/*******************************************************************************
 * sdrtrunk
 * Copyright (C) 2014-2017 Dennis Sheirer
 *
 * 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 channel.details;

import channel.state.DecoderState;
import controller.channel.Channel;
import controller.channel.ChannelProcessingManager;
import module.ProcessingChain;
import net.miginfocom.swing.MigLayout;
import sample.Listener;

import javax.swing.*;
import javax.swing.text.DefaultCaret;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class ChannelDetailPanel extends JPanel implements Listener<ProcessingChain>
{
    private static final String EMPTY_DETAILS = "Please select a channel to view details";

    private JLabel mSystemLabel;
    private JLabel mSiteLabel;
    private JLabel mNameLabel;
    private JTextArea mDetailTextPane;

    private ChannelProcessingManager mChannelProcessingManager;
    private ProcessingChain mProcessingChain;

    public ChannelDetailPanel(ChannelProcessingManager channelProcessingManager)
    {
        mChannelProcessingManager = channelProcessingManager;

        init();
    }

    private void init()
    {
        setLayout(new MigLayout("insets 0 0 0 0", "[grow,fill]", "[]0[grow,fill]"));

        JPanel buttonPanel = new JPanel();
        buttonPanel.setLayout(new MigLayout("insets 1 1 1 1", "[][grow,fill][][grow,fill][][grow,fill][]", ""));

        buttonPanel.add(new JLabel("System:"));
        mSystemLabel = new JLabel(" ");
        buttonPanel.add(mSystemLabel);

        buttonPanel.add(new JLabel("Site:"));
        mSiteLabel = new JLabel(" ");
        buttonPanel.add(mSiteLabel);

        buttonPanel.add(new JLabel("Channel Name:"));
        mNameLabel = new JLabel(" ");
        buttonPanel.add(mNameLabel);

        JButton refreshButton = new JButton("Refresh");
        refreshButton.addActionListener(new ActionListener()
        {
            @Override
            public void actionPerformed(ActionEvent e)
            {
                receive(mProcessingChain);
            }
        });
        buttonPanel.add(refreshButton);

        add(buttonPanel, "wrap");

        mDetailTextPane = new JTextArea(EMPTY_DETAILS);
        DefaultCaret caret = (DefaultCaret)mDetailTextPane.getCaret();
        caret.setUpdatePolicy(DefaultCaret.NEVER_UPDATE);
        add(new JScrollPane(mDetailTextPane));
    }

    @Override
    public void receive(ProcessingChain processingChain)
    {
        mProcessingChain = processingChain;

        Channel channel = mChannelProcessingManager.getChannel(processingChain);

        final String system = channel != null ? channel.getSystem() : null;
        final String site = channel != null ? channel.getSite() : null;
        final String name = channel != null ?
            (channel.getChannelType() == Channel.ChannelType.TRAFFIC ? "Traffic Channel" : channel.getName()) : null;

        final String details;

        if(processingChain != null)
        {
            StringBuilder sb = new StringBuilder();

            for(DecoderState decoderState : processingChain.getDecoderStates())
            {
                sb.append(decoderState.getActivitySummary());
            }

            details = sb.toString();
        }
        else
        {
            details = EMPTY_DETAILS;
        }

        EventQueue.invokeLater(new Runnable()
        {
            @Override
            public void run()
            {
                mSystemLabel.setText(system);
                mSiteLabel.setText(site);
                mNameLabel.setText(name);
                mDetailTextPane.setText(details);
            }
        });
    }
}