LightlessClient/CONTRIBUTING.md

# Lightless Sync Development Guidelines

This document outlines the coding standards, architectural patterns, and best practices for contributing to the Lightless Sync project.

## Table of Contents

1. [Project Structure](#project-structure)
2. [Coding Standards](#coding-standards)
3. [Architecture Patterns](#architecture-patterns)
4. [Dependency Injection](#dependency-injection)
5. [Mediator Pattern](#mediator-pattern)
6. [Service Development](#service-development)
7. [UI Development](#ui-development)
8. [Dalamud Integration](#dalamud-integration)
9. [Performance Considerations](#performance-considerations)
10. [Testing](#testing)
11. [Common Patterns](#common-patterns)

---

## Project Structure

### Directory Organization

```
LightlessSync/
├── Changelog/              # Version history and update notes
├── FileCache/              # File caching and management
├── Interop/                # Game interop and IPC with other plugins
│   └── Ipc/               # IPC callers for external plugins
├── LightlessConfiguration/ # Configuration management
├── PlayerData/             # Player data handling and pairs
│   ├── Factories/
│   ├── Handlers/
│   ├── Pairs/
│   └── Services/
├── Services/               # Core business logic services
│   ├── CharaData/         # Character data management
│   ├── Events/            # Event aggregation
│   ├── Mediator/          # Mediator pattern implementation
│   └── ServerConfiguration/
├── UI/                     # ImGui-based user interfaces
│   ├── Components/        # Reusable UI components
│   ├── Handlers/          # UI event handlers
│   └── Models/            # UI data models
├── Utils/                  # Utility classes
└── WebAPI/                # SignalR and HTTP client logic
    ├── Files/             # File transfer operations
    └── SignalR/           # SignalR hub connections
```

### File Organization Rules

- **One primary class per file**: File name must match the primary type name
- **Partial classes**: Use for large classes (e.g., `CharaDataManager.cs`, `CharaDataManager.Upload.cs`)
- **Nested types**: Keep in the same file unless they grow large enough to warrant separation
- **Interfaces**: Prefix with `I` (e.g., `IIpcCaller`, `IMediatorSubscriber`)

---

## Coding Standards

### General C# Conventions

Follow the `.editorconfig` settings:

```ini
# Indentation
indent_size = 4
tab_width = 4
end_of_line = crlf

# Naming
- Interfaces: IPascalCase (begins with I)
- Types: PascalCase
- Methods: PascalCase
- Properties: PascalCase
- Private fields: _camelCase (underscore prefix)
- Local variables: camelCase
- Parameters: camelCase
- Constants: PascalCase or UPPER_CASE
```

### Code Style Preferences

#### Namespaces
```csharp
// Use block-scoped namespaces (not file-scoped)
namespace LightlessSync.Services;

public class MyService
{
    // ...
}
```

#### Braces
```csharp
// Always use braces for control statements
if (condition)
{
    DoSomething();
}

// Even for single-line statements
if (condition)
{
    return;
}
```

#### Expression-Bodied Members
```csharp
// Prefer expression bodies for properties and accessors
public string Name { get; init; } = string.Empty;
public bool IsEnabled => _config.Current.Enabled;

// Avoid for methods, constructors, and operators
public void DoWork()
{
    // Full method body
}
```

#### Object Initialization
```csharp
// Prefer object initializers
var notification = new LightlessNotification
{
    Id = "example",
    Title = "Example",
    Message = "This is an example",
    Type = NotificationType.Info
};

// Prefer collection initializers
var list = new List<string> { "item1", "item2", "item3" };
```

#### Null Handling
```csharp
// Prefer null coalescing
var value = possiblyNull ?? defaultValue;

// Prefer null propagation
var length = text?.Length ?? 0;

// Prefer pattern matching for null checks
if (value is null)
{
    return;
}

// Use nullable reference types
public string? OptionalValue { get; set; }
public string RequiredValue { get; set; } = string.Empty;
```

#### Modern C# Features
```csharp
// Use target-typed new expressions when type is apparent
List<string> items = new();
Dictionary<string, int> map = new();

// Use primary constructors sparingly (prefer traditional constructors for clarity)
// AVOID: public class MyService(ILogger logger) : IService

// Use record types for DTOs and immutable data
public record UserData(string Name, string Id);
public record struct PairRequestEntry(string HashedCid, string MessageTemplate, DateTime ReceivedAt);

// Use pattern matching
if (obj is MyType { Property: "value" } typedObj)
{
    // Use typedObj
}
```

---

## Architecture Patterns

### Mediator Pattern (Core Communication)

The Lightless Sync uses a **custom mediator pattern** for decoupled communication between components.

