/*
* Copyright 2008 (C) Thomas Parker <thpr@users.sourceforge.net>
*
* 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 plugin.lsttokens;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.StringTokenizer;
import java.util.TreeSet;
import pcgen.base.lang.StringUtil;
import pcgen.base.util.HashMapToList;
import pcgen.base.util.MapToList;
import pcgen.cdom.base.AssociatedPrereqObject;
import pcgen.cdom.base.CDOMObject;
import pcgen.cdom.base.CDOMReference;
import pcgen.cdom.base.Constants;
import pcgen.cdom.base.Ungranted;
import pcgen.cdom.reference.CDOMDirectSingleRef;
import pcgen.cdom.reference.ReferenceUtilities;
import pcgen.core.Vision;
import pcgen.core.prereq.Prerequisite;
import pcgen.rules.context.AssociatedChanges;
import pcgen.rules.context.LoadContext;
import pcgen.rules.persistence.token.AbstractTokenWithSeparator;
import pcgen.rules.persistence.token.CDOMPrimaryToken;
import pcgen.rules.persistence.token.ComplexParseResult;
import pcgen.rules.persistence.token.ParseResult;
/**
* {@code VisionLst} handles the processing of the VISION tag in LST
* code.
*
* (Sun, 15 Jun 2008) $
*
* @author Devon Jones
*/
public class VisionLst extends AbstractTokenWithSeparator<CDOMObject> implements
CDOMPrimaryToken<CDOMObject>
{
/**
* @see pcgen.persistence.lst.LstToken#getTokenName()
*/
@Override
public String getTokenName()
{
return "VISION";
}
@Override
protected char separator()
{
return '|';
}
@Override
protected ParseResult parseTokenWithSeparator(LoadContext context,
CDOMObject obj, String value)
{
if (obj instanceof Ungranted)
{
return new ParseResult.Fail("Cannot use " + getTokenName()
+ " on an Ungranted object type: "
+ obj.getClass().getSimpleName(), context);
}
StringTokenizer aTok = new StringTokenizer(value, Constants.PIPE);
String visionString = aTok.nextToken();
if (looksLikeAPrerequisite(visionString))
{
return new ParseResult.Fail(
"Cannot have only PRExxx subtoken in " + getTokenName()
+ ": " + value, context);
}
ArrayList<AssociatedPrereqObject> edgeList = new ArrayList<>();
boolean foundClear = false;
while (true)
{
if (Constants.LST_DOT_CLEAR.equals(visionString))
{
context.getListContext().removeAllFromList(getTokenName(), obj,
Vision.VISIONLIST);
foundClear = true;
}
else if (visionString.startsWith(Constants.LST_DOT_CLEAR_DOT))
{
try
{
Vision vis = Vision.getVision(visionString.substring(7));
context.getListContext().removeFromList(getTokenName(),
obj, Vision.VISIONLIST,
new CDOMDirectSingleRef<>(vis));
}
catch (IllegalArgumentException e)
{
ComplexParseResult cpr = new ComplexParseResult();
cpr.addErrorMessage(
"Bad Syntax for Cleared Vision in "
+ getTokenName());
cpr.addErrorMessage(e.getMessage());
return cpr;
}
foundClear = true;
}
else if (looksLikeAPrerequisite(visionString))
{
break;
}
else
{
try
{
Vision vision = Vision.getVision(visionString);
AssociatedPrereqObject edge = context.getListContext()
.addToList(getTokenName(), obj, Vision.VISIONLIST,
new CDOMDirectSingleRef<>(vision));
edgeList.add(edge);
}
catch (IllegalArgumentException e)
{
ComplexParseResult cpr = new ComplexParseResult();
cpr.addErrorMessage(
"Bad Syntax for Vision in " + getTokenName());
cpr.addErrorMessage(e.getMessage());
return cpr;
}
}
if (!aTok.hasMoreTokens())
{
return ParseResult.SUCCESS;
}
visionString = aTok.nextToken();
}
if (foundClear)
{
return new ParseResult.Fail(
"Cannot use PREREQs when using .CLEAR or .CLEAR. in "
+ getTokenName(), context);
}
while (true)
{
Prerequisite prereq = getPrerequisite(visionString);
if (prereq == null)
{
return new ParseResult.Fail(
" (Did you put vision after the " + "PRExxx tags in "
+ getTokenName() + ":?)", context);
}
for (AssociatedPrereqObject edge : edgeList)
{
edge.addPrerequisite(prereq);
}
if (!aTok.hasMoreTokens())
{
break;
}
visionString = aTok.nextToken();
}
return ParseResult.SUCCESS;
}
@Override
public String[] unparse(LoadContext context, CDOMObject obj)
{
AssociatedChanges<CDOMReference<Vision>> changes = context
.getListContext().getChangesInList(getTokenName(), obj,
Vision.VISIONLIST);
List<String> list = new ArrayList<>();
Collection<CDOMReference<Vision>> removedItems = changes.getRemoved();
if (changes.includesGlobalClear())
{
if (removedItems != null && !removedItems.isEmpty())
{
context.addWriteMessage("Non-sensical relationship in "
+ getTokenName()
+ ": global .CLEAR and local .CLEAR. performed");
return null;
}
list.add(Constants.LST_DOT_CLEAR);
}
else if (removedItems != null && !removedItems.isEmpty())
{
list.add(Constants.LST_DOT_CLEAR_DOT
+ ReferenceUtilities
.joinLstFormat(removedItems, "|.CLEAR."));
}
MapToList<CDOMReference<Vision>, AssociatedPrereqObject> mtl = changes
.getAddedAssociations();
if (mtl != null && !mtl.isEmpty())
{
MapToList<Set<Prerequisite>, Vision> m = new HashMapToList<>();
for (CDOMReference<Vision> ab : mtl.getKeySet())
{
for (AssociatedPrereqObject assoc : mtl.getListFor(ab))
{
m.addAllToListFor(new HashSet<>(assoc
.getPrerequisiteList()), ab.getContainedObjects());
}
}
Set<String> set = new TreeSet<>();
for (Set<Prerequisite> prereqs : m.getKeySet())
{
StringBuilder sb = new StringBuilder(StringUtil.join(m
.getListFor(prereqs), Constants.PIPE));
if (prereqs != null && !prereqs.isEmpty())
{
sb.append(Constants.PIPE);
sb.append(getPrerequisiteString(context, prereqs));
}
set.add(sb.toString());
}
list.addAll(set);
}
if (list.isEmpty())
{
return null;
}
return list.toArray(new String[list.size()]);
}
@Override
public Class<CDOMObject> getTokenClass()
{
return CDOMObject.class;
}
}