using Baya.Application.Contracts.Common;
using Baya.Infrastructure.CrossCutting.Seams;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;

namespace Baya.Infrastructure.CrossCutting.ServiceConfiguration;

public static class ServiceCollectionExtension
{
    /// <summary>
    /// Registers the cross-cutting seams (time, PII encryption, cache, object storage) with their
    /// in-memory/local mock implementations. Swapping in a real provider later is a registration change
    /// here — callers depend only on the Application contracts. (The real in-app
    /// <c>INotificationDispatcher</c> needs the database, so it is registered in the Persistence layer.)
    /// </summary>
    public static IServiceCollection AddCrossCuttingSeams(this IServiceCollection services, IConfiguration configuration)
    {
        services.Configure<SeamOptions>(configuration.GetSection(SeamOptions.SectionName));

        services.AddMemoryCache();

        services.AddSingleton<IDateTimeProvider, SystemDateTimeProvider>();
        services.AddSingleton<IFieldEncryptor, SymmetricFieldEncryptor>();
        services.AddSingleton<ICacheService, MemoryCacheService>();
        services.AddSingleton<IObjectStorage, LocalDiskObjectStorage>();

        return services;
    }
}