app_for_reddit/Reddit App/App/RedditAppApp.swift

import Combine
import SwiftUI

@main
struct RedditAppApp: App {
    @NSApplicationDelegateAdaptor(AppDelegate.self) private var appDelegate
    @StateObject private var subscriptions = SubscriptionManager()
    @StateObject private var appRating = AppRatingManager()
    @State private var appearanceManager = AppearanceManager.shared
    @State private var splashViewModel = SplashViewModel()
    @State private var session = AppSessionState()

    var body: some Scene {
        Window(AppLinks.appName, id: "main-window") {
            RootView(session: session, splashViewModel: splashViewModel)
                .environmentObject(subscriptions)
                .environmentObject(appRating)
                .environment(appearanceManager)
                .preferredColorScheme(appearanceManager.isDarkMode ? .dark : .light)
                .background {
                    MainWindowLifecycleConfigurator()
                }
        }
        .defaultSize(width: AppWindow.width, height: AppWindow.height)
        .windowStyle(.hiddenTitleBar)
        .commands {
            CommandGroup(replacing: .newItem) {}
        }
    }
}