//----------------------------------------------------------------------------
//
// Copyright © 2009-2012, Intel Corporation. All rights reserved.
//
// File:        Connection.cs
//
//----------------------------------------------------------------------------

using System;
using System.Collections.Generic;
using System.Text;
using System.Xml.Serialization;
using System.Runtime.Serialization;
using System.IO;
using Intel.Management.Wsman;

namespace UCT
{
    [Serializable]
    /// <summary>
    /// This class hold the basic information data.
    /// Used for the remeber the machines wich we connect them on the past.
    /// </summary>
    public class Connection : ISerializable
    {
        #region - Members - 

        /// <summary>
        /// The amt hostname
        /// </summary>
        public string HostName {  set; get; }

        /// <summary>
        /// AMT User name
        /// </summary>
        public string UserName {  set; get; }     

        /// <summary>
        /// Indicate if Kerberos is enable
        /// </summary>
        public bool KerberosEnable { set; get; }

        /// <summary>
        /// Indicate if TLS is enable
        /// </summary>
        public bool TLSEnable {  set; get; }

        /// <summary>
        /// Indicate if TLS is enable
        /// </summary>
        public bool MTLSEnable {  set; get; }

        /// <summary>
        /// Hold the client ceritficate name
        /// </summary>
        public string ClientCertificate {  set; get; }

        /// <summary>
        /// Indicate if Cira is enable
        /// </summary>
        public bool CiraEnable {  set; get; }

        /// <summary>
        /// Hold the proxy host name
        /// </summary>
        public string ProxyHost {  set; get; }

        /// <summary>
        /// Hold the proxy port
        /// </summary>
        public ushort ProxyPort {  set; get; }

        /// <summary>
        /// Hold the proxy user name
        /// </summary>
        public string ProxyUserName {  set; get; }


        #endregion

        #region ISerializable Members

        public void GetObjectData(SerializationInfo info, StreamingContext context)
        {
            throw new NotImplementedException();
        }

        #endregion

        #region - Constructors - 

        public Connection(string host, string username, bool kerberos, bool tls, bool mtls, string cert,
                          bool cira, string proxyHost, ushort proxyPort, string proxyUser, string proxyPass)
        {
            HostName = host;
            UserName = username;
            KerberosEnable = kerberos;
            TLSEnable = tls;
            MTLSEnable = mtls;
            ClientCertificate = cert;
            CiraEnable = cira;
            ProxyHost = proxyHost;
            ProxyPort = proxyPort;
            ProxyUserName = proxyUser;
        }
        public Connection() { }

        #endregion

        #region  - Operators - 

        public static bool operator ==(Connection x, Connection y)
        {
            // If one is null, but not both, return false.
            if (((object)x == null) || ((object)y == null))
            {
                return false;
            }

            if (x.HostName == y.HostName &&
                x.UserName == y.UserName &&
                x.KerberosEnable == y.KerberosEnable &&
                x.TLSEnable == y.TLSEnable &&
                x.ClientCertificate == y.ClientCertificate &&
                x.MTLSEnable == y.MTLSEnable &&
                x.CiraEnable == y.CiraEnable &&
                x.ProxyHost == y.ProxyHost &&
                x.ProxyPort == y.ProxyPort &&
                x.ProxyUserName == y.ProxyUserName )
            {
                return true;
            }
            return false;
        }

        public static bool operator !=(Connection x, Connection y)
        {
            return !(x == y);
        }

        public override int GetHashCode()
        {
            return base.GetHashCode();
        }

        public override bool Equals(object obj)
        {
            return base.Equals(obj);
        }

        #endregion
    }

    [Serializable]
    public class ConnectionHistory
    {
        // This attribute enables the ArrayList to be serialized:
        [XmlArray("Items")]
        [XmlArrayItem("ConnectionItem", typeof(Connection))]
        /// <summary>
        /// Host all the connections
        /// </summary>
        private List<Connection> _connections;

        [XmlIgnore]
        private XmlSerializer _serializer;

        /// <summary>
        /// Constuctor
        /// </summary>
        public ConnectionHistory()
        {
            if (_connections == null)
            {
                _connections = new List<Connection>();
                _serializer = new XmlSerializer(typeof(List<Connection>));
            }
        }

        /// <summary>
        /// Add new connection information
        /// </summary>
        /// <param name="conToAdd"></param>
        public bool CheckExistingConnectionInfo(Connection con)
        {
            if (_connections.Exists(e => e.HostName == con.HostName) == false)
            {
                AddConnectionInfo(con);
                return false;
            }
            if (_connections.Find(e => e.HostName == con.HostName) == con)
            {
                return false;
            }
            return true;
        }

        /// <summary>
        /// Add new connection information
        /// </summary>
        /// <param name="conToAdd"></param>
        public void AddConnectionInfo(Connection conToAdd)
        {
            _connections.Add(conToAdd);
            SaveConnections();
        }

        /// <summary>
        /// Remove new connection information
        /// </summary>
        /// <param name="conToAdd"></param>
        public void ReplaceConnectionInfo(Connection conToAdd)
        {
            _connections.Remove(_connections.Find(e => e.HostName == conToAdd.HostName));
            AddConnectionInfo(conToAdd);
        }

        /// <summary>
        /// Save all the connection
        /// </summary>
        private void SaveConnections()
        {
            try
            {
                // Serialize the connections list
                using (StringWriter writer = new StringWriter())
                {
                    _serializer.Serialize(writer, _connections);
                    string serializedXml = writer.ToString();
                    writer.Close();
                    
                    // Save the serialized xml
                    Properties.Settings.Default.CONNECTION_HISTORY = serializedXml;
                    Properties.Settings.Default.Save();
                }
            }
            catch { }
        }

        /// <summary>
        /// Save all the connection
        /// </summary>
        public List<Connection> LoadConnections()
        {
            try
            {
                if (Properties.Settings.Default.CONNECTION_HISTORY != string.Empty)
                {
                    _connections = (List<Connection>)_serializer.Deserialize(new StringReader(Properties.Settings.Default.CONNECTION_HISTORY));
                }
            }
            catch { }

            return _connections;
        }
    }
}