Add PluginManager

src/Impostor.Api/Plugins/IPluginInformation.cs

@@ -0,0 +1,42 @@
+using System;
+
+namespace Impostor.Api.Plugins
+{
+    public interface IPluginInformation
+    {
+        /// <summary>
+        /// Gets the unique id of this plugin.
+        /// </summary>
+        string Id { get; }
+
+        /// <summary>
+        /// Gets the human readable name of this plugin.
+        /// </summary>
+        string Name { get; }
+
+        /// <summary>
+        /// Gets the author of this plugin.
+        /// </summary>
+        string Author { get; }
+
+        /// <summary>
+        /// Gets the version of this plugin.
+        /// </summary>
+        string Version { get; }
+
+        /// <summary>
+        /// Gets the optional startup object of this plugin.
+        /// </summary>
+        IPluginStartup? Startup { get; }
+
+        /// <summary>
+        /// Gets the instance of this plugin.
+        /// </summary>
+        IPlugin? Instance { get; }
+
+        /// <summary>
+        /// Gets the instance type of this plugin.
+        /// </summary>
+        Type PluginType { get; }
+    }
+}

src/Impostor.Api/Plugins/IPluginManager.cs

@@ -0,0 +1,9 @@
+using System.Collections.Generic;
+
+namespace Impostor.Api.Plugins
+{
+    public interface IPluginManager
+    {
+        IReadOnlyList<IPluginInformation> Plugins { get; }
+    }
+}

src/Impostor.Plugins.Example/ExamplePlugin.cs

@@ -1,3 +1,4 @@
+using System.Linq;
 using System.Threading.Tasks;
 using Impostor.Api.Games.Managers;
 using Impostor.Api.Innersloth;
@@ -11,17 +12,21 @@ namespace Impostor.Plugins.Example
     {
         private readonly ILogger<ExamplePlugin> _logger;
         private readonly IGameManager _gameManager;
+        private readonly IPluginManager _pluginManager;
 
-        public ExamplePlugin(ILogger<ExamplePlugin> logger, IGameManager gameManager)
+        public ExamplePlugin(ILogger<ExamplePlugin> logger, IGameManager gameManager, IPluginManager pluginManager)
         {
             _logger = logger;
             _gameManager = gameManager;
+            _pluginManager = pluginManager;
         }
 
         public override async ValueTask EnableAsync()
         {
             _logger.LogInformation("Example is being enabled.");
 
+            _logger.LogInformation("Following plugins are installed: {@plugins}", _pluginManager.Plugins.Select(x => $"{x.Id} ({x.Version})"));
+
             var game = await _gameManager.CreateAsync(new GameOptionsData());
             if (game == null)
             {

src/Impostor.Server/Config/PluginLoaderConfig.cs

@@ -1,9 +1,11 @@
 using System.Collections.Generic;
 
-namespace Impostor.Server.Plugins
+namespace Impostor.Server.Config
 {
-    public class PluginConfig
+    public class PluginLoaderConfig
     {
+        public const string Section = "PluginLoader";
+
         public List<string> Paths { get; set; } = new List<string>();
 
         public List<string> LibraryPaths { get; set; } = new List<string>();

src/Impostor.Server/Impostor.Server.csproj

@@ -26,10 +26,12 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.Caching.StackExchangeRedis" Version="5.0.1" />
+    <PackageReference Include="Microsoft.Extensions.DependencyModel" Version="5.0.0" />
     <PackageReference Include="Microsoft.Extensions.FileSystemGlobbing" Version="5.0.0" />
     <PackageReference Include="Microsoft.Extensions.Hosting" Version="5.0.0" />
-    <PackageReference Include="Microsoft.Extensions.ObjectPool" Version="5.0.4" />
+    <PackageReference Include="Microsoft.Extensions.ObjectPool" Version="5.0.7" />
     <PackageReference Include="Serilog.Extensions.Hosting" Version="4.1.2" />
+    <PackageReference Include="Serilog.Settings.Configuration" Version="3.1.0" />
     <PackageReference Include="Serilog.Sinks.Console" Version="3.1.1" />
     <PackageReference Include="StyleCop.Analyzers.Unstable" Version="1.2.0.333">
       <PrivateAssets>all</PrivateAssets>

src/Impostor.Server/Plugins/AssemblyInformation.cs

@@ -8,17 +8,20 @@ namespace Impostor.Server.Plugins
     {
         private Assembly? _assembly;
 