#### Key Components

1. **LightlessMediator**: Central message bus
2. **MessageBase**: Base class for all messages
3. **IMediatorSubscriber**: Interface for subscribers
4. **MediatorSubscriberBase**: Base class with auto-cleanup

#### Creating Messages

```csharp
// In Services/Mediator/Messages.cs
public record MyCustomMessage(string Data, int Value) : MessageBase;

// For messages that need to stay on the same thread
public record SynchronousMessage : MessageBase
{
    public override bool KeepThreadContext => true;
}
```

#### Subscribing to Messages

```csharp
public class MyService : DisposableMediatorSubscriberBase, IHostedService
{
    public MyService(ILogger<MyService> logger, LightlessMediator mediator)
        : base(logger, mediator)
    {
    }

    public Task StartAsync(CancellationToken cancellationToken)
    {
        // Subscribe to messages
        Mediator.Subscribe<MyCustomMessage>(this, HandleMyMessage);
        Mediator.Subscribe<AnotherMessage>(this, HandleAnotherMessage);
        return Task.CompletedTask;
    }

    private void HandleMyMessage(MyCustomMessage message)
    {
        Logger.LogDebug("Received: {Data}, {Value}", message.Data, message.Value);
        // Handle the message
    }

    public Task StopAsync(CancellationToken cancellationToken)
    {
        // Cleanup is automatic with DisposableMediatorSubscriberBase
        return Task.CompletedTask;
    }
}
```

#### Publishing Messages

```csharp
// Publish to all subscribers
Mediator.Publish(new MyCustomMessage("test", 42));

// Publish from non-mediator classes
_mediator.Publish(new NotificationMessage(
    "Title",
    "Message",
    NotificationType.Info));
```

#### Message Guidelines

- **Use records** for messages (immutable and concise)
- **Keep messages simple**: Only carry data, no logic
- **Name clearly**: `<Action><Subject>Message` (e.g., `PairRequestReceivedMessage`)
- **Thread-safe data**: Messages are processed asynchronously unless `KeepThreadContext = true`
- **Avoid circular dependencies**: Messages should flow in one direction

---

## Dependency Injection

### Service Registration (Plugin.cs)

```csharp
// In Plugin.cs constructor:
.ConfigureServices(collection =>
{
    // Singleton services (shared state, long-lived)
    collection.AddSingleton<LightlessMediator>();
    collection.AddSingleton<ApiController>();
    collection.AddSingleton<PairManager>();
    
    // Scoped services (per-resolution scope)
    collection.AddScoped<UiService>();
    collection.AddScoped<CacheMonitor>();
    
    // Hosted services (background services with lifecycle)
    collection.AddHostedService(p => p.GetRequiredService<LightlessMediator>());
    collection.AddHostedService(p => p.GetRequiredService<NotificationService>());
    
    // Lazy dependencies (avoid circular dependencies)
    collection.AddSingleton(s => new Lazy<ApiController>(() => s.GetRequiredService<ApiController>()));
    
    // Factory pattern
    collection.AddSingleton<GameObjectHandlerFactory>();
})
```

### Service Patterns

#### Standard Service
```csharp
public class MyService
{
    private readonly ILogger<MyService> _logger;
    private readonly SomeDependency _dependency;

    public MyService(
        ILogger<MyService> logger,
        SomeDependency dependency)
    {
        _logger = logger;
        _dependency = dependency;
    }

    public void DoWork()
    {
        _logger.LogInformation("Working...");
        _dependency.PerformAction();
    }
}
```

#### Hosted Service (Background Service)
```csharp
public class MyHostedService : IHostedService, IMediatorSubscriber
{
    private readonly ILogger<MyHostedService> _logger;
    private readonly LightlessMediator _mediator;

    public LightlessMediator Mediator => _mediator;

    public MyHostedService(
        ILogger<MyHostedService> logger,
        LightlessMediator mediator)
    {
        _logger = logger;
        _mediator = mediator;
    }

    public Task StartAsync(CancellationToken cancellationToken)
    {
        _logger.LogInformation("Starting {Service}", nameof(MyHostedService));
        
        // Subscribe to mediator messages
        _mediator.Subscribe<SomeMessage>(this, HandleSomeMessage);
        
        // Initialize resources
        return Task.CompletedTask;
    }

    public Task StopAsync(CancellationToken cancellationToken)
    {
        _logger.LogInformation("Stopping {Service}", nameof(MyHostedService));
        
        // Cleanup
        _mediator.UnsubscribeAll(this);
        
        return Task.CompletedTask;
    }

    private void HandleSomeMessage(SomeMessage msg)
    {
        // Handle message
    }
}
```

