PIbd-23_Baryshev_D.A._Garage/ProjectGarage/Forms/FormDrivers.cs

using ProjectGarage.Repositories;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using Unity;

namespace ProjectGarage.Forms
{
    public partial class FormDrivers : Form
    {
        private readonly IUnityContainer _container;
        private readonly IDriverRepository _driverRepository;

        public FormDrivers(IUnityContainer container, IDriverRepository driverRepository)
        {
            InitializeComponent();
            _container = container ?? throw new ArgumentNullException(nameof(container));
            _driverRepository = driverRepository ?? throw new ArgumentNullException(nameof(driverRepository));
        }
        private void FormDrivers_Load(object sender, EventArgs e)
        {
            try
            {
                LoadList();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Ошибка при загрузке",
                MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }


        private void ButtonAddDriver_Click(object sender, EventArgs e)
        {
            try
            {
                _container.Resolve<FormDriver>().ShowDialog();
                LoadList();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Ошибка при добавлении",
                MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void ButtonUpdateDriver_Click(object sender, EventArgs e)
        {
            if (!TryGetIdentifierFromSelectedRow(out var findId))
            {
                return;
            }
            try
            {
                var form = _container.Resolve<FormDriver>();
                form.Id = findId;
                form.ShowDialog();
                LoadList();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Ошибка при изменении",
                MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void ButtonDeleteDriver_Click(object sender, EventArgs e)
        {
            if (!TryGetIdentifierFromSelectedRow(out var findId))
            {
                return;
            }
            if (MessageBox.Show("Удалить запись?", "Удаление",
            MessageBoxButtons.YesNo) != DialogResult.Yes)
            {
                return;
            }
            try
            {
                _driverRepository.DeleteDriver(findId);
                LoadList();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Ошибка при удалении",
                MessageBoxButtons.OK, MessageBoxIcon.Error);
            }

        }

        private void LoadList() => dataGridViewDrivers.DataSource = _driverRepository.ReadDrivers();

        private bool TryGetIdentifierFromSelectedRow(out int id)
        {
            id = 0;
            if (dataGridViewDrivers.SelectedRows.Count < 1)
            {
                MessageBox.Show("Нет выбранной записи", "Ошибка",
                MessageBoxButtons.OK, MessageBoxIcon.Error);
                return false;
            }
            id =
            Convert.ToInt32(dataGridViewDrivers.SelectedRows[0].Cells["Id"].Value);
            return true;
        }
    }
}