[FA-5] Adds image support with proper S3 upload and replacement after upload

Reviewed-on: #30

.gitignore

@@ -134,4 +134,9 @@ $RECYCLE.BIN/
 _NCrunch*
 
 # Local user appsettings
-appsettings.Local.json
+appsettings.Local.json
+
+# Fusion Builds
+schema.graphql
+*.fsp
+gateway.fgp

AGENTS.md

@@ -0,0 +1,36 @@
+# Repository Guidelines
+
+## Project Structure & Module Organization
+- `FictionArchive.sln` ties together the gateway and all subgraph services.
+- `FictionArchive.API`: Fusion gateway host; GraphQL endpoint at `/graphql`, health at `/healthz`, gateway configuration in `gateway.fgp`, and helper script `build_gateway.py`.
+- `FictionArchive.Service.*`: GraphQL subgraphs (`AuthenticationService`, `FileService`, `NovelService`, `SchedulerService`, `TranslationService`, `UserService`) plus shared helpers in `FictionArchive.Service.Shared`.
+- `FictionArchive.Common`: shared enums and hosting extensions used across services.
+- Environment/config files live beside each service (`appsettings*.json`, `Properties/launchSettings.json`); build outputs under `bin/` and `obj/` should stay untracked.
+
+## Build, Test, and Development Commands
+- `dotnet restore` then `dotnet build FictionArchive.sln` (Debug by default) to validate all projects compile.
+- Run the gateway: `dotnet run --project FictionArchive.API` (serves HTTPS; ensure certificates are trusted locally).
+- Run a subgraph locally: `dotnet run --project FictionArchive.Service.NovelService` (or any other service) to debug a single domain.
+- Rebuild the Fusion gateway config after subgraph changes: `python FictionArchive.API/build_gateway.py` (requires Python 3 and the `fusion` CLI on PATH; uses `gateway_skip.txt` to omit services).
+- If tests are added, prefer `dotnet test FictionArchive.sln` to cover the whole solution.
+
+## Coding Style & Naming Conventions
+- Target .NET 8/C# 12; use 4-space indentation and file-scoped namespaces where practical.
+- PascalCase for classes, records, interfaces, and public members; camelCase for locals/parameters; suffix async methods with `Async`.
+- Favor dependency injection and extension methods for service wiring (see `Program.cs` files and `FictionArchive.Service.Shared/Extensions`).
+- Keep GraphQL schema files and other generated artifacts out of commits unless intentionally versioned.
+
+## Testing Guidelines
+- No dedicated test projects exist yet; when adding tests, create `*.Tests` projects aligned to each service (e.g., `FictionArchive.Service.NovelService.Tests`) and name test files `*Tests.cs`.
+- Prefer xUnit with fluent assertions; aim for coverage on controllers/resolvers, integration events, and critical extension methods.
+- Use in-memory fakes or test containers for external dependencies to keep tests deterministic.
+
+## Commit & Pull Request Guidelines
+- Follow the observed pattern: `[FA-123] Short, imperative summary` (reference the tracker ID and keep scope focused).
+- Keep commits small and self-contained; include relevant config/schema updates produced by the gateway build script when behavior changes.
+- PRs should describe the problem, the solution, and any follow-up work; link to issues, attach GraphQL schema diffs or sample queries when applicable, and note any manual steps (migrations, secrets).
+
+## Security & Configuration Tips
+- Do not commit secrets; use user secrets or environment variables for API keys and connection strings referenced in `appsettings*.json`.
+- Verify HTTPS is enabled locally; adjust `launchSettings.json` only when necessary and document non-default ports.
+- Regenerate `gateway.fgp` after changing subgraph schemas to avoid stale compositions.

FictionArchive.API/Controllers/TestController.cs

@@ -1,75 +0,0 @@
-using Microsoft.AspNetCore.Http;
-using Microsoft.AspNetCore.Mvc;
-using Microsoft.EntityFrameworkCore;
-
-namespace FictionArchive.API.Controllers
-{
-    [Route("api/[controller]")]
-    [ApiController]
-    public class TestController : ControllerBase
-    {
-        /*private readonly FictionArchiveDbContext _dbContext;
-        private readonly ISourceAdapter _novelpiaAdapter;
-        private readonly ITranslationEngineAdapter _translationEngine;
-
-        public TestController(ISourceAdapter novelpiaAdapter, FictionArchiveDbContext dbContext, ITranslationEngineAdapter translationEngine)
-        {
-            _novelpiaAdapter = novelpiaAdapter;
-            _dbContext = dbContext;
-            _translationEngine = translationEngine;
-        }
-
-        [HttpGet("GetNovel")]
-        public async Task<Novel> GetNovel(string novelUrl)
-        {
-            var novel = await _novelpiaAdapter.GetMetadata(novelUrl);
-            novel.Source = new Source()
-            {
-                Name = "Novelpia",
-                Id = 1,
-                Url = "https://novelpia.com"
-            };
-            _dbContext.Novels.Add(novel);
-            await _dbContext.SaveChangesAsync();
-            return novel;
-        }
-        
-        [HttpGet("GetChapter")]
-        public async Task<string> GetChapter(uint novelId, uint chapterNumber)
-        {
-            var novel = await _dbContext.Novels.Include(n => n.Chapters).ThenInclude(c => c.Translations).FirstOrDefaultAsync(n => n.Id == novelId);
-            var chapter = novel.Chapters.FirstOrDefault(c => c.Order == chapterNumber);
-            var rawChapter = await _novelpiaAdapter.GetRawChapter(chapter.Url);
-            chapter.Translations.Add(new ChapterTranslation()
-            {
-                Language = novel.RawLanguage,
-                Body =  rawChapter
-            });
-            await _dbContext.SaveChangesAsync();
-            return rawChapter;
-        }
-
-        [HttpPost("TranslateChapter")]
-        public async Task<ChapterTranslation> TranslateChapter(uint novelId, uint chapterNumber, Language to)
-        {
-            var novel = await _dbContext.Novels.Include(n => n.Chapters)
-                .ThenInclude(c => c.Translations).FirstOrDefaultAsync(novel => novel.Id == novelId);
-            var chapter = novel.Chapters.FirstOrDefault(c => c.Order == chapterNumber);
-            var chapterRaw = chapter.Translations.FirstOrDefault(ct => ct.Language == novel.RawLanguage);
-            var newTranslation = new ChapterTranslation()
-            {
-                Language = to,
-                TranslationEngine = new TranslationEngine()
-                {
-                    Name = "DeepL"
-                }
-            };
-            var translation = await _translationEngine.GetTranslation(chapterRaw.Body, novel.RawLanguage, to);
-            newTranslation.Body = translation;
-            chapter.Translations.Add(newTranslation);
-            await _dbContext.SaveChangesAsync();
-
-            return newTranslation;
-        }*/
-    }
-}

FictionArchive.API/FictionArchive.API.csproj

@@ -11,6 +11,7 @@
         <PackageReference Include="HotChocolate.AspNetCore" Version="15.1.11" />
         <PackageReference Include="HotChocolate.Data" Version="15.1.11" />
         <PackageReference Include="HotChocolate.Data.EntityFramework" Version="15.1.11" />
+        <PackageReference Include="HotChocolate.Fusion" Version="15.1.11" />
         <PackageReference Include="HotChocolate.Types.Scalars" Version="15.1.11" />
         <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="9.0.11">
           <PrivateAssets>all</PrivateAssets>
@@ -20,6 +21,11 @@
         <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="8.0.7" />
         <PackageReference Include="Swashbuckle.AspNetCore" Version="6.6.2"/>
     </ItemGroup>
+    
+    <!-- Builds the Fusion graph file before building the application itself -->
+    <Target Name="RunFusionBuild" BeforeTargets="BeforeBuild">
+        <Exec Command="python build_gateway.py" WorkingDirectory="$(ProjectDir)" />
+    </Target>
 
     <ItemGroup>
       <Content Include="..\.dockerignore">
@@ -28,8 +34,11 @@
     </ItemGroup>
 
     <ItemGroup>
-      <Folder Include="Controllers\" />
       <Folder Include="GraphQL\" />
     </ItemGroup>
 
+    <ItemGroup>
+      <ProjectReference Include="..\FictionArchive.Service.Shared\FictionArchive.Service.Shared.csproj" />
+    </ItemGroup>
+
 </Project>

FictionArchive.API/Program.cs

@@ -1,3 +1,5 @@
+using FictionArchive.Service.Shared.Extensions;
+
 namespace FictionArchive.API;
 
 public class Program
@@ -6,38 +8,26 @@ public class Program
     {
         var builder = WebApplication.CreateBuilder(args);
 
-        // Add services to the container.
-
-        // OpenAPI & REST
-        builder.Services.AddControllers();
-        // Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
-        builder.Services.AddEndpointsApiExplorer();
-        builder.Services.AddSwaggerGen();
-        
-        builder.Services.AddMemoryCache();
-
         builder.Services.AddHealthChecks();
+        
+        #region Fusion Gateway
+
+        builder.Services.AddHttpClient("Fusion");
+
+        builder.Services
+            .AddFusionGatewayServer()
+            .ConfigureFromFile("gateway.fgp")
+            .CoreBuilder.ApplySaneDefaults();
+        
+        #endregion
 
         var app = builder.Build();
 
-        // Configure the HTTP request pipeline.
-        if (app.Environment.IsDevelopment())
-        {
-            app.UseSwagger();
-            app.UseSwaggerUI();
-        }
-
         app.UseHttpsRedirection();
-
-        app.UseAuthentication();
-
-        app.UseAuthorization();
-
-        app.MapGraphQL();
         
         app.MapHealthChecks("/healthz");
 
-        app.MapControllers();
+        app.MapGraphQL();
 
         app.Run();
     }

FictionArchive.API/Properties/launchSettings.json

@@ -23,7 +23,7 @@
       "commandName": "Project",
       "dotnetRunMessages": true,
       "launchBrowser": true,
-      "launchUrl": "swagger",
+      "launchUrl": "graphql",
       "applicationUrl": "https://localhost:7063;http://localhost:5234",
       "environmentVariables": {
         "ASPNETCORE_ENVIRONMENT": "Development"

FictionArchive.API/build_gateway.py

@@ -0,0 +1,129 @@
+#!/usr/bin/env python3
+import subprocess
+import sys
+import os
+from pathlib import Path
+
+# ----------------------------------------
+# Helpers
+# ----------------------------------------
+
+def run(cmd, cwd=None):
+    """Run a command and exit on failure."""
+    print(f"> {' '.join(cmd)}")
+    result = subprocess.run(cmd, cwd=cwd)
+    if result.returncode != 0:
+        print(f"ERROR: command failed in {cwd or os.getcwd()}")
+        sys.exit(result.returncode)
+
+
+def load_skip_list(skip_file: Path):
+    if not skip_file.exists():
+        print(f"WARNING: skip-projects.txt not found at {skip_file}")
+        return set()
+
+    lines = skip_file.read_text().splitlines()
+    skip = {line.strip() for line in lines
+            if line.strip() and not line.strip().startswith("#")}
+    print("Skip list:", ", ".join(skip) if skip else "(none)")
+    return skip
+
+
+# ----------------------------------------
+# Setup paths
+# ----------------------------------------
+
+script_dir = Path(__file__).parent.resolve()
+services_dir = (script_dir / "..").resolve()
+api_dir = services_dir / "FictionArchive.API"
+
+print(f"Script dir:   {script_dir}")
+print(f"Services dir: {services_dir}")
+
+skip_file = script_dir / "gateway_skip.txt"
+skip_list = load_skip_list(skip_file)
+
+# ----------------------------------------
+# Find services
+# ----------------------------------------
+
+print("\n----------------------------------------")
+print("  Finding GraphQL services...")
+print("----------------------------------------")
+
+service_dirs = [
+    d for d in services_dir.glob("FictionArchive.Service.*")
+    if d.is_dir()
+]
+
+selected_services = []
+
+for d in service_dirs:
+    name = d.name
+    if name in skip_list:
+        print(f"Skipping: {name}")
+    else:
+        print(f"Found:    {name}")
+        selected_services.append(d)
+
+if not selected_services:
+    print("No services to process. Exiting.")
+    sys.exit(0)
+
+# ----------------------------------------
+# Export + pack
+# ----------------------------------------
+
+print("\n----------------------------------------")
+print("  Exporting schemas & packing subgraphs...")
+print("----------------------------------------")
+
+for svc in selected_services:
+    name = svc.name
+    print(f"\nProcessing {name}")
+
+    # Build once
+    run(["dotnet", "build", "-c", "Release"], cwd=svc)
+
+    # Export schema
+    run([
+        "dotnet", "run",
+        "--no-build",
+        "--no-launch-profile",
+        "--",
+        "schema", "export",
+        "--output", "schema.graphql"
+    ], cwd=svc)
+
+    # Pack subgraph
+    run(["fusion", "subgraph", "pack"], cwd=svc)
+
+# ----------------------------------------
+# Compose gateway
+# ----------------------------------------
+
+print("\n----------------------------------------")
+print("  Running fusion compose...")
+print("----------------------------------------")
+
+if not api_dir.exists():
+    print(f"ERROR: FictionArchive.API not found at {api_dir}")
+    sys.exit(1)
+
+gateway_file = api_dir / "gateway.fgp"
+if gateway_file.exists():
+    gateway_file.unlink()
+
+for svc in selected_services:
+    name = svc.name
+    print(f"Composing: {name}")
+
+    run([
+        "fusion", "compose",
+        "-p", "gateway.fgp",
+        "-s", f"..{os.sep}{name}"
+    ], cwd=api_dir)
+
+print("\n----------------------------------------")
+print("  Fusion build complete!")
+print("----------------------------------------")

