Implementing Block/Unblock User in iOS with CometChat UIKit

import UIKit
import CometChatSDK

func showUserDetails(for user: User) {
    let detailsVC = UserDetailsViewController(user: user)
    navigationController?.pushViewController(detailsVC, animated: true)
}

override public func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)
    setupLayout()
    setupNavigationBar()
    if let user = user {
        updateUserStatus(user: user)
    }
}

#if canImport(CometChatCallsSDK)
buttonContainerStackView.addArrangedSubview(audioCallButton)
buttonContainerStackView.addArrangedSubview(videoCallButton)
#endif

@objc func showBlockAlert() {
  // Toggle block/unblock logic with CometChat.blockUsers / unblockUsers
}

@objc func showDeleteAlert() {
  // Confirm and call CometChat.deleteConversation()
}

func connect() {
  CometChat.addUserListener(listenerID, self)
  CometChatUserEvents.addListener(listenerID, self)
}

func disconnect() {
  CometChat.removeUserListener(listenerID)
  CometChatUserEvents.removeListener(listenerID)
}

extension UserDetailsViewController: CometChatUserEventListener, CometChatUserDelegate {
  func onUserOnline(user: User) { updateUserStatus(user: user) }
  func onUserOffline(user: User) { updateUserStatus(user: user) }
  func ccUserBlocked(user: User) { statusLabel.isHidden = true }
  func ccUserUnblocked(user: User) { statusLabel.isHidden = false; updateUserStatus(user: user) }
}