добавила абстрактный класс для работы с письмами

SushiBarBusinessLogic/MailWorker/AbstractMailWorker.cs

@@ -0,0 +1,77 @@
+using Microsoft.Extensions.Logging;
+using SushiBarContracts.BindingModel;
+using SushiBarContracts.BusinessLogicsContracts;
+
+namespace SushiBarBusinessLogic.MailWorker
+{
+    public abstract class AbstractMailWorker
+    {
+        protected string _mailLogin = string.Empty;
+        protected string _mailPassword = string.Empty;
+        protected string _smtpClientHost = string.Empty;
+        protected int _smtpClientPort;
+        protected string _popHost = string.Empty;
+        protected int _popPort;
+        private readonly IMessageInfoLogic _messageInfoLogic;
+        private readonly ILogger _logger;
+        public AbstractMailWorker(ILogger<AbstractMailWorker> logger, 
+            IMessageInfoLogic messageInfoLogic)
+        {
+            _logger = logger;
+            _messageInfoLogic = messageInfoLogic;
+        }
+        public void MailConfig(MailConfigBindingModel config)
+        {
+            _mailLogin = config.MailLogin;
+            _mailPassword = config.MailPassword;
+            _smtpClientHost = config.SmtpClientHost;
+            _smtpClientPort = config.SmtpClientPort;
+            _popHost = config.PopHost;
+            _popPort = config.PopPort;
+            _logger.LogDebug("Config: {login}, {password}, {clientHost}, {clientPOrt}, {popHost}, {popPort}",
+                _mailLogin, _mailPassword, _smtpClientHost, _smtpClientPort, _popHost, _popPort);
+        }
+        public async void MailSendAsync(MailSendInfoBindingModel info)
+        {
+            if (string.IsNullOrEmpty(_mailLogin) || string.IsNullOrEmpty(_mailPassword))
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(_smtpClientHost) || _smtpClientPort == 0)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(info.MailAddress) || 
+                string.IsNullOrEmpty(info.Subject) || 
+                string.IsNullOrEmpty(info.Text))
+            {
+                return;
+            }
+            _logger.LogDebug("Send Mail: {To}, {Subject}", info.MailAddress, info.Subject);
+            await SendMailAsync(info);
+        }
+        public async void MailCheck()
+        {
+            if (string.IsNullOrEmpty(_mailLogin) || string.IsNullOrEmpty(_mailPassword))
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(_popHost) || _popPort == 0)
+            {
+                return;
+            }
+            if (_messageInfoLogic == null)
+            {
+                return;
+            }
+            var list = await ReceiveMailAsync();
+            _logger.LogDebug("Check Mail: {Count} new mails", list.Count);
+            foreach (var mail in list)
+            {
+                _messageInfoLogic.Create(mail);
+            }
+        }
+        protected abstract Task SendMailAsync(MailSendInfoBindingModel info);
+        protected abstract Task<List<MessageInfoBindingModel>> ReceiveMailAsync();
+    }
+}