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

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

        public List<CookViewModel> GetFilteredList(CookSearchModel Model)
        {
            using var Context = new SushiBarDatabase();
            
            if (Model.EmploymentDateFrom.HasValue)
            {
                return Context.Cooks
                    .Where(x => x.EmploymentDate >= Model.EmploymentDateFrom && x.EmploymentDate <= Model.EmploymentDateTo)
                    .Select(x => x.ViewModel)
                    .ToList();
            }

            return new();
        }

        public CookViewModel? GetElement(CookSearchModel Model)
        {
            if (!Model.Id.HasValue)
                return null;

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

        public CookViewModel? Insert(CookBindingModel Model)
        {
            var NewCook = Cook.Create(Model);

            if (NewCook == null)
                return null;

            using var Context = new SushiBarDatabase();
            Context.Cooks.Add(NewCook);
            Context.SaveChanges();

            return NewCook.ViewModel;
        }

        public CookViewModel? Update(CookBindingModel Model)
        {
            using var Context = new SushiBarDatabase();

            var Cook = Context.Cooks.FirstOrDefault(x => x.Id == Model.Id);

            if (Cook == null)
                return null;

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

            return Cook.ViewModel;
        }

        public CookViewModel? Delete(CookBindingModel Model)
        {
            using var Context = new SushiBarDatabase();
            var Cook = Context.Cooks.FirstOrDefault(rec => rec.Id == Model.Id);

            if (Cook == null)
                return null;

            Context.Cooks.Remove(Cook);
            Context.SaveChanges();
            return Cook.ViewModel;
        }
    }
}