Switch to Serilog, organize code a bit

GodReplacementProduct/GodReplacementProduct.csproj

@@ -14,6 +14,10 @@
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="7.0.0" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="7.0.0" />
     <PackageReference Include="Microsoft.Extensions.Hosting" Version="7.0.1" />
+    <PackageReference Include="Serilog" Version="3.0.1" />
+    <PackageReference Include="Serilog.Extensions.Hosting" Version="7.0.0" />
+    <PackageReference Include="Serilog.Settings.Configuration" Version="7.0.1" />
+    <PackageReference Include="Serilog.Sinks.Console" Version="4.1.0" />
   </ItemGroup>
 
 </Project>

GodReplacementProduct/Program.cs

@@ -4,29 +4,58 @@ using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
 using Microsoft.Extensions.Logging;
+using Serilog;
+using Serilog.Events;
 
 namespace GodReplacementProduct;
 
 public class Program
 {
-    static void Main(string[] args) {
-        var builder = Host.CreateApplicationBuilder(args);
+    public static int Main(string[] args)
+    {
+        Log.Logger = new LoggerConfiguration()
+            .MinimumLevel.Debug()
+            .MinimumLevel.Override("Microsoft", LogEventLevel.Information)
+            .Enrich.FromLogContext()
+            .WriteTo.Console()
+            .CreateLogger();
 
-        builder.Services.AddHostedService<GodReplacementBot>();
-
-        var config = new DiscordSocketConfig()
+        try
         {
-        };
-        builder.Services.AddSingleton(config);
-        builder.Services.AddSingleton<DiscordSocketClient>();
-
-        var host = builder.Build();
-        host.Run();
+            Log.Information("Starting host");
+            BuildHost(args).Run();
+            return 0;
+        }
+        catch (Exception ex)
+        {
+            Log.Fatal(ex, "Host terminated unexpectedly");
+            return 1;
+        }
+        finally
+        {
+            Log.CloseAndFlush();
+        }
     }
+
+    public static IHost BuildHost(string[] args) => new HostBuilder()
+            .ConfigureAppConfiguration((context) => context
+                .AddUserSecrets<Program>()
+                .Build()
+            )
+            .ConfigureServices(services => services
+                .AddSingleton<DiscordSocketClient>()
+                .AddHostedService<GodReplacementBot>()
+                )
+            .UseSerilog((context, services, loggerConfiguration) => loggerConfiguration
+                    .ReadFrom.Configuration(context.Configuration)
+                    .Enrich.FromLogContext()
+                    .WriteTo.Console())
+            .Build();
 }
 
-public sealed class GodReplacementBot : IHostedService {
-    private readonly ILogger _logger;
+public sealed class GodReplacementBot : IHostedService
+{
+    private readonly ILogger<GodReplacementBot> _logger;
     private readonly IConfiguration _config;
     private readonly DiscordSocketClient _client;
 
@@ -34,28 +63,42 @@ public sealed class GodReplacementBot : IHostedService {
         ILogger<GodReplacementBot> logger,
         IConfiguration config,
         DiscordSocketClient client
-    ) {
-        _logger = logger;
+    )
+    {
         _config = config;
         _client = client;
+        _logger = logger;
     }
 
-    public async Task StartAsync(CancellationToken cancellationToken) {
-        _client.Log += Log;
+    public async Task StartAsync(CancellationToken cancellationToken)
+    {
         var token = _config.GetValue<string>("GodReplacementProject:DiscordToken");
+        _client.Log += LogAsync;
 
         await _client.LoginAsync(TokenType.Bot, token);
         await _client.StartAsync();
-
-        await Task.Delay(Timeout.Infinite);
     }
 
-    public async Task StopAsync(CancellationToken cancellationToken) {
+    public async Task StopAsync(CancellationToken cancellationToken)
+    {
         await _client.StopAsync();
     }
 
-    private Task Log(LogMessage msg) {
-        Console.WriteLine(msg.ToString());
+    private Task LogAsync(LogMessage message) {
+        var severity = message.Severity switch
+        {
+            LogSeverity.Critical => LogLevel.Critical,
+            LogSeverity.Error => LogLevel.Error,
+            LogSeverity.Warning => LogLevel.Warning,
+            LogSeverity.Info => LogLevel.Information,
+            LogSeverity.Verbose => LogLevel.Debug,
+            LogSeverity.Debug => LogLevel.Trace,
+            _ => LogLevel.Information,
+        };
+
+        _logger.Log(severity, message.Exception, "[{Source}] {Message}", message.Source, message.Message);
+
         return Task.CompletedTask;
     }
+
 }