using System;
using System.Windows.Forms;
using YourNamespace.Entities;
using YourNamespace.Repositories;

namespace YourNamespace.Forms
{
    public partial class FormAirport : Form
    {
        private readonly IAirportRepository _airportRepository;
        private int? _airportId;

        public int Id
        {
            set
            {
                try
                {
                    var airport = _airportRepository.ReadAirportById(value);
                    if (airport == null)
                    {
                        throw new InvalidDataException(nameof(airport));
                    }
                    textBoxName.Text = airport.Name;
                    textBoxLocation.Text = airport.Location;
                    _airportId = value;
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message, "Ошибка при получении данных", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    return;
                }
            }
        }

        public FormAirport(IAirportRepository airportRepository)
        {
            InitializeComponent();
            _airportRepository = airportRepository ?? throw new ArgumentNullException(nameof(airportRepository));
        }

        private void ButtonSave_Click(object sender, EventArgs e)
        {
            try
            {
                if (string.IsNullOrWhiteSpace(textBoxName.Text) || string.IsNullOrWhiteSpace(textBoxLocation.Text))
                {
                    throw new Exception("Имеются незаполненные поля");
                }
                if (_airportId.HasValue)
                {
                    _airportRepository.UpdateAirport(CreateAirport(_airportId.Value));
                }
                else
                {
                    _airportRepository.CreateAirport(CreateAirport(0));
                }
                Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Ошибка при сохранении", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void ButtonCancel_Click(object sender, EventArgs e) => Close();

        private Airport CreateAirport(int id) => Airport.CreateEntity(id, textBoxName.Text, textBoxLocation.Text);
    }
}