using System;
using System.Collections.Generic;
using System.Text;
using System.Net.Mail;
using System.Collections;
using MySql.Data.MySqlClient;
using SafeNetLib;

namespace ConnectPlus_SOC
{
    class EmailHandler
    {
        //emai stuff
        private EmailServerSSL sslServer;
        private static System.Threading.Timer tCheckMail;
        private string MyConString;
        private string gatewayID;

        public EmailHandler(string p_dbConStr, string p_gatewayID)
        {
            MyConString = p_dbConStr;
            gatewayID = p_gatewayID;

            //emai server ini
            if (ConnectPlus_GW.cfg.enableEmailService)
            {
                Utils.ConsWrite(DebugMSG_Type.Email, "Turning on EmailService on " + ConnectPlus_GW.cfg.user);
                sslServer = new EmailServerSSL(ConnectPlus_GW.cfg.pop3Server, ConnectPlus_GW.cfg.pop3Port, ConnectPlus_GW.cfg.user, ConnectPlus_GW.cfg.psw);
            }
            else
                Utils.ConsWrite(DebugMSG_Type.Email, "EmailService disabled!!!");

            //start email timer... refresh time 1 min
            if (ConnectPlus_GW.cfg.enableEmailService)
            {
                tCheckMail = new System.Threading.Timer(CheckMAil, null, new TimeSpan(0, 0, 0), new TimeSpan(0, 1, 0));
            }
        }
        #region email

        private void CheckMAil(Object state)
        {
            // This method is executed by a thread pool thread 
            try
            {
                Utils.ConsWrite(DebugMSG_Type.Email, new string[] { "Checking mail at:" + DateTime.Now.ToString(), "For " + ConnectPlus_GW.cfg.user.ToString() + " on " + ConnectPlus_GW.cfg.smtpServer.ToString() });
                ArrayList EmailList = sslServer.getEmails();

                foreach (EmailtoSMS obj in EmailList)
                {
                    Utils.ConsWrite(DebugMSG_Type.Email, new string[] {"-----START OK----",
                                        "From: " + obj.from,
                                        "ID: " + obj.id,
                                        "Text: " + obj.text});

                    try
                    {
                        obj.text = obj.text.Replace("'", "`");
                        obj.text = obj.text.Replace("#", " ");
                    }
                    catch (Exception ex)
                    {
                        Utils.ConsWrite(DebugMSG_Type.Email, "Error on converting email:" + ex.ToString());
                    }


                    if (obj.text.Length > 140 - 3 - obj.from.Length)
                        obj.text = obj.text.Remove(140 - 3 - obj.from.Length) + " [" + obj.from + "]";
                    else
                        obj.text = obj.text + " [" + obj.from + "]";
                    //SendSMS(obj.id, obj.text, -1); // don't wait for confirmation
                    InsertSMSinDB(obj.text, obj.id);
                    //LOGS.LOG(ConnectPlus_GW.cfg.gw_id + obj.id + " Email sms:" + obj.text);
                }
                Utils.ConsWrite(DebugMSG_Type.Email, "Email check done!!!");
            }
            catch (Exception ex)
            {
                Utils.ConsWrite(DebugMSG_Type.always, "Error on CheckMAil:" + ex.ToString());
            }
        }

        //sms-> email
        public static void sendMail(string mailAdr, string mailBody, string radioID)
        {
            Utils.ConsWrite(DebugMSG_Type.Email, "Sending mail to " + mailAdr + " from radioId " + radioID.ToString());
            try
            {
                MailMessage message = new MailMessage();
                message.From = new MailAddress(ConnectPlus_GW.cfg.user);
                message.To.Add(mailAdr);
                message.Subject = "RadioID: " + radioID.ToString() + "  Subject:" + (mailBody.Length < 25 ? mailBody : (mailBody.Remove(25) + "..."));
                message.Body = "You received a message from radio id " + radioID.ToString() +
                               "\n------------------------------\n" +
                               mailBody +
                               "\n------------------------------\n ";
                message.IsBodyHtml = true;

                EmailServerSSL.sendEmail(ConnectPlus_GW.cfg.smtpServer, ConnectPlus_GW.cfg.smtpPort, ConnectPlus_GW.cfg.user, ConnectPlus_GW.cfg.psw, message, ConnectPlus_GW.cfg.sslState);
            }
            catch (Exception ex)
            {
                Utils.ConsWrite(DebugMSG_Type.always, "Exception in sendMail: "+ex.ToString());
                //Console.WriteLine(e.ToString());
            }
        }

        //insert SMS in DB for further processing
        private bool InsertSMSinDB(string body, string p_radioID)
        {
            try
            {
                int suDBid = 0;
                lock (SN_Queues.ht_SUInfo.SyncRoot)
                {
                    if (SN_Queues.ht_SUInfo != null)
                    {
                        if (SN_Queues.ht_SUInfo.ContainsKey(p_radioID))
                            suDBid = ((SUinfo)SN_Queues.ht_SUInfo[p_radioID]).DBid;
                    }
                }
                if (suDBid == 0)
                {
                    Utils.ConsWrite(DebugMSG_Type.Debug, "Unit with IMEI:" + p_radioID + " not found in DB!!!!");
                    //LOGS.LOG("Unit with IMEI:" + p_radioID + " not found in DB!!!!");
                    return false;
                }

                MySqlConnection connection = new MySqlConnection(MyConString);
                MySqlConnection connectionSet = new MySqlConnection(MyConString);
                string query = "insert into text_message (message_content,unit_id,date_created,time_sent_or_received,message_type,is_sent) values ('" + body +
                                        "'," + suDBid +
                                        ",'" + DateTime.Now.ToUniversalTime().ToString("yyyy:MM:dd HH:mm:ss") +
                                        "','" + DateTime.Now.ToUniversalTime().ToString("yyyy:MM:dd HH:mm:ss") +
                                        "','OUT',0)";
                MySqlCommand setSent = new MySqlCommand(query, connectionSet);

                connectionSet.Open();
                setSent.ExecuteNonQuery();
                connectionSet.Close();
                Utils.ConsWrite(DebugMSG_Type.Email, "SMS added to DB : ID " + suDBid + " body:" + body);
                return true;
            }
            catch (Exception e)
            {
                Utils.ConsWrite(DebugMSG_Type.always, "Error InsertSMSinDB in database by EmailHandler");
                Utils.ConsWrite(DebugMSG_Type.always, e.Message);
                return false;
            }
        }
        #endregion
    }
}