using System.Reflection;
using GB5Shared.Hosting;
using GB5Shared.Storage;
using GB5Shared.Vault;
using Microsoft.Extensions.Hosting;

namespace DMSSL;

public class DMSModule : IModule
{
    public void Register(IServiceCollection services, IConfiguration configuration)
    {
        services.AddGB5Storage(configuration.GetSection("StorageConfiguration"));
        services.Configure<GB5Shared.Attachment.AttachmentPathSettings>(
            configuration.GetSection(GB5Shared.Attachment.AttachmentPathSettings.Section));

        // IAttachmentUploadService/ITemplateResolutionEngine/IAttachmentPathResolutionService now
        // live in GB5Shared.Attachment — not covered by the FrameworkBLL/FrameworkDAL scan below.
        services.AddScoped<GB5Shared.Attachment.ITemplateResolutionEngine, GB5Shared.Attachment.TemplateResolutionEngine>();
        services.AddScoped<GB5Shared.Attachment.IAttachmentUploadService, GB5Shared.Attachment.AttachmentUploadService>();
        services.AddScoped<GB5Shared.Attachment.IAttachmentPathResolutionService, GB5Shared.Attachment.AttachmentPathResolutionService>();

        services.AddGB5Vault(configuration);

        services.AddScoped<GB5Shared.RuleEngine.IConditionEvaluator,
                            GB5Shared.RuleEngine.JsonPathConditionEvaluator>();

        services.AddHttpClient("alfresco", client =>
        {
            client.Timeout = TimeSpan.FromMinutes(10);
        });

        var dmsBLLAssembly       = Assembly.Load("DMSBLL");
        var dmsDALAssembly       = Assembly.Load("DMSDAL");

        services.Scan(scan => scan
            .FromAssemblies(dmsBLLAssembly, dmsDALAssembly)
            // Canonical filter (mirrors GB5Framework/FrameworkSL/Program.cs's scan):
            //  - IHostedService: hosted services are registered separately with their own lifetime.
            //  - Exception: Exception implements ISerializable/_Exception, so AsImplementedInterfaces()
            //    would otherwise register exception types (e.g. QualifierActivationException) as
            //    services, and DI then fails trying to activate them via their (string) constructor.
            //  - records (detected via the compiler-generated <Clone>$ method): a record implicitly
            //    implements IEquatable<T>, so without this, DTOs/records get registered as services
            //    and the container fails trying to activate them via their data constructor.
            //  - ReportOrchestration: those services require IReportEndpointRegistry, which is only
            //    wired up via FrameworkSL's AddReportOrchestration() extension (not referenced here).
            //    A blanket scan would register QueryOrchestrator without its registry dependency and
            //    fail DI validation at startup.
            .AddClasses(c => c.Where(t => !t.IsAbstract && !t.IsInterface
                && !typeof(IHostedService).IsAssignableFrom(t)
                && !typeof(Exception).IsAssignableFrom(t)
                && t.GetMethod("<Clone>$") == null
                && (t.Namespace == null || !t.Namespace.Contains(".ReportOrchestration"))))
            .AsImplementedInterfaces()
            .WithScopedLifetime());
    }

    public void MapEndpoints(WebApplication app) { }
}