using SushiBarContracts.BindingModels;
using SushiBarContracts.SearchModels;
using SushiBarContracts.StoragesContracts;
using SushiBarContracts.ViewModels;
using SushiBarDatabaseImplement.Models;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SushiBarDatabaseImplement.Implements
{
    public class MenuStorage : IMenuStorage
    {
        public MenuViewModel? Delete(MenuBindingModel model)
        {
            using var context = new SushiBarDatabase();
            var element = context.Menus.FirstOrDefault(x => x.Id == model.Id);
            if (element != null)
            {
                context.Menus.Remove(element);
                context.SaveChanges();
                return element.GetViewModel;
            }
            return null;
        }

        public MenuViewModel? GetElement(MenuSearchModel model)
        {
            using var context = new SushiBarDatabase();
            return context.Menus.FirstOrDefault(x => (!string.IsNullOrEmpty(model.FoodName)) && x.FoodName == model.FoodName || model.Id.HasValue && x.Id == model.Id)?.GetViewModel;
        }

        public List<MenuViewModel> GetFilteredList(MenuSearchModel model)
        {
            if (string.IsNullOrEmpty(model.FoodName))
            {
                return new();
            }
            using var context = new SushiBarDatabase();
            return context.Menus.Where(x => x.FoodName.Contains(model.FoodName)).Select(x => x.GetViewModel).ToList();
        }

        public List<MenuViewModel> GetFullList()
        {
            using var context = new SushiBarDatabase();
            return context.Menus.Select(x => x.GetViewModel).ToList();
        }

        public MenuViewModel? Insert(MenuBindingModel model)
        {
            var newMenu = Menu.Create(model);
            if (newMenu == null)
            {
                return null;
            }
            using var context = new SushiBarDatabase();
            context.Menus.Add(newMenu);
            context.SaveChanges();
            return newMenu.GetViewModel;
        }

        public MenuViewModel? Update(MenuBindingModel model)
        {
            using var context = new SushiBarDatabase();
            var component = context.Menus.FirstOrDefault(x => x.Id == model.Id);
            if (component == null)
            {
                return null;
            }
            component.Update(model);
            context.SaveChanges();
            return component.GetViewModel;
        }
    }
}