using System;
using System.Net.Mail;
using System.Text.RegularExpressions;
using EmailDispatcher;

namespace EmailDispatcher
{
    class Program
    {
        private static SmtpClient smtp = new SmtpClient(Constants.gmailConn, Constants.gmailPort);

        static void Main(string[] args)
        {
            try
            {
                #region Sender Name
                bool userNameBool = true;
                while(userNameBool)
                {
                    Console.Write("Enter your name: ");
                    User.displayNameStr = Console.ReadLine();
                    if(Constants.regUserName.IsMatch(User.displayNameStr))
                        userNameBool = false;
                    else
                    {
                        Console.WriteLine("Name entered was not in proper format. Please retry");
                        userNameBool = true;
                    }
                }
                #endregion
                
                #region From User
                bool fromStrBool = true;
                while (fromStrBool)
                {
                    Console.Write("Enter your email address: ");
                    User.fromStr = Console.ReadLine();
                    if (Constants.regEmail.IsMatch(User.fromStr))
                        fromStrBool = false;
                    else
                    {
                        Console.WriteLine("Email address entered was not in proper format. Please retry");
                        fromStrBool = true;
                    }
                }
                #endregion

                #region User Password
                Console.Write("Enter your password: ");
                ConsoleKeyInfo info = Console.ReadKey(true);
                while(info.Key != ConsoleKey.Enter)
                {
                    if (info.Key != ConsoleKey.Backspace)
                    {
                        User.passwordStr += info.KeyChar;
                        info = Console.ReadKey(true);
                    }
                    else
                    {
                        User.passwordStr.Remove(User.passwordStr.Length - 1);
                        info = Console.ReadKey(true);
                    }
                }
                for (int i = 0; i < User.passwordStr.Length; i++)
                    Console.Write("*");
                #endregion

                Console.WriteLine();

                #region To User
                bool toStrBool = true;
                while (toStrBool)
                {
                    Console.Write("Enter target email address: ");
                    User.toStr = Console.ReadLine();
                    if (Constants.regEmail.IsMatch(User.toStr))
                        toStrBool = false;
                    else
                    {
                        Console.WriteLine("Email address entered was not in proper format. Please retry");
                        toStrBool = false;
                    }
                }
                #endregion

                #region Message Subject
                bool messageSubjectBool = true;
                while (messageSubjectBool)
                {
                    Console.Write("Enter message subject: ");
                    User.subjectStr = Console.ReadLine();
                    if (Constants.regString.IsMatch(User.subjectStr))
                        messageSubjectBool = false;
                    else
                    {
                        Console.WriteLine("Subject entered was not in proper format. Please retry");
                        messageSubjectBool = true;
                    }
                }
                #endregion

                #region Message Body
                bool messageBodyBool = true;
                while (messageBodyBool)
                {
                    Console.Write("Enter message body: ");
                    User.bodyStr = Console.ReadLine();
                    if (Constants.regString.IsMatch(User.bodyStr))
                        messageBodyBool = false;
                    else
                    {
                        Console.WriteLine("Body entered was not in proper format. Please retry");
                        messageBodyBool = true;
                    }
                }
                #endregion

                var msg = new MailMessage();
                msg.From = new MailAddress(User.fromStr, User.displayNameStr);
                msg.To.Add(new MailAddress(User.toStr));
                msg.Subject=User.subjectStr;
                msg.Body=User.bodyStr;
                smtp.EnableSsl = true;
                smtp.Credentials = new System.Net.NetworkCredential(User.fromStr, User.passwordStr);
                msg.IsBodyHtml = false;
                msg.ReplyToList.Add(new MailAddress(User.fromStr));
                smtp.Send(msg);
                Console.WriteLine("Email despatched!");
            }
            catch (Exception e)
            {
                Console.WriteLine(String.Format("{0}\n{1}\n{2}\n{3}\n{4}\n", e, e.Source, e.Message, e.StackTrace, e.InnerException));
            }
            finally
            {
            }
        }
    }
}