AlertPresentable.swift

import Foundation

/// A protocol to present an alert controller
protocol AlertPresentable where Self: UIViewController {
    
    /// Present an alert controller
    ///
    /// - Parameters:
    ///   - title: The alert title
    ///   - message: The alert message
    ///   - actions: An array of actions
    ///   - completion: The completion handler of the presentaetion action
    func presentAlert(title: String, message: String, actions: [UIAlertAction], completion: (() -> Void)?)
}

extension AlertPresentable {
    
    func presentAlert(title: String, message: String, actions: [UIAlertAction], completion: (() -> Void)? = nil) {
        let alert = UIAlertController(title: title, message: message, preferredStyle: .alert)
        actions.forEach { alert.addAction($0) }
        present(alert, animated: true, completion: completion)
    }
}