/*
 * Copyright (C) 2013 JPEXS
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.jpexs.decompiler.flash.gui;

import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.logging.Handler;
import java.util.logging.Level;
import java.util.logging.LogRecord;
import javax.swing.BorderFactory;
import javax.swing.BoxLayout;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JToggleButton;

/**
 *
 * @author JPEXS
 */
public class ErrorLogFrame extends AppFrame {

    private JPanel logView = new JPanel();
    private Handler handler;

    public Handler getHandler() {
        return handler;
    }

    public ErrorLogFrame() {
        setTitle("Log");
        setSize(500, 400);
        View.centerScreen(this);
        View.setWindowIcon(this);
        setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE);
        Container cnt = getContentPane();
        cnt.setLayout(new BorderLayout());

        logView.setLayout(new ListLayout());

        cnt.add(new JScrollPane(logView));
        handler = new Handler() {
            @Override
            public void publish(LogRecord record) {
                log(record.getLevel(), record.getMessage(), record.getThrown());
            }

            @Override
            public void flush() {
            }

            @Override
            public void close() throws SecurityException {
            }
        };
        //setAlwaysOnTop(true);
    }

    public void log(Level level, String msg, String detail) {
        if (detail == null) {
            log(level, msg, (JComponent) null);
            return;
        }
        final JTextArea detailTextArea = new JTextArea(detail);
        detailTextArea.setEditable(false);
        detailTextArea.setOpaque(false);
        detailTextArea.setFont(new JLabel().getFont());
        log(level, msg, detailTextArea);
    }

    private void log(Level level, String msg, final JComponent detail) {
        JPanel pan = new JPanel();
        pan.setLayout(new ListLayout());

        JPanel header = new JPanel();
        header.setLayout(new BoxLayout(header, BoxLayout.X_AXIS));
        final JToggleButton expandButton = new JToggleButton(View.getIcon("expand16"));
        expandButton.setFocusPainted(false);
        expandButton.setBorderPainted(false);
        expandButton.setFocusable(false);
        expandButton.setContentAreaFilled(false);
        final JScrollPane scrollPane;
        if (detail != null) {
            scrollPane = new JScrollPane(detail);
            scrollPane.setAlignmentX(0f);
            scrollPane.setMinimumSize(new Dimension(getWidth(), 500));
        } else {
            scrollPane = null;
        }

        expandButton.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
        if (detail != null) {
            expandButton.setMargin(new Insets(2, 2, 2, 2));
            expandButton.addActionListener(new ActionListener() {
                @Override
                public void actionPerformed(ActionEvent e) {
                    scrollPane.setVisible(expandButton.isSelected());
                    revalidate();
                    repaint();
                }
            });
        }

        SimpleDateFormat format = new SimpleDateFormat("dd/MM/YYYY HH:mm:ss");

        JLabel dateLabel = new JLabel(format.format(new Date()));
        dateLabel.setPreferredSize(new Dimension(130, 25));
        dateLabel.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
        header.add(dateLabel);



        JLabel levelLabel = new JLabel(level.getName());
        levelLabel.setPreferredSize(new Dimension(75, 25));
        levelLabel.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
        header.add(levelLabel);
        JTextArea msgLabel = new JTextArea(msg);
        msgLabel.setEditable(false);
        msgLabel.setOpaque(false);
        msgLabel.setFont(levelLabel.getFont());

        msgLabel.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
        header.add(msgLabel);
        header.setAlignmentX(0f);
        if (detail != null) {
            header.add(expandButton);
        }
        pan.add(header);
        if (detail != null) {
            pan.add(scrollPane);
            scrollPane.setVisible(false);
        }
        //pan.setPreferredSize(new Dimension(getWidth(), 30));
        pan.setAlignmentX(0f);
        //curGBConstraints.weighty = 1;
        logView.add(pan);
        revalidate();
        repaint();
    }

    public void log(Level level, String msg) {
        log(level, msg, (String) null);
    }

    public void log(Level level, String msg, Throwable ex) {
        StringWriter sw = new StringWriter();
        ex.printStackTrace(new PrintWriter(sw));
        log(level, msg, sw.toString());
    }
}