#### Mediator Subscriber Service
```csharp
public sealed class MyService : DisposableMediatorSubscriberBase
{
    private readonly SomeDependency _dependency;

    public MyService(
        ILogger<MyService> logger,
        LightlessMediator mediator,
        SomeDependency dependency)
        : base(logger, mediator)
    {
        _dependency = dependency;
        
        // Subscribe in constructor or in separate Init method
        Mediator.Subscribe<SomeMessage>(this, HandleMessage);
    }

    private void HandleMessage(SomeMessage msg)
    {
        Logger.LogDebug("Handling message: {Msg}", msg);
        // Process message
    }

    // Dispose is handled by base class
}
```

---

## Service Development

### Service Responsibilities

Services should follow **Single Responsibility Principle**:

- **NotificationService**: Handles all in-game notifications
- **BroadcastService**: Manages Lightfinder broadcast state
- **PairRequestService**: Manages incoming pair requests
- **DalamudUtilService**: Utility methods for Dalamud framework operations

### Service Guidelines

1. **Logging**: Always use `ILogger<T>` with appropriate log levels
2. **Error Handling**: Wrap risky operations in try-catch, log exceptions
3. **Async/Await**: Use `ConfigureAwait(false)` for non-UI operations
4. **Thread Safety**: Use locks, `ConcurrentDictionary`, or `SemaphoreSlim` for shared state
5. **Disposal**: Implement `IDisposable` or inherit from `DisposableMediatorSubscriberBase`

### Example Service Template

```csharp
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;

namespace LightlessSync.Services;

public sealed class TemplateService : DisposableMediatorSubscriberBase, IHostedService
{
    private readonly ILogger<TemplateService> _logger;
    private readonly SomeDependency _dependency;
    private readonly SemaphoreSlim _lock = new(1);
    
    public TemplateService(
        ILogger<TemplateService> logger,
        LightlessMediator mediator,
        SomeDependency dependency)
        : base(logger, mediator)
    {
        _logger = logger;
        _dependency = dependency;
    }

    public Task StartAsync(CancellationToken cancellationToken)
    {
        _logger.LogInformation("Starting {Service}", nameof(TemplateService));
        
        Mediator.Subscribe<SomeMessage>(this, HandleSomeMessage);
        
        return Task.CompletedTask;
    }

    public Task StopAsync(CancellationToken cancellationToken)
    {
        _logger.LogInformation("Stopping {Service}", nameof(TemplateService));
        
        _lock.Dispose();
        
        return Task.CompletedTask;
    }

    private async void HandleSomeMessage(SomeMessage msg)
    {
        await _lock.WaitAsync().ConfigureAwait(false);
        try
        {
            _logger.LogDebug("Processing message: {Msg}", msg);
            
            // Do work
            await _dependency.ProcessAsync(msg).ConfigureAwait(false);
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Failed to process message");
        }
        finally
        {
            _lock.Release();
        }
    }

    protected override void Dispose(bool disposing)
    {
        if (disposing)
        {
            _lock?.Dispose();
        }
        
        base.Dispose(disposing);
    }
}
```

---

## UI Development

### UI Base Classes

All UI windows inherit from `WindowMediatorSubscriberBase`:

```csharp
public class MyWindow : WindowMediatorSubscriberBase
{
    private readonly UiSharedService _uiShared;

    public MyWindow(
        ILogger<MyWindow> logger,
        LightlessMediator mediator,
        UiSharedService uiShared,
        PerformanceCollectorService performanceCollector)
        : base(logger, mediator, "My Window Title", performanceCollector)
    {
        _uiShared = uiShared;

        // Window configuration
        Flags = ImGuiWindowFlags.NoScrollbar | ImGuiWindowFlags.NoScrollWithMouse;
        SizeConstraints = new WindowSizeConstraints
        {
            MinimumSize = new Vector2(600, 400),
            MaximumSize = new Vector2(800, 600)
        };
    }

    protected override void DrawInternal()
    {
        // ImGui drawing code here
        ImGui.Text("Hello, World!");
    }
}
```

