import AppKit
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import Foundation
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final class FullscreenHostDelegate: NSObject, NSApplicationDelegate, NSWindowDelegate {
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private let readyFile: String
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private let screenIndex: Int
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private var window: NSWindow?
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private var requestedScreenFrame: CGRect = .zero
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init(readyFile: String, screenIndex: Int) {
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self.readyFile = readyFile
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self.screenIndex = screenIndex
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}
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func applicationDidFinishLaunching(_ notification: Notification) {
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NSApp.setActivationPolicy(.regular)
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let screens = NSScreen.screens
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let screen = screens.indices.contains(screenIndex) ? screens[screenIndex] : NSScreen.main
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let frame = screen?.frame ?? CGRect(x: 0, y: 0, width: 1280, height: 800)
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requestedScreenFrame = frame
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let window = NSWindow(
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contentRect: CGRect(
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x: frame.midX - 480,
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y: frame.midY - 300,
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width: 960,
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height: 600
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),
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styleMask: [.titled, .closable, .resizable, .miniaturizable],
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backing: .buffered,
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defer: false
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)
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window.title = "Aligner QA Fullscreen Host"
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window.collectionBehavior = [.fullScreenPrimary]
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window.delegate = self
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let label = NSTextField(labelWithString: "Aligner Fullscreen QA Host")
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label.font = .systemFont(ofSize: 36, weight: .semibold)
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label.textColor = .white
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label.alignment = .center
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label.frame = CGRect(x: 80, y: 250, width: 800, height: 80)
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let content = NSView(frame: window.contentView?.bounds ?? .zero)
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content.wantsLayer = true
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content.layer?.backgroundColor = NSColor(calibratedRed: 0.08, green: 0.10, blue: 0.14, alpha: 1).cgColor
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content.addSubview(label)
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window.contentView = content
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self.window = window
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window.makeKeyAndOrderFront(nil)
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NSApp.activate(ignoringOtherApps: true)
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DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
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window.toggleFullScreen(nil)
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}
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}
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func windowDidEnterFullScreen(_ notification: Notification) {
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writeReady(reason: "windowDidEnterFullScreen")
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}
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private func writeReady(reason: String) {
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let screenDescription = NSScreen.screens.enumerated().map { index, screen in
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"screen=\(index) frame=x:\(Int(screen.frame.minX)),y:\(Int(screen.frame.minY)),w:\(Int(screen.frame.width)),h:\(Int(screen.frame.height))"
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}.joined(separator: "\n")
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let targetScreen = window?.screen
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let targetFrame = targetScreen?.frame ?? .zero
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let text = "readyReason=\(reason)\n" +
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"requestedScreenIndex=\(screenIndex)\n" +
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"requestedScreenFrame=x:\(Int(requestedScreenFrame.minX)),y:\(Int(requestedScreenFrame.minY)),w:\(Int(requestedScreenFrame.width)),h:\(Int(requestedScreenFrame.height))\n" +
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"targetScreenFrame=x:\(Int(targetFrame.minX)),y:\(Int(targetFrame.minY)),w:\(Int(targetFrame.width)),h:\(Int(targetFrame.height))\n" +
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"mouse=x:\(Int(NSEvent.mouseLocation.x)),y:\(Int(NSEvent.mouseLocation.y))\n" +
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"\(screenDescription)\n"
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try? text.write(toFile: readyFile, atomically: true, encoding: .utf8)
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}
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}
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func argumentValue(prefix: String) -> String? {
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CommandLine.arguments.first { $0.hasPrefix(prefix) }.map { String($0.dropFirst(prefix.count)) }
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}
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guard let readyFile = argumentValue(prefix: "--ready-file=") else {
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fputs("usage: round1-fullscreen-host.swift --ready-file=<path> [--screen-index=<index>]\n", stderr)
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exit(2)
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}
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let screenIndex = argumentValue(prefix: "--screen-index=").flatMap(Int.init) ?? 0
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let delegate = FullscreenHostDelegate(readyFile: readyFile, screenIndex: screenIndex)
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NSApplication.shared.delegate = delegate
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NSApplication.shared.run()
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