//
// WorkoutsApp.swift
// Workouts
//
// Created by rzen on 7/11/25 at 5:04 PM.
//
// Copyright 2025 Rouslan Zenetl. All Rights Reserved.
//


import SwiftUI
import SwiftData
import CloudKit
import CoreData

@main
struct WorkoutsApp: App {
    let container: ModelContainer
    @State private var cloudKitObserver: NSObjectProtocol?
    
    init() {
        self.container = WorkoutsContainer.create()
        
        // Set up CloudKit notification observation
        setupCloudKitObservation()
    }
    
    private func setupCloudKitObservation() {
        // Access the underlying NSPersistentCloudKitContainer
        if let persistentContainer = Mirror(reflecting: container).descendant("persistentContainer") as? NSPersistentContainer {
            // Register for remote change notifications
            cloudKitObserver = NotificationCenter.default.addObserver(
                forName: NSPersistentCloudKitContainer.eventChangedNotification,
                object: persistentContainer,
                queue: .main
            ) { notification in
                // Handle the notification
                self.handleCloudKitNotification(notification)
            }
        }
    }
    
    private func handleCloudKitNotification(_ notification: Notification) {
        guard let event = notification.userInfo?[NSPersistentCloudKitContainer.eventNotificationUserInfoKey] as? NSPersistentCloudKitContainer.Event else {
            return
        }
        
        // Log the event for debugging
        print("CloudKit event: \(event.type), \(event.succeeded ? "succeeded" : "failed")")
        
        // If the event was a successful import, refresh the UI
        if event.type == .import, event.succeeded {
            // Create a new context to force UI refresh
            let context = ModelContext(container)
            
            // Trigger UI refresh by posting a notification that views can observe
            NotificationCenter.default.post(name: .cloudKitDataDidChange, object: nil)
        }
    }

    var body: some Scene {
        WindowGroup {
            ContentView()
        }
        .modelContainer(container)
    }
}

// Extension to define the notification name
extension Notification.Name {
    static let cloudKitDataDidChange = Notification.Name("cloudKitDataDidChange")
}