Architecture

@MainActor
class AppState: ObservableObject {
    // Managers
    let browserManager = BrowserManager()
    let diagnosticsManager = DiagnosticsManager()
    let persistence = PersistenceManager.shared
    let toastManager = ToastManager.shared
    
    // Published state
    @Published var settings: Settings
    @Published private(set) var rules: [Rule]
    @Published var showFirstRun: Bool
    @Published var showRulesWindow = false
    @Published var showChooser = false
    @Published var chooserURL: URL?
    @Published var chooserSourceApp: String?
    @Published var pendingTabSelection: Int?
}

class Router {
    /// Main routing decision function
    static func route(
        url: URL,
        sourceApp: String?,
        settings: Settings,
        rules: [Rule],
        modifierFlags: NSEvent.ModifierFlags?
    ) -> RouteAction {
        // Check if app is disabled
        guard settings.enabled else {
            return .openInFallback
        }
        
        // Check for Option key to show chooser
        if let flags = modifierFlags, flags.contains(.option) {
            return .showChooser(url: url)
        }
        
        // Evaluate rules top-to-bottom, first match wins
        for rule in rules where rule.enabled {
            if let action = evaluateRule(rule, url: url, sourceApp: sourceApp) {
                return action
            }
        }
        
        // No rule matched, use fallback
        return .openInFallback
    }
}

func applicationDidFinishLaunching(_ notification: Notification) {
    // Set as menu bar only app (no dock icon)
    NSApp.setActivationPolicy(.accessory)
    
    // Create menu bar status item
    statusItem = NSStatusBar.system.statusItem(withLength: NSStatusItem.variableLength)
    
    // Build menu with SwiftUI views
    menu = NSMenu()
    
    // Register for URL events
    NSAppleEventManager.shared().setEventHandler(
        self,
        andSelector: #selector(handleGetURLEvent(_:withReplyEvent:)),
        forEventClass: AEEventClass(kInternetEventClass),
        andEventID: AEEventID(kAEGetURL)
    )
    
    // Show first run if needed
    if appState.showFirstRun {
        showFirstRunWindow()
    }
}