Restructure solution layout by module

src/Concelier/__Libraries/StellaOps.Concelier.Merge/MergeServiceCollectionExtensions.cs

@@ -0,0 +1,43 @@
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.DependencyInjection.Extensions;
+using Microsoft.Extensions.Logging;
+using StellaOps.Concelier.Core;
+using StellaOps.Concelier.Merge.Jobs;
+using StellaOps.Concelier.Merge.Options;
+using StellaOps.Concelier.Merge.Services;
+
+namespace StellaOps.Concelier.Merge;
+
+public static class MergeServiceCollectionExtensions
+{
+    public static IServiceCollection AddMergeModule(this IServiceCollection services, IConfiguration configuration)
+    {
+        ArgumentNullException.ThrowIfNull(services);
+        ArgumentNullException.ThrowIfNull(configuration);
+
+        services.TryAddSingleton<CanonicalHashCalculator>();
+        services.TryAddSingleton<CanonicalMerger>();
+        services.TryAddSingleton<AliasGraphResolver>();
+        services.TryAddSingleton<AffectedPackagePrecedenceResolver>(sp =>
+        {
+            var options = configuration.GetSection("concelier:merge:precedence").Get<AdvisoryPrecedenceOptions>();
+            return options is null ? new AffectedPackagePrecedenceResolver() : new AffectedPackagePrecedenceResolver(options);
+        });
+
+        services.TryAddSingleton<AdvisoryPrecedenceMerger>(sp =>
+        {
+            var resolver = sp.GetRequiredService<AffectedPackagePrecedenceResolver>();
+            var options = configuration.GetSection("concelier:merge:precedence").Get<AdvisoryPrecedenceOptions>();
+            var timeProvider = sp.GetRequiredService<TimeProvider>();
+            var logger = sp.GetRequiredService<ILogger<AdvisoryPrecedenceMerger>>();
+            return new AdvisoryPrecedenceMerger(resolver, options, timeProvider, logger);
+        });
+
+        services.TryAddSingleton<MergeEventWriter>();
+        services.TryAddSingleton<AdvisoryMergeService>();
+        services.AddTransient<MergeReconcileJob>();
+
+        return services;
+    }
+}