/*******************************************************************************
 * Copyright (c) 2000, 2006 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package descent.core.ddoc;


import java.io.IOException;
import java.io.Reader;


/**
 * Provides a set of convenience methods for creating HTML pages.
 */
public class HTMLPrinterUtils {

	protected HTMLPrinterUtils() {
	}

	public static String convertToHTMLContent(String content) {
		content = content.replace("&", "&");
		content = content.replace("\"", """);
		content = content.replace("<", "<");
		return content.replace(">", ">");
	}

	public static String read(Reader rd) {

		StringBuffer buffer= new StringBuffer();
		char[] readBuffer= new char[2048];

		try {
			int n= rd.read(readBuffer);
			while (n > 0) {
				buffer.append(readBuffer, 0, n);
				n= rd.read(readBuffer);
			}
			return buffer.toString();
		} catch (IOException x) {
		}

		return null;
	}

	
	

	public static void insertStyles(StringBuffer buffer, String[] styles) {
		if (styles == null || styles.length == 0)
			return;

		StringBuffer styleBuf= new StringBuffer(10 * styles.length);
		for (int i= 0; styles != null && i < styles.length; i++) {
			styleBuf.append(" style=\""); //$NON-NLS-1$
			styleBuf.append(styles[i]);
			styleBuf.append('"');
		}

		// Find insertion index
		int index= buffer.indexOf("<body "); //$NON-NLS-1$
		if (index == -1)
			return;

		buffer.insert(index+5, styleBuf);
	}

	public static void startBulletList(StringBuffer buffer) {
		buffer.append("<ul>"); //$NON-NLS-1$
	}

	public static void endBulletList(StringBuffer buffer) {
		buffer.append("</ul>"); //$NON-NLS-1$
	}

	public static void addBullet(StringBuffer buffer, String bullet) {
		if (bullet != null) {
			buffer.append("<li>"); //$NON-NLS-1$
			buffer.append(bullet);
			buffer.append("</li>"); //$NON-NLS-1$
		}
	}

	public static void addSmallHeader(StringBuffer buffer, String header) {
		if (header != null) {
			buffer.append("<h5>"); //$NON-NLS-1$
			buffer.append(header);
			buffer.append("</h5>"); //$NON-NLS-1$
		}
	}

	public static void addParagraph(StringBuffer buffer, String paragraph) {
		if (paragraph != null) {
			buffer.append("<p/>"); //$NON-NLS-1$
			buffer.append(paragraph);
		}
	}

	public static void addParagraph(StringBuffer buffer, Reader paragraphReader) {
		if (paragraphReader != null)
			addParagraph(buffer, read(paragraphReader));
	}
}