FictionArchive.API/gateway_skip.txt

@@ -0,0 +1,4 @@
+# List of service folders to skip
+FictionArchive.Service.Shared
+FictionArchive.Service.AuthenticationService
+FictionArchive.Service.FileService

FictionArchive.Common/Enums/RequestStatus.cs

@@ -0,0 +1,8 @@
+namespace FictionArchive.Common.Enums;
+
+public enum RequestStatus
+{
+    Failed = -1,
+    Pending = 0,
+    Success = 1
+}

FictionArchive.Service.AuthenticationService/Controllers/AuthenticationWebhookController.cs

@@ -0,0 +1,36 @@
+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

@@ -0,0 +1,23 @@
+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

@@ -0,0 +1,29 @@
+<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

@@ -0,0 +1,6 @@
+@FictionArchive.Service.AuthenticationService_HostAddress = http://localhost:5091
+
+GET {{FictionArchive.Service.AuthenticationService_HostAddress}}/weatherforecast/
+Accept: application/json
+
+###

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

@@ -0,0 +1,16 @@
+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

@@ -0,0 +1,17 @@
+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

@@ -0,0 +1,49 @@
+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

@@ -0,0 +1,41 @@
+{
+  "$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

@@ -0,0 +1,8 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

FictionArchive.Service.AuthenticationService/appsettings.json

@@ -0,0 +1,13 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "RabbitMQ": {
+    "ConnectionString": "amqp://localhost",
+    "ClientIdentifier": "AuthenticationService"
+  },
+  "AllowedHosts": "*"
+}

FictionArchive.Service.FileService/Controllers/S3ProxyController.cs

@@ -0,0 +1,49 @@
+using System.Web;
+using Amazon.S3;
+using Amazon.S3.Model;
+using FictionArchive.Service.FileService.Models;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Options;
+
+namespace FictionArchive.Service.FileService.Controllers
+{
+    [Route("api/{*path}")]
+    [ApiController]
+    public class S3ProxyController : ControllerBase
+    {
+        private readonly AmazonS3Client _amazonS3Client;
+        private readonly S3Configuration _s3Configuration;
+
+        public S3ProxyController(AmazonS3Client amazonS3Client, IOptions<S3Configuration> s3Configuration)
+        {
+            _amazonS3Client = amazonS3Client;
+            _s3Configuration = s3Configuration.Value;
+        }
+
+        [HttpGet]
+        public async Task<IActionResult> Get(string path)
+        {
+            var decodedPath = HttpUtility.UrlDecode(path);
+
+            try
+            {
+                var s3Response = await _amazonS3Client.GetObjectAsync(new GetObjectRequest()
+                {
+                    BucketName = _s3Configuration.Bucket,
+                    Key = decodedPath
+                });
+            
+                return new FileStreamResult(s3Response.ResponseStream, s3Response.Headers.ContentType);
+            }
+            catch (AmazonS3Exception e)
+            {
+                if (e.Message == "Key not found")
+                {
+                    return NotFound();
+                }
+                throw;
+            }
+        }
+    }
+}

FictionArchive.Service.FileService/Dockerfile

@@ -0,0 +1,23 @@
+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.ImageService/FictionArchive.Service.ImageService.csproj", "FictionArchive.Service.ImageService/"]
+RUN dotnet restore "FictionArchive.Service.ImageService/FictionArchive.Service.ImageService.csproj"
+COPY . .
+WORKDIR "/src/FictionArchive.Service.ImageService"
+RUN dotnet build "./FictionArchive.Service.ImageService.csproj" -c $BUILD_CONFIGURATION -o /app/build
+
+FROM build AS publish
+ARG BUILD_CONFIGURATION=Release
+RUN dotnet publish "./FictionArchive.Service.ImageService.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.ImageService.dll"]

FictionArchive.Service.FileService/FictionArchive.Service.FileService.csproj

@@ -0,0 +1,30 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+    <PropertyGroup>
+        <TargetFramework>net8.0</TargetFramework>
+        <Nullable>enable</Nullable>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <DockerDefaultTargetOS>Linux</DockerDefaultTargetOS>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <Content Include="..\.dockerignore">
+        <Link>.dockerignore</Link>
+      </Content>
+    </ItemGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\FictionArchive.Service.Shared\FictionArchive.Service.Shared.csproj" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <PackageReference Include="AWSSDK.S3" Version="4.0.13.1" />
+      <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="9.0.0" />
+      <PackageReference Include="Swashbuckle.AspNetCore" Version="10.0.1" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <Folder Include="Controllers\" />
+    </ItemGroup>
+
+</Project>

FictionArchive.Service.FileService/Models/IntegrationEvents/FileUploadRequestCreatedEvent.cs

@@ -0,0 +1,10 @@
+using FictionArchive.Service.Shared.Services.EventBus;
+
+namespace FictionArchive.Service.FileService.Models.IntegrationEvents;
+
+public class FileUploadRequestCreatedEvent : IIntegrationEvent
+{
+    public Guid RequestId { get; set; }
+    public string FilePath { get; set; }
+    public byte[] FileData { get; set; }
+}

FictionArchive.Service.FileService/Models/IntegrationEvents/FileUploadRequestStatusUpdateEvent.cs

@@ -0,0 +1,22 @@
+using FictionArchive.Common.Enums;
+using FictionArchive.Service.Shared.Services.EventBus;
+
+namespace FictionArchive.Service.FileService.Models.IntegrationEvents;
+
+public class FileUploadRequestStatusUpdateEvent : IIntegrationEvent
+{
+    public Guid RequestId { get; set; }
+    public RequestStatus Status { get; set; }
+    
+    #region Success
+    
+    public string? FileAccessUrl { get; set; }
+    
+    #endregion
+    
+    #region Failure
+    
+    public string? ErrorMessage { get; set; }
+    
+    #endregion
+}

FictionArchive.Service.FileService/Models/ProxyConfiguration.cs

@@ -0,0 +1,6 @@
+namespace FictionArchive.Service.FileService.Models;
+
+public class ProxyConfiguration
+{
+    public string BaseUrl { get; set; }
+}

FictionArchive.Service.FileService/Models/S3Configuration.cs

@@ -0,0 +1,9 @@
+namespace FictionArchive.Service.FileService.Models;
+
+public class S3Configuration
+{
+    public string Url { get; set; }
+    public string Bucket { get; set; }
+    public string AccessKey { get; set; }
+    public string SecretKey { get; set; }
+}

FictionArchive.Service.FileService/Program.cs

@@ -0,0 +1,69 @@
+using Amazon.Runtime;
+using Amazon.S3;
+using FictionArchive.Common.Extensions;
+using FictionArchive.Service.FileService.Models;
+using FictionArchive.Service.FileService.Models.IntegrationEvents;
+using FictionArchive.Service.FileService.Services.EventHandlers;
+using FictionArchive.Service.Shared.Extensions;
+using FictionArchive.Service.Shared.Services.EventBus.Implementations;
+using Microsoft.Extensions.Options;
+
+namespace FictionArchive.Service.FileService;
+
+public class Program
+{
+    public static void Main(string[] args)
+    {
+        var builder = WebApplication.CreateBuilder(args);
+        builder.AddLocalAppsettings();
+        
+        builder.Services.AddControllers();
+        // Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
+        builder.Services.AddEndpointsApiExplorer();
+        builder.Services.AddSwaggerGen();
+
+        builder.Services.AddHealthChecks();
+        
+        #region Event Bus
+
+        builder.Services.AddRabbitMQ(opt =>
+        {
+            builder.Configuration.GetSection("RabbitMQ").Bind(opt);
+        })
+        .Subscribe<FileUploadRequestCreatedEvent, FileUploadRequestCreatedEventHandler>();
+        
+        #endregion
+        
+        builder.Services.Configure<ProxyConfiguration>(builder.Configuration.GetSection("ProxyConfiguration"));
+        
+        // Add S3 Client
+        builder.Services.Configure<S3Configuration>(builder.Configuration.GetSection("S3"));
+        builder.Services.AddSingleton<AmazonS3Client>(provider =>
+        {
+            var config = provider.GetRequiredService<IOptions<S3Configuration>>().Value;
+            var s3Config = new AmazonS3Config
+            {
+                ServiceURL = config.Url, // Garage endpoint
+                ForcePathStyle = true, // REQUIRED for Garage
+                AuthenticationRegion = "garage"
+            };
+            return new AmazonS3Client(
+                new BasicAWSCredentials(config.AccessKey, config.SecretKey),
+                s3Config);
+        });
+        
+        var app = builder.Build();
+        
+        if (app.Environment.IsDevelopment())
+        {
+            app.UseSwagger();
+            app.UseSwaggerUI();
+        }
+
+        app.MapHealthChecks("/healthz");
+        
+        app.MapControllers();
+
+        app.Run();
+    }
+}

FictionArchive.Service.FileService/Properties/launchSettings.json

@@ -0,0 +1,39 @@
+{
+  "$schema": "http://json.schemastore.org/launchsettings.json",
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:5546",
+      "sslPort": 44373
+    }
+  },
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "applicationUrl": "http://localhost:5057",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "https": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "applicationUrl": "https://localhost:7247;http://localhost:5057",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

FictionArchive.Service.FileService/Services/EventHandlers/FileUploadRequestCreatedEventHandler.cs

@@ -0,0 +1,58 @@
+using Amazon.S3;
+using Amazon.S3.Model;
+using FictionArchive.Common.Enums;
+using FictionArchive.Service.FileService.Models;
+using FictionArchive.Service.FileService.Models.IntegrationEvents;
+using FictionArchive.Service.Shared.Services.EventBus;
+using Microsoft.Extensions.Options;
+
+namespace FictionArchive.Service.FileService.Services.EventHandlers;
+
+public class FileUploadRequestCreatedEventHandler : IIntegrationEventHandler<FileUploadRequestCreatedEvent>
+{
+    private readonly ILogger<FileUploadRequestCreatedEventHandler> _logger;
+    private readonly AmazonS3Client _amazonS3Client;
+    private readonly IEventBus _eventBus;
+    private readonly S3Configuration _s3Configuration;
+    private readonly ProxyConfiguration _proxyConfiguration;
+
+    public FileUploadRequestCreatedEventHandler(ILogger<FileUploadRequestCreatedEventHandler> logger, AmazonS3Client amazonS3Client, IEventBus eventBus, IOptions<S3Configuration> s3Configuration, IOptions<ProxyConfiguration> proxyConfiguration)
+    {
+        _logger = logger;
+        _amazonS3Client = amazonS3Client;
+        _eventBus = eventBus;
+        _proxyConfiguration = proxyConfiguration.Value;
+        _s3Configuration = s3Configuration.Value;
+    }
+
+    public async Task Handle(FileUploadRequestCreatedEvent @event)
+    {
+        var putObjectRequest = new PutObjectRequest();
+        putObjectRequest.BucketName = _s3Configuration.Bucket;
+        putObjectRequest.Key = @event.FilePath;
+        putObjectRequest.UseChunkEncoding = false; // Needed to avoid an error with Garage
+        
+        using MemoryStream memoryStream = new MemoryStream(@event.FileData);
+        putObjectRequest.InputStream = memoryStream;
+
+        var s3Response = await _amazonS3Client.PutObjectAsync(putObjectRequest);
+        if (s3Response.HttpStatusCode != System.Net.HttpStatusCode.OK)
+        {
+            _logger.LogError("An error occurred while uploading file to S3. Response code: {responsecode}", s3Response.HttpStatusCode);
+            await _eventBus.Publish(new FileUploadRequestStatusUpdateEvent()
+            {
+                RequestId = @event.RequestId,
+                Status = RequestStatus.Failed,
+                ErrorMessage = "An error occurred while uploading file to S3."
+            });
+            return;
+        }
+
+        await _eventBus.Publish(new FileUploadRequestStatusUpdateEvent()
+        {
+            Status = RequestStatus.Success,
+            RequestId = @event.RequestId,
+            FileAccessUrl = _proxyConfiguration.BaseUrl + "/" + @event.FilePath
+        });
+    }
+}

FictionArchive.Service.FileService/appsettings.Development.json

@@ -0,0 +1,8 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

FictionArchive.Service.FileService/appsettings.json

@@ -0,0 +1,22 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "ProxyConfiguration": {
+    "BaseUrl": "https://localhost:7247/api"
+  },
+  "RabbitMQ": {
+    "ConnectionString": "amqp://localhost",
+    "ClientIdentifier": "FileService"
+  },
+  "S3": {
+    "Url": "https://s3.orfl.xyz",
+    "Bucket": "fictionarchive",
+    "AccessKey": "REPLACE_ME",
+    "SecretKey": "REPLACE_ME"
+  },
+  "AllowedHosts": "*"
+}

