PIAPS_CW/WinFormsApp/FormMediaFiles.cs

using BusinessLogic.BusinessLogic;
using Contracts.BindingModels;
using Contracts.BusinessLogicContracts;
using Contracts.SearchModels;
using Microsoft.Extensions.Logging;
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;

namespace WinFormsApp
{
    public partial class FormMediaFiles : Form
    {
        private readonly ILogger _logger;
        private readonly IMediaFileLogic _mediafileLogic;
        private readonly IProductLogic _productLogic;
        private byte[]? _image;
        public FormMediaFiles(ILogger<FormMediaFiles> logger, IMediaFileLogic mediaFileLogic, IProductLogic productLogic)
        {
            InitializeComponent();
            _logger = logger;
            _mediafileLogic = mediaFileLogic;
            _productLogic = productLogic;
            _image = null;
        }

        private void LoadData()
        {
            if (comboBoxProduct.SelectedIndex < 0) return;
            _logger.LogInformation("Загрузка файлов");
            try
            {
                var filelist = _mediafileLogic.ReadList(null);
                if (filelist != null)
                {
                    dataGridView.DataSource = filelist;
                }
            }
            catch (Exception ex)
            {

            }
            var list = _mediafileLogic.ReadList(new MediaFileSearchModel()
            {
                ProductId = (Guid?)comboBoxProduct.SelectedValue ?? Guid.Empty,
            });
            panelFiles.Controls.Clear();
            if (list.Count != 0)
            {
                foreach (var item in list)
                {

                    var imageBox = new PictureBox();
                    imageBox.Dock = DockStyle.Top;
                    using (var ms = new MemoryStream(item.Image))
                    {
                        Image image = Image.FromStream(ms);
                        imageBox.Image = image;
                    }
                    imageBox.Width = groupBox1.Width;
                    panelFiles.Controls.Add(imageBox);
                    imageBox.SizeMode = PictureBoxSizeMode.Zoom;
                    imageBox.Height = 400;
                    imageBox.BorderStyle = BorderStyle.FixedSingle;

                    var imageLabel = new Label();
                    imageLabel.Dock = DockStyle.Top;
                    imageLabel.TextAlign = ContentAlignment.MiddleCenter;
                    panelFiles.Controls.Add(imageLabel);
                    panelFiles.Refresh();
                }
            }

        }

        private void FormMediaFiles_Load(object sender, EventArgs e)
        {
            try
            {
                var list = _productLogic.ReadList(null);
                if (list != null)
                {
                    comboBoxProduct.DisplayMember = "Name";
                    comboBoxProduct.ValueMember = "Id";
                    comboBoxProduct.DataSource = list;
                    comboBoxProduct.SelectedItem = null;
                }

            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "Ошибка загрузки списка продуктов");
                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void comboBoxProduct_SelectedIndexChanged(object sender, EventArgs e)
        {
            LoadData();
        }

        private void buttonAdd_Click(object sender, EventArgs e)
        {
            if (comboBoxProduct.SelectedIndex != -1 && _image is not null)
            {
                _mediafileLogic.Create(new MediaFileBindingModel()
                {
                    Id = Guid.NewGuid(),
                    Image = _image,
                    ProductId = (Guid)comboBoxProduct.SelectedValue,
                });
                dataGridView.Update();
                panelFiles.Refresh();
            }

        }

        private void buttonSelectFile_Click(object sender, EventArgs e)
        {
            var dialog = new OpenFileDialog();
            dialog.Filter = "Image Files(*.jpg; *.png; *.jpeg; *.gif; *.bmp)|*.jpg;*.png;*.jpeg;*.gif;*.bmp";
            if (dialog.ShowDialog() == DialogResult.OK)
            {
                using (var fs = new FileStream(dialog.FileName, FileMode.Open, FileAccess.Read))
                {
                    _image = new byte[fs.Length];
                    fs.Read(_image, 0, (int)fs.Length);
                }
                labelFile.Text = Path.GetFileName(dialog.FileName);
            }
        }

        private void FormMediaFiles_Resize(object sender, EventArgs e)
        {
            groupBoxFiles.Width = Convert.ToInt32(this.Width * 0.4);
            panelFiles.Height = this.Height;
            foreach (var control in this.Controls.OfType<PictureBox>())
            {
                control.Width = panelFiles.Width;
                control.Height = Convert.ToInt32(panelFiles.Height * 0.3);
            }
        }
    }
}