//
//  GenericSocket.swift
//  TunnelKit
//
//  Created by Davide De Rosa on 4/16/18.
//  Copyright © 2018 London Trust Media. All rights reserved.
//

import Foundation

protocol LinkProducer {
    func link(withMTU mtu: Int) -> LinkInterface
}

protocol GenericSocketDelegate: class {
    func socketDidTimeout(_ socket: GenericSocket)

    func socketShouldChangeProtocol(_ socket: GenericSocket)
    
    func socketDidBecomeActive(_ socket: GenericSocket)

    func socket(_ socket: GenericSocket, didShutdownWithFailure failure: Bool)

    func socketHasBetterPath(_ socket: GenericSocket)
}

protocol GenericSocket: LinkProducer {
    var remoteAddress: String? { get }
    
    var hasBetterPath: Bool { get }
    
    var isShutdown: Bool { get }

    var delegate: GenericSocketDelegate? { get set }

    func observe(queue: DispatchQueue, activeTimeout: Int)

    func unobserve()
    
    func shutdown()
    
    func upgraded() -> GenericSocket?
}