using System;
using System.Collections.Generic;
using System.Text;
using System.Net.Mail;
using System.Net;
using OpenPOP.POP3;
using System.Collections;
using SafeNetLib;
using System.Net.Security;
using System.Security.Cryptography.X509Certificates;

namespace ConsoleApplication1
{
    public class EmailServerSSL
    {
        private POPClient popClient;
        private string serverIP;
        private int port;
        private string loginNAme;
        private string password;

        //constructor
        public EmailServerSSL(string _serverIP, string _port, string _logName, string _pass)
        {
            bool result = Int32.TryParse(_port, out port);
            if (!result)
            {
                Console.WriteLine("Email port not numeric, error in EmailServerSSL constructor.");
                return;
            }

            serverIP = _serverIP;
            loginNAme = _logName;
            password = _pass;

            popClient = new POPClient();
            popClient.AuthenticationBegan += new EventHandler(popClient_AuthenticationBegan);
            popClient.AuthenticationFinished += new EventHandler(popClient_AuthenticationFinished);
            popClient.CommunicationBegan += new EventHandler(popClient_CommunicationBegan);
            popClient.CommunicationOccured += new EventHandler(popClient_CommunicationOccured);
            popClient.CommunicationLost += new EventHandler(popClient_CommunicationLost);
            popClient.MessageTransferBegan += new EventHandler(popClient_MessageTransferBegan);
            popClient.MessageTransferFinished += new EventHandler(popClient_MessageTransferFinished);
        }
        #region popCLient events
        private void AddEvent(string strEvent)
        {
            /*
            lstEvents.Items.Add(strEvent);
            lstEvents.SelectedIndex = lstEvents.Items.Count - 1;
             */
            //Console.WriteLine("popClient event = " +strEvent);
        }

        private void popClient_CommunicationBegan(object sender, EventArgs e)
        {
            AddEvent("CommunicationBegan");
        }

        private void popClient_CommunicationOccured(object sender, EventArgs e)
        {
            AddEvent("CommunicationOccured");
        }

        private void popClient_AuthenticationBegan(object sender, EventArgs e)
        {
            AddEvent("AuthenticationBegan");
        }

        private void popClient_AuthenticationFinished(object sender, EventArgs e)
        {
            AddEvent("AuthenticationFinished");
        }

        private void popClient_MessageTransferBegan(object sender, EventArgs e)
        {
            AddEvent("MessageTransferBegan");
        }

        private void popClient_MessageTransferFinished(object sender, EventArgs e)
        {
            AddEvent("MessageTransferFinished");
        }

        private void popClient_CommunicationLost(object sender, EventArgs e)
        {
            AddEvent("CommunicationLost");
        }


        #endregion

        public ArrayList getEmails()
        {
            ArrayList ret = new ArrayList();
            try
            {
                popClient.IsUsingSsl = true;
                popClient.Disconnect();
                popClient.Connect(serverIP, port);
                popClient.Authenticate(loginNAme, password);


                int count = popClient.GetMessageCount();
                Console.WriteLine("Got " + count + " emails");

                for (int i = count; i >= 1; i -= 1)
                {
                    OpenPOP.MIMEParser.Message email = popClient.GetMessage(i, false);
                    if (email != null)
                    {

                        Console.WriteLine("-----------------------------------------------------------------");
                        Console.WriteLine("From: " + email.FromEmail);
                        if (email.TO.Length >= 0)
                            Console.WriteLine("To: " + email.TO[0]);
                        Console.WriteLine("Subject: " + email.Subject);
                        if (email.MessageBody.Count > 0)
                        {
                            Console.WriteLine("Text: " + (string)email.MessageBody[email.MessageBody.Count - 1]);
                        }

