using ElectronicsShopContracts.BindingModels;
using ElectronicsShopContracts.SearchModels;
using ElectronicsShopContracts.StorageContracts;
using ElectronicsShopContracts.ViewModels;
using ElectronicsShopDataBaseImplement.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ElectronicsShopDataBaseImplement.Implements
{
	public class MessageInfoStorage : IMessageInfoStorage
	{

		public MessageInfoViewModel? GetElement(MessageInfoSearchModel model)
		{
			using var context = new Database();
			if (model.MessageID != null)
			{
				return context.Messages.FirstOrDefault(x => x.MessageID == model.MessageID)?.GetViewModel;
			}
			return null;
		}

		public List<MessageInfoViewModel> GetFilteredList(MessageInfoSearchModel model)
		{
			using var context = new Database();
			return context.Messages
				.Where(x => x.MessageID == model.MessageID).Select(x => x.GetViewModel).ToList();
		}

		public List<MessageInfoViewModel> GetFullList()
		{
			using var context = new Database();
			return context.Messages.Select(x => x.GetViewModel).ToList();
		}

		public MessageInfoViewModel? Insert(MessageInfoBindingModel model)
		{
			using var context = new Database();
			var newMessage = MessageInfo.Create(model);
			if (newMessage == null || context.Messages.Any(x => x.MessageID.Equals(model.MessageID)))
			{
				return null;
			}
			context.Messages.Add(newMessage);
			context.SaveChanges();
			return newMessage.GetViewModel;
		}
	}
}