/*
 * Copyright 2008 (C) Tom Parker <thpr@users.sourceforge.net>
 * Derived from PObject.java
 * Copyright 2001 (C) Bryan McRoberts <merton_monk@yahoo.com>
 * 
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 * 
 * This library 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 Lesser General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
package pcgen.core.analysis;

import java.util.ArrayList;
import java.util.StringTokenizer;

import pcgen.cdom.base.CDOMObject;
import pcgen.cdom.enumeration.ObjectKey;
import pcgen.cdom.enumeration.StringKey;
import pcgen.core.PlayerCharacter;
import pcgen.core.SettingsHandler;

public class OutputNameFormatting
{

	public static String parseOutputName(CDOMObject po, PlayerCharacter aPC)
	{
		return parseOutputName(getOutputName(po), aPC);
	}

	/**
	 * Parse the output name to get a useable Name token
	 * @param aString
	 * @param aPC
	 * @return the output name to get a useable Name token
	 */
	private static String parseOutputName(final String aString, final PlayerCharacter aPC)
	{
		final int varIndex = aString.indexOf('|');
	
		if (varIndex <= 0)
		{
			return (aString);
		}
	
		final StringTokenizer varTokenizer = new StringTokenizer(aString, "|");
	
		final String preVarStr = varTokenizer.nextToken();
	
		final ArrayList<Float> varArray = new ArrayList<>();
		final ArrayList<String> tokenList = new ArrayList<>();
	
		while (varTokenizer.hasMoreElements())
		{
			final String token = varTokenizer.nextToken();
			tokenList.add(token.toUpperCase());
			varArray.add(aPC.getVariableValue(token, ""));
		}
	
		final StringBuilder result = new StringBuilder(50);
		int varCount = 0;
		int subIndex = preVarStr.indexOf('%');
		int lastIndex = 0;
	
		while (subIndex >= 0)
		{
			if (subIndex > 0)
			{
				result.append(preVarStr.substring(lastIndex, subIndex));
			}
	
			final String token = tokenList.get(varCount);
			final Float val = varArray.get(varCount);
	
			if (token.endsWith(".INTVAL"))
			{
				result.append(String.valueOf(val.intValue()));
			}
			else
			{
				result.append(val.toString());
			}
	
			lastIndex = subIndex + 1;
			varCount++;
			subIndex = preVarStr.indexOf('%', lastIndex);
		}
	
		if (preVarStr.length() > lastIndex)
		{
			result.append(preVarStr.substring(lastIndex));
		}
	
		return (result.toString());
	}

	/**
	 * Returns the Product Identity string (with or without the header)
	 * @param useHeader Should html start and end tags be added? 
	 * @return the Product Identity string (with or without the header)
	 */
	public static String piString(CDOMObject po, final boolean useHeader)
	{
		String aString = po.toString();
	
		if (SettingsHandler.guiUsesOutputNameEquipment())
		{
			aString = OutputNameFormatting.getOutputName(po);
		}
	
		if (po.getSafe(ObjectKey.NAME_PI))
		{
			final StringBuilder sb = new StringBuilder(aString.length() + 30);
	
			if (useHeader)
			{
				sb.append("<html>");
			}
	
			sb.append("<b><i>").append(aString).append("</i></b>");
	
			if (useHeader)
			{
				sb.append("</html>");
			}
	
			return sb.toString();
		}
	
		return aString;
	}

	/**
	 * rephrase parenthetical name components, if appropriate
	 * @return pre formatted output name
	 */
	private static String getPreFormatedOutputName(String displayName)
	{
		//if there are no () to pull from, just return the name
		if ((displayName.indexOf('(') < 0) || (displayName.indexOf(')') < 0))
		{
			return displayName;
		}
	
		//we just take from the first ( to the first ), typically there should only be one of each
		final String subName = displayName.substring(displayName.indexOf('(') + 1, displayName.lastIndexOf(')')); //the stuff inside the ()
		final StringTokenizer tok = new StringTokenizer(subName, "/");
		final StringBuilder newNameBuff = new StringBuilder(subName.length());
	
		while (tok.hasMoreTokens())
		{
			//build this new string from right to left
			newNameBuff.insert(0, tok.nextToken());
	
			if (tok.hasMoreTokens())
			{
				newNameBuff.insert(0, " ");
			}
		}
	
		return newNameBuff.toString();
	}

	/**
	 * Get the output name of the item
	 * @return the output name of the item
	 */
	public static String getOutputName(CDOMObject po)
	{
		String outputName = po.get(StringKey.OUTPUT_NAME);
		String displayName = po.getDisplayName();
		// if no OutputName has been defined, just return the regular name
		if (outputName == null)
		{
			return displayName;
		}
		else if (outputName.equalsIgnoreCase("[BASE]") && displayName.indexOf('(') != -1)
		{
			outputName = displayName.substring(0, displayName.indexOf('(')).trim();
		}
		if (outputName.indexOf("[NAME]") >= 0)
		{
			outputName = outputName.replaceAll("\\[NAME\\]",
					getPreFormatedOutputName(displayName));
		}
		return outputName;
	}

}