-        public AssemblyInformation(AssemblyName assemblyName, string path, bool isPlugin)
+        public AssemblyInformation(AssemblyName assemblyName, string path, bool isPlugin, bool isDefaultAssembly)
         {
             AssemblyName = assemblyName;
             Path = path;
             IsPlugin = isPlugin;
+            IsDefaultAssembly = isDefaultAssembly;
         }
 
         public string Path { get; }
 
         public bool IsPlugin { get; }
 
+        public bool IsDefaultAssembly { get; }
+
         public AssemblyName AssemblyName { get; }
 
         public Assembly Load(AssemblyLoadContext context)

src/Impostor.Server/Plugins/IAssemblyInformation.cs

@@ -9,6 +9,8 @@ namespace Impostor.Server.Plugins
 
         bool IsPlugin { get; }
 
+        bool IsDefaultAssembly { get; }
+
         Assembly Load(AssemblyLoadContext context);
     }
 }

src/Impostor.Server/Plugins/LoadedAssemblyInformation.cs

@@ -7,16 +7,19 @@ namespace Impostor.Server.Plugins
     {
         private readonly Assembly _assembly;
 
-        public LoadedAssemblyInformation(Assembly assembly)
+        public LoadedAssemblyInformation(Assembly assembly, bool isDefaultAssembly)
         {
             AssemblyName = assembly.GetName();
             _assembly = assembly;
+            IsDefaultAssembly = isDefaultAssembly;
         }
 
         public AssemblyName AssemblyName { get; }
 
         public bool IsPlugin => false;
 
+        public bool IsDefaultAssembly { get; }
+
         public Assembly Load(AssemblyLoadContext context)
         {
             return _assembly;

src/Impostor.Server/Plugins/PluginAssemblyLoadContext.cs

@@ -0,0 +1,31 @@
+using System;
+using System.Collections.Generic;
+using System.Reflection;
+using System.Runtime.Loader;
+
+namespace Impostor.Server.Plugins
+{
+    public class PluginAssemblyLoadContext : AssemblyLoadContext, IDisposable
+    {
+        private readonly IDictionary<string, IAssemblyInformation> _assembliesByName;
+
+        public PluginAssemblyLoadContext(IDictionary<string, IAssemblyInformation> assembliesByName)
+            : base(true)
+        {
+            _assembliesByName = assembliesByName;
+        }
+
+        public void Dispose()
+        {
+            _assembliesByName.Clear();
+            this.Unload();
+        }
+
+        protected override Assembly? Load(AssemblyName name)
+        {
+            return name.Name != null && _assembliesByName.TryGetValue(name.Name, out var assemblyInfo)
+                ? assemblyInfo.Load(this)
+                : null;
+        }
+    }
+}

src/Impostor.Server/Plugins/PluginInformation.cs

@@ -6,7 +6,7 @@ using Impostor.Api.Plugins;
 
 namespace Impostor.Server.Plugins
 {
-    public class PluginInformation
+    public class PluginInformation : IPluginInformation
     {
         private readonly ImpostorPluginAttribute _attribute;
 

src/Impostor.Server/Plugins/PluginLoaderService.cs

@@ -1,5 +1,4 @@
 using System;
-using System.Collections.Generic;
 using System.Threading;
 using System.Threading.Tasks;
 using Impostor.Api.Plugins;
@@ -13,20 +12,20 @@ namespace Impostor.Server.Plugins
     {
         private readonly ILogger<PluginLoaderService> _logger;
         private readonly IServiceProvider _serviceProvider;
-        private readonly List<PluginInformation> _plugins;
+        private readonly PluginManager _pluginManager;
 
-        public PluginLoaderService(ILogger<PluginLoaderService> logger, IServiceProvider serviceProvider, List<PluginInformation> plugins)
+        public PluginLoaderService(ILogger<PluginLoaderService> logger, IServiceProvider serviceProvider, PluginManager pluginManager)
         {
             _logger = logger;
             _serviceProvider = serviceProvider;
-            _plugins = plugins;
+            _pluginManager = pluginManager;
         }
 
         public async Task StartAsync(CancellationToken cancellationToken)
         {
-            _logger.LogInformation("Loading plugins.");
+            _logger.LogInformation("Enabling plugins.");
 
