// JarvisApp.swift

import SwiftUI
import SwiftData
import UIKit
import BackgroundTasks

final class AppDelegate: NSObject, UIApplicationDelegate {
    func application(_ application: UIApplication,
                     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? = nil) -> Bool {
        // Briefing notifications refresh
        BGTaskScheduler.shared.register(forTaskWithIdentifier: jarvisBriefingRefreshID, using: nil) { task in
            Task { @MainActor in
                await NotificationManager.shared.applySettings()
                NotificationManager.shared.scheduleBackgroundRefresh()
                task.setTaskCompleted(success: true)
            }
        }
        // Story feed cache refresh
        BGTaskScheduler.shared.register(forTaskWithIdentifier: jarvisFeedRefreshID, using: nil) { task in
            guard let refresh = task as? BGAppRefreshTask else {
                task.setTaskCompleted(success: false); return
            }
            BackgroundRefreshManager.handleFeedRefresh(task: refresh)
        }
        return true
    }
}

@main
struct JarvisApp: App {
    @UIApplicationDelegateAdaptor(AppDelegate.self) private var appDelegate
    @AppStorage("appearanceMode") private var appearanceMode: AppearanceMode = .dark
    @StateObject private var settings = ServerSettings.shared
    @StateObject private var store = StoryStore.shared
    @StateObject private var ws = WebSocketManager.shared
    @StateObject private var connectivity = ConnectivitySettings.shared
    @StateObject private var connManager = ConnectivityManager.shared
    @StateObject private var notifications = NotificationManager.shared

    // Single ModelContainer instance shared with BackgroundRefreshManager.
    private let container: ModelContainer = {
        let schema = Schema([CachedStory.self, CachedArticle.self,
                             ReadStory.self, SavedStory.self, SeenStory.self])
        return try! ModelContainer(for: schema)
    }()

    var body: some Scene {
        WindowGroup {
            Group {
                if settings.isConfigured {
                    RootTabView()
                } else {
                    OnboardingView()
                }
            }
            .preferredColorScheme(appearanceMode.colorScheme)
            .environmentObject(settings)
            .environmentObject(store)
            .environmentObject(ws)
            .environmentObject(connectivity)
            .environmentObject(connManager)
            .environmentObject(notifications)
            .task {
                // Wire the shared container before scheduling BG work.
                BackgroundRefreshManager.container = container
                BackgroundRefreshManager.scheduleFeedRefresh()

                connManager.start()
                await connManager.resolveAndActivate()
                await notifications.bootstrap()
            }
        }
        .modelContainer(container)
    }
}