package UI;

import Client.Book;
import Client.SocketClient;
import UI.Components.BooksList;
import UI.Components.LoginPanel;
import org.json.JSONException;

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

public class MainWindow extends JFrame {
    public static String url = "http://localhost:8080";
    public static int userId = 0;

    private LoginPanel loginPanel;

    public MainWindow() {
        this.setTitle("User Panel - Library Management System");
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        this.setSize(650, 500);
        this.setResizable(false);
        this.setLocationRelativeTo(null);

        CardLayout cardLayout = new CardLayout();
        JPanel cardPanel = new JPanel(cardLayout);

        loginPanel = new LoginPanel();
        loginPanel.loginButton.addActionListener(e -> {
            if (SocketClient.socket == null) {
                new SocketClient(url);
                SocketClient.socket.connect();
            }

            login(cardLayout, cardPanel);
        });
        loginPanel.signUpButton.addActionListener(e -> {
            if (SocketClient.socket == null) {
                new SocketClient(url);
                SocketClient.socket.connect();
            }

            loginPanel.statusLabel.setText("Attempting to Sign Up...");

            SocketClient.socket.emit("signUp",
                    "{" +
                            "\"userName\": \"" + loginPanel.usernameInput.getValue() + "\"," +
                            "\"password\": \"" + loginPanel.passwordInput.getValue() + "\"" +
                            "}");

            SocketClient.socket.on("signedUp", data -> {
                this.login(cardLayout, cardPanel);
            });

            SocketClient.socket.on("signUpFailed", data -> {
                loginPanel.statusLabel.setText("Sign Up Failed");
            });
        });
        cardPanel.add(loginPanel);

        cardPanel.add(new BooksList());

        this.add(cardPanel);
    }

    private void login(CardLayout cardLayout, JPanel cardPanel) {
        SocketClient.socket.emit("login",
                "{" +
                        "\"userName\": \"" + loginPanel.usernameInput.getValue() + "\"," +
                        "\"password\": \"" + loginPanel.passwordInput.getValue() + "\"" +
                        "}");

        SocketClient.socket.on("loginFailed", data -> {
            loginPanel.statusLabel.setText("Failed to Log In. Check Username or Password.");
        });

        SocketClient.socket.on("loggedIn", data -> {
            MainWindow.userId = (int) data[0];

            SocketClient.socket.on("allBooksList", d -> {
                try {
                    BooksList.refreshBooks(Book.fromObjects(d));
                } catch (JSONException ex) {
                    throw new RuntimeException(ex);
                }
            });

            SocketClient.socket.on("booksUpdated", d -> {
                try {
                    BooksList.refreshBooks(Book.fromObjects(d));
                } catch (JSONException ex) {
                    throw new RuntimeException(ex);
                }
            });

            SocketClient.socket.emit("getAllBooks");
            cardLayout.next(cardPanel);
        });
    }
}