-            foreach (var plugin in _plugins)
+            foreach (var plugin in _pluginManager.Plugins)
             {
                 _logger.LogInformation("Enabling plugin {0}.", plugin);
 
@@ -38,10 +37,10 @@ namespace Impostor.Server.Plugins
             }
 
             _logger.LogInformation(
-                _plugins.Count == 1
-                    ? "Loaded {0} plugin."
-                    : "Loaded {0} plugins.",
-                _plugins.Count
+                _pluginManager.Plugins.Count == 1
+                    ? "Enabled {0} plugin."
+                    : "Enabled {0} plugins.",
+                _pluginManager.Plugins.Count
             );
         }
 
@@ -49,7 +48,7 @@ namespace Impostor.Server.Plugins
         {
             // Disable all plugins with a valid instance set.
             // In the case of a failed startup, some can be null.
-            foreach (var plugin in _plugins)
+            foreach (var plugin in _pluginManager.Plugins)
             {
                 if (plugin.Instance != null)
                 {
@@ -57,6 +56,7 @@ namespace Impostor.Server.Plugins
 
                     // Disable plugin.
                     await plugin.Instance.DisableAsync();
+                    plugin.Instance = null;
                 }
             }
         }

src/Impostor.Server/Plugins/PluginManager.cs

@@ -4,24 +4,60 @@ using System.IO;
 using System.Linq;
 using System.Reflection;
 using System.Runtime.Loader;
+using System.Threading;
+using System.Threading.Tasks;
 using Impostor.Api.Plugins;
+using Impostor.Server.Config;
+using Impostor.Server.Plugins.Proxies;
+using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.FileSystemGlobbing;
 using Microsoft.Extensions.Hosting;
-using Serilog;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
 
 namespace Impostor.Server.Plugins
 {
-    public static class PluginLoader
+    public class PluginManager : IPluginManager, IHostedService
     {
-        private static readonly ILogger Logger = Log.ForContext(typeof(PluginLoader));
+        private readonly ILogger<PluginManager> _logger;
+        private readonly IOptions<PluginLoaderConfig> _pluginConfig;
+        private readonly IConfiguration _configuration;
+        private readonly IServiceProvider _serviceProvider;
+        private readonly ServiceProxyCollection _serviceProxyCollection;
 
-        public static IHostBuilder UsePluginLoader(this IHostBuilder builder, PluginConfig config)
+        private PluginAssemblyLoadContext? _currentContext;
+
+        public PluginManager(ILogger<PluginManager> logger, IOptions<PluginLoaderConfig> pluginConfig, IConfiguration configuration, IServiceProvider serviceProvider, ServiceProxyCollection serviceProxyCollection)
         {
-            var assemblyInfos = new List<IAssemblyInformation>();
-            var context = AssemblyLoadContext.Default;
+            _logger = logger;
+            _pluginConfig = pluginConfig;
+            _configuration = configuration;
+            _serviceProvider = serviceProvider;
+            _serviceProxyCollection = serviceProxyCollection;
+        }
 
+        public IHost? CurrentHost { get; private set; }
+
+        public List<PluginInformation> Plugins { get; } = new List<PluginInformation>();
+
+        IReadOnlyList<IPluginInformation> IPluginManager.Plugins => Plugins.AsReadOnly();
+
+        public Task StartAsync(CancellationToken cancellationToken)
+        {
+            CurrentHost = CreatePluginHost();
+            return CurrentHost.StartAsync(cancellationToken);
+        }
+
+        public Task StopAsync(CancellationToken cancellationToken)
+        {
+            return CurrentHost?.StopAsync(cancellationToken) ?? Task.CompletedTask;
+        }
+
+        private IDictionary<string, IAssemblyInformation> GetAssemblyInformation()
+        {
             // Add the plugins and libraries.
+            var config = _pluginConfig.Value;
             var pluginPaths = new List<string>(config.Paths);
             var libraryPaths = new List<string>(config.LibraryPaths);
             CheckPaths(pluginPaths);
@@ -35,38 +71,69 @@ namespace Impostor.Server.Plugins
             var matcher = new Matcher(StringComparison.OrdinalIgnoreCase);
             matcher.AddInclude("*.dll");
             matcher.AddExclude("Impostor.Api.dll");
+            matcher.AddExclude("Impostor.Server.dll");
 
