PIbd-22_Smirnov_A.A._SecuritySystem/SecuritySystem/SecuritySystemDatabaseImplement/Implements/MessageInfoStorage.cs

using SecuritySystemContracts.BindingModels;
using SecuritySystemContracts.SearchModels;
using SecuritySystemContracts.StoragesContracts;
using SecuritySystemContracts.ViewModels;
using SecuritySystemDatabaseImplement.Models;
using Microsoft.EntityFrameworkCore;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SecuritySystemDatabaseImplement.Implements
{
	public class MessageInfoStorage : IMessageInfoStorage
	{
		public MessageInfoViewModel? GetElement(MessageInfoSearchModel model)
		{
			if (string.IsNullOrEmpty(model.MessageId))
			{
				return null;
			}

			using var context = new SecuritySystemDatabase();

			return context.Messages
				.FirstOrDefault(x => (x.MessageId == model.MessageId))
				?.GetViewModel;
		}

		public List<MessageInfoViewModel> GetFilteredList(MessageInfoSearchModel model)
		{
			using var context = new SecuritySystemDatabase();

			return context.Messages
				.Where(x => x.ClientId.HasValue && x.ClientId == model.ClientId)
				.Select(x => x.GetViewModel)
				.ToList();
		}

		public List<MessageInfoViewModel> GetFullList()
		{
			using var context = new SecuritySystemDatabase();

			return context.Messages
				.Select(x => x.GetViewModel)
				.ToList();
		}

		public MessageInfoViewModel? Insert(MessageInfoBindingModel model)
		{
			using var context = new SecuritySystemDatabase();

			var newMessage = MessageInfo.Create(model);

			if (newMessage == null)
			{
				return null;
			}

			context.Messages.Add(newMessage);
			context.SaveChanges();

			return newMessage.GetViewModel;
		}
	}
}