using AircraftPlantContracts.BindingModels;
using AircraftPlantContracts.ViewModels;
using AircraftPlantDataModels.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml.Linq;

namespace AircraftPlantFileImplement.Models
{
    /// <summary>
    /// Сущность "Клиент"
    /// </summary>
    public class Client : IClientModel
    {
        /// <summary>
        /// Идентификатор
        /// </summary>
        public int Id { get; set; }

        /// <summary>
        /// ФИО клиента
        /// </summary>
        public string ClientFIO { get; set; } = string.Empty;

        /// <summary>
        /// Логин (электронная почта)
        /// </summary>
        public string Email { get; set; } = string.Empty;

        /// <summary>
        /// Пароль
        /// </summary>
        public string Password { get; set; } = string.Empty;

        /// <summary>
        /// Создание модели клиента
        /// </summary>
        /// <param name="model"></param>
        /// <returns></returns>
        public static Client? Create(ClientBindingModel? model)
        {
            if (model == null)
            {
                return null;
            }

            return new Client()
            {
                Id = model.Id,
                ClientFIO = model.ClientFIO,
                Email = model.Email,
                Password = model.Password
            };
        }

        /// <summary>
        /// Создание модели клиента из данных файла
        /// </summary>
        /// <param name="element"></param>
        /// <returns></returns>
        public static Client? Create(XElement element)
        {
            if (element == null)
            {
                return null;
            }

            return new Client()
            {
                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
                ClientFIO = element.Attribute("ClientFIO")!.Value,
                Email = element.Attribute("Email")!.Value,
                Password = element.Attribute("Password")!.Value
            };
        }

        /// <summary>
        /// Изменение модели клиента
        /// </summary>
        /// <param name="model"></param>
        public void Update(ClientBindingModel? model)
        {
            if (model == null)
            {
                return;
            }

            ClientFIO = model.ClientFIO;
            Password = model.Password;
            Email = model.Email;
        }

        /// <summary>
        /// Получение модели клиента
        /// </summary>
        public ClientViewModel GetViewModel => new()
        {
            Id = Id,
            ClientFIO = ClientFIO,
            Password = Password,
            Email = Email
        };

        /// <summary>
        /// Запись данных о модели клиента в файл
        /// </summary>
        public XElement GetXElement => new("Client",
            new XAttribute("Id", Id),
            new XElement("ClientFIO", ClientFIO),
            new XElement("Email", Email),
            new XElement("Password", Password));
    }
}