FictionArchive.Service.NovelService.Tests/FictionArchive.Service.NovelService.Tests.csproj

@@ -0,0 +1,30 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="FluentAssertions" Version="6.12.0" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="9.0.11" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
+    <PackageReference Include="NSubstitute" Version="5.1.0" />
+    <PackageReference Include="xunit" Version="2.9.2" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="coverlet.collector" Version="6.0.2">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\\FictionArchive.Service.NovelService\\FictionArchive.Service.NovelService.csproj" />
+  </ItemGroup>
+
+</Project>

FictionArchive.Service.NovelService.Tests/NovelUpdateServiceTests.cs

@@ -0,0 +1,165 @@
+using FictionArchive.Common.Enums;
+using FictionArchive.Service.FileService.IntegrationEvents;
+using FictionArchive.Service.NovelService.Models.Configuration;
+using FictionArchive.Service.NovelService.Models.Enums;
+using FictionArchive.Service.NovelService.Models.Images;
+using FictionArchive.Service.NovelService.Models.Localization;
+using FictionArchive.Service.NovelService.Models.Novels;
+using FictionArchive.Service.NovelService.Models.SourceAdapters;
+using FictionArchive.Service.NovelService.Services;
+using FictionArchive.Service.NovelService.Services.SourceAdapters;
+using FictionArchive.Service.Shared.Services.EventBus;
+using FluentAssertions;
+using HtmlAgilityPack;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging.Abstractions;
+using Microsoft.Extensions.Options;
+using NSubstitute;
+using Xunit;
+
+namespace FictionArchive.Service.NovelService.Tests;
+
+public class NovelUpdateServiceTests
+{
+    private static NovelServiceDbContext CreateDbContext()
+    {
+        var options = new DbContextOptionsBuilder<NovelServiceDbContext>()
+            .UseInMemoryDatabase($"NovelUpdateServiceTests-{Guid.NewGuid()}")
+            .Options;
+
+        return new NovelServiceDbContext(options, NullLogger<NovelServiceDbContext>.Instance);
+    }
+
+    private static NovelCreateResult CreateNovelWithSingleChapter(NovelServiceDbContext dbContext, Source source)
+    {
+        var chapter = new Chapter
+        {
+            Order = 1,
+            Revision = 1,
+            Url = "http://demo/chapter-1",
+            Name = LocalizationKey.CreateFromText("Chapter 1", Language.En),
+            Body = new LocalizationKey { Texts = new List<LocalizationText>() },
+            Images = new List<Image>()
+        };
+
+        var novel = new Novel
+        {
+            Url = "http://demo/novel",
+            ExternalId = "demo-1",
+            Author = new Person { Name = LocalizationKey.CreateFromText("Author", Language.En) },
+            RawLanguage = Language.En,
+            RawStatus = NovelStatus.InProgress,
+            Source = source,
+            Name = LocalizationKey.CreateFromText("Demo Novel", Language.En),
+            Description = LocalizationKey.CreateFromText("Description", Language.En),
+            Chapters = new List<Chapter> { chapter },
+            Tags = new List<NovelTag>()
+        };
+
+        dbContext.Novels.Add(novel);
+        dbContext.SaveChanges();
+
+        return new NovelCreateResult(novel, chapter);
+    }
+
+    private static NovelUpdateService CreateService(
+        NovelServiceDbContext dbContext,
+        ISourceAdapter adapter,
+        IEventBus eventBus,
+        string pendingImageUrl = "https://pending/placeholder.jpg")
+    {
+        var options = Options.Create(new NovelUpdateServiceConfiguration
+        {
+            PendingImageUrl = pendingImageUrl
+        });
+
+        return new NovelUpdateService(dbContext, NullLogger<NovelUpdateService>.Instance, new[] { adapter }, eventBus, options);
+    }
+
+    [Fact]
+    public async Task PullChapterContents_rewrites_images_and_publishes_requests()
+    {
+        using var dbContext = CreateDbContext();
+        var source = new Source { Name = "Demo", Key = "demo", Url = "http://demo" };
+        var (novel, chapter) = CreateNovelWithSingleChapter(dbContext, source);
+
+        var rawHtml = "<p>Hello</p><img src=\"http://img/x1.jpg\" alt=\"first\" /><img src=\"http://img/x2.jpg\" alt=\"second\" />";
+        var image1 = new ImageData { Url = "http://img/x1.jpg", Data = new byte[] { 1, 2, 3 } };
+        var image2 = new ImageData { Url = "http://img/x2.jpg", Data = new byte[] { 4, 5, 6 } };
+
+        var adapter = Substitute.For<ISourceAdapter>();
+        adapter.SourceDescriptor.Returns(new SourceDescriptor { Key = "demo", Name = "Demo", Url = "http://demo" });
+        adapter.GetRawChapter(chapter.Url).Returns(Task.FromResult(new ChapterFetchResult
+        {
+            Text = rawHtml,
+            ImageData = new List<ImageData> { image1, image2 }
+        }));
+
+        var publishedEvents = new List<FileUploadRequestCreatedEvent>();
+        var eventBus = Substitute.For<IEventBus>();
+        eventBus.Publish(Arg.Do<FileUploadRequestCreatedEvent>(publishedEvents.Add)).Returns(Task.CompletedTask);
+        eventBus.Publish(Arg.Any<object>(), Arg.Any<string>()).Returns(Task.CompletedTask);
+
+        var pendingImageUrl = "https://pending/placeholder.jpg";
+        var service = CreateService(dbContext, adapter, eventBus, pendingImageUrl);
+
+        var updatedChapter = await service.PullChapterContents(novel.Id, chapter.Order);
+
+        updatedChapter.Images.Should().HaveCount(2);
+        updatedChapter.Images.Select(i => i.OriginalPath).Should().BeEquivalentTo(new[] { image1.Url, image2.Url });
+        updatedChapter.Images.All(i => i.Id != Guid.Empty).Should().BeTrue();
+
+        var storedHtml = updatedChapter.Body.Texts.Single().Text;
+        var doc = new HtmlDocument();
+        doc.LoadHtml(storedHtml);
+        var imgNodes = doc.DocumentNode.SelectNodes("//img");
+        imgNodes.Should().NotBeNull();
+        imgNodes!.Count.Should().Be(2);
+        imgNodes.Should().OnlyContain(node => node.GetAttributeValue("src", string.Empty) == pendingImageUrl);
+        imgNodes.Select(node => node.GetAttributeValue("alt", string.Empty))
+            .Should()
+            .BeEquivalentTo(updatedChapter.Images.Select(img => img.Id.ToString()));
+
+        publishedEvents.Should().HaveCount(2);
+        publishedEvents.Select(e => e.RequestId).Should().BeEquivalentTo(updatedChapter.Images.Select(i => i.Id));
+        publishedEvents.Select(e => e.FileData).Should().BeEquivalentTo(new[] { image1.Data, image2.Data });
+        publishedEvents.Should().OnlyContain(e => e.FilePath.StartsWith($"{novel.Id}/Images/Chapter-{updatedChapter.Id}/"));
+    }
+
+    [Fact]
+    public async Task PullChapterContents_adds_alt_when_missing()
+    {
+        using var dbContext = CreateDbContext();
+        var source = new Source { Name = "Demo", Key = "demo", Url = "http://demo" };
+        var (novel, chapter) = CreateNovelWithSingleChapter(dbContext, source);
+
+        var rawHtml = "<p>Hi</p><img src=\"http://img/x1.jpg\">";
+        var image = new ImageData { Url = "http://img/x1.jpg", Data = new byte[] { 7, 8, 9 } };
+
+        var adapter = Substitute.For<ISourceAdapter>();
+        adapter.SourceDescriptor.Returns(new SourceDescriptor { Key = "demo", Name = "Demo", Url = "http://demo" });
+        adapter.GetRawChapter(chapter.Url).Returns(Task.FromResult(new ChapterFetchResult
+        {
+            Text = rawHtml,
+            ImageData = new List<ImageData> { image }
+        }));
+
+        var eventBus = Substitute.For<IEventBus>();
+        eventBus.Publish(Arg.Any<FileUploadRequestCreatedEvent>()).Returns(Task.CompletedTask);
+        eventBus.Publish(Arg.Any<object>(), Arg.Any<string>()).Returns(Task.CompletedTask);
+
+        var service = CreateService(dbContext, adapter, eventBus);
+
+        var updatedChapter = await service.PullChapterContents(novel.Id, chapter.Order);
+
+        var storedHtml = updatedChapter.Body.Texts.Single().Text;
+        var doc = new HtmlDocument();
+        doc.LoadHtml(storedHtml);
+        var imgNode = doc.DocumentNode.SelectSingleNode("//img");
+        imgNode.Should().NotBeNull();
+        imgNode!.GetAttributeValue("alt", string.Empty).Should().Be(updatedChapter.Images.Single().Id.ToString());
+        imgNode.GetAttributeValue("src", string.Empty).Should().Be("https://pending/placeholder.jpg");
+    }
+
+    private record NovelCreateResult(Novel Novel, Chapter Chapter);
+}

FictionArchive.Service.NovelService/FictionArchive.Service.NovelService.csproj

@@ -8,6 +8,8 @@
     </PropertyGroup>
 
     <ItemGroup>
+        <PackageReference Include="HotChocolate.AspNetCore.CommandLine" Version="15.1.11" />
+        <PackageReference Include="HtmlAgilityPack" Version="1.12.4" />
         <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="9.0.11">
           <PrivateAssets>all</PrivateAssets>
           <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>

FictionArchive.Service.NovelService/Migrations/20251123203953_AddImages.Designer.cs

