using System;
using System.Collections.Generic;
using System.Configuration;
using System.Linq;
using System.Net.Mail;
using System.Text;
using System.Threading.Tasks;

namespace CK.SCP.Common
{

    public class MyWebSmtpMail
    {
        private MailMessage mailMessage;
        private SmtpClient smtpClient;
        private string from;
        private string server;
        private string username;
        private string password;
        private bool enablessl;
        private bool credentials;
        private int port;

        public MyWebSmtpMail()
        {
            string From = ConfigurationManager.AppSettings["MailSender"];
            string Server = ConfigurationManager.AppSettings["MailServer"];
            string UserName = ConfigurationManager.AppSettings["MailUserName"];
            string Password = ConfigurationManager.AppSettings["MailPassword"];
            int Port = Convert.ToInt32(ConfigurationManager.AppSettings["MailPort"]);

            this.from = From;
            this.server = Server;
            this.password = Password;
            this.username = UserName;
            this.enablessl = true;
            this.port = Port;
            this.credentials = false;
        }

        public void Send(string To, string Body, string Title)
        {
            mailMessage = new MailMessage();
            mailMessage.To.Add(To);
            mailMessage.From = new System.Net.Mail.MailAddress(this.from);
            mailMessage.Subject = Title;
            mailMessage.Body = Body;
            mailMessage.IsBodyHtml = true;
            mailMessage.BodyEncoding = System.Text.Encoding.UTF8;
            mailMessage.Priority = System.Net.Mail.MailPriority.Normal;

            if (mailMessage != null)
            {
                smtpClient = new SmtpClient();
                if (!credentials)
                {
                    smtpClient.Credentials = new System.Net.NetworkCredential(username, password);
                }
                smtpClient.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;
                smtpClient.Host = server;
                smtpClient.Port = port;
                smtpClient.EnableSsl = enablessl;
                //smtpClient.Send(mailMessage);
                //smtpClient.SendAsync(mailMessage, null);

                //如果服务器支持安全连接，则将安全连接设为true
                //smtpClient.EnableSsl = true;
                try
                {
                    //是否使用默认凭据，若为false，则使用自定义的证书，就是下面的networkCredential实例对象
                    smtpClient.UseDefaultCredentials = false;

                    //指定邮箱账号和密码,需要注意的是，这个密码是你在QQ邮箱设置里开启服务的时候给你的那个授权码
                    System.Net.NetworkCredential networkCredential = new System.Net.NetworkCredential(username, password);
                    smtpClient.Credentials = networkCredential;

                    //发送邮件
                    smtpClient.Send(mailMessage);

                }
                catch (System.Net.Mail.SmtpException ex)
                {                  
                    Console.WriteLine(ex.Message, "发送邮件出错");
                }
            }
        }
    }
}