenuItem(
            title: "Use DevTools",
            action: #selector(selectFocusUseDevTools),
            keyEquivalent: ""
        )
        useDevTools.target = self

        focusSubmenu.addItem(withoutDevTools)
        focusSubmenu.addItem(useDevTools)
        focusMenuItem.submenu = focusSubmenu
        mainMenu.insertItem(focusMenuItem, at: insertionIndex)

        focusWithoutDevToolsMenuItem = withoutDevTools
        focusUseDevToolsMenuItem = useDevTools

        let accessibilityMenuItem = NSMenuItem(title: "Accessibility", action: nil, keyEquivalent: "")
        accessibilityMenuItem.identifier = NSUserInterfaceItemIdentifier("Atoll.Accessibility.Menu")
        let accessibilitySubmenu = NSMenu(title: "Accessibility")

        let requestAccessibility = NSMenuItem(
            title: "Request Accessibility Access",
            action: #selector(requestAccessibilityAccess),
            keyEquivalent: ""
        )
        requestAccessibility.target = self

        let openAccessibility = NSMenuItem(
            title: "Open Accessibility Settings",
            action: #selector(openAccessibilitySettings),
            keyEquivalent: ""
        )
        openAccessibility.target = self

        accessibilitySubmenu.addItem(requestAccessibility)
        accessibilitySubmenu.addItem(openAccessibility)
        accessibilityMenuItem.submenu = accessibilitySubmenu
        mainMenu.insertItem(accessibilityMenuItem, at: insertionIndex + 1)

        let permissionsMenuItem = NSMenuItem(title: "Permissions", action: nil, keyEquivalent: "")
        permissionsMenuItem.identifier = NSUserInterfaceItemIdentifier("Atoll.Permissions.Menu")
        let permissionsSubmenu = NSMenu(title: "Permissions")

        let requestFullDisk = NSMenuItem(
            title: "Request Full Disk Access",
            action: #selector(requestFullDiskAccess),
            keyEquivalent: ""
        )
        requestFullDisk.target = self

        let openFullDisk = NSMenuItem(
            title: "Open Full Disk Access Settings",
            action: #selector(openFullDiskAccessSettings),
            keyEquivalent: ""
        )
        openFullDisk.target = self

        let openDevTools = NSMenuItem(
            title: "Open Developer Tools Settings",
            action: #selector(openDeveloperToolsSettingsFromMenu),
            keyEquivalent: ""
        )
        openDevTools.target = self

        permissionsSubmenu.addItem(requestFullDisk)
        permissionsSubmenu.addItem(openFullDisk)
        permissionsSubmenu.addItem(NSMenuItem.separator())
        permissionsSubmenu.addItem(openDevTools)
        permissionsMenuItem.submenu = permissionsSubmenu
        mainMenu.insertItem(permissionsMenuItem, at: insertionIndex + 2)

        updateFocusMenuState()
    }

    private func preferredMenuInsertionIndex(in mainMenu: NSMenu) -> Int {
        if let index = mainMenu.items.firstIndex(where: { $0.title == "Window" }) {
            return index
        }
        if let index = mainMenu.items.firstIndex(where: { $0.title == "Help" }) {
            return index
        }
        return max(mainMenu.numberOfItems, 0)
    }

    private func updateFocusMenuState() {
        let mode = Defaults[.focusMonitoringMode]
        focusWithoutDevToolsMenuItem?.state = mode == .withoutDevTools ? .on : .off
        focusUseDevToolsMenuItem?.state = mode == .useDevTools ? .on : .off
    }

    @objc private func selectFocusWithoutDevTools() {
        Defaults[.focusMonitoringMode] = .withoutDevTools
        updateFocusMenuState()
    }

    @objc private func selectFocusUseDevTools() {
        Defaults[.focusMonitoringMode] = .useDevTools
        updateFocusMenuState()
    }

    @objc private func requestAccessibilityAccess() {
        AccessibilityPermissionStore.shared.requestAuthorizationPrompt()
    }

    @objc private func openAccessibilitySettings() {
        AccessibilityPermissionStore.shared.openSystemSettings()
    }

    @objc private func requestFullDiskAccess() {
        FullDiskAccessPermissionStore.shared.requestAccessPrompt()
    }

    @objc private func openFullDiskAccessSettings() {
        FullDiskAccessPermissionStore.shared.openSystemSettings()
    }