@@ -0,0 +1,540 @@
+// <auto-generated />
+using System;
+using FictionArchive.Service.NovelService.Services;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using NodaTime;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace FictionArchive.Service.NovelService.Migrations
+{
+    [DbContext(typeof(NovelServiceDbContext))]
+    [Migration("20251123203953_AddImages")]
+    partial class AddImages
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "9.0.11")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("FictionArchive.Service.NovelService.Models.Images.Image", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<long?>("ChapterId")
+                        .HasColumnType("bigint");
+
+                    b.Property<Instant>("CreatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Instant>("LastUpdatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("NewPath")
+                        .HasColumnType("text");
+
+                    b.Property<string>("OriginalPath")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ChapterId");
+
+                    b.ToTable("Images");
+                });
+
+            modelBuilder.Entity("FictionArchive.Service.NovelService.Models.Localization.LocalizationKey", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<Instant>("CreatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Instant>("LastUpdatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("LocalizationKeys");
+                });
+
+            modelBuilder.Entity("FictionArchive.Service.NovelService.Models.Localization.LocalizationRequest", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<Instant>("CreatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<long>("EngineId")
+                        .HasColumnType("bigint");
+
+                    b.Property<Guid>("KeyRequestedForTranslationId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Instant>("LastUpdatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int>("TranslateTo")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("EngineId");
+
+                    b.HasIndex("KeyRequestedForTranslationId");
+
+                    b.ToTable("LocalizationRequests");
+                });
+
+            modelBuilder.Entity("FictionArchive.Service.NovelService.Models.Localization.LocalizationText", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<Instant>("CreatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int>("Language")
+                        .HasColumnType("integer");
+
+                    b.Property<Instant>("LastUpdatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid?>("LocalizationKeyId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Text")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<long?>("TranslationEngineId")
+                        .HasColumnType("bigint");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("LocalizationKeyId");
+
+                    b.HasIndex("TranslationEngineId");
+
+                    b.ToTable("LocalizationText");
+                });
+
+            modelBuilder.Entity("FictionArchive.Service.NovelService.Models.Novels.Chapter", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<Guid>("BodyId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Instant>("CreatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Instant>("LastUpdatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("NameId")
+                        .HasColumnType("uuid");
+
+                    b.Property<long?>("NovelId")
+                        .HasColumnType("bigint");
+
+                    b.Property<long>("Order")
+                        .HasColumnType("bigint");
+
+                    b.Property<long>("Revision")
+                        .HasColumnType("bigint");
+
+                    b.Property<string>("Url")
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("BodyId");
+
+                    b.HasIndex("NameId");
+
+                    b.HasIndex("NovelId");
+
+                    b.ToTable("Chapter");
+                });
+
+            modelBuilder.Entity("FictionArchive.Service.NovelService.Models.Novels.Novel", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<long>("AuthorId")
+                        .HasColumnType("bigint");
+
+                    b.Property<Guid?>("CoverImageId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Instant>("CreatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("DescriptionId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("ExternalId")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<Instant>("LastUpdatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("NameId")
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("RawLanguage")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("RawStatus")
+                        .HasColumnType("integer");
+
+                    b.Property<long>("SourceId")
+                        .HasColumnType("bigint");
+
+                    b.Property<int?>("StatusOverride")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("Url")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AuthorId");
+
+                    b.HasIndex("CoverImageId");
+
+                    b.HasIndex("DescriptionId");
+
+                    b.HasIndex("NameId");
+
+                    b.HasIndex("SourceId");
+
+                    b.ToTable("Novels");
+                });
+
+            modelBuilder.Entity("FictionArchive.Service.NovelService.Models.Novels.NovelTag", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<Instant>("CreatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("DisplayNameId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Key")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<Instant>("LastUpdatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<long?>("SourceId")
+                        .HasColumnType("bigint");
+
+                    b.Property<int>("TagType")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("DisplayNameId");
+
+                    b.HasIndex("SourceId");
+
+                    b.ToTable("Tags");
+                });
+
+            modelBuilder.Entity("FictionArchive.Service.NovelService.Models.Novels.Person", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<Instant>("CreatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("ExternalUrl")
+                        .HasColumnType("text");
+
+                    b.Property<Instant>("LastUpdatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("NameId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("NameId");
+
+                    b.ToTable("Person");
+                });
+
+            modelBuilder.Entity("FictionArchive.Service.NovelService.Models.Novels.Source", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<Instant>("CreatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Key")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<Instant>("LastUpdatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Url")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Sources");
+                });
+
+            modelBuilder.Entity("FictionArchive.Service.NovelService.Models.Novels.TranslationEngine", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<Instant>("CreatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Key")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<Instant>("LastUpdatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("TranslationEngines");
+                });
+
+            modelBuilder.Entity("NovelNovelTag", b =>
+                {
+                    b.Property<long>("NovelsId")
+                        .HasColumnType("bigint");
+
+                    b.Property<long>("TagsId")
+                        .HasColumnType("bigint");
+
+                    b.HasKey("NovelsId", "TagsId");
+
+                    b.HasIndex("TagsId");
+
+                    b.ToTable("NovelNovelTag");
+                });
+
+            modelBuilder.Entity("FictionArchive.Service.NovelService.Models.Images.Image", b =>
+                {
+                    b.HasOne("FictionArchive.Service.NovelService.Models.Novels.Chapter", "Chapter")
+                        .WithMany("Images")
+                        .HasForeignKey("ChapterId");
+
+                    b.Navigation("Chapter");
+                });
+
+            modelBuilder.Entity("FictionArchive.Service.NovelService.Models.Localization.LocalizationRequest", b =>
+                {
+                    b.HasOne("FictionArchive.Service.NovelService.Models.Novels.TranslationEngine", "Engine")
+                        .WithMany()
+                        .HasForeignKey("EngineId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FictionArchive.Service.NovelService.Models.Localization.LocalizationKey", "KeyRequestedForTranslation")
+                        .WithMany()
+                        .HasForeignKey("KeyRequestedForTranslationId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Engine");
+
+                    b.Navigation("KeyRequestedForTranslation");
+                });
+
+            modelBuilder.Entity("FictionArchive.Service.NovelService.Models.Localization.LocalizationText", b =>
+                {
+                    b.HasOne("FictionArchive.Service.NovelService.Models.Localization.LocalizationKey", null)
+                        .WithMany("Texts")
+                        .HasForeignKey("LocalizationKeyId");
+
+                    b.HasOne("FictionArchive.Service.NovelService.Models.Novels.TranslationEngine", "TranslationEngine")
+                        .WithMany()
+                        .HasForeignKey("TranslationEngineId");
+
+                    b.Navigation("TranslationEngine");
+                });
+
+            modelBuilder.Entity("FictionArchive.Service.NovelService.Models.Novels.Chapter", b =>
+                {
+                    b.HasOne("FictionArchive.Service.NovelService.Models.Localization.LocalizationKey", "Body")
+                        .WithMany()
+                        .HasForeignKey("BodyId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FictionArchive.Service.NovelService.Models.Localization.LocalizationKey", "Name")
+                        .WithMany()
+                        .HasForeignKey("NameId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FictionArchive.Service.NovelService.Models.Novels.Novel", null)
+                        .WithMany("Chapters")
+                        .HasForeignKey("NovelId");
+
+                    b.Navigation("Body");
+
+                    b.Navigation("Name");
+                });
+
+            modelBuilder.Entity("FictionArchive.Service.NovelService.Models.Novels.Novel", b =>
+                {
+                    b.HasOne("FictionArchive.Service.NovelService.Models.Novels.Person", "Author")
+                        .WithMany()
+                        .HasForeignKey("AuthorId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FictionArchive.Service.NovelService.Models.Images.Image", "CoverImage")
+                        .WithMany()
+                        .HasForeignKey("CoverImageId");
+
+                    b.HasOne("FictionArchive.Service.NovelService.Models.Localization.LocalizationKey", "Description")
+                        .WithMany()
+                        .HasForeignKey("DescriptionId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FictionArchive.Service.NovelService.Models.Localization.LocalizationKey", "Name")
+                        .WithMany()
+                        .HasForeignKey("NameId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FictionArchive.Service.NovelService.Models.Novels.Source", "Source")
+                        .WithMany()
+                        .HasForeignKey("SourceId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Author");
+
+                    b.Navigation("CoverImage");
+
+                    b.Navigation("Description");
+
+                    b.Navigation("Name");
+
+                    b.Navigation("Source");
+                });
+
+            modelBuilder.Entity("FictionArchive.Service.NovelService.Models.Novels.NovelTag", b =>
+                {
+                    b.HasOne("FictionArchive.Service.NovelService.Models.Localization.LocalizationKey", "DisplayName")
+                        .WithMany()
+                        .HasForeignKey("DisplayNameId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FictionArchive.Service.NovelService.Models.Novels.Source", "Source")
+                        .WithMany()
+                        .HasForeignKey("SourceId");
+
+                    b.Navigation("DisplayName");
+
+                    b.Navigation("Source");
+                });
+
+            modelBuilder.Entity("FictionArchive.Service.NovelService.Models.Novels.Person", b =>
+                {
+                    b.HasOne("FictionArchive.Service.NovelService.Models.Localization.LocalizationKey", "Name")
+                        .WithMany()
+                        .HasForeignKey("NameId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Name");
+                });
+
+            modelBuilder.Entity("NovelNovelTag", b =>
+                {
+                    b.HasOne("FictionArchive.Service.NovelService.Models.Novels.Novel", null)
+                        .WithMany()
+                        .HasForeignKey("NovelsId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FictionArchive.Service.NovelService.Models.Novels.NovelTag", null)
+                        .WithMany()
+                        .HasForeignKey("TagsId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FictionArchive.Service.NovelService.Models.Localization.LocalizationKey", b =>
+                {
+                    b.Navigation("Texts");
+                });
+
+            modelBuilder.Entity("FictionArchive.Service.NovelService.Models.Novels.Chapter", b =>
+                {
+                    b.Navigation("Images");
+                });
+
+            modelBuilder.Entity("FictionArchive.Service.NovelService.Models.Novels.Novel", b =>
+                {
+                    b.Navigation("Chapters");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

FictionArchive.Service.NovelService/Migrations/20251123203953_AddImages.cs

@@ -0,0 +1,79 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+using NodaTime;
+
+#nullable disable
+
+namespace FictionArchive.Service.NovelService.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddImages : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<Guid>(
+                name: "CoverImageId",
+                table: "Novels",
+                type: "uuid",
+                nullable: true);
+
+            migrationBuilder.CreateTable(
+                name: "Images",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uuid", nullable: false),
+                    OriginalPath = table.Column<string>(type: "text", nullable: false),
+                    NewPath = table.Column<string>(type: "text", nullable: true),
+                    ChapterId = table.Column<long>(type: "bigint", nullable: true),
+                    CreatedTime = table.Column<Instant>(type: "timestamp with time zone", nullable: false),
+                    LastUpdatedTime = table.Column<Instant>(type: "timestamp with time zone", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Images", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Images_Chapter_ChapterId",
+                        column: x => x.ChapterId,
+                        principalTable: "Chapter",
+                        principalColumn: "Id");
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Novels_CoverImageId",
+                table: "Novels",
+                column: "CoverImageId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Images_ChapterId",
+                table: "Images",
+                column: "ChapterId");
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_Novels_Images_CoverImageId",
+                table: "Novels",
+                column: "CoverImageId",
+                principalTable: "Images",
+                principalColumn: "Id");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropForeignKey(
+                name: "FK_Novels_Images_CoverImageId",
+                table: "Novels");
+
+            migrationBuilder.DropTable(
+                name: "Images");
+
+            migrationBuilder.DropIndex(
+                name: "IX_Novels_CoverImageId",
+                table: "Novels");
+
+            migrationBuilder.DropColumn(
+                name: "CoverImageId",
+                table: "Novels");
+        }
+    }
+}

FictionArchive.Service.NovelService/Migrations/NovelServiceDbContextModelSnapshot.cs

@@ -23,6 +23,35 @@ namespace FictionArchive.Service.NovelService.Migrations
 
             NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
 
+            modelBuilder.Entity("FictionArchive.Service.NovelService.Models.Images.Image", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<long?>("ChapterId")
+                        .HasColumnType("bigint");
+
+                    b.Property<Instant>("CreatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Instant>("LastUpdatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("NewPath")
+                        .HasColumnType("text");
+
+                    b.Property<string>("OriginalPath")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ChapterId");
+
+                    b.ToTable("Images");
+                });
+
             modelBuilder.Entity("FictionArchive.Service.NovelService.Models.Localization.LocalizationKey", b =>
                 {
                     b.Property<Guid>("Id")
@@ -158,6 +187,9 @@ namespace FictionArchive.Service.NovelService.Migrations
                     b.Property<long>("AuthorId")
                         .HasColumnType("bigint");
 
+                    b.Property<Guid?>("CoverImageId")
+                        .HasColumnType("uuid");
+
                     b.Property<Instant>("CreatedTime")
                         .HasColumnType("timestamp with time zone");
 
@@ -194,6 +226,8 @@ namespace FictionArchive.Service.NovelService.Migrations
 
                     b.HasIndex("AuthorId");
 
+                    b.HasIndex("CoverImageId");
+
                     b.HasIndex("DescriptionId");
 
                     b.HasIndex("NameId");
@@ -335,6 +369,15 @@ namespace FictionArchive.Service.NovelService.Migrations
                     b.ToTable("NovelNovelTag");
                 });
 
+            modelBuilder.Entity("FictionArchive.Service.NovelService.Models.Images.Image", b =>
+                {
+                    b.HasOne("FictionArchive.Service.NovelService.Models.Novels.Chapter", "Chapter")
+                        .WithMany("Images")
+                        .HasForeignKey("ChapterId");
+
+                    b.Navigation("Chapter");
+                });
+
             modelBuilder.Entity("FictionArchive.Service.NovelService.Models.Localization.LocalizationRequest", b =>
                 {
                     b.HasOne("FictionArchive.Service.NovelService.Models.Novels.TranslationEngine", "Engine")
@@ -398,6 +441,10 @@ namespace FictionArchive.Service.NovelService.Migrations
                         .OnDelete(DeleteBehavior.Cascade)
                         .IsRequired();
 
+                    b.HasOne("FictionArchive.Service.NovelService.Models.Images.Image", "CoverImage")
+                        .WithMany()
+                        .HasForeignKey("CoverImageId");
+
                     b.HasOne("FictionArchive.Service.NovelService.Models.Localization.LocalizationKey", "Description")
                         .WithMany()
                         .HasForeignKey("DescriptionId")
@@ -418,6 +465,8 @@ namespace FictionArchive.Service.NovelService.Migrations
 
                     b.Navigation("Author");
 
+                    b.Navigation("CoverImage");
+
                     b.Navigation("Description");
 
                     b.Navigation("Name");
@@ -473,6 +522,11 @@ namespace FictionArchive.Service.NovelService.Migrations
                     b.Navigation("Texts");
                 });
 
+            modelBuilder.Entity("FictionArchive.Service.NovelService.Models.Novels.Chapter", b =>
+                {
+                    b.Navigation("Images");
+                });
+
             modelBuilder.Entity("FictionArchive.Service.NovelService.Models.Novels.Novel", b =>
                 {
                     b.Navigation("Chapters");

FictionArchive.Service.NovelService/Models/Configuration/NovelUpdateServiceConfiguration.cs

@@ -0,0 +1,6 @@
+namespace FictionArchive.Service.NovelService.Models.Configuration;
+
+public class NovelUpdateServiceConfiguration
+{
+    public string PendingImageUrl { get; set; }
+}

FictionArchive.Service.NovelService/Models/Images/Image.cs

@@ -0,0 +1,13 @@
+using FictionArchive.Service.NovelService.Models.Novels;
+using FictionArchive.Service.Shared.Models;
+
+namespace FictionArchive.Service.NovelService.Models.Images;
+
+public class Image : BaseEntity<Guid>
+{
+    public string OriginalPath { get; set; }
+    public string? NewPath { get; set; }
+    
+    // Chapter link. Even if an image appears in another chapter, we should rehost it separately.
+    public Chapter? Chapter { get; set; }
+}

FictionArchive.Service.NovelService/Models/IntegrationEvents/ChapterPullRequestedEvent.cs

@@ -2,7 +2,7 @@ using FictionArchive.Service.Shared.Services.EventBus;
 
 namespace FictionArchive.Service.NovelService.Models.IntegrationEvents;
 
-public class ChapterPullRequestedEvent : IntegrationEvent
+public class ChapterPullRequestedEvent : IIntegrationEvent
 {
     public uint NovelId { get; set; }
     public uint ChapterNumber { get; set; }