### UI Guidelines

1. **Separation of Concerns**: UI should only handle rendering and user input
2. **Use UiSharedService**: Centralized UI utilities (icons, buttons, styling)
3. **Performance**: Use `PerformanceCollectorService` to track rendering performance
4. **Disposal**: Windows are scoped; don't store state that needs to persist
5. **Mediator**: Use mediator to communicate with services
6. **ImGui Best Practices**:
   - Use `ImRaii` for push/pop operations
   - Always pair `Begin`/`End` calls
   - Use `ImGuiHelpers.ScaledDummy()` for responsive spacing
   - Check `IsOpen` property for visibility

### ImGui Patterns

```csharp
// Using ImRaii for automatic cleanup
using (ImRaii.PushColor(ImGuiCol.Button, UIColors.Get("LightlessGreen")))
using (ImRaii.PushStyle(ImGuiStyleVar.FrameRounding, 6f))
{
    if (ImGui.Button("Styled Button"))
    {
        // Handle click
    }
}

// Tab bars
using (var tabBar = ImRaii.TabBar("###my_tabs"))
{
    if (!tabBar) return;

    using (var tab1 = ImRaii.TabItem("Tab 1"))
    {
        if (tab1)
        {
            ImGui.Text("Tab 1 content");
        }
    }

    using (var tab2 = ImRaii.TabItem("Tab 2"))
    {
        if (tab2)
        {
            ImGui.Text("Tab 2 content");
        }
    }
}

// Child windows for scrolling regions
using (var child = ImRaii.Child("###content", new Vector2(0, -40), false, 
    ImGuiWindowFlags.AlwaysVerticalScrollbar))
{
    if (!child) return;
    
    // Scrollable content here
}
```

---

## Dalamud Integration

### Dalamud Services

Dalamud provides various services accessible through constructor injection:

```csharp
// Common Dalamud services:
IClientState clientState      // Player and world state
IFramework framework          // Game framework events
IObjectTable objectTable      // Game objects (players, NPCs, etc.)
IChatGui chatGui             // Chat window access
ICommandManager commandManager // Command registration
IDataManager gameData        // Game data sheets
IPluginLog pluginLog        // Logging
INotificationManager notificationManager // Toast notifications
IGameGui gameGui            // Game UI access
ITextureProvider textureProvider // Icon/texture loading
```

### Framework Threading

**CRITICAL**: Dalamud operates on the **game's main thread**.

```csharp
// Safe: Already on framework thread
private void OnFrameworkUpdate(IFramework framework)
{
    // Can safely access game state
    var player = _clientState.LocalPlayer;
}

// Unsafe: Called from background thread
private async Task BackgroundWork()
{
    // DO NOT access game state here!
    
    // Use DalamudUtilService to run on framework thread
    await _dalamudUtil.RunOnFrameworkThread(() =>
    {
        // Now safe to access game state
        var player = _clientState.LocalPlayer;
    });
}
```

### Game Object Access

```csharp
// Always check for null
var player = _clientState.LocalPlayer;
if (player == null)
{
    return;
}

// Iterating game objects
foreach (var obj in _objectTable)
{
    if (obj is IPlayerCharacter pc)
    {
        // Handle player character
    }
}

// Finding specific objects
var target = _targetManager.Target;
if (target is IPlayerCharacter targetPlayer)
{
    // Handle targeted player
}
```

### IPC with Other Plugins

Use the IPC pattern for communicating with other Dalamud plugins:

```csharp
public sealed class IpcCallerExample : DisposableMediatorSubscriberBase, IIpcCaller
{
    private readonly IDalamudPluginInterface _pi;
    private readonly ICallGateSubscriber<int> _apiVersion;

    public string Name => "ExamplePlugin";
    public bool Available { get; private set; }

    public IpcCallerExample(
        ILogger<IpcCallerExample> logger,
        IDalamudPluginInterface pluginInterface,
        LightlessMediator mediator)
        : base(logger, mediator)
    {
        _pi = pluginInterface;
        
        try
        {
            _apiVersion = _pi.GetIpcSubscriber<int>("ExamplePlugin.GetApiVersion");
            CheckAvailability();
        }
        catch (Exception ex)
        {
            Logger.LogWarning(ex, "Failed to initialize IPC for ExamplePlugin");
        }
    }

    private void CheckAvailability()
    {
        try
        {
            var version = _apiVersion.InvokeFunc();
            Available = version >= 1;
            Logger.LogInformation("ExamplePlugin available, version: {Version}", version);
        }
        catch
        {
            Available = false;
        }
    }

    public void DoSomething()
    {
        if (!Available)
        {
            Logger.LogWarning("ExamplePlugin not available");
            return;
        }

        // Call IPC methods
    }
}
```