-            RegisterAssemblies(pluginPaths, matcher, assemblyInfos, true);
-            RegisterAssemblies(libraryPaths, matcher, assemblyInfos, false);
+            var assembliesByName = AssemblyLoadContext.Default.Assemblies
+                .Where(a => a.GetName().Name != null)
+                .ToDictionary(
+                    a => a.GetName().Name!,
+                    a => (IAssemblyInformation)new LoadedAssemblyInformation(a, true));
 
-            // Register the resolver to the current context.
-            // TODO: Move this to a new context so we can unload/reload plugins.
-            context.Resolving += (loadContext, name) =>
+            RegisterAssemblies(assembliesByName, pluginPaths, matcher, true);
+            RegisterAssemblies(assembliesByName, libraryPaths, matcher, false);
+
+            return assembliesByName;
+        }
+
+        private IHost CreatePluginHost()
+        {
+            var assembliesByName = GetAssemblyInformation();
+            _currentContext ??= new PluginAssemblyLoadContext(assembliesByName);
+
+            var pluginHostBuilder = new HostBuilder()
+                .UseContentRoot(_configuration.GetValue<string>(HostDefaults.ContentRootKey))
+                .ConfigureHostConfiguration(builder => { builder.AddConfiguration(_configuration); })
+                .UseServiceProviderFactory(_ => new DefaultServiceProviderFactory());
+
+            Plugins.Clear();
+            Plugins.AddRange(GetPluginInformation(assembliesByName, _currentContext));
+
+            foreach (var plugin in Plugins)
             {
-                Logger.Verbose("Loading assembly {0} v{1}", name.Name, name.Version);
+                plugin.Startup?.ConfigureHost(pluginHostBuilder);
+            }
 
-                // Some plugins may be referencing another Impostor.Api version and try to load it.
-                // We want to only use the one shipped with the server.
-                if (name.Name == "Impostor.Api")
+            pluginHostBuilder.ConfigureServices(services =>
+            {
+                services.AddHostedService<PluginLoaderService>();
+
+                foreach (var (type, lifetime) in _serviceProxyCollection.ServiceTypes)
                 {
-                    return typeof(IPlugin).Assembly;
+                    services.Add(new ServiceDescriptor(
+                        type,
+                        _ => _serviceProvider.GetService(type)!,
+                        lifetime));
                 }
 
-                var info = assemblyInfos.FirstOrDefault(a => a.AssemblyName.Name == name.Name);
+                foreach (var plugin in Plugins)
+                {
+                    plugin.Startup?.ConfigureServices(services);
+                }
+            });
 
-                return info?.Load(loadContext);
-            };
+            return pluginHostBuilder.Build();
+        }
 
-            // TODO: Catch uncaught exceptions.
-            var assemblies = assemblyInfos
+        private List<PluginInformation> GetPluginInformation(IDictionary<string, IAssemblyInformation> assembliesByName, PluginAssemblyLoadContext context)
+        {
+            var plugins = new List<PluginInformation>();
+            var pluginAssemblies = assembliesByName
+                .Values
                 .Where(a => a.IsPlugin)
                 .Select(a => context.LoadFromAssemblyName(a.AssemblyName))
                 .ToList();
 
-            // Find all plugins.
-            var plugins = new List<PluginInformation>();
-
-            foreach (var assembly in assemblies)
+            foreach (var assembly in pluginAssemblies)
             {
                 // Find plugin startup.
                 var pluginStartup = assembly
@@ -76,7 +143,7 @@ namespace Impostor.Server.Plugins
 
                 if (pluginStartup.Count > 1)
                 {
-                    Logger.Warning("A plugin may only define zero or one IPluginStartup implementation ({0}).", assembly);
+                    _logger.LogWarning("A plugin may only define zero or one IPluginStartup implementation ({0}).", assembly);
                     continue;
                 }
 
