using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using LawFirmContracts.BindingModels;
using LawFirmContracts.SearchModels;
using LawFirmContracts.StorageContracts;
using LawFirmContracts.ViewModels;
using LawFirmDatabase.Models;

namespace LawFirmDatabase.Implements
{
   public class CaseStorage : ICaseStorage
    {
        public List<CaseViewModel> GetFullList()
        {
            using var context = new LawFirmDBContext();
            return context.Cases.Select(x => x.GetViewModel).ToList();
        }
        public List<CaseViewModel> GetFilteredList(CaseSearchModel model)
        {
            using var context = new LawFirmDBContext();
            return context.Cases.Where(x => x.Id == model.Id).Select(x => x.GetViewModel).ToList();
        }
        public CaseViewModel? GetElement(CaseSearchModel model)
        {
            if (model == null)
            {
                return null;
            }
            using var context = new LawFirmDBContext();
            if (model.Id.HasValue)
            {
                return context.Cases.FirstOrDefault(x => x.Id == model.Id)?.GetViewModel;
            }
            return null;
        }
        public CaseViewModel? Insert(CaseBindingModel model)
        {
            using var context = new LawFirmDBContext();
            var newCase = Case.Create(context, model);
            if (newCase != null)
            {
                context.Cases.Add(newCase);
                context.SaveChanges();
                return newCase.GetViewModel;
            }
            return null;
        }
        public CaseViewModel? Update(CaseBindingModel model)
        {
            using var context = new LawFirmDBContext();
            var casee = context.Cases.FirstOrDefault(x => x.Id == model.Id);
            if (casee == null)
            {
                return null;
            }
            casee.Update(context, model);
            context.SaveChanges();
            return casee.GetViewModel;
        }
        public CaseViewModel? Delete(CaseBindingModel model)
        {
            using var context = new LawFirmDBContext();
            var casee = context.Cases.FirstOrDefault(x => x.Id == model.Id);
            if (casee == null)
            {
                return null;
            }
            context.Cases.Remove(casee);
            context.SaveChanges();
            return casee.GetViewModel;
        }
    }
}