import Foundation

protocol BuddyRequestProtocol {
    func showBuddyRequest()
}

extension BuddyRequestProtocol where Self: UIViewController {
    func showBuddyRequest(fromUser: String) {
        let alert = UIAlertController(title: "AAA", message: "\(fromUser) wants to add you as a friend.", preferredStyle: UIAlertControllerStyle.Alert)
        alert.addAction(UIAlertAction(title: "Friend Request", style: UIAlertActionStyle.Default, handler: nil))
        self.presentViewController(alert, animated: true, completion: nil)
    }
}

// Usage
class OpenChatsTableViewController: UITableViewController, OneRosterDelegate, BuddyRequestProtocol {