/*
* Copyright 2003-2015 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jetbrains.mps.nodeEditor.cellMenu;
import jetbrains.mps.openapi.editor.EditorContext;
import jetbrains.mps.openapi.editor.cells.DefaultSubstituteInfo;
import jetbrains.mps.openapi.editor.cells.EditorCell;
import jetbrains.mps.openapi.editor.cells.SubstituteAction;
import jetbrains.mps.scope.ErrorScope;
import jetbrains.mps.scope.ModelPlusImportedScope;
import jetbrains.mps.scope.Scope;
import jetbrains.mps.smodel.CopyUtil;
import jetbrains.mps.smodel.SModelUtil_new;
import jetbrains.mps.smodel.action.DefaultSReferenceSubstituteAction;
import jetbrains.mps.smodel.action.ModelActions;
import jetbrains.mps.smodel.constraints.ModelConstraints;
import jetbrains.mps.typesystem.inference.InequalitySystem;
import jetbrains.mps.typesystem.inference.TypeChecker;
import org.apache.log4j.LogManager;
import org.apache.log4j.Logger;
import org.jetbrains.mps.openapi.language.SAbstractConcept;
import org.jetbrains.mps.openapi.language.SConcept;
import org.jetbrains.mps.openapi.language.SLanguage;
import org.jetbrains.mps.openapi.language.SReferenceLink;
import org.jetbrains.mps.openapi.model.SNode;
import org.jetbrains.mps.openapi.model.SNodeUtil;
import org.jetbrains.mps.openapi.model.SReference;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
public class DefaultSReferenceSubstituteInfo extends AbstractNodeSubstituteInfo implements DefaultSubstituteInfo {
private SNode mySourceNode;
private SReferenceLink myLink;
private static final Logger LOG = LogManager.getLogger(DefaultSReferenceSubstituteInfo.class);
public DefaultSReferenceSubstituteInfo(final SNode sourceNode, final SReferenceLink link, final EditorContext editorContext) {
super(editorContext);
mySourceNode = sourceNode;
myLink = link;
}
@Override
protected InequalitySystem getInequalitiesSystem(EditorCell contextCell) {
HashMap<SNode, SNode> mapping = new HashMap<SNode, SNode>();
CopyUtil.copy(Arrays.asList(mySourceNode.getContainingRoot()), mapping).get(0);
SNode nodeToEquatePeer = mySourceNode;
TypeChecker typeChecker = TypeChecker.getInstance();
while (nodeToEquatePeer != null && typeChecker.getTypeOf(nodeToEquatePeer) == null) {
nodeToEquatePeer = nodeToEquatePeer.getParent();
}
if (nodeToEquatePeer == null) {
return null;
}
SNode nodeToEquate = mapping.get(nodeToEquatePeer);
SNode parent = nodeToEquate.getParent();
if (parent == null) {
return null;
}
SNode hole = SModelUtil_new.instantiateConceptDeclaration(jetbrains.mps.smodel.SNodeUtil.concept_BaseConcept, null, null, true);
SNodeUtil.replaceWithAnother(nodeToEquate, hole);
InequalitySystem inequalitiesForHole = TypeChecker.getInstance().getInequalitiesForHole(hole, false);
return inequalitiesForHole;
}
@Override
public List<SubstituteAction> createActions() {
SReference reference = mySourceNode.getReference(myLink);
return createActions(reference == null ? null : reference.getTargetNode());
}
private List<SubstituteAction> createActions(SNode targetNode) {
final SAbstractConcept referentConcept = myLink.getTargetConcept();
//todo use myLink.getScope
//Iterable<SNode> nodes = myLink.getScope(mySourceNode).getAvailableElements(null);
Scope scope = ModelConstraints.getReferenceDescriptor(mySourceNode, myLink).getScope();
Iterable<SNode> nodes;
if (!(scope instanceof ErrorScope)) {
nodes = scope.getAvailableElements(null);
} else {
nodes = new ModelPlusImportedScope(mySourceNode.getModel(), false, referentConcept).getAvailableElements(null);
}
List<SubstituteAction> actions = new ArrayList<>();
for (SNode node : nodes) {
if (node == null) {
continue;
}
assert node.getConcept().isSubConceptOf(referentConcept);
actions.add(new DefaultSReferenceSubstituteAction(node, mySourceNode, targetNode, myLink));
}
return actions;
}
}