namespace VECV_WebApi.Models.EmailServices
{
    using System;
    using System.Configuration;
    using System.IO;
    using System.Net;
    using System.Net.Mail;

    public class EmailServices
    {
        /// <summary>
        /// Function used to send mail.
        /// </summary>
        /// <param name="message">Message detail want to send in mail.</param>
        /// <param name="mailTo">Mail Receiver</param>
        /// <param name="subject">Subject of mail</param>
        public void SendMail(string message, string mailTo, string subject)
        {
            try
            {                
                MailModel mail=new MailModel
                {
                    MailTo = ConfigurationManager.AppSettings["SMTP_To"],
                    Msg = message,
                    Subject = subject,
                    IsBodyHtml = true,
                    SMTP_User = ConfigurationManager.AppSettings["SMTP_User"],
                    SMTP_From = ConfigurationManager.AppSettings["SMTP_From"],
                    SMTP_Host = ConfigurationManager.AppSettings["SMTP_Host"],
                    SMTP_Port = Convert.ToInt32(ConfigurationManager.AppSettings["SMTP_Port"]),
                    SMTP_Pwd = ConfigurationManager.AppSettings["SMTP_Pwd"],
                    Enable_SSL = Convert.ToBoolean(ConfigurationManager.AppSettings["Enable_SSL"])
                };

                MailMessage msg = new MailMessage(mail.SMTP_From, mail.MailTo, mail.Subject, mail.Msg);
                msg.IsBodyHtml = mail.IsBodyHtml;

                if (mail.attach != null)
                {
                    Attachment attach = CreateAttachment(mail.attach);
                    msg.Attachments.Add(attach);
                }
                if (!string.IsNullOrEmpty(mail.MaillCC))
                    msg.CC.Add(mail.MaillCC);

                NetworkCredential cred = new
                NetworkCredential(mail.SMTP_User, mail.SMTP_Pwd);
                SmtpClient mailClient = new SmtpClient(mail.SMTP_Host, mail.SMTP_Port);
                mailClient.EnableSsl = Convert.ToBoolean(ConfigurationManager.AppSettings["Enable_SSL"]);
                mailClient.UseDefaultCredentials = false;
                mailClient.Credentials = cred;
                mailClient.Send(msg);
            }
            catch (Exception ex)
            {
                throw new Exception(ex.Message);
            }
        }

        /// <summary>
        /// Function create attachement with the mail.
        /// </summary>
        /// <param name="encodedAtt"></param>
        /// <returns></returns>
        Attachment CreateAttachment(EncodedAttachment encodedAtt)
        {
            MemoryStream reader = new MemoryStream(Convert.FromBase64String(encodedAtt.Base64Attachment));
            Attachment att = new Attachment(reader, encodedAtt.Name, encodedAtt.MediaType);
            return att;
        }
    }

    public class MailModel
    {
        public string MailTo { get; set; }
        public string MaillCC { get; set; }
        public string Subject { get; set; }
        public string Msg { get; set; }
        public bool IsBodyHtml { get; set; }
        public EncodedAttachment attach { get; set; }
        public string SMTP_From { get; set; }
        public string SMTP_User { get; set; }
        public string SMTP_Host { get; set; }
        public string SMTP_Pwd { get; set; }
        public int SMTP_Port { get; set; }
        public bool Enable_SSL { get; set; }        
    }

    public class EncodedAttachment
    {   
        public string Base64Attachment;
        public string Name;
        public string MediaType;
    }
}