    @objc private func openDeveloperToolsSettingsFromMenu() {
        let urls = [
            "x-apple.systempreferences:com.apple.preference.security?Privacy_DevTools",
            "x-apple.systempreferences:com.apple.preference.security"
        ]

        for candidate in urls {
            guard let url = URL(string: candidate) else { continue }
            if NSWorkspace.shared.open(url) {
                return
            }
        }
    }

    private func registerOptionalShortcutHandlers() {
        guard !optionalShortcutHandlersRegistered else { return }
        optionalShortcutHandlersRegistered = true

        KeyboardShortcuts.onKeyDown(for: .startDemoTimer) {
            guard Defaults[.enableShortcuts], Defaults[.enableTimerFeature] else { return }
            TimerManager.shared.startDemoTimer(duration: 300)
        }

        KeyboardShortcuts.onKeyDown(for: .clipboardHistoryPanel) { [weak self] in
            guard let self else { return }
            guard Defaults[.enableShortcuts], Defaults[.enableClipboardManager] else { return }

            if !ClipboardManager.shared.isMonitoring {
                ClipboardManager.shared.startMonitoring()
            }

            switch Defaults[.clipboardDisplayMode] {
            case .panel:
                ClipboardPanelManager.shared.toggleClipboardPanel()
            case .popover:
                if vm.notchState == .closed {
                    vm.open()
                    DispatchQueue.main.asyncAfter(deadline: .now() + 0.3) {
                        NotificationCenter.default.post(name: NSNotification.Name("ToggleClipboardPopover"), object: nil)
                    }
                } else {
                    NotificationCenter.default.post(name: NSNotification.Name("ToggleClipboardPopover"), object: nil)
                }
            case .separateTab:
                if vm.notchState == .closed {
                    vm.open()
                    coordinator.currentView = .notes
                } else {
                    if coordinator.currentView == .notes {
                        vm.close()
                    } else {
                        coordinator.currentView = .notes
                    }
                }
            }
        }

        KeyboardShortcuts.onKeyDown(for: .colorPickerPanel) {
            guard Defaults[.enableShortcuts], Defaults[.enableColorPickerFeature] else { return }
            ColorPickerPanelManager.shared.toggleColorPickerPanel()
        }

        KeyboardShortcuts.onKeyDown(for: .toggleTerminalTab) { [weak self] in
            guard let self else { return }
            guard Defaults[.enableShortcuts], Defaults[.enableTerminalFeature] else { return }

            if vm.notchState == .closed {
                closeNotchWorkItem?.cancel()
                closeNotchWorkItem = nil
                vm.open()
                coordinator.currentView = .terminal
            } else {
                if coordinator.currentView == .terminal {
                    vm.close()
                } else {
                    closeNotchWorkItem?.cancel()
                    closeNotchWorkItem = nil
                    coordinator.currentView = .terminal
                }
            }
        }

        KeyboardShortcuts.onKeyDown(for: .screenAssistantPanel) { [weak self] in
            guard let self else { return }
            guard Defaults[.enableShortcuts], Defaults[.enableScreenAssistant] else { return }

            switch Defaults[.screenAssistantDisplayMode] {
            case .panel:
                ScreenAssistantPanelManager.shared.toggleScreenAssistantPanel()
            case .popover:
                if vm.notchState == .closed {
                    vm.open()
                    DispatchQueue.main.asyncAfter(deadline: .now() + 0.3) {
                        NotificationCenter.default.post(name: NSNotification.Name("ToggleScreenAssistantPopover"), object: nil)
                    }
                } else {
                    NotificationCenter.default.post(name: NSNotification.Name("ToggleScreenAssistantPopover"), object: nil)
                }
            }
        }
    }

    @MainActor
    private func updateFeatureShortcutAvailability() {
        updateShortcut(.startDemoTimer, isEnabled: Defaults[.enableShortcuts] && Defaults[.enableTimerFeature])
        updateShortcut(.clipboardHistoryPanel, isEnabled: Defaults[.enableShortcuts] && Defaults[.enableClipboardManager])
        updateShortcut(.colorPickerPanel, isEnabled: Defaults[.enableShortcuts] && Defaults[.enableColorPickerFeature])
        updateShortcut(.screenAssistantPanel, isEnabled: Defaults[.enableShortcuts] && Defaults[.enableScreenAssistant])
        updateShortcut(.toggleTerminalTab, isEnabled: Defaults[.enableShortcuts] && Defaults[.enableTerminalFeature])
    }

