/**
 * Copyright (C) 2009 - 2019 <a href="https://www.wudsn.com" target="_top">Peter Dell</a>
 *
 * This file is part of WUDSN IDE.
 * 
 * WUDSN IDE 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
 * (at your option) any later version.
 * 
 * WUDSN IDE 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 WUDSN IDE.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.wudsn.ide.base.editor.hex.parser;

import org.eclipse.jface.viewers.StyledString;

import com.wudsn.ide.base.Texts;
import com.wudsn.ide.base.editor.hex.HexEditorContentOutlineTreeObject;
import com.wudsn.ide.base.editor.hex.HexEditorParser;

public class C64PRGParser extends HexEditorParser {

    @Override
    public boolean parse(StyledString contentBuilder) {
	if (contentBuilder == null) {
	    throw new IllegalArgumentException("Parameter 'contentBuilder' must not be null.");
	}
	boolean error;
	int startAddress;
	int endAddress;

	int length = getFileContentLength();
	long offset = 0;

	error = (length < 2);
	if (!error) {
	    startAddress = getFileContentByte(offset + 0) + 256 * getFileContentByte(offset + 1);
	    endAddress = startAddress + length - 3;

	    HexEditorContentOutlineTreeObject treeObject;
	    treeObject = printBlockHeader(contentBuilder, Texts.HEX_EDITOR_C64_PRG_HEADER, -1,
		    Texts.HEX_EDITOR_C64_PRG_HEADER_PARAMETERS, offset, startAddress, endAddress);
	    offset = printBytes(treeObject, contentBuilder, offset, offset + 1, true, 0);

	    error = endAddress > 0xffff;
	    if (!error) {
		printBytes(treeObject, contentBuilder, offset, length - 1, true, startAddress);
	    }
	}
	if (error) {
	    printBlockWithError(contentBuilder, Texts.HEX_EDITOR_C64_PRG_ERROR, length, offset);
	}
	return error;
    }

}
