using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Mail;
using System.Text;

    public partial class MailEntity
    {
        /// <summary>
        /// default constructor
        /// </summary>
        public MailEntity(){}

        /// <summary>
        /// Mail Entity constructor using 'GB2312' as default Encoding/timeout is 999999/IsHtmlBody is default as true
        /// </summary>
        /// <param name="mailFrom">the email address that will send the email</param>
        /// <param name="userName">the name of the user who send the email</param>
        /// <param name="pwd">the password of the user who send the email</param>
        /// <param name="displaySenderName">the sender name</param>
        /// <param name="mailTo">the receiver email address</param>
        /// <param name="displayReceiverName">the receiver name</param>
        /// <param name="subject">the subject of the email</param>
        /// <param name="contentBody">the content of the email</param>
        /// <param name="host">the host address that send email</param>
        public MailEntity(string mailFrom, string userName, string pwd, string displaySenderName, string mailTo, string displayReceiverName, string subject, string contentBody, string host)
        {
            TimeOut = 999999;
            Encoding = Encoding.GetEncoding("GB2312"); ;
            MailFrom = mailFrom;
            UserName = userName;
            Pwd = pwd;
            DisplaySenderName = displaySenderName;
            MailTo = mailTo;
            DisplayReceiverName = displayReceiverName;
            Subject = subject;
            ContentBody = contentBody;
            Host = host;
            IsBodyHtml = true;
        }

        /// <summary>
        /// Mail Entity constructor
        /// </summary>
        /// <param name="timeOut">the email send timeout</param>
        /// <param name="encoding">the Encoding type that will edcode the email content</param>
        /// <param name="mailFrom">the email address that will send the email</param>
        /// <param name="userName">the name of the user who send the email</param>
        /// <param name="pwd">the password of the user who send the email</param>
        /// <param name="displaySenderName">the sender name</param>
        /// <param name="mailTo">the receiver email address</param>
        /// <param name="displayReceiverName">the receiver name</param>
        /// <param name="subject">the subject of the email</param>
        /// <param name="contentBody">the content of the email</param>
        /// <param name="host">the host address that send email</param>
        /// <param name="isBodyHtml">if the content of the email is Html</param>
        public MailEntity(System.Int32 timeOut, System.Text.Encoding encoding, string mailFrom, string userName, string pwd, string displaySenderName, string mailTo, string displayReceiverName, string subject, string contentBody, string host, System.Boolean isBodyHtml)
        {
            TimeOut = timeOut;
            Encoding = encoding;
            MailFrom = mailFrom;
            UserName = userName;
            Pwd = pwd;
            DisplaySenderName = displaySenderName;
            MailTo = mailTo;
            DisplayReceiverName = displayReceiverName;
            Subject = subject;
            ContentBody = contentBody;
            Host = host;
            IsBodyHtml = isBodyHtml;
        }

        /// <summary>
        /// Send mail
        /// </summary>
        /// <param name="mailEntity">MailEntity object</param>
        /// <returns></returns>
        public bool SendMail(MailEntity mailEntity)
        {
            try
            {
                Encoding encoding = mailEntity.Encoding;
                MailMessage mailMessage = new MailMessage(new MailAddress(mailEntity.MailFrom, mailEntity.DisplaySenderName, encoding),
                                                          new MailAddress(mailEntity.MailTo, mailEntity.DisplayReceiverName, encoding));
                mailMessage.SubjectEncoding = encoding;
                mailMessage.Subject = mailEntity.Subject;
                mailMessage.IsBodyHtml = mailEntity.IsBodyHtml;
                mailMessage.Body = mailEntity.ContentBody;
                SmtpClient smtpClient = new SmtpClient(mailEntity.Host);
                smtpClient.Credentials = new NetworkCredential(mailEntity.UserName, mailEntity.Pwd);
                smtpClient.Timeout = mailEntity.TimeOut;
                smtpClient.Send(mailMessage);
                return true;   
            }
            catch
            {
                return false;
            }
        }

        #region Properties

        /// <summary>
        /// the email send timeout
        /// </summary>
        public Int32 TimeOut { set; get; }
        /// <summary>
        ///  the email address that will send the email
        /// </summary>
        public String MailFrom { set; get; }
        /// <summary>
        /// the email address that will receive the email
        /// </summary>
        public String MailTo { set; get; }
        /// <summary>
        /// the Encoding type that will edcode the email content
        /// </summary>
        public Encoding Encoding { set; get; }
        /// <summary>
        /// the name of the user who send the email
        /// </summary>
        public String UserName { set; get; }
        /// <summary>
        /// the password of the user who send the email
        /// </summary>
        public string Pwd { get; set; }
        /// <summary>
        /// the sender name that will display in the sender item
        /// </summary>
        public String DisplaySenderName { set; get; }
        /// <summary>
        /// the receiver name that will display in the receiver item
        /// </summary>
        public String DisplayReceiverName { set; get; }
        /// <summary>
        /// mail content
        /// </summary>
        public String ContentBody { set; get; }
        /// <summary>
        /// mail subject
        /// </summary>
        public String Subject { set; get; }
        /// <summary>
        /// mail host address
        /// </summary>
        public String Host { set; get; }
        /// <summary>
        /// if the mail body is in html format
        /// </summary>
        public Boolean IsBodyHtml { set; get; }
        #endregion
    }