    @MainActor
    private func updateShortcut(_ name: KeyboardShortcuts.Name, isEnabled: Bool) {
        if isEnabled {
            KeyboardShortcuts.enable(name)
        } else {
            KeyboardShortcuts.disable(name)
        }
    }
    
    func playWelcomeSound() {
        let audioPlayer = AudioPlayer()
        audioPlayer.play(fileName: "dynamic", fileExtension: "m4a")
    }
    
    func deviceHasNotch() -> Bool {
        if #available(macOS 12.0, *) {
            for screen in NSScreen.screens {
                if screen.safeAreaInsets.top > 0 {
                    return true
                }
            }
        }
        return false
    }
    
    @objc func screenConfigurationDidChange() {
        let currentScreens = NSScreen.screens

        let screensChanged =
            currentScreens.count != previousScreens?.count
            || Set(currentScreens.map { $0.localizedName })
                != Set(previousScreens?.map { $0.localizedName } ?? [])
            || Set(currentScreens.map { $0.frame }) != Set(previousScreens?.map { $0.frame } ?? [])

        previousScreens = currentScreens
        
        if screensChanged {
            DispatchQueue.main.async { [weak self] in
                self?.cleanupWindows()
                self?.adjustWindowPosition()
            }
        }
    }
    
    @objc func adjustWindowPosition(changeAlpha: Bool = false) {
        if Defaults[.showOnAllDisplays] {
            let currentScreens = Set(NSScreen.screens)
            
            for screen in windows.keys where !currentScreens.contains(screen) {
                if let window = windows[screen] {
                    window.close()
                    NotchSpaceManager.shared.notchSpace.windows.remove(window)
                    windows.removeValue(forKey: screen)
                    viewModels.removeValue(forKey: screen)
                }
            }
            
            for screen in currentScreens {
                if windows[screen] == nil {
                    let viewModel = DynamicIslandViewModel(screen: screen.localizedName)
                    let window = createDynamicIslandWindow(for: screen, with: viewModel)
                    
                    windows[screen] = window
                    viewModels[screen] = viewModel
                }
                
                if let window = windows[screen], let viewModel = viewModels[screen] {
                    positionWindow(window, on: screen, changeAlpha: changeAlpha)
                    
                    if viewModel.notchState == .closed {
                        viewModel.close()
                    }
                }
            }
        } else {
            let selectedScreen: NSScreen

            if let preferredScreen = NSScreen.screens.first(where: {
                $0.localizedName == coordinator.preferredScreen
            }) {
                coordinator.selectedScreen = coordinator.preferredScreen
                selectedScreen = preferredScreen
            } else if Defaults[.automaticallySwitchDisplay], let mainScreen = NSScreen.main {
                coordinator.selectedScreen = mainScreen.localizedName
                selectedScreen = mainScreen
            } else {
                if let window = window {
                    window.alphaValue = 0
                }
                return
            }
            
            vm.screen = selectedScreen.localizedName
            vm.notchSize = getClosedNotchSize(screen: selectedScreen.localizedName)
            
            if window == nil {
                window = createDynamicIslandWindow(for: selectedScreen, with: vm)
            }
            
            if let window = window {
                positionWindow(window, on: selectedScreen, changeAlpha: changeAlpha)
                
                if vm.notchState == .closed {
                    vm.close()
                }
            }
        }
    }
    
    @objc func togglePopover(_ sender: Any?) {
        if window?.isVisible == true {
            window?.orderOut(nil)
        } else {
            window?.orderFrontRegardless()
        }
    }
    
    @objc func showMenu() {
        statusItem?.menu?.popUp(positioning: nil, at: NSEvent.mouseLocation, in: nil)
    }
    
    @objc func quitAction() {
        NSApplication.shared.terminate(nil)
    }

    
    
    private func showOnboardingWindow() {
        if onboardingWindowController == nil {
            let window = NSWindow(
                contentRect: NSRect(x: 0, y: 0, width: 400, height: 600),
                styleMask: [.titled, .fullSizeContentView],
                backing: .buffered,
                defer: false
            )
            window.center()
            window.title = "Onboarding"
            window.titlebarAppearsTransparent = true
            window.titleVisibility = .hidden
            window.contentView = NSHostingView(rootView: OnboardingView(
                onFinish: {
                    window.orderOut(nil)
                    NSApp.setActivationPolicy(.accessory)
                    window.close()
                    NSApp.deactivate()
                },
                onOpenSettings: {
                    window.close()
                    SettingsWindowController.shared.showWindow()
                }
            ))
            window.isRestorable = false
            window.identifier = NSUserInterfaceItemIdentifier("OnboardingWindow")

