using System;
using System.Collections.Generic;
using System.Linq;
using SmartStore.Core.Caching;
using SmartStore.Core.Plugins;
using SmartStore.Services.Localization;
using SmartStore.Services;

namespace SmartStore.Services.Tests
{

	public class MockProviderManager : IProviderManager
	{
		private IDictionary<ProviderMetadata, IProvider> _providers = new Dictionary<ProviderMetadata, IProvider>();

		public void RegisterProvider(string systemName, IProvider provider)
		{
			var metadata = new ProviderMetadata
			{
				SystemName = systemName
			};
			_providers[metadata] = provider;
		}

		public Provider<TProvider> GetProvider<TProvider>(string systemName, int storeId = 0) where TProvider : IProvider
		{
			return _providers
				.Where(x => x.Key.SystemName.IsCaseInsensitiveEqual(systemName))
				.Select(x => new Provider<TProvider>(new Lazy<TProvider, ProviderMetadata>(() => (TProvider)x.Value, x.Key)))
				.FirstOrDefault();
		}

		public Provider<IProvider> GetProvider(string systemName, int storeId = 0)
		{
			return _providers
				.Where(x => x.Key.SystemName.IsCaseInsensitiveEqual(systemName))
				.Select(x => new Provider<IProvider>(new Lazy<IProvider, ProviderMetadata>(() => (IProvider)x.Value, x.Key)))
				.FirstOrDefault();
		}

		public IEnumerable<Provider<TProvider>> GetAllProviders<TProvider>(int storeId = 0) where TProvider : IProvider
		{
			return _providers
				.Where(x => typeof(TProvider).IsAssignableFrom(x.Value.GetType()))
				.Select(x => new Provider<TProvider>(new Lazy<TProvider, ProviderMetadata>(() => (TProvider)x.Value, x.Key)));
		}

		public IEnumerable<Provider<IProvider>> GetAllProviders(int storeId = 0)
		{
			return _providers.Select(x => new Provider<IProvider>(new Lazy<IProvider, ProviderMetadata>(() => (IProvider)x.Value, x.Key)));
		}

		public void SetDisplayOrder(ProviderMetadata metadata, int displayOrder, int storeId = 0)
		{
		}

		protected virtual IEnumerable<Provider<TProvider>> SortProviders<TProvider>(IEnumerable<Provider<TProvider>> providers, int storeId = 0) where TProvider : IProvider
		{
			return providers.OrderBy(x => x.Metadata.DisplayOrder);
		}

	}

}
