using Microsoft.EntityFrameworkCore;
using PlumbingRepairContracts.BindingModels;
using PlumbingRepairContracts.SearchModels;
using PlumbingRepairContracts.StoragesContracts;
using PlumbingRepairContracts.ViewModels;
using PlumbingRepairDatabaseImplement.Models;

namespace PlumbingRepairDatabaseImplement.Implements
{
    public class OrderStorage : IOrderStorage
    {
        public OrderViewModel? Delete(OrderBindingModel model)
        {
            using var context = new PlumbingRepairDatabase();
            var element = context.Orders.Include(x => x.Work).FirstOrDefault(rec => rec.Id == model.Id);
            if (element != null)
            {
                context.Orders.Remove(element);
                context.SaveChanges();
                return element.GetViewModel;
            }
            return null;
        }

        public OrderViewModel? GetElement(OrderSearchModel model)
        {
            if (!model.Id.HasValue)
            {
                return null;
            }
            using var context = new PlumbingRepairDatabase();
            return context.Orders
                .Include(x => x.Work)
                .FirstOrDefault(x => model.Id.HasValue && x.Id == model.Id)
                ?.GetViewModel;
        }

        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
        {
            if (!model.Id.HasValue && !model.DateFrom.HasValue || !model.DateTo.HasValue)
            {
                return new();
            }
            using var context = new PlumbingRepairDatabase();
            return context.Orders
                    .Include(x => x.Work)
                    .Where(x => x.Id == model.Id || (model.DateTo >= x.DateCreate && model.DateFrom <= x.DateCreate))
                    .Select(x => x.GetViewModel)
                    .ToList();
        }

        public List<OrderViewModel> GetFullList()
        {
            using var context = new PlumbingRepairDatabase();
            return context.Orders
                    .Include(x => x.Work)
                    .Select(x => x.GetViewModel)
                    .ToList();
        }

        public OrderViewModel? Insert(OrderBindingModel model)
        {
            var newOrder = Order.Create(model);
            if (newOrder == null)
            {
                return null;
            }
            using var context = new PlumbingRepairDatabase();
            context.Orders.Add(newOrder);
            context.SaveChanges();
            return context.Orders
                .Include(x => x.Work)
                .FirstOrDefault()
                ?.GetViewModel;
        }

        public OrderViewModel? Update(OrderBindingModel model)
        {
            using var context = new PlumbingRepairDatabase();
            var order = context.Orders.Include(x => x.Work).FirstOrDefault(x => x.Id == model.Id);
            if (order == null)
            {
                return null;
            }
            order.Update(model);
            context.SaveChanges();
            return order.GetViewModel;
        }
    }
}