            ScreenCaptureVisibilityManager.shared.register(window, scope: .panelsOnly)

            onboardingWindowController = NSWindowController(window: window)
        }

        NSApp.setActivationPolicy(.regular)
        NSApp.activate(ignoringOtherApps: true)
        onboardingWindowController?.window?.makeKeyAndOrderFront(nil)
        onboardingWindowController?.window?.orderFrontRegardless()
    }
}

extension Notification.Name {
    static let selectedScreenChanged = Notification.Name("SelectedScreenChanged")
    static let notchHeightChanged = Notification.Name("NotchHeightChanged")
    static let showOnAllDisplaysChanged = Notification.Name("showOnAllDisplaysChanged")
    static let automaticallySwitchDisplayChanged = Notification.Name("automaticallySwitchDisplayChanged")
}

extension CGRect: @retroactive Hashable {
    public func hash(into hasher: inout Hasher) {
        hasher.combine(origin.x)
        hasher.combine(origin.y)
        hasher.combine(size.width)
        hasher.combine(size.height)
    }

    public static func == (lhs: CGRect, rhs: CGRect) -> Bool {
        return lhs.origin == rhs.origin && lhs.size == rhs.size
    }
}

@MainActor
final class MediaControlsStateCoordinator {
    static let shared = MediaControlsStateCoordinator()

    private var cancellables = Set<AnyCancellable>()

    private init() {
        let masterPublisher = Defaults.publisher(.showStandardMediaControls)
        let minimalisticPublisher = Defaults.publisher(.enableMinimalisticUI)

        Publishers.CombineLatest(masterPublisher, minimalisticPublisher)
            .receive(on: RunLoop.main)
            .sink { [weak self] masterChange, minimalisticChange in
                self?.handleStateChange(
                    showStandard: masterChange.newValue,
                    minimalistic: minimalisticChange.newValue
                )
            }
            .store(in: &cancellables)
    }

    private func handleStateChange(showStandard: Bool, minimalistic: Bool) {
        if !showStandard && !minimalistic {
            cacheAndDisableMusicLiveActivity()
        } else {
            restoreMusicLiveActivity(clearCache: showStandard)
        }

        if showStandard {
            restoreLockScreenPanelIfNeeded()
            restoreMusicControlWindowIfNeeded()
        } else {
            cacheAndDisableLockScreenPanel()
            cacheAndDisableMusicControlWindow()
        }
    }

    private func cacheAndDisableMusicLiveActivity() {
        if Defaults[.cachedMusicLiveActivityPreference] == nil {
            Defaults[.cachedMusicLiveActivityPreference] = DynamicIslandViewCoordinator.shared.musicLiveActivityEnabled
        }

        if DynamicIslandViewCoordinator.shared.musicLiveActivityEnabled {
            DynamicIslandViewCoordinator.shared.musicLiveActivityEnabled = false
        }
    }

    private func restoreMusicLiveActivity(clearCache: Bool) {
        guard let cached = Defaults[.cachedMusicLiveActivityPreference] else { return }

        if DynamicIslandViewCoordinator.shared.musicLiveActivityEnabled != cached {
            DynamicIslandViewCoordinator.shared.musicLiveActivityEnabled = cached
        }

        if clearCache {
            Defaults[.cachedMusicLiveActivityPreference] = nil
        }
    }

    private func cacheAndDisableLockScreenPanel() {
        if Defaults[.cachedLockScreenMediaWidgetPreference] == nil {
            Defaults[.cachedLockScreenMediaWidgetPreference] = Defaults[.enableLockScreenMediaWidget]
        }

        if Defaults[.enableLockScreenMediaWidget] {
            Defaults[.enableLockScreenMediaWidget] = false
            LockScreenPanelManager.shared.hidePanel()
        }
    }

    private func restoreLockScreenPanelIfNeeded() {
        guard let cached = Defaults[.cachedLockScreenMediaWidgetPreference] else { return }
        Defaults[.enableLockScreenMediaWidget] = cached
        Defaults[.cachedLockScreenMediaWidgetPreference] = nil
    }

    private func cacheAndDisableMusicControlWindow() {
        if Defaults[.cachedMusicControlWindowPreference] == nil {
            Defaults[.cachedMusicControlWindowPreference] = Defaults[.musicControlWindowEnabled]
        }

        if Defaults[.musicControlWindowEnabled] {
            Defaults[.musicControlWindowEnabled] = false
        }

        MusicControlWindowManager.shared.hide()
    }

    private func restoreMusicControlWindowIfNeeded() {
        guard let cached = Defaults[.cachedMusicControlWindowPreference] else { return }
        Defaults[.musicControlWindowEnabled] = cached
        Defaults[.cachedMusicControlWindowPreference] = nil
    }
}