ISEbd-22_Rozhkov.I.E._Simple/GasStation/Forms/FormProduct.cs

using GasStation.Entities.Enums;
using GasStation.Repositories;
using GasStation.Entities;

namespace GasStation.Forms;

public partial class FormProduct : Form
{

    private readonly IProductRepository _productRepository;

    private int? _productId;

    public FormProduct(IProductRepository productRepository)
    {
        InitializeComponent();
        _productRepository = productRepository ??
            throw new ArgumentNullException(nameof(productRepository));

        comboBoxProduct.DataSource = Enum.GetValues(typeof(ProductType));
    }

    public int ID
    {
        set
        {
            try
            {
                var product = _productRepository.ReadProductByID(value);
                if (product == null)
                {
                    throw new InvalidDataException(nameof(product));
                }

                textBoxProduct.Text = product.ProductName;
                comboBoxProduct.SelectedItem = product.ProductType;
                _productId = 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 (comboBoxProduct.SelectedIndex < 1)
            {
                throw new Exception("Имеются незаполненые поля");
            }
            if (_productId.HasValue)
            {
                _productRepository.UpdateProduct(CreateProduct(_productId.Value));
            }
            else
            {
                _productRepository.CreateProduct(CreateProduct(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 Product CreateProduct(int id) =>
        Product.CreateProduct(id, textBoxProduct.Text, Convert.ToInt32(numericUpDownCost.Value),
            (ProductType)comboBoxProduct.SelectedItem!);

    
}