From 658cb28e1cdfc832bff2f679a04dbc36e2688bfd Mon Sep 17 00:00:00 2001
From: TekH <h.tek@digitaldata.works>
Date: Thu, 22 Oct 2026 01:35:18 +0200
Subject: [PATCH] Add notification infrastructure project

---
 .../DependencyInjection.cs                    | 43 ++++++++++++++++++
 ...nerator.Infrastructure.Notification.csproj | 19 ++++++++
 .../EnvelopeNotificationService.cs            | 44 +++++++++++++++++++
 3 files changed, 106 insertions(+)
 create mode 100644 EnvelopeGenerator.Infrastructure.Notification/DependencyInjection.cs
 create mode 100644 EnvelopeGenerator.Infrastructure.Notification/EnvelopeGenerator.Infrastructure.Notification.csproj
 create mode 100644 EnvelopeGenerator.Infrastructure.Notification/EnvelopeNotificationService.cs

diff --git a/EnvelopeGenerator.Infrastructure.Notification/DependencyInjection.cs b/EnvelopeGenerator.Infrastructure.Notification/DependencyInjection.cs
new file mode 100644
index 00000000..c84c778e
--- /dev/null
+++ b/EnvelopeGenerator.Infrastructure.Notification/DependencyInjection.cs
@@ -0,0 +1,43 @@
+using DigitalData.MessagingService.Client;
+using DigitalData.MessagingService.Domain.Entities;
+using DigitalData.MessagingService.RabbitMQ;
+using EnvelopeGenerator.Application.Common.Interfaces.Services.Notification;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace EnvelopeGenerator.Infrastructure.Notification;
+
+public static class DependencyInjection
+{
+    public static IServiceCollection AddNotificationInfrastructure(this IServiceCollection services, IConfiguration configuration)
+    {
+        var rMqConfig = configuration.GetSection("RabbitMQ").Get<RabbitMqConfiguration>()
+            ?? throw new ArgumentNullException(nameof(RabbitMqConfiguration), "RabbitMQ configuration is missing");
+
+        EmailSender.ConnectRabbitMq(config =>
+        {
+            config.HostName = rMqConfig.HostName;
+            config.Port = rMqConfig.Port;
+            config.UserName = rMqConfig.UserName;
+            config.Password = rMqConfig.Password;
+
+            config.VirtualHost = "/";
+            config.QueueName = "emailprofiler.email.outbox";
+            config.ExchangeName = "emailprofiler.emails";
+            config.RoutingKey = "email.outbox";
+            config.DlqQueueName = "emailprofiler.email.outbox.dlq";
+            config.DlqExchangeName = "emailprofiler.emails.dlq";
+            config.DlqRoutingKey = "email.outbox.dlq";
+        });
+        
+        services.Configure<EmailAccount>(configuration.GetSection("NotificationEmailAccount"));
+
+        services.AddScoped<IEnvelopeNotificationService, EnvelopeNotificationService>();
+        return services;
+    }
+}
diff --git a/EnvelopeGenerator.Infrastructure.Notification/EnvelopeGenerator.Infrastructure.Notification.csproj b/EnvelopeGenerator.Infrastructure.Notification/EnvelopeGenerator.Infrastructure.Notification.csproj
new file mode 100644
index 00000000..469d3e1b
--- /dev/null
+++ b/EnvelopeGenerator.Infrastructure.Notification/EnvelopeGenerator.Infrastructure.Notification.csproj
@@ -0,0 +1,19 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+	<TargetFrameworks>net8.0;</TargetFrameworks>
+	<ImplicitUsings>enable</ImplicitUsings>
+	<Nullable>enable</Nullable>
+	<LangVersion>latest</LangVersion>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="DigitalData.MessagingService.Client" Version="1.0.5" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Binder" Version="10.0.10" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\EnvelopeGenerator.Application\EnvelopeGenerator.Application.csproj" />
+  </ItemGroup>
+
+</Project>
diff --git a/EnvelopeGenerator.Infrastructure.Notification/EnvelopeNotificationService.cs b/EnvelopeGenerator.Infrastructure.Notification/EnvelopeNotificationService.cs
new file mode 100644
index 00000000..79e87020
--- /dev/null
+++ b/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);
+    }
+}