FictionArchive.Service.NovelService/Models/IntegrationEvents/FileUploadRequestCreatedEvent.cs

@@ -0,0 +1,10 @@
+using FictionArchive.Service.Shared.Services.EventBus;
+
+namespace FictionArchive.Service.FileService.IntegrationEvents;
+
+public class FileUploadRequestCreatedEvent : IIntegrationEvent
+{
+    public Guid RequestId { get; set; }
+    public string FilePath { get; set; }
+    public byte[] FileData { get; set; }
+}

FictionArchive.Service.NovelService/Models/IntegrationEvents/FileUploadRequestStatusUpdateEvent.cs

@@ -0,0 +1,22 @@
+using FictionArchive.Common.Enums;
+using FictionArchive.Service.Shared.Services.EventBus;
+
+namespace FictionArchive.Service.NovelService.Models.IntegrationEvents;
+
+public class FileUploadRequestStatusUpdateEvent : IIntegrationEvent
+{
+    public Guid RequestId { get; set; }
+    public RequestStatus Status { get; set; }
+    
+    #region Success
+    
+    public string? FileAccessUrl { get; set; }
+    
+    #endregion
+    
+    #region Failure
+    
+    public string? ErrorMessage { get; set; }
+    
+    #endregion
+}

FictionArchive.Service.NovelService/Models/IntegrationEvents/NovelUpdateRequestedEvent.cs

@@ -2,7 +2,7 @@ using FictionArchive.Service.Shared.Services.EventBus;
 
 namespace FictionArchive.Service.NovelService.Models.IntegrationEvents;
 
-public class NovelUpdateRequestedEvent : IntegrationEvent
+public class NovelUpdateRequestedEvent : IIntegrationEvent
 {
     public string NovelUrl { get; set; }
 }

FictionArchive.Service.NovelService/Models/IntegrationEvents/TranslationRequestCompletedEvent.cs

@@ -3,7 +3,7 @@ using FictionArchive.Service.Shared.Services.EventBus;
 
 namespace FictionArchive.Service.NovelService.Models.IntegrationEvents;
 
-public class TranslationRequestCompletedEvent : IntegrationEvent
+public class TranslationRequestCompletedEvent : IIntegrationEvent
 {
     /// <summary>
     /// Maps this event back to a triggering request.

FictionArchive.Service.NovelService/Models/IntegrationEvents/TranslationRequestCreatedEvent.cs

@@ -3,7 +3,7 @@ using FictionArchive.Service.Shared.Services.EventBus;
 
 namespace FictionArchive.Service.NovelService.Models.IntegrationEvents;
 
-public class TranslationRequestCreatedEvent : IntegrationEvent
+public class TranslationRequestCreatedEvent : IIntegrationEvent
 {
     public Guid TranslationRequestId { get; set; }
     public Language From { get; set; }

FictionArchive.Service.NovelService/Models/Novels/Chapter.cs

@@ -1,3 +1,4 @@
+using FictionArchive.Service.NovelService.Models.Images;
 using FictionArchive.Service.NovelService.Models.Localization;
 using FictionArchive.Service.Shared.Models;
 
@@ -11,4 +12,7 @@ public class Chapter : BaseEntity<uint>
     
     public LocalizationKey Name { get; set; }
     public LocalizationKey Body { get; set; }
+    
+    // Images appearing in this chapter.
+    public List<Image> Images { get; set; }
 }

FictionArchive.Service.NovelService/Models/Novels/Novel.cs

@@ -1,4 +1,5 @@
 using FictionArchive.Common.Enums;
+using FictionArchive.Service.NovelService.Models.Images;
 using FictionArchive.Service.NovelService.Models.Localization;
 using FictionArchive.Service.Shared.Models;
 using NovelStatus = FictionArchive.Service.NovelService.Models.Enums.NovelStatus;
@@ -22,4 +23,5 @@ public class Novel : BaseEntity<uint>
     
     public List<Chapter> Chapters { get; set; }
     public List<NovelTag> Tags { get; set; }
+    public Image? CoverImage { get; set; }
 }

FictionArchive.Service.NovelService/Models/SourceAdapters/ChapterFetchResult.cs

@@ -0,0 +1,7 @@
+namespace FictionArchive.Service.NovelService.Models.SourceAdapters;
+
+public class ChapterFetchResult
+{
+    public string Text { get; set; }
+    public List<ImageData> ImageData { get; set; }
+}

FictionArchive.Service.NovelService/Models/SourceAdapters/ChapterMetadata.cs

@@ -6,5 +6,5 @@ public class ChapterMetadata
     public uint Order { get; set; }
     public string? Url { get; set; }
     public string Name { get; set; }
-    
+    public List<string> ImageUrls { get; set; }
 }

FictionArchive.Service.NovelService/Models/SourceAdapters/ImageData.cs

@@ -0,0 +1,7 @@
+namespace FictionArchive.Service.NovelService.Models.SourceAdapters;
+
+public class ImageData
+{
+    public string Url { get; set; }
+    public byte[] Data { get; set; }
+}

FictionArchive.Service.NovelService/Models/SourceAdapters/NovelMetadata.cs

@@ -11,6 +11,7 @@ public class NovelMetadata
     public string AuthorUrl { get; set; }
     public string Url { get; set; }
     public string ExternalId { get; set; }
+    public ImageData? CoverImage { get; set; }
     
     public Language RawLanguage { get; set; }
     public NovelStatus RawStatus { get; set; }

FictionArchive.Service.NovelService/Program.cs

@@ -1,4 +1,6 @@
+using FictionArchive.Common.Extensions;
 using FictionArchive.Service.NovelService.GraphQL;
+using FictionArchive.Service.NovelService.Models.Configuration;
 using FictionArchive.Service.NovelService.Models.IntegrationEvents;
 using FictionArchive.Service.NovelService.Services;
 using FictionArchive.Service.NovelService.Services.EventHandlers;
@@ -16,6 +18,7 @@ public class Program
     public static void Main(string[] args)
     {
         var builder = WebApplication.CreateBuilder(args);
+        builder.AddLocalAppsettings();
         
         builder.Services.AddMemoryCache();
         
@@ -27,7 +30,8 @@ public class Program
         })
             .Subscribe<TranslationRequestCompletedEvent, TranslationRequestCompletedEventHandler>()
             .Subscribe<NovelUpdateRequestedEvent, NovelUpdateRequestedEventHandler>()
-            .Subscribe<ChapterPullRequestedEvent, ChapterPullRequestedEventHandler>();
+            .Subscribe<ChapterPullRequestedEvent, ChapterPullRequestedEventHandler>()
+            .Subscribe<FileUploadRequestStatusUpdateEvent, FileUploadRequestStatusUpdateEventHandler>();
         
         #endregion
         
@@ -56,6 +60,7 @@ public class Program
             })
             .AddHttpMessageHandler<NovelpiaAuthMessageHandler>();
 
+        builder.Services.Configure<NovelUpdateServiceConfiguration>(builder.Configuration.GetSection("UpdateService"));
         builder.Services.AddTransient<NovelUpdateService>();
         
         #endregion
@@ -77,6 +82,6 @@ public class Program
         
         app.MapGraphQL();
 
-        app.Run();
+        app.RunWithGraphQLCommands(args);
     }
 }

FictionArchive.Service.NovelService/Services/EventHandlers/FileUploadRequestStatusUpdateEventHandler.cs

@@ -0,0 +1,39 @@
+using FictionArchive.Common.Enums;
+using FictionArchive.Service.NovelService.Models.IntegrationEvents;
+using FictionArchive.Service.Shared.Services.EventBus;
+
+namespace FictionArchive.Service.NovelService.Services.EventHandlers;
+
+public class FileUploadRequestStatusUpdateEventHandler : IIntegrationEventHandler<FileUploadRequestStatusUpdateEvent>
+{
+    private readonly ILogger<FileUploadRequestStatusUpdateEventHandler> _logger;
+    private readonly NovelServiceDbContext _context;
+    private readonly NovelUpdateService _novelUpdateService;
+
+    public FileUploadRequestStatusUpdateEventHandler(ILogger<FileUploadRequestStatusUpdateEventHandler> logger, NovelServiceDbContext context, NovelUpdateService novelUpdateService)
+    {
+        _logger = logger;
+        _context = context;
+        _novelUpdateService = novelUpdateService;
+    }
+
+    public async Task Handle(FileUploadRequestStatusUpdateEvent @event)
+    {
+        var image = await _context.Images.FindAsync(@event.RequestId);
+        if (image == null)
+        {
+            // Not a request we care about.
+            return;
+        }
+        if (@event.Status == RequestStatus.Failed)
+        {
+            _logger.LogError("Image upload failed for image with id {imageId}", image.Id);
+            return;
+        }
+        else if (@event.Status == RequestStatus.Success)
+        {
+            _logger.LogInformation("Image upload succeeded for image with id {imageId}", image.Id);
+            await _novelUpdateService.UpdateImage(image.Id, @event.FileAccessUrl);
+        }
+    }
+}

FictionArchive.Service.NovelService/Services/NovelServiceDbContext.cs

@@ -1,3 +1,4 @@
+using FictionArchive.Service.NovelService.Models.Images;
 using FictionArchive.Service.NovelService.Models.Localization;
 using FictionArchive.Service.NovelService.Models.Novels;
 using FictionArchive.Service.Shared.Services.Database;
@@ -14,4 +15,5 @@ public class NovelServiceDbContext(DbContextOptions options, ILogger<NovelServic
     public DbSet<NovelTag> Tags { get; set; }
     public DbSet<LocalizationKey> LocalizationKeys { get; set; }
     public DbSet<LocalizationRequest> LocalizationRequests { get; set; }
+    public DbSet<Image> Images { get; set; }
 }

FictionArchive.Service.NovelService/Services/NovelUpdateService.cs

@@ -1,9 +1,15 @@
+using FictionArchive.Service.FileService.IntegrationEvents;
+using FictionArchive.Service.NovelService.Models.Configuration;
 using FictionArchive.Service.NovelService.Models.Enums;
+using FictionArchive.Service.NovelService.Models.Images;
 using FictionArchive.Service.NovelService.Models.Localization;
 using FictionArchive.Service.NovelService.Models.Novels;
 using FictionArchive.Service.NovelService.Models.SourceAdapters;
 using FictionArchive.Service.NovelService.Services.SourceAdapters;
+using FictionArchive.Service.Shared.Services.EventBus;
+using HtmlAgilityPack;
 using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Options;
 
 namespace FictionArchive.Service.NovelService.Services;
 
@@ -12,12 +18,16 @@ public class NovelUpdateService
     private readonly NovelServiceDbContext _dbContext;
     private readonly ILogger<NovelUpdateService> _logger;
     private readonly IEnumerable<ISourceAdapter> _sourceAdapters;
+    private readonly IEventBus _eventBus;
+    private readonly NovelUpdateServiceConfiguration _novelUpdateServiceConfiguration;
 
-    public NovelUpdateService(NovelServiceDbContext dbContext, ILogger<NovelUpdateService> logger, IEnumerable<ISourceAdapter> sourceAdapters)
+    public NovelUpdateService(NovelServiceDbContext dbContext, ILogger<NovelUpdateService> logger, IEnumerable<ISourceAdapter> sourceAdapters, IEventBus eventBus, IOptions<NovelUpdateServiceConfiguration> novelUpdateServiceConfiguration)
     {
         _dbContext = dbContext;
         _logger = logger;
         _sourceAdapters = sourceAdapters;
+        _eventBus = eventBus;
+        _novelUpdateServiceConfiguration = novelUpdateServiceConfiguration.Value;
     }
 
     public async Task<Novel> ImportNovel(string novelUrl)
@@ -59,6 +69,10 @@ public class NovelUpdateService
             RawLanguage = metadata.RawLanguage,
             Url = metadata.Url,
             ExternalId = metadata.ExternalId,
+            CoverImage = metadata.CoverImage != null ? new Image()
+            {
+                OriginalPath = metadata.CoverImage.Url,
+            } : null,
             Chapters = metadata.Chapters.Select(chapter =>
             {
                 return new Chapter()
@@ -85,7 +99,18 @@ public class NovelUpdateService
             }
         });
         await _dbContext.SaveChangesAsync();
-
+        
+        // Signal request for cover image if present
+        if (addedNovel.Entity.CoverImage != null)
+        {
+            await _eventBus.Publish(new FileUploadRequestCreatedEvent()
+            {
+                RequestId = addedNovel.Entity.CoverImage.Id,
+                FileData = metadata.CoverImage.Data,
+                FilePath = $"Novels/{addedNovel.Entity.Id}/Images/cover.jpg"
+            });
+        }
+        
         return addedNovel.Entity;
     }
 
