import javax.swing.*;
import java.awt.*;

public class BookFormPanel extends JPanel {

    private final LibraryController controller;

    public BookFormPanel(LibraryController controller) {
        this.controller = controller;
        buildUI();
    }

    private void buildUI() {
        setLayout(new BorderLayout());

        JLabel header = new JLabel("Book Management", SwingConstants.CENTER);
        header.setFont(new Font("Arial", Font.BOLD, 18));
        add(header, BorderLayout.NORTH);

        JPanel form = new JPanel(new GridLayout(4, 2, 10, 10));

        JTextField isbnField = new JTextField();
        JTextField titleField = new JTextField();
        JButton addBtn = new JButton("Add Book");
        JButton searchBtn = new JButton("Search");

        form.add(new JLabel("ISBN:"));
        form.add(isbnField);

        form.add(new JLabel("Title:"));
        form.add(titleField);

        form.add(addBtn);
        form.add(searchBtn);

        JPanel formWrapper = new JPanel(new FlowLayout(FlowLayout.LEFT));
		formWrapper.add(form);
		add(formWrapper, BorderLayout.WEST);

        JTextArea output = new JTextArea();
        output.setEditable(false);
        add(new JScrollPane(output), BorderLayout.CENTER);

        addBtn.addActionListener(e -> {
            String isbn = isbnField.getText().trim();
            String title = titleField.getText().trim();

            if (isbn.isEmpty() || title.isEmpty()) {
                JOptionPane.showMessageDialog(this, "Please fill all fields.");
                return;
            }

            controller.addBook(new Book(isbn, title));
            output.setText("Book added:\n" + isbn + " - " + title);
        });

        searchBtn.addActionListener(e -> {
            String isbn = isbnField.getText().trim();
            Book b = controller.findBook(isbn);

            if (b == null) {
                output.setText("Book not found.");
            } else {
                output.setText("Book found:\nISBN: " + b.getIsbn() + "\nTitle: " + b.getTitle());
            }
        });
    }
}