using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace GarmentFactoryContracts.DependencyInjection
{
	/// <summary>
	/// Менеджер для работы с зависимостями
	/// </summary>
	public class DependencyManager
	{
		private readonly IDependencyContainer _dependencyManager;
		private static DependencyManager? _manager;
		private static readonly object _locjObject = new();
		private DependencyManager()
		{
			_dependencyManager = new UnityDependencyContainer();
		}
		public static DependencyManager Instance
		{
			get
			{
				if (_manager == null) 
				{ 
					lock (_locjObject) { _manager = new DependencyManager(); } 
				}
				return _manager;
			}
		}
		/// <summary>
		/// Иницализация библиотек, в которых идут установки зависомстей
		/// </summary>
		public static void InitDependency()
		{
			var ext = ServiceProviderLoader.GetImplementationExtensions();
			if (ext == null)
			{
				throw new ArgumentNullException("Отсутствуют компоненты для загрузки зависимостей по модулям");
			}
			// регистрируем зависимости
			ext.RegisterServices();
		}

		/// <summary>
		/// Регистрация логгера
		/// </summary>
		/// <param name="configure"></param>
		public void AddLogging(Action<ILoggingBuilder> configure) => _dependencyManager.AddLogging(configure);


		/// <summary>
		/// Добавление зависимости
		/// </summary>
		/// <typeparam name="T"></typeparam>
		/// <typeparam name="U"></typeparam>
		public void RegisterType<T, U>(bool isSingle = false) where U : class, T where T : class => _dependencyManager.RegisterType<T, U>(isSingle);

		/// <summary>
		/// Добавление зависимости
		/// </summary>
		/// <typeparam name="T"></typeparam>
		/// <typeparam name="U"></typeparam>
		public void RegisterType<T>(bool isSingle = false) where T : class => _dependencyManager.RegisterType<T>(isSingle);

		/// <summary>
		/// Получение класса со всеми зависмостями
		/// </summary>
		/// <typeparam name="T"></typeparam>
		/// <returns></returns>
		public T Resolve<T>() => _dependencyManager.Resolve<T>();
	}
}