---

using System;
using System.Collections.Generic;
using System.Windows.Forms;
using LibraryApp.Console.Models;
using LibraryApp.WinForms.Views;

namespace LibraryApp.WinForms.Forms
{
    public partial class BookForm : Form, IBookView
    {
        private DataGridView dgvBooks;
        private TextBox txtTitle, txtAuthor, txtYear;
        private Button btnAdd, btnIssue, btnReturn;
        private Label lblTitle, lblAuthor, lblYear;

        public BookForm()
        {
            InitializeComponent();
            SetupUI();
        }

        private void InitializeComponent()
        {
            this.Text = "Библиотека книг";
            this.Size = new System.Drawing.Size(800, 600);
            this.StartPosition = FormStartPosition.CenterScreen;
        }

        private void SetupUI()
        {
            // DataGridView
            dgvBooks = new DataGridView
            {
                Location = new System.Drawing.Point(12, 12),
                Size = new System.Drawing.Size(760, 300),
                ReadOnly = true,
                AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill,
                SelectionMode = DataGridViewSelectionMode.FullRowSelect
            };

            // Поля ввода
            int y = 330;
            lblTitle = new Label { Text = "Название:", Location = new System.Drawing.Point(12, y), Size = new System.Drawing.Size(80, 25) };
            txtTitle = new TextBox { Location = new System.Drawing.Point(100, y), Size = new System.Drawing.Size(200, 25) };

            y += 35;
            lblAuthor = new Label { Text = "Автор:", Location = new System.Drawing.Point(12, y), Size = new System.Drawing.Size(80, 25) };
            txtAuthor = new TextBox { Location = new System.Drawing.Point(100, y), Size = new System.Drawing.Size(200, 25) };

            y += 35;
            lblYear = new Label { Text = "Год:", Location = new System.Drawing.Point(12, y), Size = new System.Drawing.Size(80, 25) };
            txtYear = new TextBox { Location = new System.Drawing.Point(100, y), Size = new System.Drawing.Size(200, 25) };

            // Кнопки
            y += 45;
            btnAdd = new Button
            {
                Text = "Добавить книгу",
                Location = new System.Drawing.Point(12, y),
                Size = new System.Drawing.Size(150, 40)
            };

            btnIssue = new Button
            {
                Text = "Выдать книгу",
                Location = new System.Drawing.Point(180, y),
                Size = new System.Drawing.Size(150, 40)
            };

            btnReturn = new Button
            {
                Text = "Вернуть книгу",
                Location = new System.Drawing.Point(348, y),
                Size = new System.Drawing.Size(150, 40)
            };

            // Добавление контролов
            this.Controls.AddRange(new Control[] {
                dgvBooks,
                lblTitle, txtTitle,
                lblAuthor, txtAuthor,
                lblYear, txtYear,
                btnAdd, btnIssue, btnReturn
            });

            // Подписка на события
            btnAdd.Click += (s, e) => AddBook?.Invoke(this, EventArgs.Empty);
            btnIssue.Click += (s, e) => IssueBook?.Invoke(this, EventArgs.Empty);
            btnReturn.Click += (s, e) => ReturnBook?.Invoke(this, EventArgs.Empty);

            // Подписка на выделение строки
            dgvBooks.SelectionChanged += (s, e) =>
            {
                if (dgvBooks.SelectedRows.Count > 0)
                {
                    var row = dgvBooks.SelectedRows[0];
                    SelectedBookId = row.Cells[0].Value?.ToString();
                }
            };
        }

        // Реализация IBookView
        public string BookTitle
        {
            get => txtTitle.Text;
            set => txtTitle.Text = value;
        }

        public string BookAuthor
        {
            get => txtAuthor.Text;
            set => txtAuthor.Text = value;
        }

        public string BookYear
        {
            get => txtYear.Text;
            set => txtYear.Text = value;
        }

        public string SelectedBookId { get; set; }

        public event EventHandler AddBook;
        public event EventHandler IssueBook;
        public event EventHandler ReturnBook;
        public event EventHandler RefreshBooks;

        public void ShowBooks(List<Book> books)
        {
            dgvBooks.DataSource = null;
            dgvBooks.DataSource = books;
        }

        public void ShowMessage(string message)
        {
            MessageBox.Show(message, "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
        }

        public void ClearFields()
        {
            txtTitle.Clear();
            txtAuthor.Clear();
            txtYear.Clear();
        }
    }
}