using Contracts.BindingModels;
using Contracts.StorageContracts;
using Contracts.ViewModels;
using DatabaseImplement.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace DatabaseImplement.Implements
{
    public class CategoryStorage : ICategoryStorage
    {
        public List<CategoryViewModel> GetFullList()
        {
            using var context = new Database();
            return context.Categories.Select(x => x.GetViewModel).ToList();
        }
        public CategoryViewModel? Insert(CategoryBindingModel model)
        {
            var newProvider = Category.Create(model);
            if (newProvider == null) return null;
            using var context = new Database();
            context.Categories.Add(newProvider);
            context.SaveChanges();
            return newProvider.GetViewModel;
        }
        public CategoryViewModel? Update(CategoryBindingModel model)
        {
            using var context = new Database();
            var provider = context.Categories.FirstOrDefault(x => x.Id == model.Id);
            if (provider == null) return null;
            provider.Update(model);
            context.SaveChanges();
            return provider.GetViewModel;
        }
        public CategoryViewModel? Delete(CategoryBindingModel model)
        {
            using var context = new Database();
            var element = context.Categories.FirstOrDefault(x => x.Id == model.Id);
            if (element != null)
            {
                context.Categories.Remove(element);
                context.SaveChanges();
                return element.GetViewModel;
            }
            return null;
        }
    }
}