using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Text;
using System.Security.Cryptography.X509Certificates;
using System.Security;

namespace Intel.Management.Wsman
{
    /// <summary>
    /// Verifies the remote server certificate used for authentication.
    /// </summary>
    /// <param name="certificate">The certificate used to authenticate</param>
    /// <param name="errors">One or more errors associated with the remote certificate.</param>
    /// <returns>bool, determines whether the specified certificate is accepted for authentication.</returns>
    public delegate bool ServerCertificateValidationCallback(X509Certificate certificate,
                                                    System.Net.Security.SslPolicyErrors errors);

    /// <summary>
    /// Represents various  options for a Wsman connection
    /// </summary>
    [InterfaceType(ComInterfaceType.InterfaceIsDual)]
    [Guid("58A73241-12B8-4d6d-BA33-F8492A085E24")]
    [ComVisible(true)]
    public interface IWsmanConnectionOptions: IDisposable
    {
        /// <summary>
        /// Gets or sets the amount of time in milliseconds connection  will 
        /// wait for responses from the server
        /// </summary>
        int Timeout { get; set; }
        /// <summary>
        /// Gets or sets max number of items the connection can recieve when pulling data
        /// </summary>
        int MaxElements { get; set; }
        /// <summary>
        /// Gets or sets the proxy Address
        /// </summary>
        string ProxyAddress { get; set; }
        /// <summary>
        /// Gets or sets the proxy user name
        /// </summary>
        string ProxyUser { get; set; }
        /// <summary>
        /// Gets or sets the proxy password
        /// </summary>
        SecureString ProxyPassword { get; set; }
        /// <summary>
        /// Gets or sets the client certificate for mutual authentication
        /// </summary>
        X509Certificate ClientCertificate { get; set; }
        /// <summary>
        /// Gets or sets the connection Service Principle Name
        /// </summary>
        string ServiceName { get; set; }
        /// <summary>
        /// Gets or sets a value that indicates whether to verify certificates during TLS operations
        /// </summary>
        bool VerifyCertificates { get; set; }
        /// <summary>
        /// Gets or sets a value that indicates whether to accept self-signed certificate and skip any certificate check
        /// </summary>
        bool AcceptSelfSignedCertificate { get; set; }
        /// <summary>
        /// Gets or sets a value that indicates whether to treat the Password as a master password
        /// </summary>
        bool UseDigestMasterPassword { get; set; }
        /// <summary>
        /// Gets or sets a value that indicates whether to hide the password 
        /// </summary>
        bool HidePassword { get; set; }
        /// <summary>
        /// Gets or sets a value that indicates the Internet Protocol to use
        /// </summary>
        InternetProtocolType InternetProtocol { get; set; }
        /// <summary>
        /// Gets or sets the callback for custom validation by the client of the server certificate.
        /// </summary>
        ServerCertificateValidationCallback ServerCertificateValidationCallback { get; set; }
        ///<summary>
        /// Sets the client certificate to be used in the connection by giving the certificate name.
        ///</summary>
        ///<param name="clientCert">The certificate name.</param>
        void SetClientCertificateByCertificateName(string clientCert);

    } // interface

    /// <summary>
    /// The Type of Internet protocol to use
    /// </summary>
    public enum InternetProtocolType
    {
        /// <summary>
        /// Use IPv4 Protocol
        /// </summary>
        IPv4 = 4,
        /// <summary>
        /// Use IPv6 Protocol
        /// </summary>
        Ipv6 = 6,
    }

}// end namespace