PIbd-22_Shabunov_O.A._SushiBar/SushiBarDatabaseImplement/Storages/IngredientStorage.cs

using SushiBarContracts.BindingModels;
using SushiBarContracts.SearchModels;
using SushiBarContracts.ViewModels;
using SushiBarDatabaseImplement.Models;

namespace SushiBarDatabaseImplement.Storages
{
    public class IngredientStorage
    {
        public List<IngredientViewModel> GetFullList()
        {
            using var Context = new SushiBarDatabase();
            return Context.Ingredients.Select(x => x.ViewModel).ToList();
        }

        public List<IngredientViewModel> GetFilteredList(IngredientSearchModel Model)
        {
            if (string.IsNullOrEmpty(Model.IngredientName))
                return new();

            using var Context = new SushiBarDatabase();
            return Context.Ingredients
                .Where(x => x.IngredientName.Contains(Model.IngredientName))
                .Select(x => x.ViewModel)
                .ToList();
        }

        public IngredientViewModel? GetElement(IngredientSearchModel Model)
        {
            if (!Model.Id.HasValue)
                return null;

            using var Context = new SushiBarDatabase();
            return Context.Ingredients
                .FirstOrDefault(x => x.Id == Model.Id)?.ViewModel;
        }

        public IngredientViewModel? Insert(IngredientBindingModel Model)
        {
            var NewIngredient = Ingredient.Create(Model);

            if (NewIngredient == null)
                return null;

            using var Context = new SushiBarDatabase();
            Context.Ingredients.Add(NewIngredient);
            Context.SaveChanges();

            return NewIngredient.ViewModel;
        }

        public IngredientViewModel? Update(IngredientBindingModel Model)
        {
            using var Context = new SushiBarDatabase();

            var Ingredient = Context.Ingredients.FirstOrDefault(x => x.Id == Model.Id);

            if (Ingredient == null)
                return null;

            Ingredient.Update(Model);
            Context.SaveChanges();

            return Ingredient.ViewModel;
        }

        public IngredientViewModel? Delete(IngredientBindingModel Model)
        {
            using var Context = new SushiBarDatabase();
            var Ingredient = Context.Ingredients.FirstOrDefault(rec => rec.Id == Model.Id);

            if (Ingredient == null)
                return null;

            Context.Ingredients.Remove(Ingredient);
            Context.SaveChanges();
            return Ingredient.ViewModel;
        }
    }
}