import net.minecraft.client.Minecraft;
import net.minecraft.client.main.Main;

import javax.swing.*;
import java.awt.*;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.security.MessageDigest;

public class InfinityOriginLogin extends JFrame {

public static boolean successful = false;
private final JTextField usernameField;
private final JPasswordField passwordField;
private final JButton loginButton;
private final String verifyAddress = "https://127.0.0.1:8000";

public InfinityOriginLogin() {
setTitle("InfinityOrigin Login");
setSize(400, 300);
setDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE);
setLocationRelativeTo(null);

JPanel panel = new JPanel();
panel.setLayout(new GridBagLayout());
panel.setBorder(BorderFactory.createEmptyBorder(20, 20, 20, 20));

Font customFont = loadCustomFont(24f);
if (customFont == null) {
customFont = new Font("Arial", Font.BOLD, 24);
        }

JLabel titleLabel = new JLabel("InfinityOrigin");
        titleLabel.setFont(customFont);
titleLabel.setHorizontalAlignment(SwingConstants.CENTER);

JLabel usernameLabel = new JLabel("Username:");
usernameField = new JTextField(15);

JLabel passwordLabel = new JLabel("Password:");
passwordField = new JPasswordField(15);

loginButton = new JButton("Login");
loginButton.setBackground(new Color(0, 153, 255));
loginButton.setForeground(Color.WHITE);
loginButton.setFocusPainted(false);
loginButton.setFont(new Font("Arial", Font.BOLD, 14));
loginButton.setPreferredSize(new Dimension(100, 30));

 loginButton.addActionListener(e -> {
usernameField.setVisible(false);
passwordField.setVisible(false);
loginButton.setVisible(false);
usernameLabel.setVisible(false);
passwordLabel.setVisible(false);
            showLoadingAnimation();
        });

GridBagConstraints gbc = new GridBagConstraints();
gbc.insets = new Insets(10, 10, 10, 10);
gbc.gridx = 0;
gbc.gridy = 0;
gbc.gridwidth = 2;
gbc.anchor = GridBagConstraints.CENTER;
        panel.add(titleLabel, gbc);

gbc.gridwidth = 1;
gbc.gridy = 1;
        panel.add(usernameLabel, gbc);

gbc.gridx = 1;
panel.add(usernameField, gbc);

gbc.gridx = 0;
gbc.gridy = 2;
        panel.add(passwordLabel, gbc);

gbc.gridx = 1;
panel.add(passwordField, gbc);

gbc.gridx = 0;
gbc.gridy = 3;
gbc.gridwidth = 2;
panel.add(loginButton, gbc);

        add(panel);
setVisible(true);
    }

@SuppressWarnings("InfiniteLoopStatement")
private void showLoadingAnimation() {
InputStream gifStream = getClass().getResourceAsStream("/loading.gif");
if (gifStream == null) {
JOptionPane.showMessageDialog(this, "GIF 文件未找到", "错误", JOptionPane.ERROR_MESSAGE);
 return;
        }

Image loadingImage = new ImageIcon("loading.gif").getImage();
ImageIcon loadingGif = new ImageIcon(loadingImage.getScaledInstance(100, 100, Image.SCALE_DEFAULT));
JLabel loadingGifLabel = new JLabel(loadingGif);
loadingGifLabel.setHorizontalAlignment(SwingConstants.CENTER);

Font customFont = loadCustomFont(18f);
if (customFont == null) {
customFont = new Font("Arial", Font.BOLD, 18);
        }
JLabel loadingLabel = new JLabel("加载中，请稍等...");
        loadingLabel.setFont(customFont);
loadingLabel.setHorizontalAlignment(SwingConstants.CENTER);

JPanel loadingPanel = new JPanel(new BorderLayout());
loadingPanel.add(loadingGifLabel, BorderLayout.CENTER);
loadingPanel.add(loadingLabel, BorderLayout.SOUTH);

        getContentPane().removeAll();
        getContentPane().add(loadingPanel);
        revalidate();
        repaint();

 new SwingWorker<Void, Void>() {
@Override
            protected Void doInBackground() throws Exception {
Thread.sleep(300);
 return null;
            }

@Override
            protected void done() {
String username = usernameField.getText();
String password = new String(passwordField.getPassword());

 if (!isStatus200()){
JOptionPane.showMessageDialog(InfinityOriginLogin.this, "服务器异常，请联系腐竹", "错误", JOptionPane.ERROR_MESSAGE);
                }

 if (isSuccessfulLogin(username, password)) {
JOptionPane.showMessageDialog(InfinityOriginLogin.this, "登录成功！");
                    getContentPane().removeAll();
getContentPane().add(new JPanel());
                    revalidate();
                    repaint();
setVisible(false);
                    dispose();
successful = true;
} else {
JOptionPane.showMessageDialog(InfinityOriginLogin.this, "用户名或密码错误", "错误", JOptionPane.ERROR_MESSAGE);
System.err.println("InfinityOrigin: Error login.");
                    getContentPane().removeAll();
getContentPane().add(new JPanel());
                    revalidate();
                    repaint();
setVisible(false);
                    dispose();
                }


            }
        }.execute();
    }

private Font loadCustomFont(float size) {
try (InputStream fontStream = getClass().getResourceAsStream("/" + "MCAE.ttf")) {
if (fontStream == null) {
System.err.println("字体文件未找到: " + "MCAE.ttf");
 return null;
            }
Font font = Font.createFont(Font.TRUETYPE_FONT, fontStream);
 return font.deriveFont(size);
} catch (Exception e) {
System.err.println("加载字体失败: " + e.getMessage());
 return null;
        }
    }

public static void start() {
SwingUtilities.invokeLater(InfinityOriginLogin::new);
    }

​
public boolean isSuccessfulLogin(String username, String password) {
boolean value = false;
 try {
String urlString = verifyAddress+"/login?username=" + username + "&password=" + password;
URL url = new URL(urlString);
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");

BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            String inputLine;
StringBuilder response = new StringBuilder();

while ((inputLine = in.readLine()) != null) {
                response.append(inputLine);
            }
            in.close();

if (response.toString().equals("true")) {
value = true;
            }

} catch (Exception e) {
            e.printStackTrace();
        }
 return value;
    }

public boolean isStatus200() {
 try {
URL url = new URL(verifyAddress+"/status");
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setConnectTimeout(5000);
connection.setReadTimeout(5000);
 int responseCode = connection.getResponseCode();
return responseCode >= 200 && responseCode < 300;
} catch (IOException e) {
 return false;
        }
    }
}