@@ -95,17 +120,85 @@ public class NovelUpdateService
             .Include(novel => novel.Chapters)
             .ThenInclude(chapter => chapter.Body)
             .ThenInclude(body => body.Texts)
-            .Include(novel => novel.Source)
+            .Include(novel => novel.Source).Include(novel => novel.Chapters).ThenInclude(chapter => chapter.Images)
             .FirstOrDefaultAsync();
         var chapter = novel.Chapters.Where(chapter => chapter.Order == chapterNumber).FirstOrDefault();
         var adapter = _sourceAdapters.FirstOrDefault(adapter => adapter.SourceDescriptor.Key == novel.Source.Key);
         var rawChapter = await adapter.GetRawChapter(chapter.Url);
-        chapter.Body.Texts.Add(new LocalizationText()
+        var localizationText = new LocalizationText()
         {
-            Text = rawChapter,
+            Text = rawChapter.Text,
             Language = novel.RawLanguage
-        });
+        };
+        chapter.Body.Texts.Add(localizationText);
+        chapter.Images = rawChapter.ImageData.Select(img => new Image()
+        {
+            OriginalPath = img.Url
+        }).ToList();
         await _dbContext.SaveChangesAsync();
+        
+        // Images are saved and have ids, update the chapter body to replace image tags
+        var chapterDoc = new HtmlDocument();
+        chapterDoc.LoadHtml(rawChapter.Text);
+        foreach (var image in chapter.Images)
+        {
+            var match = chapterDoc.DocumentNode.SelectSingleNode(@$"//img[@src='{image.OriginalPath}']");
+            if (match != null)
+            {
+                match.Attributes["src"].Value = _novelUpdateServiceConfiguration.PendingImageUrl;
+                if (match.Attributes.Contains("alt"))
+                {
+                    match.Attributes["alt"].Value = image.Id.ToString();
+                }
+                else
+                {
+                    match.Attributes.Add("alt", image.Id.ToString());
+                }
+            }
+        }
+        localizationText.Text = chapterDoc.DocumentNode.OuterHtml;
+        await _dbContext.SaveChangesAsync();
+        
+        // Body was updated, raise image request
+        int imgCount = 0;
+        foreach (var image in chapter.Images)
+        {
+            var data = rawChapter.ImageData.FirstOrDefault(img => img.Url == image.OriginalPath);
+            await _eventBus.Publish(new FileUploadRequestCreatedEvent()
+            {
+                FileData = data.Data,
+                FilePath = $"{novel.Id}/Images/Chapter-{chapter.Id}/{imgCount++}.jpg",
+                RequestId = image.Id
+            });
+        }
+
         return chapter;
     }
-}
+
+    public async Task UpdateImage(Guid imageId, string newUrl)
+    {
+        var image = await _dbContext.Images
+            .Include(img => img.Chapter)
+            .ThenInclude(chapter => chapter.Body)
+            .ThenInclude(body => body.Texts)
+            .FirstOrDefaultAsync(image => image.Id == imageId);
+        image.NewPath = newUrl;
+        
+        // If this is an image from a chapter, let's update the chapter body(s)
+        if (image.Chapter != null)
+        {
+            foreach (var bodyText in image.Chapter.Body.Texts)
+            {
+                var chapterDoc = new HtmlDocument();
+                chapterDoc.LoadHtml(bodyText.Text);
+                var match = chapterDoc.DocumentNode.SelectSingleNode(@$"//img[@alt='{image.Id}']");
+                if (match != null)
+                {
+                    match.Attributes["src"].Value = newUrl;
+                }
+            }
+        }
+        
+        await _dbContext.SaveChangesAsync();
+    }
+}

FictionArchive.Service.NovelService/Services/SourceAdapters/ISourceAdapter.cs

@@ -8,5 +8,5 @@ public interface ISourceAdapter
     public SourceDescriptor SourceDescriptor { get; }
     public Task<bool> CanProcessNovel(string url);
     public Task<NovelMetadata> GetMetadata(string novelUrl);
-    public Task<string> GetRawChapter(string chapterUrl);
+    public Task<ChapterFetchResult> GetRawChapter(string chapterUrl);
 }

FictionArchive.Service.NovelService/Services/SourceAdapters/Novelpia/NovelpiaAdapter.cs

@@ -81,6 +81,21 @@ public class NovelpiaAdapter : ISourceAdapter
         novel.AuthorName = authorMatch.Groups[2].Value;
         novel.AuthorUrl = authorMatch.Groups[2].Value;
         
+        // Cover image URL
+        var coverMatch = Regex.Match(novelData, @"href=""(//images\.novelpia\.com/imagebox/cover/.+?\.file)""");
+        string coverImageUrl = coverMatch.Groups[1].Value;
+        if (string.IsNullOrEmpty(coverImageUrl))
+        {
+            coverMatch = Regex.Match(novelData, @"src=""(//images\.novelpia\.com/imagebox/cover/.+?\.file)""");
+            coverImageUrl = coverMatch.Groups[1].Value;
+        }
+
+        novel.CoverImage = new ImageData()
+        {
+            Url = coverImageUrl,
+            Data = await GetImageData(coverImageUrl),
+        };
+        
         // Some badge info
         var badgeSet = Regex.Match(novelData, @"(?s)<p\s+class=""in-badge"">(.*?)<\/p>");
         var badgeMatches = Regex.Matches(badgeSet.Groups[1].Value, @"<span[^>]*>(.*?)<\/span>");
@@ -160,7 +175,7 @@ public class NovelpiaAdapter : ISourceAdapter
         return novel;
     }
 
-    public async Task<string> GetRawChapter(string chapterUrl)
+    public async Task<ChapterFetchResult> GetRawChapter(string chapterUrl)
     {
         var chapterId = uint.Parse(Regex.Match(chapterUrl, ChapterIdRegex).Groups[1].Value);
         var endpoint = ChapterDownloadEndpoint + chapterId;
@@ -171,6 +186,11 @@ public class NovelpiaAdapter : ISourceAdapter
         {
             throw new Exception();
         }
+
+        var fetchResult = new ChapterFetchResult()
+        {
+            ImageData = new List<ImageData>()
+        };
         
         StringBuilder builder = new StringBuilder();
         using var doc = JsonDocument.Parse(responseContent);
@@ -182,10 +202,20 @@ public class NovelpiaAdapter : ISourceAdapter
         foreach (JsonElement item in sArray.EnumerateArray())
         {
             string text = item.GetProperty("text").GetString();
+            var imageMatch = Regex.Match(text, @"<img.+?src=\""(.+?)\"".+?>");
             if (text.Contains("cover-wrapper"))
             {
                 continue;
             }
+            if (imageMatch.Success)
+            {
+                var url = imageMatch.Groups[1].Value;
+                fetchResult.ImageData.Add(new ImageData()
+                {
+                    Url = url,
+                    Data = await GetImageData(url)
+                });
+            }
             if (text.Contains("opacity: 0"))
             {
                 continue;
@@ -193,8 +223,24 @@ public class NovelpiaAdapter : ISourceAdapter
             
             builder.Append(WebUtility.HtmlDecode(text));
         }
+        fetchResult.Text = builder.ToString();
 
-        return builder.ToString();
+        return fetchResult;
-        
+    }
+
+    private async Task<byte[]> GetImageData(string url)
+    {
+        if (!url.StartsWith("http"))
+        {
+            url = "https:" + url;
+        }
+
+        var image = await _httpClient.GetAsync(url);
+        if (!image.IsSuccessStatusCode)
+        {
+            _logger.LogError("Attempting to fetch image with url {imgUrl} returned status code {code}.", url, image.StatusCode);
+            throw new Exception();
+        }
+        return await image.Content.ReadAsByteArrayAsync();
     }
 }

FictionArchive.Service.NovelService/Services/SourceAdapters/Novelpia/NovelpiaAuthMessageHandler.cs

@@ -52,10 +52,15 @@ public class NovelpiaAuthMessageHandler : DelegatingHandler
             var response = await _httpClient.SendAsync(loginMessage);
             using (var streamReader = new StreamReader(response.Content.ReadAsStream()))
             {
-                if (streamReader.ReadToEnd().Contains(LoginSuccessMessage))
+                var message = await streamReader.ReadToEndAsync();
+                if (message.Contains(LoginSuccessMessage))
                 {
                     _cache.Set(CacheKey, loginKey);
                 }
+                else
+                {
+                    throw new Exception("An error occured while retrieving the login key. Message: " + message);
+                }
             }
         }
 

FictionArchive.Service.NovelService/appsettings.json

@@ -9,6 +9,9 @@
     "Username": "REPLACE_ME",
     "Password": "REPLACE_ME"
   },
+  "UpdateService": {
+    "PendingImageUrl": "https://localhost:7247/api/pendingupload.png"
+  },
   "ConnectionStrings": {
     "DefaultConnection": "Host=localhost;Database=FictionArchive_NovelService;Username=postgres;password=postgres"
   },

FictionArchive.Service.NovelService/subgraph-config.json

@@ -0,0 +1,6 @@
+{
+  "subgraph": "Novels",
+  "http": {
+    "baseAddress": "http://localhost:5101/graphql"
+  }
+}

FictionArchive.Service.SchedulerService/Program.cs

@@ -69,6 +69,6 @@ public class Program
         
         app.MapGraphQL();
         
-        app.Run();
+        app.RunWithGraphQLCommands(args);
     }
 }

FictionArchive.Service.SchedulerService/subgraph-config.json

@@ -0,0 +1,6 @@
+{
+  "subgraph": "Scheduler",
+  "http": {
+    "baseAddress": "http://localhost:5213/graphql"
+  }
+}

FictionArchive.Service.Shared/Extensions/GraphQLExtensions.cs

@@ -10,15 +10,21 @@ public static class GraphQLExtensions
     public static IRequestExecutorBuilder AddDefaultGraphQl<TQuery, TMutation>(this IServiceCollection services) where TQuery : class where TMutation : class
     {
         return services.AddGraphQLServer()
-                .AddQueryType<TQuery>()
+            .AddQueryType<TQuery>()
-                .AddMutationType<TMutation>()
+            .AddMutationType<TMutation>()
-                .AddDiagnosticEventListener<ErrorEventListener>()
+            .ApplySaneDefaults();
-                .AddErrorFilter<LoggingErrorFilter>()
+
-                .AddType<UnsignedIntType>()
+    }
-                .AddType<InstantType>()
+
-                .AddMutationConventions(applyToAllMutations: true)
+    public static IRequestExecutorBuilder ApplySaneDefaults(this IRequestExecutorBuilder builder)
-                .AddFiltering(opt => opt.AddDefaults().BindRuntimeType<uint, UnsignedIntOperationFilterInputType>())
+    {
-                .AddSorting()
+        return builder.AddDiagnosticEventListener<ErrorEventListener>()
-                .AddProjections();
+                        .AddErrorFilter<LoggingErrorFilter>()
+                        .AddType<UnsignedIntType>()
+                        .AddType<InstantType>()
+                        .AddMutationConventions(applyToAllMutations: true)
+                        .AddFiltering(opt => opt.AddDefaults().BindRuntimeType<uint, UnsignedIntOperationFilterInputType>())
+                        .AddSorting()
+                        .AddProjections();
     }
 }

FictionArchive.Service.Shared/FictionArchive.Service.Shared.csproj

@@ -9,6 +9,7 @@
     <ItemGroup>
         <PackageReference Include="GraphQL.Server.Ui.GraphiQL" Version="8.3.3" />
         <PackageReference Include="HotChocolate.AspNetCore" Version="15.1.11" />
+        <PackageReference Include="HotChocolate.AspNetCore.CommandLine" Version="15.1.11" />
         <PackageReference Include="HotChocolate.Data.EntityFramework" Version="15.1.11" />
         <PackageReference Include="HotChocolate.Types.Scalars" Version="15.1.11" />
         <PackageReference Include="HotChocolate.Types.NodaTime" Version="15.1.11" />

FictionArchive.Service.Shared/Services/EventBus/EventBusBuilder.cs

@@ -16,7 +16,7 @@ public class EventBusBuilder<TEventBus> where TEventBus : class, IEventBus
         _services.AddSingleton<SubscriptionManager>(_subscriptionManager);
     }
 
-    public EventBusBuilder<TEventBus> Subscribe<TEvent, TEventHandler>() where TEvent : IntegrationEvent where TEventHandler : class, IIntegrationEventHandler<TEvent>
+    public EventBusBuilder<TEventBus> Subscribe<TEvent, TEventHandler>() where TEvent : IIntegrationEvent where TEventHandler : class, IIntegrationEventHandler<TEvent>
     {
         _services.AddKeyedTransient<IIntegrationEventHandler, TEventHandler>(typeof(TEvent).Name);
         _subscriptionManager.RegisterSubscription<TEvent>();

FictionArchive.Service.Shared/Services/EventBus/IEventBus.cs

@@ -2,6 +2,6 @@ namespace FictionArchive.Service.Shared.Services.EventBus;
 
 public interface IEventBus
 {
-    Task Publish<TEvent>(TEvent integrationEvent) where TEvent : IntegrationEvent;
+    Task Publish<TEvent>(TEvent integrationEvent) where TEvent : IIntegrationEvent;
     Task Publish(object integrationEvent, string eventType);
 }

FictionArchive.Service.Shared/Services/EventBus/IIntegrationEvent.cs

@@ -0,0 +1,7 @@
+using NodaTime;
+
+namespace FictionArchive.Service.Shared.Services.EventBus;
+
+public interface IIntegrationEvent
+{
+}

FictionArchive.Service.Shared/Services/EventBus/IIntegrationEventHandler.cs

@@ -1,12 +1,12 @@
 namespace FictionArchive.Service.Shared.Services.EventBus;
 
