creates simple healthchecks

2025-08-25 23:46:04 +02:00
commit b81eb5b9f5
21 changed files with 2835 additions and 0 deletions
--- a/HealthCheckServiceCollectionExtensions.cs
+++ b/HealthCheckServiceCollectionExtensions.cs
@@ -0,0 +1,85 @@
+using MCVIngenieros.Healthchecks.__;
+using MCVIngenieros.Healthchecks.__.__Controllers;
+using MCVIngenieros.Healthchecks.Abstracts;
+using MCVIngenieros.Healthchecks.Options;
+using Microsoft.Extensions.DependencyInjection.Extensions;
+using Microsoft.Extensions.Options;
+using System.Reflection;
+
+namespace MCVIngenieros.Healthchecks;
+
+// Extension methods for IServiceCollection
+public static class HealthCheckServiceCollectionExtensions
+{
+    private static IServiceCollection AddHealthChecksSupport(this IServiceCollection services, HealthCheckContainerOptions options)
+    {
+        ArgumentNullException.ThrowIfNull(services, nameof(services));
+        services.AddSingleton<IHealthCheckContainer, HealthCheckContainer>();
+        services.AddSingleton(Microsoft.Extensions.Options.Options.Create(options));
+        services.AddCheck<ImAliveHealthcheck>();
+        services.AddControllers().AddApplicationPart(typeof(HealthCheckController).Assembly);
+        return services;
+    }
+
+    public static IServiceCollection AddHealthChecksSupport(this IServiceCollection services)
+    {
+        ArgumentNullException.ThrowIfNull(services, nameof(services));
+        var options = new HealthCheckContainerOptions();
+
+        var scope = services.BuildServiceProvider().CreateScope();
+        var config = scope.ServiceProvider.GetRequiredService<IConfiguration>();
+        scope.Dispose();
+        services.Configure<HealthCheckOptions>(nameof(HealthCheckOptions), config.GetSection(nameof(HealthChecksConfigs)));
+        scope = services.BuildServiceProvider().CreateScope();
+        var hcopts = scope.ServiceProvider
+            .GetRequiredService<IOptionsSnapshot<HealthCheckOptions>>().Get(nameof(HealthCheckOptions));
+        scope.Dispose();
+
+        if (!string.IsNullOrWhiteSpace(hcopts.CacheDuration) && TimeSpan.TryParse(hcopts.CacheDuration, out TimeSpan cacheDuration))
+        {
+            options.CacheDuration = cacheDuration;
+        }
+
+        if (!string.IsNullOrWhiteSpace(hcopts.Timeout) && TimeSpan.TryParse(hcopts.Timeout, out TimeSpan timeout))
+        {
+            options.Timeout = timeout;
+        }
+
+        if (hcopts.AssembliesToScan != null && hcopts.AssembliesToScan.Length > 0)
+        {
+            options.AssembliesToScan = hcopts.AssembliesToScan.Select(Assembly.Load);
+        }
+
+        return services.AddHealthChecksSupport(options);
+    }
+
+    public static IServiceCollection AddHealthChecksSupport(this IServiceCollection services, Action<HealthCheckContainerOptions>? configure = null)
+    {
+        ArgumentNullException.ThrowIfNull(services, nameof(services));
+        ArgumentNullException.ThrowIfNull(configure, nameof(configure));
+        var options = new HealthCheckContainerOptions();
+        configure?.Invoke(options);
+        return services.AddHealthChecksSupport(options);
+    }
+
+    public static IServiceCollection AddHealthCheck<T>(this IServiceCollection services)
+        where T : class, IHealthCheck
+        => services.AddCheck<T>();
+
+    public static IServiceCollection AddCheck<T>(this IServiceCollection services)
+        where T : class, IHealthCheck
+    {
+        services.TryAddTransient<IHealthCheck, T>();
+        return services;
+    }
+
+    public static IServiceCollection DiscoverHealthChecks(this IServiceCollection services)
+    {
+        // This will trigger the discovery when the container is built
+        var provider = services.BuildServiceProvider();
+        var container = provider.GetRequiredService<IHealthCheckContainer>();
+        container.DiscoverHealthChecks();
+        return services;
+    }
+}
+