transactions

back/services/engine/mailing/EmailService.cs

@@ -0,0 +1,66 @@
+using back.Options;
+using Microsoft.Extensions.Options;
+using System.Net;
+using System.Net.Mail;
+
+namespace back.services.engine.mailing;
+
+public class EmailService(IOptions<MailServerOptions> options) : IEmailService
+{
+    public async Task SendEmailAsync(List<string> tos, string from, string subject, string body, Dictionary<string, object>? attachments = null, CancellationToken cancellationToken = default)
+    {
+        try 
+        {
+            await Parallel.ForEachAsync(tos, async (to, cancellationToken) => {
+                await SendEmailAsync(to, from, subject, body, attachments, cancellationToken);
+            });
+        }
+        catch (Exception ex)
+        {
+            // Log the exception or handle it as needed
+            Console.WriteLine($"Error sending email to multiple recipients: {ex.Message}");
+        }
+    }
+    public async Task SendEmailAsync(string to, string from, string subject, string body, Dictionary<string, object>? attachments = null, CancellationToken cancellationToken = default)
+    {
+        try 
+        {
+            using var message = new MailMessage();
+            message.From = new MailAddress(from);
+            message.To.Add(to);
+            message.Subject = subject;
+            message.Body = body;
+            message.IsBodyHtml = true;
+            message.Priority = MailPriority.Normal;
+            message.DeliveryNotificationOptions = DeliveryNotificationOptions.Never;
+            
+            if (attachments != null)
+            {
+                foreach (var attachment in attachments)
+                {
+                    if (attachment.Value is FileStream fileStream)
+                    {
+                        message.Attachments.Add(new Attachment(fileStream, attachment.Key));
+                    }
+                    if (attachment.Value is string filePath && File.Exists(filePath))
+                    {
+                        message.Attachments.Add(new Attachment(filePath));
+                    }
+                }
+            }
+
+            using var cliente = new SmtpClient(options.Value.SmtpServer, options.Value.Puerto);
+            cliente.UseDefaultCredentials = false;
+            cliente.Credentials = new NetworkCredential(options.Value.Usuario, options.Value.Password);
+            cliente.EnableSsl = options.Value.EnableSsl;
+            cliente.DeliveryMethod = SmtpDeliveryMethod.Network;
+
+            await cliente.SendMailAsync(message, cancellationToken);
+        }
+        catch (Exception ex)
+        {
+            // Log the exception or handle it as needed
+            Console.WriteLine($"Error sending email: {ex.Message}");
+        }
+    }
+}