-public interface IIntegrationEventHandler<in TEvent> : IIntegrationEventHandler where TEvent : IntegrationEvent
+public interface IIntegrationEventHandler<in TEvent> : IIntegrationEventHandler where TEvent : IIntegrationEvent
 {
     Task Handle(TEvent @event);
-    Task IIntegrationEventHandler.Handle(IntegrationEvent @event) => Handle((TEvent)@event);
+    Task IIntegrationEventHandler.Handle(IIntegrationEvent @event) => Handle((TEvent)@event);
 }
 
 public interface IIntegrationEventHandler
 {
-    Task Handle(IntegrationEvent @event);
+    Task Handle(IIntegrationEvent @event);
 }

FictionArchive.Service.Shared/Services/EventBus/Implementations/RabbitMQEventBus.cs

@@ -22,6 +22,8 @@ public class RabbitMQEventBus : IEventBus, IHostedService
     private readonly JsonSerializerSettings _jsonSerializerSettings;
 
     private const string ExchangeName = "fiction-archive-event-bus";
+    private const string CreatedAtHeader = "X-Created-At";
+    private const string EventIdHeader = "X-Event-Id";
 
     public RabbitMQEventBus(IServiceScopeFactory serviceScopeFactory, RabbitMQConnectionProvider connectionProvider, IOptions<RabbitMQOptions> options, SubscriptionManager subscriptionManager, ILogger<RabbitMQEventBus> logger)
     {
@@ -33,14 +35,10 @@ public class RabbitMQEventBus : IEventBus, IHostedService
         _jsonSerializerSettings = new JsonSerializerSettings().ConfigureForNodaTime(DateTimeZoneProviders.Tzdb);
     }
 
-    public async Task Publish<TEvent>(TEvent integrationEvent) where TEvent : IntegrationEvent
+    public async Task Publish<TEvent>(TEvent integrationEvent) where TEvent : IIntegrationEvent
     {
         var routingKey = typeof(TEvent).Name;
         
-        // Set integration event values
-        integrationEvent.CreatedAt = Instant.FromDateTimeUtc(DateTime.UtcNow);
-        integrationEvent.EventId = Guid.NewGuid();
-        
         await Publish(integrationEvent, routingKey);
     }
 
@@ -48,7 +46,16 @@ public class RabbitMQEventBus : IEventBus, IHostedService
     {
         var channel = await _connectionProvider.GetDefaultChannelAsync();
         var body = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(integrationEvent));
-        await channel.BasicPublishAsync(ExchangeName, eventType, true, body);
+        
+        // headers
+        var props = new BasicProperties();
+        props.Headers = new Dictionary<string, object?>()
+        {
+            { CreatedAtHeader, Instant.FromDateTimeUtc(DateTime.UtcNow).ToString() },
+            { EventIdHeader, Guid.NewGuid().ToString() }
+        };
+        
+        await channel.BasicPublishAsync(ExchangeName, eventType, true, props, body);
         _logger.LogInformation("Published event {EventName}", eventType);
     }
 
@@ -70,14 +77,14 @@ public class RabbitMQEventBus : IEventBus, IHostedService
                     return OnReceivedEvent(sender, @event, channel);
                 };
                 
+                await channel.BasicConsumeAsync(_options.ClientIdentifier, false, consumer, cancellationToken: cancellationToken);
+                
                 foreach (var subscription in _subscriptionManager.Subscriptions)
                 {
                     await channel.QueueBindAsync(_options.ClientIdentifier, ExchangeName, subscription.Key,
                         cancellationToken: cancellationToken);
                     _logger.LogInformation("Subscribed to {SubscriptionKey}", subscription.Key);
                 }
-                
-                await channel.BasicConsumeAsync(_options.ClientIdentifier, false, consumer, cancellationToken: cancellationToken);
 
                 _logger.LogInformation("RabbitMQ EventBus started.");
             }
@@ -106,7 +113,7 @@ public class RabbitMQEventBus : IEventBus, IHostedService
             }
             
             var eventBody = Encoding.UTF8.GetString(@event.Body.Span);
-            var eventObject = JsonConvert.DeserializeObject(eventBody, _subscriptionManager.Subscriptions[eventName], _jsonSerializerSettings) as IntegrationEvent;
+            var eventObject = JsonConvert.DeserializeObject(eventBody, _subscriptionManager.Subscriptions[eventName], _jsonSerializerSettings) as IIntegrationEvent;
             
             using var scope = _serviceScopeFactory.CreateScope();
 

FictionArchive.Service.Shared/Services/EventBus/IntegrationEvent.cs

@@ -1,9 +0,0 @@
-using NodaTime;
-
-namespace FictionArchive.Service.Shared.Services.EventBus;
-
-public abstract class IntegrationEvent
-{
-    public Guid EventId { get; set; }
-    public Instant CreatedAt { get; set; }
-}

FictionArchive.Service.TranslationService/Migrations/20251122225458_Initial.Designer.cs

@@ -1,4 +1,5 @@
 // <auto-generated />
+using System;
 using FictionArchive.Service.TranslationService.Services.Database;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Infrastructure;
@@ -12,7 +13,7 @@ using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
 namespace FictionArchive.Service.TranslationService.Migrations
 {
     [DbContext(typeof(TranslationServiceDbContext))]
-    [Migration("20251118052322_Initial")]
+    [Migration("20251122225458_Initial")]
     partial class Initial
     {
         /// <inheritdoc />
@@ -27,11 +28,9 @@ namespace FictionArchive.Service.TranslationService.Migrations
 
             modelBuilder.Entity("FictionArchive.Service.TranslationService.Models.Database.TranslationRequest", b =>
                 {
-                    b.Property<long>("Id")
+                    b.Property<Guid>("Id")
                         .ValueGeneratedOnAdd()
-                        .HasColumnType("bigint");
+                        .HasColumnType("uuid");
-
-                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
 
                     b.Property<long>("BilledCharacterCount")
                         .HasColumnType("bigint");

FictionArchive.Service.TranslationService/Migrations/20251122225458_Initial.cs

@@ -1,6 +1,6 @@
-using Microsoft.EntityFrameworkCore.Migrations;
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
 using NodaTime;
-using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
 
 #nullable disable
 
@@ -16,8 +16,7 @@ namespace FictionArchive.Service.TranslationService.Migrations
                 name: "TranslationRequests",
                 columns: table => new
                 {
-                    Id = table.Column<long>(type: "bigint", nullable: false)
+                    Id = table.Column<Guid>(type: "uuid", nullable: false),
-                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
                     OriginalText = table.Column<string>(type: "text", nullable: false),
                     TranslatedText = table.Column<string>(type: "text", nullable: true),
                     From = table.Column<int>(type: "integer", nullable: false),

FictionArchive.Service.TranslationService/Migrations/TranslationServiceDbContextModelSnapshot.cs

@@ -1,4 +1,5 @@
 // <auto-generated />
+using System;
 using FictionArchive.Service.TranslationService.Services.Database;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Infrastructure;
@@ -24,11 +25,9 @@ namespace FictionArchive.Service.TranslationService.Migrations
 
             modelBuilder.Entity("FictionArchive.Service.TranslationService.Models.Database.TranslationRequest", b =>
                 {
-                    b.Property<long>("Id")
+                    b.Property<Guid>("Id")
                         .ValueGeneratedOnAdd()
-                        .HasColumnType("bigint");
+                        .HasColumnType("uuid");
-
-                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
 
                     b.Property<long>("BilledCharacterCount")
                         .HasColumnType("bigint");

FictionArchive.Service.TranslationService/Models/IntegrationEvents/TranslationRequestCompletedEvent.cs

@@ -4,7 +4,7 @@ using FictionArchive.Service.TranslationService.Models.Enums;
 
 namespace FictionArchive.Service.TranslationService.Models.IntegrationEvents;
 
-public class TranslationRequestCompletedEvent : IntegrationEvent
+public class TranslationRequestCompletedEvent : IIntegrationEvent
 {
     /// <summary>
     /// Maps this event back to a triggering request.

FictionArchive.Service.TranslationService/Models/IntegrationEvents/TranslationRequestCreatedEvent.cs

@@ -3,7 +3,7 @@ using FictionArchive.Service.Shared.Services.EventBus;
 
 namespace FictionArchive.Service.TranslationService.Models.IntegrationEvents;
 
-public class TranslationRequestCreatedEvent : IntegrationEvent
+public class TranslationRequestCreatedEvent : IIntegrationEvent
 {
     public Guid TranslationRequestId { get; set; }
     public Language From { get; set; }

FictionArchive.Service.TranslationService/Program.cs

@@ -73,6 +73,6 @@ public class Program
         
         app.MapGraphQL();
 
-        app.Run();
+        app.RunWithGraphQLCommands(args);
     }
 }

FictionArchive.Service.TranslationService/subgraph-config.json

@@ -0,0 +1,6 @@
+{
+  "subgraph": "Translation",
+  "http": {
+    "baseAddress": "http://localhost:5234/graphql"
+  }
+}

FictionArchive.Service.UserService/Dockerfile

@@ -0,0 +1,23 @@
+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.UserService/FictionArchive.Service.UserService.csproj", "FictionArchive.Service.UserService/"]
+RUN dotnet restore "FictionArchive.Service.UserService/FictionArchive.Service.UserService.csproj"
+COPY . .
+WORKDIR "/src/FictionArchive.Service.UserService"
+RUN dotnet build "./FictionArchive.Service.UserService.csproj" -c $BUILD_CONFIGURATION -o /app/build
+
+FROM build AS publish
+ARG BUILD_CONFIGURATION=Release
+RUN dotnet publish "./FictionArchive.Service.UserService.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.UserService.dll"]

FictionArchive.Service.UserService/FictionArchive.Service.UserService.csproj

@@ -0,0 +1,27 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+    <PropertyGroup>
+        <TargetFramework>net8.0</TargetFramework>
+        <Nullable>enable</Nullable>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <DockerDefaultTargetOS>Linux</DockerDefaultTargetOS>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <Content Include="..\.dockerignore">
+        <Link>.dockerignore</Link>
+      </Content>
+    </ItemGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\FictionArchive.Service.Shared\FictionArchive.Service.Shared.csproj" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="9.0.11">
+        <PrivateAssets>all</PrivateAssets>
+        <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      </PackageReference>
+    </ItemGroup>
+
+</Project>

FictionArchive.Service.UserService/GraphQL/Mutation.cs

@@ -0,0 +1,13 @@
+using FictionArchive.Service.UserService.Models.Database;
+using FictionArchive.Service.UserService.Services;
+
+namespace FictionArchive.Service.UserService.GraphQL;
+
+public class Mutation
+{
+    public async Task<User> RegisterUser(string username, string email, string oAuthProviderId,
+        string? inviterOAuthProviderId, UserManagementService userManagementService)
+    {
+        return await userManagementService.RegisterUser(username, email, oAuthProviderId, inviterOAuthProviderId);
+    }
+}

FictionArchive.Service.UserService/GraphQL/Query.cs

@@ -0,0 +1,12 @@
+using FictionArchive.Service.UserService.Models.Database;
+using FictionArchive.Service.UserService.Services;
+
+namespace FictionArchive.Service.UserService.GraphQL;
+
+public class Query
+{
+    public async Task<IQueryable<User>> GetUsers(UserManagementService userManagementService)
+    {
+        return userManagementService.GetUsers();
+    }
+}

FictionArchive.Service.UserService/Migrations/20251122034145_Initial.Designer.cs

@@ -0,0 +1,77 @@
+// <auto-generated />
+using System;
+using FictionArchive.Service.UserService.Services;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using NodaTime;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace FictionArchive.Service.UserService.Migrations
+{
+    [DbContext(typeof(UserServiceDbContext))]
+    [Migration("20251122034145_Initial")]
+    partial class Initial
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "9.0.11")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("FictionArchive.Service.UserService.Models.Database.User", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<Instant>("CreatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<bool>("Disabled")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("Email")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<Guid?>("InviterId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Instant>("LastUpdatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("OAuthProviderId")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Username")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("InviterId");
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("FictionArchive.Service.UserService.Models.Database.User", b =>
+                {
+                    b.HasOne("FictionArchive.Service.UserService.Models.Database.User", "Inviter")
+                        .WithMany()
+                        .HasForeignKey("InviterId");
+
+                    b.Navigation("Inviter");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

FictionArchive.Service.UserService/Migrations/20251122034145_Initial.cs

@@ -0,0 +1,51 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+using NodaTime;
+
+#nullable disable
+
+namespace FictionArchive.Service.UserService.Migrations
+{
+    /// <inheritdoc />
+    public partial class Initial : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Users",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uuid", nullable: false),
+                    Username = table.Column<string>(type: "text", nullable: false),
+                    Email = table.Column<string>(type: "text", nullable: false),
+                    OAuthProviderId = table.Column<string>(type: "text", nullable: false),
+                    Disabled = table.Column<bool>(type: "boolean", nullable: false),
+                    InviterId = table.Column<Guid>(type: "uuid", nullable: true),
+                    CreatedTime = table.Column<Instant>(type: "timestamp with time zone", nullable: false),
+                    LastUpdatedTime = table.Column<Instant>(type: "timestamp with time zone", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Users", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Users_Users_InviterId",
+                        column: x => x.InviterId,
+                        principalTable: "Users",
+                        principalColumn: "Id");
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Users_InviterId",
+                table: "Users",
+                column: "InviterId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "Users");
+        }
+    }
+}