---

## Performance Considerations

### Framework Updates

The game runs at ~60 FPS. Avoid heavy operations in framework updates:

```csharp
Mediator.Subscribe<PriorityFrameworkUpdateMessage>(this, OnTick);

private void OnTick(PriorityFrameworkUpdateMessage _)
{
    // Throttle expensive operations
    if ((DateTime.UtcNow - _lastCheck).TotalSeconds < 1)
    {
        return;
    }
    _lastCheck = DateTime.UtcNow;

    // Do lightweight work only
}
```

### Async Operations

```csharp
// Good: Non-blocking async
public async Task<Data> FetchDataAsync()
{
    var result = await _httpClient.GetAsync(url).ConfigureAwait(false);
    return await result.Content.ReadFromJsonAsync<Data>().ConfigureAwait(false);
}

// Bad: Blocking async
public Data FetchDataBlocking()
{
    return FetchDataAsync().GetAwaiter().GetResult(); // Blocks thread!
}
```

### Collection Performance

```csharp
// Good: Thread-safe concurrent collections
private readonly ConcurrentDictionary<string, Data> _cache = new();

// Good: Lock-protected regular collections
private readonly List<Item> _items = new();
private readonly object _itemsLock = new();

public void AddItem(Item item)
{
    lock (_itemsLock)
    {
        _items.Add(item);
    }
}

// Good: SemaphoreSlim for async locks
private readonly SemaphoreSlim _asyncLock = new(1);

public async Task ProcessAsync()
{
    await _asyncLock.WaitAsync().ConfigureAwait(false);
    try
    {
        // Critical section
    }
    finally
    {
        _asyncLock.Release();
    }
}
```

### Memory Management

```csharp
// Dispose pattern for unmanaged resources
public class ResourceManager : IDisposable
{
    private bool _disposed;
    private readonly SemaphoreSlim _semaphore = new(1);

    public void Dispose()
    {
        Dispose(true);
        GC.SuppressFinalize(this);
    }

    protected virtual void Dispose(bool disposing)
    {
        if (_disposed) return;

        if (disposing)
        {
            // Dispose managed resources
            _semaphore?.Dispose();
        }

        // Free unmanaged resources

        _disposed = true;
    }
}
```

---

## Testing

### Unit Testing

```csharp
[TestClass]
public class MyServiceTests
{
    private Mock<ILogger<MyService>> _mockLogger;
    private Mock<LightlessMediator> _mockMediator;
    private MyService _service;

    [TestInitialize]
    public void Setup()
    {
        _mockLogger = new Mock<ILogger<MyService>>();
        _mockMediator = new Mock<LightlessMediator>();
        _service = new MyService(_mockLogger.Object, _mockMediator.Object);
    }

    [TestMethod]
    public void DoWork_WithValidInput_ReturnsExpectedResult()
    {
        // Arrange
        var input = "test";

        // Act
        var result = _service.DoWork(input);

        // Assert
        Assert.AreEqual("expected", result);
    }
}
```

### Integration Testing

Test with real Dalamud services in a controlled environment:

```csharp
// Create test harness that mimics Dalamud environment
public class DalamudTestHarness
{
    public IClientState ClientState { get; }
    public IFramework Framework { get; }
    // ... other services

    public void SimulateFrameworkUpdate()
    {
        // Trigger framework update event
    }
}
```

---

## Common Patterns

### Notification Pattern

```csharp
// Simple notification
Mediator.Publish(new NotificationMessage(
    "Title",
    "Message body",
    NotificationType.Info));

// Rich notification with actions
var notification = new LightlessNotification
{
    Id = "unique_id",
    Title = "Action Required",
    Message = "Do you want to proceed?",
    Type = NotificationType.Warning,
    Duration = TimeSpan.FromSeconds(10),
    Actions = new List<LightlessNotificationAction>
    {
        new()
        {
            Id = "confirm",
            Label = "Confirm",
            Icon = FontAwesomeIcon.Check,
            Color = UIColors.Get("LightlessGreen"),
            IsPrimary = true,
            OnClick = (n) =>
            {
                _logger.LogInformation("User confirmed");
                DoAction();
                n.IsDismissed = true;
            }
        },
        new()
        {
            Id = "cancel",
            Label = "Cancel",
            Icon = FontAwesomeIcon.Times,
            OnClick = (n) => n.IsDismissed = true
        }
    }
};

Mediator.Publish(new LightlessNotificationMessage(notification));
```

