#if NET48
using System.Data.Entity;
using Microsoft.Extensions.DependencyInjection;
#else
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.DependencyInjection;
#endif
using ECMJobRunner.Domain.Interfaces;
using ECMJobRunner.Infrastructure.Data;
using ECMJobRunner.Infrastructure.Repositories;

namespace ECMJobRunner.Infrastructure
{
    /// <summary>
    /// Dependency injection extension methods for Infrastructure layer
    /// </summary>
    public static class DependencyExtension
    {
        /// <summary>
        /// Add Infrastructure services to dependency injection container
        /// </summary>
        /// <param name="services">Service collection</param>
        /// <param name="connectionString">Database connection string</param>
        /// <returns>Service collection for chaining</returns>
        public static IServiceCollection AddInfrastructure(this IServiceCollection services, string connectionString)
        {
#if NET48
            // Register DbContext as scoped for EF6 - same pattern as EF Core
            // Each scope (request) gets its own DbContext instance
            services.AddScoped(provider => new JobRunnerDbContext(connectionString));
#else
            // Register DbContext as scoped for EF Core
            services.AddDbContext<JobRunnerDbContext>(options =>
                options.UseSqlServer(connectionString));
#endif

            // Register AutoMapper
            services.AddAutoMapper(typeof(DependencyExtension).Assembly);

            // Register repositories as scoped (same lifetime as DbContext)
            services.AddScoped(typeof(IRepository<>), typeof(Repository<>));
            services.AddScoped<ICfgProfileRepository, CfgProfileRepository>();
            services.AddScoped<IProfileSqlJobRepository, ProfileSqlJobRepository>();
            services.AddScoped<IProfileHistoryRepository, ProfileHistoryRepository>();

            return services;
        }
    }
}