FictionArchive.Service.UserService/Migrations/20251122040724_UniqueOAuthProviderId.Designer.cs

@@ -0,0 +1,80 @@
+// <auto-generated />
+using System;
+using FictionArchive.Service.UserService.Services;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using NodaTime;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace FictionArchive.Service.UserService.Migrations
+{
+    [DbContext(typeof(UserServiceDbContext))]
+    [Migration("20251122040724_UniqueOAuthProviderId")]
+    partial class UniqueOAuthProviderId
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "9.0.11")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("FictionArchive.Service.UserService.Models.Database.User", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<Instant>("CreatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<bool>("Disabled")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("Email")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<Guid?>("InviterId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Instant>("LastUpdatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("OAuthProviderId")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Username")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("InviterId");
+
+                    b.HasIndex("OAuthProviderId")
+                        .IsUnique();
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("FictionArchive.Service.UserService.Models.Database.User", b =>
+                {
+                    b.HasOne("FictionArchive.Service.UserService.Models.Database.User", "Inviter")
+                        .WithMany()
+                        .HasForeignKey("InviterId");
+
+                    b.Navigation("Inviter");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

FictionArchive.Service.UserService/Migrations/20251122040724_UniqueOAuthProviderId.cs

@@ -0,0 +1,28 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace FictionArchive.Service.UserService.Migrations
+{
+    /// <inheritdoc />
+    public partial class UniqueOAuthProviderId : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateIndex(
+                name: "IX_Users_OAuthProviderId",
+                table: "Users",
+                column: "OAuthProviderId",
+                unique: true);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropIndex(
+                name: "IX_Users_OAuthProviderId",
+                table: "Users");
+        }
+    }
+}

FictionArchive.Service.UserService/Migrations/UserServiceDbContextModelSnapshot.cs

@@ -0,0 +1,77 @@
+// <auto-generated />
+using System;
+using FictionArchive.Service.UserService.Services;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using NodaTime;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace FictionArchive.Service.UserService.Migrations
+{
+    [DbContext(typeof(UserServiceDbContext))]
+    partial class UserServiceDbContextModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "9.0.11")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("FictionArchive.Service.UserService.Models.Database.User", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<Instant>("CreatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<bool>("Disabled")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("Email")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<Guid?>("InviterId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Instant>("LastUpdatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("OAuthProviderId")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Username")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("InviterId");
+
+                    b.HasIndex("OAuthProviderId")
+                        .IsUnique();
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("FictionArchive.Service.UserService.Models.Database.User", b =>
+                {
+                    b.HasOne("FictionArchive.Service.UserService.Models.Database.User", "Inviter")
+                        .WithMany()
+                        .HasForeignKey("InviterId");
+
+                    b.Navigation("Inviter");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

FictionArchive.Service.UserService/Models/Database/User.cs

@@ -0,0 +1,20 @@
+using FictionArchive.Service.Shared.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace FictionArchive.Service.UserService.Models.Database;
+
+[Index(nameof(OAuthProviderId), IsUnique = true)]
+public class User : BaseEntity<Guid>
+{
+    public string Username { get; set; }
+    public string Email { get; set; }
+    public string OAuthProviderId { get; set; }
+    
+    
+    public bool Disabled { get; set; }
+    
+    /// <summary>
+    /// The user that generated an invite used by this user.
+    /// </summary>
+    public User? Inviter { get; set; }
+}

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

@@ -0,0 +1,16 @@
+using FictionArchive.Service.Shared.Services.EventBus;
+
+namespace FictionArchive.Service.UserService.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.UserService/Program.cs

@@ -0,0 +1,52 @@
+using FictionArchive.Service.Shared.Extensions;
+using FictionArchive.Service.Shared.Services.EventBus.Implementations;
+using FictionArchive.Service.UserService.GraphQL;
+using FictionArchive.Service.UserService.Models.IntegrationEvents;
+using FictionArchive.Service.UserService.Services;
+using FictionArchive.Service.UserService.Services.EventHandlers;
+
+namespace FictionArchive.Service.UserService;
+
+public class Program
+{
+    public static void Main(string[] args)
+    {
+        var builder = WebApplication.CreateBuilder(args);
+        
+        #region Event Bus
+
+        builder.Services.AddRabbitMQ(opt =>
+        {
+            builder.Configuration.GetSection("RabbitMQ").Bind(opt);
+        })
+        .Subscribe<AuthUserAddedEvent, AuthUserAddedEventHandler>();
+        
+        #endregion
+        
+        #region GraphQL
+        
+        builder.Services.AddDefaultGraphQl<Query, Mutation>();
+        
+        #endregion
+        
+        builder.Services.RegisterDbContext<UserServiceDbContext>(builder.Configuration.GetConnectionString("DefaultConnection"));
+        builder.Services.AddTransient<UserManagementService>();
+
+        builder.Services.AddHealthChecks();
+        
+        var app = builder.Build();
+        
+        // Update database
+        using (var scope = app.Services.CreateScope())
+        {
+            var dbContext = scope.ServiceProvider.GetRequiredService<UserServiceDbContext>();
+            dbContext.UpdateDatabase();
+        }
+        
+        app.MapGraphQL();
+        
+        app.MapHealthChecks("/healthz");
+
+        app.RunWithGraphQLCommands(args);
+    }
+}

FictionArchive.Service.UserService/Properties/launchSettings.json

@@ -0,0 +1,39 @@
+{
+  "$schema": "http://json.schemastore.org/launchsettings.json",
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:20480",
+      "sslPort": 44309
+    }
+  },
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "applicationUrl": "http://localhost:5145",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "https": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "launchUrl": "graphql",
+      "applicationUrl": "https://localhost:7157;http://localhost:5145",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

FictionArchive.Service.UserService/Services/EventHandlers/AuthUserAddedEventHandler.cs

@@ -0,0 +1,23 @@
+using FictionArchive.Service.Shared.Services.EventBus;
+using FictionArchive.Service.UserService.Models.IntegrationEvents;
+using FictionArchive.Service.UserService.Models.Database;
+using Microsoft.EntityFrameworkCore; // Add this line to include the UserModel
+
+namespace FictionArchive.Service.UserService.Services.EventHandlers;
+
+public class AuthUserAddedEventHandler : IIntegrationEventHandler<AuthUserAddedEvent>
+{
+    private readonly UserManagementService _userManagementService;
+    private readonly ILogger<AuthUserAddedEventHandler> _logger;
+
+    public AuthUserAddedEventHandler(UserServiceDbContext dbContext, ILogger<AuthUserAddedEventHandler> logger, UserManagementService userManagementService)
+    {
+        _logger = logger;
+        _userManagementService = userManagementService;
+    }
+
+    public async Task Handle(AuthUserAddedEvent @event)
+    {
+        await _userManagementService.RegisterUser(@event.EventUserUsername, @event.EventUserEmail, @event.OAuthProviderId, @event.InviterOAuthProviderId);
+    }
+}

FictionArchive.Service.UserService/Services/UserManagementService.cs

@@ -0,0 +1,45 @@
+using FictionArchive.Service.UserService.Models.Database;
+using Microsoft.EntityFrameworkCore;
+
+namespace FictionArchive.Service.UserService.Services;
+
+public class UserManagementService
+{
+    private readonly ILogger<UserManagementService> _logger;
+    private readonly UserServiceDbContext _dbContext;
+
+    public UserManagementService(UserServiceDbContext dbContext, ILogger<UserManagementService> logger)
+    {
+        _dbContext = dbContext;
+        _logger = logger;
+    }
+
+    public async Task<User> RegisterUser(string username, string email, string oAuthProviderId,
+        string? inviterOAuthProviderId)
+    {
+        var newUser = new User();
+        User? inviter =
+            await _dbContext.Users.FirstOrDefaultAsync(user => user.OAuthProviderId == inviterOAuthProviderId);
+        if (inviter == null && inviterOAuthProviderId != null)
+        {
+            _logger.LogCritical(
+                "A user with OAuthProviderId {OAuthProviderId} was marked as having inviter with OAuthProviderId {inviterOAuthProviderId}, but no user was found with that value.",
+                inviterOAuthProviderId, inviterOAuthProviderId);
+            newUser.Disabled = true;
+        }
+
+        newUser.Username = username;
+        newUser.Email = email;
+        newUser.OAuthProviderId = oAuthProviderId;
+
+        _dbContext.Users.Add(newUser); // Add the new user to the DbContext
+        await _dbContext.SaveChangesAsync(); // Save changes to the database
+        
+        return newUser;
+    }
+
+    public IQueryable<User> GetUsers()
+    {
+        return _dbContext.Users.AsQueryable();
+    }
+}

FictionArchive.Service.UserService/Services/UserServiceDbContext.cs

@@ -0,0 +1,14 @@
+using FictionArchive.Service.Shared.Services.Database;
+using FictionArchive.Service.UserService.Models.Database;
+using Microsoft.EntityFrameworkCore;
+
+namespace FictionArchive.Service.UserService.Services;
+
+public class UserServiceDbContext : FictionArchiveDbContext
+{
+    public DbSet<User> Users { get; set; }
+    
+    public UserServiceDbContext(DbContextOptions options, ILogger<UserServiceDbContext> logger) : base(options, logger)
+    {
+    }
+}

FictionArchive.Service.UserService/appsettings.Development.json

@@ -0,0 +1,8 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

FictionArchive.Service.UserService/appsettings.json

@@ -0,0 +1,16 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "ConnectionStrings": {
+    "DefaultConnection": "Host=localhost;Database=FictionArchive_UserService;Username=postgres;password=postgres"
+  },
+  "RabbitMQ": {
+    "ConnectionString": "amqp://localhost",
+    "ClientIdentifier": "UserService"
+  },
+  "AllowedHosts": "*"
+}

FictionArchive.Service.UserService/subgraph-config.json

@@ -0,0 +1,6 @@
+{
+  "subgraph": "User",
+  "http": {
+    "baseAddress": "http://localhost:5145/graphql"
+  }
+}

FictionArchive.sln

@@ -12,6 +12,14 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FictionArchive.Service.Shar
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FictionArchive.Service.SchedulerService", "FictionArchive.Service.SchedulerService\FictionArchive.Service.SchedulerService.csproj", "{6813A8AD-A071-4F86-B227-BC4A5BCD7F3C}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FictionArchive.Service.UserService", "FictionArchive.Service.UserService\FictionArchive.Service.UserService.csproj", "{EE4D4795-2F79-4614-886D-AF8DA77120AC}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FictionArchive.Service.AuthenticationService", "FictionArchive.Service.AuthenticationService\FictionArchive.Service.AuthenticationService.csproj", "{70C4AE82-B01E-421D-B590-C0F47E63CD0C}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FictionArchive.Service.FileService", "FictionArchive.Service.FileService\FictionArchive.Service.FileService.csproj", "{EC64A336-F8A0-4BED-9CA3-1B05AD00631D}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FictionArchive.Service.NovelService.Tests", "FictionArchive.Service.NovelService.Tests\FictionArchive.Service.NovelService.Tests.csproj", "{166E645E-9DFB-44E8-8CC8-FA249A11679F}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -42,5 +50,21 @@ Global
 		{6813A8AD-A071-4F86-B227-BC4A5BCD7F3C}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{6813A8AD-A071-4F86-B227-BC4A5BCD7F3C}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{6813A8AD-A071-4F86-B227-BC4A5BCD7F3C}.Release|Any CPU.Build.0 = Release|Any CPU
+		{EE4D4795-2F79-4614-886D-AF8DA77120AC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{EE4D4795-2F79-4614-886D-AF8DA77120AC}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{EE4D4795-2F79-4614-886D-AF8DA77120AC}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{EE4D4795-2F79-4614-886D-AF8DA77120AC}.Release|Any CPU.Build.0 = Release|Any CPU
+		{70C4AE82-B01E-421D-B590-C0F47E63CD0C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{70C4AE82-B01E-421D-B590-C0F47E63CD0C}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{70C4AE82-B01E-421D-B590-C0F47E63CD0C}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{70C4AE82-B01E-421D-B590-C0F47E63CD0C}.Release|Any CPU.Build.0 = Release|Any CPU
+		{EC64A336-F8A0-4BED-9CA3-1B05AD00631D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{EC64A336-F8A0-4BED-9CA3-1B05AD00631D}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{EC64A336-F8A0-4BED-9CA3-1B05AD00631D}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{EC64A336-F8A0-4BED-9CA3-1B05AD00631D}.Release|Any CPU.Build.0 = Release|Any CPU
+		{166E645E-9DFB-44E8-8CC8-FA249A11679F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{166E645E-9DFB-44E8-8CC8-FA249A11679F}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{166E645E-9DFB-44E8-8CC8-FA249A11679F}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{166E645E-9DFB-44E8-8CC8-FA249A11679F}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 EndGlobal