using GasStation.Entities;
using GasStation.Repositories;


namespace GasStation.Forms
{
    public partial class FormGasman : Form
    {
        private readonly IGasmanRepository _gasmanRepository;

        private int? _gasmanId;

        public FormGasman(IGasmanRepository gasmanRepository)
        {
            InitializeComponent();
            _gasmanRepository = gasmanRepository ??
                throw new ArgumentNullException(nameof(gasmanRepository));
        }

        public int ID
        {
            set
            {
                try
                {
                    var gasman = _gasmanRepository.ReadGasmanByID(value);
                    if (gasman != null)
                    {
                        throw new InvalidDataException(nameof(gasman));
                    }

                    textBoxName.Text = gasman.GasmanName;
                    textBoxNumber.Text = gasman.PhoneNumber;
                    _gasmanId = value;
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message, "Ошибка при получении данных", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    return;
                }
            }
        }

        private void ButtonSave_Click(object sender, EventArgs e)
        {
            try
            {
                if (string.IsNullOrWhiteSpace(textBoxName.Text) ||
                    string.IsNullOrWhiteSpace(textBoxNumber.Text))
                {
                    throw new Exception("Имеются незаполненые поля");
                }
                if (_gasmanId.HasValue)
                {
                    _gasmanRepository.UpdateGasman(CreateGasman(_gasmanId.Value));
                }
                else
                {
                    _gasmanRepository.CreateGasman(CreateGasman(0));
                }
                Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Ошибка при сохранении", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
        }

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

        private Gasman CreateGasman(int id) => Gasman.CreateGasman(id, textBoxName.Text, textBoxNumber.Text);
    }
}