@@ -91,7 +158,7 @@ namespace Impostor.Server.Plugins
 
                 if (plugin.Count != 1)
                 {
-                    Logger.Warning("A plugin must define exactly one IPlugin or PluginBase implementation ({0}).", assembly);
+                    _logger.LogWarning("A plugin must define exactly one IPlugin or PluginBase implementation ({0}).", assembly);
                     continue;
                 }
 
@@ -104,61 +171,75 @@ namespace Impostor.Server.Plugins
                     plugin.Single()));
             }
 
-            var orderedPlugins = LoadOrderPlugins(plugins);
-
-            foreach (var plugin in orderedPlugins)
-            {
-                plugin.Startup?.ConfigureHost(builder);
-            }
-
-            builder.ConfigureServices(services =>
-            {
-                services.AddHostedService(provider => ActivatorUtilities.CreateInstance<PluginLoaderService>(provider, orderedPlugins));
-
-                foreach (var plugin in orderedPlugins)
-                {
-                    plugin.Startup?.ConfigureServices(services);
-                }
-            });
-
-            return builder;
+            return OrderPlugins(plugins);
         }
 
-        private static void CheckPaths(IEnumerable<string> paths)
+        private void CheckPaths(IEnumerable<string> paths)
         {
             foreach (var path in paths)
             {
                 if (!Directory.Exists(path))
                 {
-                    Logger.Warning("Path {path} was specified in the PluginLoader configuration, but this folder doesn't exist!", path);
+                    _logger.LogWarning("Path {path} was specified in the PluginLoader configuration, but this folder doesn't exist!", path);
                 }
             }
         }
 
-        private static void RegisterAssemblies(
+        private void RegisterAssemblies(
+            IDictionary<string, IAssemblyInformation> assemblies,
             IEnumerable<string> paths,
             Matcher matcher,
-            ICollection<IAssemblyInformation> assemblyInfos,
             bool isPlugin)
         {
             foreach (var path in paths.SelectMany(matcher.GetResultsInFullPath))
             {
-                AssemblyName assemblyName;
+                AssemblyName name;
 
                 try
                 {
-                    assemblyName = AssemblyName.GetAssemblyName(path);
+                    name = AssemblyName.GetAssemblyName(path);
                 }
                 catch (BadImageFormatException)
                 {
                     continue;
                 }
 
-                assemblyInfos.Add(new AssemblyInformation(assemblyName, path, isPlugin));
+                if (name.Name == null)
+                {
+                    _logger.LogWarning(
+                        "Skipped {0} because the assembly name could not be resolved",
+                        path);
+                    continue;
+                }
+
+                if (assemblies.TryGetValue(name.Name, out var loaded))
+                {
+                    var version = name.Version;
+                    var loadedVersion = loaded.AssemblyName.Version;
+
+                    if (loadedVersion != null && version != null && version.Major != loadedVersion.Major)
+                    {
+                        _logger.LogError(
+                            "Assembly {0} is already loaded with version {1} while loading version {2}",
+                            name.Name,
+                            loadedVersion,
+                            version);
+                    }
+                    else
+                    {
+                        _logger.LogDebug("Skipped assembly {0} because it's already loaded", name.Name);
+                    }
+
+                    continue;
+                }
+
+                _logger.LogTrace("Registered assembly {name} v{version} ({path})", name.Name, name.Version, path);
+
+                assemblies.Add(name.Name, new AssemblyInformation(name, path, isPlugin, false));
             }
         }
 
-        private static List<PluginInformation> LoadOrderPlugins(IEnumerable<PluginInformation> plugins)
+        private List<PluginInformation> OrderPlugins(IEnumerable<PluginInformation> plugins)
         {
             var pluginDictionary = new Dictionary<string, PluginInformation>();
             var hardDependencies = new Dictionary<string, List<string>>();
@@ -208,7 +289,7 @@ namespace Impostor.Server.Plugins
             return ordered;
         }
 
