Add notification infrastructure project

EnvelopeGenerator.Infrastructure.Notification/EnvelopeNotificationService.cs

@@ -0,0 +1,44 @@
+using DigitalData.Core.Abstraction.Application.Repository;
+using DigitalData.Core.Exceptions;
+using DigitalData.MessagingService.Application.Common.Dto;
+using DigitalData.MessagingService.Client;
+using DigitalData.MessagingService.Domain.Entities;
+using EnvelopeGenerator.Application.Common.Interfaces.Services.Notification;
+using EnvelopeGenerator.Domain.Entities;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Options;
+
+namespace EnvelopeGenerator.Infrastructure.Notification;
+
+public class EnvelopeNotificationService(IOptions<EmailAccount> EmailAccountOptions, IRepository<EmailTemplate> TempRepo) : IEnvelopeNotificationService
+{    
+    public async Task Notify(string email, DocumentSignedNotification documentSigned, CancellationToken cancel = default)
+    {
+        var template = await TempRepo.Where(t => t.Name == "DocumentCompleted").FirstOrDefaultAsync(cancel)
+            ?? throw new NotFoundException("DocumentCompleted email template not found");
+        var subjectTemplate = Replace(template.Subject, documentSigned);
+        var bodyTemplate = Replace(template.Body, documentSigned);
+
+        await EmailSender.Send(new EmailContext()
+        {
+            Body = bodyTemplate,
+            Subject = subjectTemplate,
+            Recipients = [email],
+            Sender = EmailAccountOptions.Value,
+            Attachments = [new EmailAttachmentDto()
+            {
+                FileName = "unterzeichnetes-dokument.pdf",
+                Content = documentSigned.Attachment
+            }]
+        });
+    }
+
+    private static string Replace(string template, DocumentSignedNotification documentSigned)
+    {
+        return template
+            .Replace("[DOCUMENT_TITLE]", documentSigned.DocumentTitle)
+            .Replace("[NAME_PORTAL]", documentSigned.NamePortal)
+            .Replace("[NAME_RECEIVER]", documentSigned.NameReceiver);
+    }
+}