/*
 * AllBufferSet.java - All buffer matcher
 * :tabSize=4:indentSize=4:noTabs=false:
 * :folding=explicit:collapseFolds=1:
 *
 * Copyright (C) 1999, 2000, 2001 Slava Pestov
 *
 * 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 2
 * of the License, or 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

package org.gjt.sp.jedit.search;

//{{{ Imports
import java.awt.Component;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Pattern;
import org.gjt.sp.jedit.*;
import org.gjt.sp.util.Log;
import org.gjt.sp.util.StandardUtilities;

import static org.gjt.sp.util.StandardUtilities.EMPTY_STRING_ARRAY;
//}}}

/**
 * A file set for searching all open buffers in a view.
 * @author Slava Pestov
 * @version $Id: AllBufferSet.java 25108 2020-03-31 22:41:49Z kpouer $
 */
public class AllBufferSet extends BufferListSet
{
	//{{{ AllBufferSet constructor
	/**
	 * Creates a view buffer set.
	 * @param glob The filename glob
	 * @param view The view to check for open buffers
	 * @since jEdit 5.1pre1
	 */
	public AllBufferSet(String glob, View view)
	{
		this.glob = glob;
		this.view = view;
	} //}}}
	
	//{{{ getView() method
	/** @since jEdit 5.1pre1 */
	public View getView() 
	{
		return view;
	}//}}}
	
	//{{{ getFileFilter() method
	/**
	 * Returns the filename filter.
	 * @since jEdit 2.7pre3
	 */
	public String getFileFilter()
	{
		return glob;
	} //}}}

	//{{{ getCode() method
	/**
	 * Returns the BeanShell code that will recreate this file set.
	 * @since jEdit 2.7pre3
	 */
	@Override
	public String getCode()
	{
		return "new AllBufferSet(\"" + StandardUtilities.charsToEscapes(glob) 
		+ "\", view)";
	} //}}}

	//{{{ Instance variables
	private final String glob;
	private final View view;
	//}}}

	//{{{ _getFiles() method
	@Override
	protected String[] _getFiles(Component comp)
	{
		Buffer[] buffers = view.getBuffers();
		List<String> returnValue = new ArrayList<>(buffers.length);

		Pattern filter;
		try
		{
			filter = Pattern.compile(StandardUtilities.globToRE(glob),
				Pattern.CASE_INSENSITIVE);
		}
		catch(Exception e)
		{
			Log.log(Log.ERROR,this, "Error compiling Glob Pattern: " + glob, e);
			return null;
		}

		for (Buffer buffer : buffers)
		{
			if (filter.matcher(buffer.getName()).matches())
				returnValue.add(buffer.getPath());
		}

		return returnValue.toArray(EMPTY_STRING_ARRAY);
	} //}}}
}