### Configuration Pattern

```csharp
public class MyConfigService : ConfigurationServiceBase<MyConfig>
{
    public MyConfigService(string configDirectory)
        : base(Path.Combine(configDirectory, "myconfig.json"))
    {
    }
}

// Usage
_configService.Current.SomeSetting = newValue;
_configService.Save();
```

### Factory Pattern

```csharp
public class GameObjectHandlerFactory
{
    private readonly DalamudUtilService _dalamudUtil;
    private readonly LightlessMediator _mediator;

    public GameObjectHandlerFactory(
        DalamudUtilService dalamudUtil,
        LightlessMediator mediator)
    {
        _dalamudUtil = dalamudUtil;
        _mediator = mediator;
    }

    public GameObjectHandler Create(IntPtr address, string identifier)
    {
        return new GameObjectHandler(
            _dalamudUtil,
            _mediator,
            () => address,
            identifier);
    }
}
```

---

## Error Handling

### Logging Guidelines

```csharp
// Debug: Verbose information for debugging
_logger.LogDebug("Processing request {RequestId}", requestId);

// Information: General informational messages
_logger.LogInformation("User {UserId} connected", userId);

// Warning: Recoverable issues
_logger.LogWarning("Cache miss for {Key}, will fetch from server", key);

// Error: Errors that need attention
_logger.LogError(ex, "Failed to process message {MessageId}", messageId);

// Critical: Application-breaking errors
_logger.LogCritical(ex, "Database connection failed");
```

### Exception Handling

```csharp
public async Task<Result> DoWorkAsync()
{
    try
    {
        // Risky operation
        return await PerformOperationAsync().ConfigureAwait(false);
    }
    catch (HttpRequestException ex)
    {
        _logger.LogError(ex, "Network error during operation");
        // Show user-friendly notification
        Mediator.Publish(new NotificationMessage(
            "Network Error",
            "Failed to connect to server. Please check your connection.",
            NotificationType.Error));
        return Result.Failure;
    }
    catch (Exception ex)
    {
        _logger.LogError(ex, "Unexpected error during operation");
        throw; // Re-throw unexpected exceptions
    }
}
```

---

## Best Practices Summary

### DO ✅

- Use `DisposableMediatorSubscriberBase` for services that subscribe to mediator
- Use `IHostedService` for background services
- Always inject `ILogger<T>` for logging
- Use `ConfigureAwait(false)` for async operations not requiring UI thread
- Dispose of resources properly (SemaphoreSlim, HttpClient, etc.)
- Check for null when accessing Dalamud game objects
- Use thread-safe collections for shared state
- Keep UI logic separate from business logic
- Use mediator for cross-component communication
- Write unit tests for business logic
- Document public APIs with XML comments

### DON'T ❌

- Don't access game objects from background threads without `RunOnFrameworkThread`
- Don't block async methods with `.Result` or `.Wait()`
- Don't store UI state in services (services are often singletons)
- Don't use `async void` except for event handlers
- Don't catch `Exception` without re-throwing or logging
- Don't create circular dependencies between services
- Don't perform heavy operations in framework updates
- Don't forget to unsubscribe from mediator messages
- Don't hardcode file paths (use `IDalamudPluginInterface.ConfigDirectory`)
- Don't use primary constructors (prefer traditional for clarity)

---

## Code Review Checklist

Before submitting a pull request, ensure:

- [ ] Code follows naming conventions
- [ ] All new services are registered in `Plugin.cs`
- [ ] Mediator messages are defined in `Messages.cs`
- [ ] Logging is appropriate and informative
- [ ] Thread safety is considered for shared state
- [ ] Disposable resources are properly disposed
- [ ] Async operations use `ConfigureAwait(false)`
- [ ] UI code is separated from business logic
- [ ] No direct game object access from background threads
- [ ] Error handling is comprehensive
- [ ] Performance impact is considered
- [ ] Comments explain "why", not "what"
- [ ] No compiler warnings
- [ ] Tests pass (if applicable)

---

## Resources

- [Dalamud Documentation](https://dalamud.dev)
- [ImGui.NET Documentation](https://github.com/mellinoe/ImGui.NET)
- [C# Coding Conventions](https://learn.microsoft.com/en-us/dotnet/csharp/fundamentals/coding-style/coding-conventions)
- [.NET API Guidelines](https://github.com/dotnet/runtime/blob/main/docs/coding-guidelines/api-guidelines)

---

**Happy Coding!** 🚀