feat: consume transactional email notifications

Add contract validation, SMTP delivery results, terminal failure context, neutral development seeding, and local Docker setup. Ref: IT-1033
2026-08-04 12:32:28 +03:00
parent b8435ac07b
commit 2757869176
37 changed files with 1465 additions and 122 deletions
@@ -0,0 +1,47 @@
+namespace HrynCo.NotificationService.Worker.Services.EmailProcessing;
+
+using System.Net;
+using System.Net.Mail;
+using System.Text;
+using HrynCo.NotificationService.DAL.Abstract.Providers;
+
+internal sealed class SmtpEmailSender : ISmtpEmailSender
+{
+    public async Task SendAsync(
+        SmtpChannelSettings settings,
+        RenderedEmail email,
+        string recipientEmail,
+        string recipientName,
+        CancellationToken cancellationToken)
+    {
+        using var client = new SmtpClient(settings.Host, settings.Port)
+        {
+            EnableSsl = settings.UseSsl,
+            Credentials = string.IsNullOrWhiteSpace(settings.Username)
+                ? null
+                : new NetworkCredential(settings.Username, settings.Password)
+        };
+
+        using var mail = new MailMessage
+        {
+            From = new MailAddress(settings.FromEmail, settings.FromName),
+            Subject = email.Subject,
+            Body = email.TextBody,
+            IsBodyHtml = false,
+            BodyEncoding = Encoding.UTF8,
+            SubjectEncoding = Encoding.UTF8
+        };
+
+        if (!string.IsNullOrWhiteSpace(email.HtmlBody))
+        {
+            AlternateView html = AlternateView.CreateAlternateViewFromString(
+                email.HtmlBody,
+                Encoding.UTF8,
+                "text/html");
+            mail.AlternateViews.Add(html);
+        }
+
+        mail.To.Add(new MailAddress(recipientEmail, recipientName));
+        await client.SendMailAsync(mail, cancellationToken);
+    }
+}