                        EmailtoSMS ets = processMessage(email.Subject, (string)email.MessageBody[email.MessageBody.Count - 1], email.FromEmail);
                        if ((ets.id != "") && (ets.text == ""))
                        {
                            Console.WriteLine("Incorrect email body " + (string)email.MessageBody[email.MessageBody.Count - 1]);
                        }
                        else if ((ets.id != "") && (ets.text != ""))
                        {
                            popClient.DeleteMessage(i);
                            ret.Add(ets);
                        }
                    }
                    else
                    {
                        Console.WriteLine("-----------------------------------------------------------------");
                        Console.WriteLine("BAD email");
                    }

                }

                popClient.Disconnect();
            }
            catch (Exception ex)
            {
                Console.WriteLine("getEmails() from EmailServerSSL Exception: " + ex.Message + ex.ToString());
            }
            return ret;
        }

        private EmailtoSMS processMessage(string subj, string body, string from)
        {
            EmailtoSMS obj = new EmailtoSMS();
            obj.from = from;
            String s = subj.ToUpper();
            if (s.Contains("ID[") && subj.Contains("]"))
            {
                obj.id = s;
                obj.id = obj.id.Remove(0, s.IndexOf("ID[") + 3);
                obj.id = obj.id.Remove(obj.id.IndexOf("]"));
            }

            if (obj.id.Length > 0)
            { // ID prezent in subject
                s = body.ToUpper();
                // SM.Debug("Email text:" + s.ToString() + " " + s.Contains("BODY[") + " " + body.Contains("]"));
                if (s.Contains("BODY[") && body.Contains("]"))
                {
                    obj.text = body;
                    obj.text = obj.text.Remove(0, s.IndexOf("BODY[") + 5);
                    obj.text = obj.text.Remove(obj.text.IndexOf("]"));
                    if (obj.text.Length > 139)
                        obj.text = obj.text.Remove(140);
                }
            }
            else
            {  //check for id in email body
                s = body.ToUpper();
                if (s.Contains("ID[") && s.Contains("]"))
                {
                    obj.id = body;
                    obj.id = obj.id.Remove(0, s.IndexOf("ID[") + 3);
                    obj.id = obj.id.Remove(obj.id.IndexOf("]"));
                }

                if (obj.id.Length > 0)
                {
                    s = body.ToUpper();
                    //SM.Debug("Email text2:" + s.ToString() + " " + s.Contains("BODY[") + " " + body.Contains("]"));
                    if (s.Contains("BODY[") && s.Contains("]"))
                    {
                        obj.text = body;
                        obj.text = obj.text.Remove(0, s.IndexOf("BODY[") + 5);
                        obj.text = obj.text.Remove(obj.text.IndexOf("]"));
                        if (obj.text.Length > 139)
                            obj.text = obj.text.Remove(140);
                    }
                }

            }

            Console.WriteLine("ID: " + obj.id);
            Console.WriteLine("Text: " + obj.text);
            Console.WriteLine("-----------------------------------------------------------------");
            return obj;
        }

    
        public static void sendEmail(string server, string _port, string user, string pass, MailMessage mailMessage, Boolean enableSSL)
        {
            int port = 0;
            bool result = Int32.TryParse(_port, out port);
            if (result)
            {
          
                SmtpClient mailClient = new SmtpClient();
                mailClient.Host = server;
                mailClient.Port = port;
                NetworkCredential cred = new NetworkCredential(user, pass);
                mailClient.Credentials = cred;
                mailClient.EnableSsl = enableSSL;
                //ServicePointManager.ServerCertificateValidationCallback = delegate(object s, X509Certificate certificate, System.Security.Cryptography.X509Certificates.X509Chain chain, SslPolicyErrors sslPolicyErrors) { return true; };
                mailClient.Send(mailMessage);
                Console.WriteLine("------Sending email on " + server + " TO: " + mailMessage.To[0].ToString() + "--------------");
            }
            else
            {
                Console.WriteLine("Email port not numeric, error in sendEmail.");
            }
        }
    }

    public class EmailtoSMS
    {
        public String from;
        public String id;
        public String text;

        public EmailtoSMS()
        {
            from = "";
            id = "";
            text = "";
        }
    }
}