using PortalAccountsContracts.BindingModels;
using PortalAccountsContracts.SearchModels;
using PortalAccountsContracts.StoragesContracts;
using PortalAccountsContracts.ViewModels;
using PortalAccountsDatabaseImplement.Models;
using Microsoft.EntityFrameworkCore;

namespace PortalAccountsDatabaseImplement.Implements
{
    public class AccountStorage : IAccountStorage
    {
        public List<AccountViewModel> GetFullList()
        {
            using var context = new PortalAccountsDatabase();
            return context.Accounts
                    .Include(x => x.Role)
                    .Select(x => x.GetViewModel)
                    .ToList();
        }

        public List<AccountViewModel> GetFilteredList(AccountSearchModel model)
        {
            using var context = new PortalAccountsDatabase();
            if (model.RoleId.HasValue)
            {
                return context.Accounts
                    .Include(x => x.Role)
                    .Where(x => x.RoleId == model.RoleId)
                    .Select(x => x.GetViewModel)
                    .ToList();
            }
            return new();
        }

        public AccountViewModel? GetElement(AccountSearchModel model)
        {
            if (string.IsNullOrEmpty(model.Login) && !model.Id.HasValue)
            {
                return null;
            }
            using var context = new PortalAccountsDatabase();
            return context.Accounts
                    .Include(x => x.Role)
                    .FirstOrDefault(x => !string.IsNullOrEmpty(model.Login) && x.Login == model.Login ||
                                    model.Id.HasValue && x.Id == model.Id)
                    ?.GetViewModel;
        }

        public AccountViewModel? Insert(AccountBindingModel model)
        {
            var newAccount = Account.Create(model);
            if (newAccount == null)
            {
                return null;
            }
            using var context = new PortalAccountsDatabase();
            context.Accounts.Add(newAccount);
            context.SaveChanges();
            return context.Accounts
                      .Include(x => x.Role)
                      .FirstOrDefault(x => x.Id == newAccount.Id)
                      ?.GetViewModel;
        }

        public AccountViewModel? Update(AccountBindingModel model)
        {
            using var context = new PortalAccountsDatabase();
            var account = context.Accounts.FirstOrDefault(x => x.Id == model.Id);
            if (account == null)
            {
                return null;
            }
            account.Update(model);
            context.SaveChanges();
            return context.Accounts
                         .Include(x => x.Role)
                         .FirstOrDefault(x => x.Id == model.Id)
                         ?.GetViewModel;
        }

        public AccountViewModel? Delete(AccountBindingModel model)
        {
            using var context = new PortalAccountsDatabase();
            var element = context.Accounts.FirstOrDefault(rec => rec.Id == model.Id);
            if (element != null)
            {
                var deletedElement = context.Accounts
                                           .Include(x => x.Role)
                                           .FirstOrDefault(x => x.Id == model.Id)
                                           ?.GetViewModel;
                context.Accounts.Remove(element);
                context.SaveChanges();
                return deletedElement;
            }
            return null;
        }
    }
}