SUBD_Labs/BeautySalonDatabaseImplement/Implements/ServiceStorage.cs

using BeautySalonContracts.BindingModels;
using BeautySalonContracts.SearchModels;
using BeautySalonContracts.StoragesContracts;
using BeautySalonContracts.ViewModels;
using BeautySalonDatabaseImplement.Models;

namespace BeautySalonDatabaseImplement.Implements
{
    public class ServiceStorage : IServiceStorage
    {
        public List<ServiceViewModel> GetFullList()
        {
            using var context = new BeautySalonDatabase();
            return context.Services
            .Select(x => x.GetViewModel)
           .ToList();
        }
        public List<ServiceViewModel> GetFilteredList(ServiceSearchModel
       model)
        {
            if (string.IsNullOrEmpty(model.ServiceName))
            {
                return new();
            }
            using var context = new BeautySalonDatabase();
            return context.Services
            .Where(x => x.ServiceName.Contains(model.ServiceName))
           .Select(x => x.GetViewModel)
           .ToList();
        }
        public ServiceViewModel? GetElement(ServiceSearchModel model)
        {
            if (string.IsNullOrEmpty(model.ServiceName) && !model.Id.HasValue)
            {
                return null;
            }
            using var context = new BeautySalonDatabase();
            return context.Services
            .FirstOrDefault(x =>
           (!string.IsNullOrEmpty(model.ServiceName) && x.ServiceName ==
           model.ServiceName) || (model.Id.HasValue && x.Id == model.Id))
            ?.GetViewModel;
        }
        public ServiceViewModel? Insert(ServiceBindingModel model)
        {
            var newService = Service.Create(model);
            if (newService == null)
            {
                return null;
            }
            using var context = new BeautySalonDatabase();
            context.Services.Add(newService);
            context.SaveChanges();
            return newService.GetViewModel;
        }
        public ServiceViewModel? Update(ServiceBindingModel model)
        {
            using var context = new BeautySalonDatabase();
            var component = context.Services.FirstOrDefault(x => x.Id == model.Id);
            if (component == null)
            {
                return null;
            }
            component.Update(model);
            context.SaveChanges();
            return component.GetViewModel;
        }
        public ServiceViewModel? Delete(ServiceBindingModel model)
        {
            using var context = new BeautySalonDatabase();
            var element = context.Services.FirstOrDefault(rec => rec.Id == model.Id);
            if (element != null)
            {
                context.Services.Remove(element);
                context.SaveChanges();
                return element.GetViewModel;
            }
            return null;
        }        
    }
}