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

namespace CaseAccountingBusinessLogic.BusinessLogics
{
    public class MailSender
    {
        private string mailLogin = string.Empty;
        private string mailPassword = string.Empty;
        private string smtpClientHost = string.Empty;
        private int smtpClientPort;

        public MailSender(){}

        public void MailConfig(MailConfigBindingModel config)
        {
            mailLogin = config.MailLogin;
            mailPassword = config.MailPassword;
            smtpClientHost = config.SmtpClientHost;
            smtpClientPort = config.SmtpClientPort;
        }

        public async void SendMailAsync(MailSendInfoBindingModel info)
        {
            using var objMailMessage = new MailMessage();
            using var objSmtpClient = new SmtpClient(smtpClientHost, smtpClientPort);
            try
            {
                objMailMessage.From = new MailAddress(mailLogin);
                objMailMessage.To.Add(new MailAddress(info.MailAddress));
                objMailMessage.Subject = info.Subject;
                objMailMessage.Body = info.Text;
                objMailMessage.SubjectEncoding = Encoding.UTF8;
                objMailMessage.BodyEncoding = Encoding.UTF8;

                MemoryStream ms = new(info.File);
                objMailMessage.Attachments.Add(new Attachment(ms, "report.pdf", "application/pdf"));

                objSmtpClient.UseDefaultCredentials = false;
                objSmtpClient.EnableSsl = true;
                objSmtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;
                objSmtpClient.Credentials = new NetworkCredential(mailLogin, mailPassword);

                await Task.Run(() => objSmtpClient.Send(objMailMessage));
            }
            catch (Exception)
            {
                throw;
            }
        }
    }
}