using System.Reflection;
using EnablementBLL.ShowResolver;
using EnablementBLL.ShowRule;
using EnablementDAL.CustomCode.ShowRequestLog;
using EnablementDAL.CustomCode.ShowResolver;
using EnablementDAL.Implementations;
using GB5Shared.DaprCache;
using GB5Shared.EventLogPublish;
using GB5Shared.GenerateAutoNumber;
using GB5Shared.Hosting;
using GB5Shared.PickListGenerator;
using TMSBLL.Quiz;
using TMSBLL.TrainingProgrammeSessionTopic;
using TMSDAL.CustomCode.Quiz;
using TMSDAL.CustomCode.TrainingProgrammeSessionTopic;

namespace EnablementSL;

public class EnablementModule : IModule
{
    public void Register(IServiceCollection services, IConfiguration configuration)
    {
        services.Configure<HostOptions>(options =>
        {
            options.BackgroundServiceExceptionBehavior = BackgroundServiceExceptionBehavior.Ignore;
        });

        services.AddHttpClient();
        services.AddScoped<CodeGeneration>();
        services.AddScoped<IPickListExecutor, PickListExecutor>();
        services.AddScoped<EventLogPublish>();

        services.AddScoped<IShowResolverDAL, ShowResolverDAL>();
        services.AddScoped<IShowRequestLogDAL, ShowRequestLogDAL>();
        services.AddScoped<IShowRuleBLL, ShowRuleBLL>();
        services.AddScoped<IShowResolverBLL, ShowResolverBLL>();

        // Part B, Slice 5: ShowContentLinkBLL (LinkType=7, Training) calls into
        // TMSBLL.TrainingProgrammeSessionTopic.ITrainingProgrammeSessionTopicBLL. TMS is not one
        // of this host's own modules (its SL project isn't referenced by EngagementHost.csproj —
        // TMS normally runs on gb5-hrfinance), so TMSBLL/TMSDAL's own types are never scanned or
        // registered here despite being compiled in via EnablementBLL's ProjectReference chain.
        // Register just the two types actually needed, plus KeyInvalidate (a GB5Shared type
        // TrainingProgrammeSessionTopicBLL's constructor requires, also never registered by any
        // single host explicitly per its own doc comment — every other GB5Shared/framework type
        // this BLL needs, AutoNumber/IValidation, is already registered above/at the host level).
        services.AddScoped<KeyInvalidate>();
        services.AddScoped<ITrainingProgrammeSessionTopicDAL, TrainingProgrammeSessionTopicDAL>();
        services.AddScoped<ITrainingProgrammeSessionTopicBLL, TrainingProgrammeSessionTopicBLL>();

        // Same cross-host gap as above, for ShowContentLinkBLL's LinkType=8 (Quiz) support:
        // TMSBLL.Quiz.IQuizBLL was injected without ever being registered here, which didn't crash
        // this host (ModuleLoader's DI pre-flight check catches it) but silently excluded every
        // ShowContentLink endpoint from routing (404 on all of them) since the whole
        // ShowContentLinkBLL graph failed to resolve. QuizDAL's own dependencies (IQueryExecutor,
        // IValidation) are already registered at the host level, so no extra plumbing needed here.
        services.AddScoped<IQuizDAL, QuizDAL>();
        services.AddScoped<IQuizBLL, QuizBLL>();

        var enablementBLLAssembly = Assembly.Load("EnablementBLL");
        var enablementDALAssembly = Assembly.Load("EnablementDAL");
        services.Scan(scan => scan
            .FromAssemblies(enablementBLLAssembly, enablementDALAssembly)
            .AddClasses(c => c.Where(t => !t.IsAbstract && !t.IsInterface
                && (t.Namespace == null || !t.Namespace.Contains(".DTO"))))
            .AsImplementedInterfaces()
            .WithScopedLifetime());
    }

    public void MapEndpoints(WebApplication app) { }
}