swiftapp/swift/Sources/App/SocialIOApp.swift

import SwiftUI

@main
struct SocialIOApp: App {
    @State private var model = AppViewModel()
    @AppStorage("sio.theme") private var themeRawValue = ThemePreference.system.rawValue

    var body: some Scene {
        #if os(macOS)
        WindowGroup {
            rootView
        }
        .defaultSize(width: 1440, height: 900)

        Settings {
            AppearanceSettingsView()
                .frame(width: 420, height: 300)
        }
        #else
        WindowGroup {
            rootView
        }
        #endif
    }

    private var themePreference: ThemePreference {
        ThemePreference(rawValue: themeRawValue) ?? .system
    }

    private var rootView: some View {
        MailRootView(model: model)
            .tint(SIO.tint)
            .preferredColorScheme(themePreference.colorScheme)
            .onOpenURL { url in
                model.apply(url: url)
            }
    }
}