package net.minecraft.launcher.ui.popups.login;

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.reflect.TypeToken;
import net.minecraft.launcher.Http;
import net.minecraft.launcher.updater.LowerCaseEnumTypeAdapterFactory;
import org.apache.commons.lang3.exception.ExceptionUtils;

import javax.swing.*;
import javax.swing.border.EmptyBorder;
import java.net.URL;
import java.util.Map;

public class AuthErrorForm extends JPanel {
    private final LogInPopup popup;
    private final JLabel errorLabel = new JLabel();
    private final Gson gson = new GsonBuilder().registerTypeAdapterFactory(new LowerCaseEnumTypeAdapterFactory()).create();

    public AuthErrorForm(LogInPopup popup) {
        this.popup = popup;

        createInterface();
        clear();
    }

    protected void createInterface() {
        setBorder(new EmptyBorder(0, 0, 15, 0));
        this.errorLabel.setFont(this.errorLabel.getFont().deriveFont(1));
        add(this.errorLabel);
    }

    public void clear() {
        setVisible(false);
    }

    public void setVisible(boolean value) {
        super.setVisible(value);
        this.popup.repack();
    }

    public void displayError(final Throwable throwable, final String[] lines) {
        if (SwingUtilities.isEventDispatchThread()) {
            String error = "";
            for (String line : lines) {
                error = error + "<p>" + line + "</p>";
            }
            if (throwable != null)
                error = error + "<p style='font-size: 0.9em; font-style: italic;'>(" + ExceptionUtils.getRootCauseMessage(throwable) + ")</p>";
            this.errorLabel.setText("<html><div style='text-align: center;'>" + error + " </div></html>");
            if (!isVisible()) refreshStatuses();
            setVisible(true);
        } else {
            SwingUtilities.invokeLater(new Runnable() {
                public void run() {
                    AuthErrorForm.this.displayError(throwable, lines);
                }
            });
        }
    }

    public void refreshStatuses() {
        this.popup.getLauncher().getVersionManager().getExecutorService().submit(new Runnable() {
            public void run() {
                try {
                    TypeToken token = new TypeToken() {
                    };
                    Map statuses = (Map) AuthErrorForm.this.gson.fromJson(Http.performGet(new URL("http://status.mojang.com/check?service=authserver.mojang.com"), AuthErrorForm.this.popup.getLauncher().getProxy()), token.getType());

                    if (statuses.get("authserver.mojang.com") == AuthErrorForm.ServerStatus.RED)
                        AuthErrorForm.this.displayError(null, new String[]{"It looks like our servers are down right now. Sorry!", "We're already working on the problem and will have it fixed soon.", "Please try again later!"});
                } catch (Exception localException) {
                }
            }
        });
    }

    public static enum ServerStatus {
        GREEN("Online, no problems detected."),
        YELLOW("May be experiencing issues."),
        RED("Offline, experiencing problems.");

        private final String title;

        private ServerStatus(String title) {
            this.title = title;
        }
    }
}