PIbd-21_Chechevitsyn_S.A_Simple/Publication/Forms/FormPublishingHouses.cs

using Publication.Repositories;
using Publication.Repositories.Implementations;
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 Publication.Forms;

public partial class FormPublishingHouses : Form
{
    private readonly IUnityContainer container;
    private readonly IPublisingHouseRepository publisingHouseRepository;
    public FormPublishingHouses(IUnityContainer _container, IPublisingHouseRepository _publisingHouseRepository)
    {
        container = _container ?? throw new ArgumentNullException(nameof(_container));
        publisingHouseRepository = _publisingHouseRepository ?? throw new ArgumentNullException(nameof(_publisingHouseRepository));
        InitializeComponent();
    }

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

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

    private void buttonDelete_Click(object sender, EventArgs e)
    {
        if (!TryGetIdentifierFromSelectedRow(out var findId))
        {
            return;
        }

        if (MessageBox.Show("Удалить запись?", "Удаление", MessageBoxButtons.YesNo) != DialogResult.Yes)
        {
            return;
        }

        try
        {
            publisingHouseRepository.DeletePublishingHouse(findId);
            LoadList();
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message, "Ошибка при удалении", MessageBoxButtons.OK, MessageBoxIcon.Error);
        }

    }

    private void FormPublishingHouses_Load(object sender, EventArgs e)
    {
        try
        {
            LoadList();
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message, "Ошибка при загрузке",
        MessageBoxButtons.OK, MessageBoxIcon.Error);
        }
    }
    private bool TryGetIdentifierFromSelectedRow(out int id)
    {
        id = 0;
        if (dataGridView1.SelectedRows.Count < 1)
        {
            MessageBox.Show("Нет выбранной записи", "Ошибка",
        MessageBoxButtons.OK, MessageBoxIcon.Error);
            return false;
        }

        id =
     Convert.ToInt32(dataGridView1.SelectedRows[0].Cells["Id"].Value);
        return true;
    }

    private void LoadList()
    {
        dataGridView1.DataSource = publisingHouseRepository.ReadPublishingHouses();
        dataGridView1.Columns["Id"].Visible = false;
    }
}