-        private static List<string> CheckHardDependencies(
+        private List<string> CheckHardDependencies(
             List<string> plugins,
             IReadOnlyDictionary<string, List<string>> hardDependencies)
         {
@@ -221,7 +302,7 @@ namespace Impostor.Server.Plugins
 
                 foreach (var dependency in hardDependencies[plugin].Where(dependency => !plugins.Contains(dependency)))
                 {
-                    Logger.Error(
+                    _logger.LogError(
                         "The plugin {plugin} has defined the plugin {dependency} as a hard dependency but its not present! {plugin} will not loaded.",
                         plugin,
                         dependency,
@@ -239,7 +320,7 @@ namespace Impostor.Server.Plugins
             return plugins;
         }
 
-        private static void RecursiveOrder(
+        private void RecursiveOrder(
             string plugin,
             IReadOnlyDictionary<string, List<string>> dependencyGraph,
             ICollection<string> processed,

src/Impostor.Server/Plugins/Proxies/ServiceProxyCollection.cs

@@ -0,0 +1,14 @@
+using System.Collections.Generic;
+
+namespace Impostor.Server.Plugins.Proxies
+{
+    public class ServiceProxyCollection
+    {
+        public ServiceProxyCollection(IReadOnlyList<ServiceRegistration> serviceTypes)
+        {
+            ServiceTypes = serviceTypes;
+        }
+
+        public IReadOnlyList<ServiceRegistration> ServiceTypes { get; }
+    }
+}

src/Impostor.Server/Plugins/Proxies/ServiceRegistration.cs

@@ -0,0 +1,7 @@
+using System;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Impostor.Server.Plugins.Proxies
+{
+    public record ServiceRegistration(Type Type, ServiceLifetime Lifetime);
+}

src/Impostor.Server/Program.cs

@@ -1,12 +1,15 @@
 using System;
 using System.IO;
 using System.Linq;
+using System.Threading.Tasks;
+using Impostor.Api.Events;
 using Impostor.Api.Events.Managers;
 using Impostor.Api.Games;
 using Impostor.Api.Games.Managers;
 using Impostor.Api.Net.Custom;
 using Impostor.Api.Net.Manager;
 using Impostor.Api.Net.Messages;
+using Impostor.Api.Plugins;
 using Impostor.Api.Utils;
 using Impostor.Hazel.Extensions;
 using Impostor.Server.Config;
@@ -18,11 +21,13 @@ using Impostor.Server.Net.Manager;
 using Impostor.Server.Net.Messages;
 using Impostor.Server.Net.Redirector;
 using Impostor.Server.Plugins;
+using Impostor.Server.Plugins.Proxies;
 using Impostor.Server.Recorder;
 using Impostor.Server.Utils;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.ObjectPool;
 using Serilog;
 using Serilog.Events;
@@ -31,38 +36,16 @@ namespace Impostor.Server
 {
     internal static class Program
     {
-        private static int Main(string[] args)
+        private static async Task<int> Main(string[] args)
         {
-#if DEBUG
-            var logLevel = LogEventLevel.Debug;
-#else
-            var logLevel = LogEventLevel.Information;
-#endif
-
-            if (args.Contains("--verbose"))
-            {
-                logLevel = LogEventLevel.Verbose;
-            }
-            else if (args.Contains("--errors-only"))
-            {
-                logLevel = LogEventLevel.Error;
-            }
-
             Log.Logger = new LoggerConfiguration()
-                .MinimumLevel.Is(logLevel)
-#if DEBUG
-                .MinimumLevel.Override("Microsoft", LogEventLevel.Debug)
-#else
-                .MinimumLevel.Override("Microsoft", LogEventLevel.Information)
-#endif
-                .Enrich.FromLogContext()
                 .WriteTo.Console()
-                .CreateLogger();
+                .CreateBootstrapLogger();
 
             try
             {
                 Log.Information("Starting Impostor v{0}", DotnetUtils.Version);
-                CreateHostBuilder(args).Build().Run();
+                await CreateHostBuilder(args).RunConsoleAsync();
                 return 0;
             }
             catch (Exception ex)
@@ -76,25 +59,8 @@ namespace Impostor.Server
             }
         }
 
