[FA-10] Adds user service and authentication service

FictionArchive.Service.AuthenticationService/Controllers/AuthenticationWebhookController.cs

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+using FictionArchive.Service.AuthenticationService.Models.Requests;
+using FictionArchive.Service.AuthenticationService.Models.IntegrationEvents;
+using FictionArchive.Service.Shared.Services.EventBus;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+
+namespace FictionArchive.Service.AuthenticationService.Controllers
+{
+    [Route("api/[controller]")]
+    [ApiController]
+    public class AuthenticationWebhookController : ControllerBase
+    {
+        private readonly IEventBus _eventBus;
+
+        public AuthenticationWebhookController(IEventBus eventBus)
+        {
+            _eventBus = eventBus;
+        }
+
+        [HttpPost(nameof(UserRegistered))]
+        public async Task<ActionResult> UserRegistered([FromBody] UserRegisteredWebhookPayload payload)
+        {
+            var authUserAddedEvent = new AuthUserAddedEvent
+            {
+                OAuthProviderId = payload.OAuthProviderId,
+                InviterOAuthProviderId = payload.InviterOAuthProviderId,
+                EventUserEmail = payload.EventUserEmail,
+                EventUserUsername = payload.EventUserUsername
+            };
+
+            await _eventBus.Publish(authUserAddedEvent);
+
+            return Ok();
+        }
+    }
+}

FictionArchive.Service.AuthenticationService/Dockerfile

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+FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS base
+USER $APP_UID
+WORKDIR /app
+EXPOSE 8080
+EXPOSE 8081
+
+FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build
+ARG BUILD_CONFIGURATION=Release
+WORKDIR /src
+COPY ["FictionArchive.Service.AuthenticationService/FictionArchive.Service.AuthenticationService.csproj", "FictionArchive.Service.AuthenticationService/"]
+RUN dotnet restore "FictionArchive.Service.AuthenticationService/FictionArchive.Service.AuthenticationService.csproj"
+COPY . .
+WORKDIR "/src/FictionArchive.Service.AuthenticationService"
+RUN dotnet build "./FictionArchive.Service.AuthenticationService.csproj" -c $BUILD_CONFIGURATION -o /app/build
+
+FROM build AS publish
+ARG BUILD_CONFIGURATION=Release
+RUN dotnet publish "./FictionArchive.Service.AuthenticationService.csproj" -c $BUILD_CONFIGURATION -o /app/publish /p:UseAppHost=false
+
+FROM base AS final
+WORKDIR /app
+COPY --from=publish /app/publish .
+ENTRYPOINT ["dotnet", "FictionArchive.Service.AuthenticationService.dll"]

FictionArchive.Service.AuthenticationService/FictionArchive.Service.AuthenticationService.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+    <PropertyGroup>
+        <TargetFramework>net8.0</TargetFramework>
+        <Nullable>enable</Nullable>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <DockerDefaultTargetOS>Linux</DockerDefaultTargetOS>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="8.0.7" />
+        <PackageReference Include="Swashbuckle.AspNetCore" Version="6.6.2"/>
+    </ItemGroup>
+
+    <ItemGroup>
+      <Content Include="..\.dockerignore">
+        <Link>.dockerignore</Link>
+      </Content>
+    </ItemGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\FictionArchive.Service.Shared\FictionArchive.Service.Shared.csproj" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <Folder Include="Controllers\" />
+    </ItemGroup>
+
+</Project>

FictionArchive.Service.AuthenticationService/FictionArchive.Service.AuthenticationService.http

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+@FictionArchive.Service.AuthenticationService_HostAddress = http://localhost:5091
+
+GET {{FictionArchive.Service.AuthenticationService_HostAddress}}/weatherforecast/
+Accept: application/json
+
+###

FictionArchive.Service.AuthenticationService/Models/IntegrationEvents/AuthUserAddedEvent.cs

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+using FictionArchive.Service.Shared.Services.EventBus;
+
+namespace FictionArchive.Service.AuthenticationService.Models.IntegrationEvents;
+
+public class AuthUserAddedEvent : IIntegrationEvent
+{
+    public string OAuthProviderId { get; set; }
+    
+    public string InviterOAuthProviderId { get; set; }
+
+    // The email of the user that created the event
+    public string EventUserEmail { get; set; }
+
+    // The username of the user that created the event
+    public string EventUserUsername { get; set; }
+}

FictionArchive.Service.AuthenticationService/Models/Requests/UserRegisteredWebhookPayload.cs

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+namespace FictionArchive.Service.AuthenticationService.Models.Requests;
+
+public class UserRegisteredWebhookPayload
+{
+    // The body of the notification message
+    public string Body { get; set; }
+    
+    public string OAuthProviderId { get; set; }
+    
+    public string InviterOAuthProviderId { get; set; }
+
+    // The email of the user that created the event
+    public string EventUserEmail { get; set; }
+
+    // The username of the user that created the event
+    public string EventUserUsername { get; set; }
+}

FictionArchive.Service.AuthenticationService/Program.cs

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+using FictionArchive.Service.Shared;
+using FictionArchive.Service.Shared.Services.EventBus.Implementations;
+
+namespace FictionArchive.Service.AuthenticationService;
+
+public class Program
+{
+    public static void Main(string[] args)
+    {
+        var builder = WebApplication.CreateBuilder(args);
+
+        // Add services to the container.
+
+        builder.Services.AddControllers();
+        // Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
+        builder.Services.AddEndpointsApiExplorer();
+        builder.Services.AddSwaggerGen();
+
+        #region Event Bus
+
+        builder.Services.AddRabbitMQ(opt =>
+        {
+            builder.Configuration.GetSection("RabbitMQ").Bind(opt);
+        });
+        
+        #endregion
+
+        builder.Services.AddHealthChecks();
+        
+        var app = builder.Build();
+
+        // Configure the HTTP request pipeline.
+        if (app.Environment.IsDevelopment())
+        {
+            app.UseSwagger();
+            app.UseSwaggerUI();
+        }
+
+        app.UseHttpsRedirection();
+
+        app.MapHealthChecks("/healthz");
+        
+        app.UseAuthorization();
+        
+        app.MapControllers();
+
+        app.Run();
+    }
+}

FictionArchive.Service.AuthenticationService/Properties/launchSettings.json

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+{
+  "$schema": "http://json.schemastore.org/launchsettings.json",
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:23522",
+      "sslPort": 44397
+    }
+  },
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "applicationUrl": "http://localhost:5091",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "https": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "applicationUrl": "https://localhost:7223;http://localhost:5091",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

FictionArchive.Service.AuthenticationService/appsettings.Development.json

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+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

FictionArchive.Service.AuthenticationService/appsettings.json

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+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "RabbitMQ": {
+    "ConnectionString": "amqp://localhost",
+    "ClientIdentifier": "AuthenticationService"
+  },
+  "AllowedHosts": "*"
+}