PIbd-21_Kurs_Work_Hotel/Hotel/HotelDataBaseImplement/Implements/OrganiserStorage.cs

using HotelContracts.BindingModels;
using HotelContracts.SearchModels;
using HotelContracts.StoragesContracts;
using HotelContracts.ViewModels;
using HotelDataBaseImplement.Models;
using Microsoft.EntityFrameworkCore;

namespace HotelDataBaseImplement.Implements
{
	public class OrganiserStorage : IOrganiserStorage
	{
		public List<OrganiserViewModel> GetFullList()
		{
			using var context = new HotelDataBase();

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

		public List<OrganiserViewModel> GetFilteredList(OrganiserSearchModel model)
		{
			if (string.IsNullOrEmpty(model.OrganiserFIO))
			{
				return new();
			}

			using var context = new HotelDataBase();

			return context.Organisers
				.Include(x => x.MealPlans)
				.Include(x => x.Participants)
				.Include(x => x.Conferences)
				.Where(x => x.OrganiserLogin.Contains(model.OrganiserLogin) && x.OrganiserPassword == model.OrganiserPassword)
				.Select(x => x.GetViewModel)
				.ToList();
		}

		public OrganiserViewModel? GetElement(OrganiserSearchModel model)
		{
			using var context = new HotelDataBase();

			if (model.Id.HasValue)
			{
				return context.Organisers
					.Include(x => x.MealPlans)
					.Include(x => x.Participants)
					.Include(x => x.Conferences)
					.FirstOrDefault(x => x.Id == model.Id)?
					.GetViewModel;
			}

			if (!string.IsNullOrEmpty(model.OrganiserEmail) && !string.IsNullOrEmpty(model.OrganiserPassword))
				return context.Organisers
					.Include(x => x.MealPlans)
					.Include(x => x.Participants)
					.Include(x => x.Conferences)
					.FirstOrDefault(x => x.OrganiserEmail.Equals(model.OrganiserEmail) && x.OrganiserPassword.Equals(model.OrganiserPassword))?
					.GetViewModel;

			if (!string.IsNullOrEmpty(model.OrganiserEmail))
				return context.Organisers
					.Include(x => x.MealPlans)
					.Include(x => x.Participants)
					.Include(x => x.Conferences)
					.FirstOrDefault(x => x.OrganiserEmail.Equals(model.OrganiserEmail))?
					.GetViewModel;

			return null;
		}

		public OrganiserViewModel? Insert(OrganiserBindingModel model)
		{
			var newOrganiser = Organiser.Create(model);

			if(newOrganiser == null) return null;

			using var context = new HotelDataBase();

			context.Organisers.Add(newOrganiser);
			context.SaveChanges();

			return newOrganiser.GetViewModel;
		}

		public OrganiserViewModel? Update(OrganiserBindingModel model)
		{
			using var context = new HotelDataBase();

			var organiser = context.Organisers.FirstOrDefault(x => x.Id == model.Id);

			if (organiser == null) return null;

			organiser.Update(model);
			context.SaveChanges();

			return organiser.GetViewModel;
		}

		public OrganiserViewModel? Delete(OrganiserBindingModel model)
		{
			using var context = new HotelDataBase();

			var element = context.Organisers.FirstOrDefault(x => x.Id == model.Id);

            if (element != null)
            {
                context.Organisers.Remove(element);
				context.SaveChanges();
            }

			return null;
        }
	}
}