-        private static IConfiguration CreateConfiguration(string[] args)
-        {
-            var configurationBuilder = new ConfigurationBuilder();
-
-            configurationBuilder.SetBasePath(Directory.GetCurrentDirectory());
-            configurationBuilder.AddJsonFile("config.json", true);
-            configurationBuilder.AddJsonFile("config.Development.json", true);
-            configurationBuilder.AddEnvironmentVariables(prefix: "IMPOSTOR_");
-            configurationBuilder.AddCommandLine(args);
-
-            return configurationBuilder.Build();
-        }
-
         private static IHostBuilder CreateHostBuilder(string[] args)
         {
-            var configuration = CreateConfiguration(args);
-            var pluginConfig = configuration.GetSection("PluginLoader")
-                .Get<PluginConfig>() ?? new PluginConfig();
-
             return Host.CreateDefaultBuilder(args)
                 .UseContentRoot(Directory.GetCurrentDirectory())
 #if DEBUG
@@ -104,7 +70,10 @@ namespace Impostor.Server
 #endif
                 .ConfigureAppConfiguration(builder =>
                 {
-                    builder.AddConfiguration(configuration);
+                    builder.AddJsonFile("config.json", true);
+                    builder.AddJsonFile("config.Development.json", true);
+                    builder.AddEnvironmentVariables(prefix: "IMPOSTOR_");
+                    builder.AddCommandLine(args);
                 })
                 .ConfigureServices((host, services) =>
                 {
@@ -134,6 +103,7 @@ namespace Impostor.Server
                     services.Configure<AnnouncementsServerConfig>(host.Configuration.GetSection(AnnouncementsServerConfig.Section));
                     services.Configure<AuthServerConfig>(host.Configuration.GetSection(AuthServerConfig.Section));
                     services.Configure<ServerRedirectorConfig>(host.Configuration.GetSection(ServerRedirectorConfig.Section));
+                    services.Configure<PluginLoaderConfig>(host.Configuration.GetSection(PluginLoaderConfig.Section));
 
                     if (redirector.Enabled)
                     {
@@ -228,10 +198,53 @@ namespace Impostor.Server
                     {
                         services.AddHostedService<AuthService>();
                     }
+
+                    services.AddSingleton<PluginManager>();
+                    services.AddSingleton<IPluginManager>(p => p.GetRequiredService<PluginManager>());
+                    services.AddHostedService(p => p.GetRequiredService<PluginManager>());
                 })
-                .UseSerilog()
-                .UseConsoleLifetime()
-                .UsePluginLoader(pluginConfig);
+                .UseSerilog((context, loggerConfiguration) =>
+                {
+#if DEBUG
+                    var logLevel = LogEventLevel.Debug;
+#else
+                    var logLevel = LogEventLevel.Information;
+#endif
+
+                    if (args.Contains("--verbose"))
+                    {
+                        logLevel = LogEventLevel.Verbose;
+                    }
+                    else if (args.Contains("--errors-only"))
+                    {
+                        logLevel = LogEventLevel.Error;
+                    }
+
+                    loggerConfiguration
+                        .MinimumLevel.Is(logLevel)
+#if DEBUG
+                        .MinimumLevel.Override("Microsoft", LogEventLevel.Debug)
+#else
+                        .MinimumLevel.Override("Microsoft", LogEventLevel.Information)
+#endif
+                        .Enrich.FromLogContext()
+                        .WriteTo.Console()
+                        .ReadFrom.Configuration(context.Configuration);
+                })
+                .ConfigureServices(services =>
+                {
+                    services.AddTransient(serviceProvider => serviceProvider.GetRequiredService<PluginManager>().CurrentHost?.Services.GetServices<IEventListener>() ?? Enumerable.Empty<IEventListener>());
+
+                    var apiAssembly = typeof(IPlugin).Assembly;
+                    var serilogAssembly = typeof(Serilog.ILogger).Assembly;
+
+                    services.AddSingleton(new ServiceProxyCollection(
+                        services
+                            .Where(t => t.ServiceType.Assembly == apiAssembly || t.ServiceType.Assembly == serilogAssembly || t.ServiceType == typeof(PluginManager) || t.ServiceType == typeof(ILoggerFactory))
+                            .Select(t => new ServiceRegistration(t.ServiceType, t.Lifetime))
+                            .Distinct()
+                            .ToArray()));
+                });
         }
     }
 }