//
//  HXProcessNotification.swift
//  ScreenShareExtension
//
//  Created by Bugu on 2023/10/25.
//  Copyright © 2023 Bugu. All rights reserved.
//

import Foundation
import CoreFoundation

struct HXProcessNotification {
    
  
    static let callback: CFNotificationCallback = { (center: CFNotificationCenter?, observer: UnsafeMutableRawPointer?, name: CFNotificationName?, object: UnsafeRawPointer?, userInfo: CFDictionary?) in
        DispatchQueue.main.async {
            if let identifier = name?.rawValue as String? {
                NotificationCenter.default.post(name: Notification.Name(identifier), object: identifier)
            }
        }
    }

    static func addObserver(_ observer: AnyObject, selector: Selector, notificationName: String, object: Any?) {
        DispatchQueue.main.async {
            let center = CFNotificationCenterGetDarwinNotifyCenter()
            let pointerObserver = Unmanaged.passUnretained(observer).toOpaque()
            CFNotificationCenterAddObserver(center, pointerObserver, self.callback, notificationName as CFString, nil, .deliverImmediately)
            NotificationCenter.default.addObserver(observer, selector: selector, name: NSNotification.Name(rawValue: notificationName), object: object)
        }
    }

    static func removeObserver(_ observer: AnyObject, notificationName: String) {
        let center = CFNotificationCenterGetDarwinNotifyCenter()
        let pointerObserver = Unmanaged.passUnretained(observer).toOpaque()
        CFNotificationCenterRemoveObserver(center, pointerObserver, CFNotificationName(notificationName as CFString) , nil)
        NotificationCenter.default.removeObserver(observer, name: NSNotification.Name(rawValue: notificationName), object: nil)
    }

    static func removeObserver(_ observer: AnyObject) {
        let center = CFNotificationCenterGetDarwinNotifyCenter()
        let pointerObserver = Unmanaged.passUnretained(observer).toOpaque()
        CFNotificationCenterRemoveEveryObserver(center, pointerObserver)
        NotificationCenter.default.removeObserver(observer)
    }

    static func postNotificationName(_ notificationName: String, userInfo: [String : Any]?) {
        DispatchQueue.main.async {
            let center = CFNotificationCenterGetDarwinNotifyCenter()
            let userInfo = userInfo as CFDictionary?
            CFNotificationCenterPostNotification(center, CFNotificationName(notificationName as CFString), nil, userInfo, true)
        }
    }
}