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/****************************************************************************
**
** Copyright (C) 1992-2009 Nokia. All rights reserved.
** Copyright (C) 2009-2021 Dr. Peter Droste, Omix Visualization GmbH & Co. KG. All rights reserved.
**
** This file is part of Qt Jambi.
**
** ** $BEGIN_LICENSE$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
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** 
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
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** Foundation and appearing in the file LICENSE.LGPL included in the
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package io.qt.internal.fileengine;

import java.util.Collection;
import java.util.List;

import io.qt.QtUninvokable;
import io.qt.core.QFileInfo;
import io.qt.core.internal.QAbstractFileEngine;
import io.qt.core.internal.QAbstractFileEngineIterator;
import io.qt.core.QDir.Filters;

@Deprecated
class QClassPathFileEngineIterator extends QAbstractFileEngineIterator {
    private List entries = null;
    private int entriesCount;
    private int index;

    public QClassPathFileEngineIterator(String path, Filters filters, Collection nameFilters) {
        super(filters, nameFilters);

        index = -1;
        QAbstractFileEngine engine = QAbstractFileEngine.create(path);
        entries = engine.entryList(filters, nameFilters);
		if(entries!=null){
	        entriesCount = entries.size();
		}else{
			entriesCount = -1;
		}
    }


    @Override
    public String currentFileName() {
		if(entries==null || index >= entriesCount){
            return null;
		}
		// this is necessary because currentFileName() is sometimes called before next(). So, the first entry must be current at startup.
		if(index<0){
			index=0;
		}
        return entries.get(index);
    }

    @Override
    public boolean hasNext() {
		return index < entriesCount - 1;
    }

    @Override
    public String next() {
        if(!hasNext())
            return null;
        index++;
        String n = currentFilePath();
        return n;
    }

	@Override
	@QtUninvokable
	public QFileInfo currentFileInfo() {
		return new QFileInfo(currentFilePath());
	}
}