Lesson 1 with .net .gitignore and clean repo

src/NetPulse.Core/EngineLoop.cs

@@ -0,0 +1,45 @@
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+
+namespace NetPulse.Core;
+
+public class EngineLoop : BackgroundService
+{
+    private readonly ILogger<EngineLoop> _logger;
+    private readonly TimeSpan _interval = TimeSpan.FromSeconds(2);
+
+    public EngineLoop(ILogger<EngineLoop> logger)
+    {
+        _logger = logger;
+    }
+
+    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+    {
+        _logger.LogInformation("EngineLoop started.");
+
+        while(!stoppingToken.IsCancellationRequested)
+        {
+            try
+            {
+                // ===== Core Heartbeat =====
+                _logger.LogInformation("Hearbeat at {time}", DateTime.UtcNow);
+
+                // Future: metrics Collection
+                // Future: dispatch events
+                // Future: run modules
+
+                await Task.Delay(_interval, stoppingToken);
+            }
+            catch (TaskCanceledException)
+            {
+                break;
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Unexpected Engine error.");
+            }
+        }
+
+        _logger.LogInformation("EngineLoop Stopping");
+    }
+}

src/NetPulse.Core/NetPulse.Core.csproj

@@ -0,0 +1,13 @@
+<Project Sdk="Microsoft.NET.Sdk.Worker">
+
+  <PropertyGroup>
+    <TargetFramework>net9.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <UserSecretsId>dotnet-NetPulse.Core-d06ed89e-b585-4482-b09d-8e11e4e6f936</UserSecretsId>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Hosting" Version="9.0.9" />
+  </ItemGroup>
+</Project>

src/NetPulse.Core/Program.cs

@@ -0,0 +1,33 @@
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Configuration;
+
+namespace NetPulse.Core;
+
+public class Program
+{
+    public static async Task Main(string[] args)
+    {
+        using IHost host = Host.CreateDefaultBuilder(args)
+            .ConfigureAppConfiguration(config =>
+            {
+                config.AddJsonFile("appsettings.json", optional: true, reloadOnChange: true);
+            })
+            .ConfigureLogging(logging =>
+            {
+                logging.ClearProviders();
+                logging.AddSimpleConsole(options =>
+                {
+                    options.TimestampFormat = "HH:MM:SS";
+                    options.IncludeScopes = true;
+                });
+
+            })
+            .ConfigureServices((context, services) =>
+            {
+                services.AddHostedService<EngineLoop>();
+            })
+            .Build();
+        await host.RunAsync();
+    }
+}

src/NetPulse.Core/Properties/launchSettings.json

@@ -0,0 +1,12 @@
+{
+  "$schema": "https://json.schemastore.org/launchsettings.json",
+  "profiles": {
+    "NetPulse.Core": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "environmentVariables": {
+        "DOTNET_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

src/NetPulse.Core/appsettings.Development.json

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

src/NetPulse.Core/appsettings.json

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