/*
* Copyright 2013-2017 consulo.io
*
* 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 consulo.csharp.ide.actions.generate;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.jetbrains.annotations.NotNull;
import consulo.annotations.RequiredDispatchThread;
import consulo.annotations.RequiredReadAction;
import consulo.csharp.ide.actions.generate.memberChoose.CSharpVariableChooseObject;
import consulo.csharp.ide.actions.generate.memberChoose.ConstructorChooseMember;
import consulo.csharp.lang.psi.CSharpFieldDeclaration;
import consulo.csharp.lang.psi.CSharpFileFactory;
import consulo.csharp.lang.psi.CSharpPropertyDeclaration;
import consulo.csharp.lang.psi.CSharpTypeDeclaration;
import consulo.csharp.lang.psi.impl.resolve.CSharpResolveContextUtil;
import consulo.csharp.lang.psi.impl.source.CSharpTypeDeclarationImplUtil;
import consulo.csharp.lang.psi.impl.source.resolve.AsPsiElementProcessor;
import consulo.csharp.lang.psi.impl.source.resolve.CSharpResolveOptions;
import consulo.csharp.lang.psi.impl.source.resolve.ExecuteTarget;
import consulo.csharp.lang.psi.impl.source.resolve.MemberResolveScopeProcessor;
import consulo.csharp.lang.psi.impl.source.resolve.util.CSharpResolveUtil;
import consulo.csharp.lang.psi.resolve.CSharpElementGroup;
import consulo.csharp.lang.psi.resolve.CSharpResolveContext;
import consulo.csharp.lang.psi.resolve.StaticResolveSelectors;
import consulo.dotnet.psi.DotNetConstructorDeclaration;
import consulo.dotnet.psi.DotNetLikeMethodDeclaration;
import consulo.dotnet.psi.DotNetTypeDeclaration;
import consulo.dotnet.psi.DotNetVariable;
import consulo.dotnet.resolve.DotNetGenericExtractor;
import com.intellij.codeInsight.CodeInsightActionHandler;
import com.intellij.ide.util.MemberChooser;
import com.intellij.ide.util.MemberChooserBuilder;
import com.intellij.openapi.command.WriteCommandAction;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.Pair;
import com.intellij.psi.PsiDocumentManager;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import com.intellij.psi.PsiParserFacade;
import com.intellij.psi.ResolveState;
import com.intellij.psi.codeStyle.CodeStyleManager;
import com.intellij.util.Function;
import com.intellij.util.Processor;
import com.intellij.util.containers.ContainerUtil;
/**
* @author VISTALL
* @since 25.06.14
*/
public class GenerateConstructorHandler implements CodeInsightActionHandler
{
@RequiredDispatchThread
@Override
public void invoke(@NotNull Project project, @NotNull Editor editor, @NotNull PsiFile file)
{
PsiDocumentManager.getInstance(project).commitAllDocuments();
final CSharpTypeDeclaration typeDeclaration = CSharpGenerateAction.findTypeDeclaration(editor, file);
if(typeDeclaration == null)
{
return;
}
Pair<DotNetTypeDeclaration, DotNetGenericExtractor> pair = CSharpTypeDeclarationImplUtil.resolveBaseType(typeDeclaration, typeDeclaration);
if(pair == null)
{
return;
}
final DotNetTypeDeclaration baseType = pair.getFirst();
if(!(baseType instanceof CSharpTypeDeclaration))
{
return;
}
AsPsiElementProcessor psiElementProcessor = new AsPsiElementProcessor();
MemberResolveScopeProcessor memberResolveScopeProcessor = new MemberResolveScopeProcessor(CSharpResolveOptions.build().element(typeDeclaration), psiElementProcessor,
new ExecuteTarget[]{ExecuteTarget.ELEMENT_GROUP});
ResolveState resolveState = ResolveState.initial();
resolveState = resolveState.put(CSharpResolveUtil.SELECTOR, StaticResolveSelectors.CONSTRUCTOR_GROUP);
resolveState = resolveState.put(CSharpResolveUtil.EXTRACTOR, pair.getSecond());
CSharpResolveUtil.walkChildren(memberResolveScopeProcessor, baseType, false, false, resolveState);
List<ConstructorChooseMember> members = new ArrayList<ConstructorChooseMember>();
for(PsiElement psiElement : psiElementProcessor.getElements())
{
if(psiElement instanceof CSharpElementGroup)
{
for(PsiElement element : ((CSharpElementGroup<?>) psiElement).getElements())
{
members.add(new ConstructorChooseMember((DotNetConstructorDeclaration) element));
}
}
}
final ConstructorChooseMember[] map = ContainerUtil.toArray(members, ConstructorChooseMember.ARRAY_FACTORY);
if(map.length == 1)
{
generateConstructor(typeDeclaration, editor, file, map[0]);
}
else
{
final MemberChooserBuilder<ConstructorChooseMember> builder = new MemberChooserBuilder<ConstructorChooseMember>(project);
builder.setTitle("Choose Constructor");
builder.allowMultiSelection(true);
final MemberChooser<ConstructorChooseMember> memberChooser = builder.createBuilder(map);
if(!memberChooser.showAndGet())
{
return;
}
final List<ConstructorChooseMember> selectedElements = memberChooser.getSelectedElements();
if(selectedElements == null)
{
return;
}
for(ConstructorChooseMember selectedElement : selectedElements)
{
generateConstructor(typeDeclaration, editor, file, selectedElement);
}
}
}
@RequiredReadAction
private static void generateConstructor(@NotNull final CSharpTypeDeclaration typeDeclaration,
@NotNull final Editor editor,
@NotNull final PsiFile file,
@NotNull ConstructorChooseMember chooseMember)
{
CSharpResolveContext context = CSharpResolveContextUtil.createContext(DotNetGenericExtractor.EMPTY, typeDeclaration.getResolveScope(), typeDeclaration);
final List<DotNetVariable> fieldOrProperties = new ArrayList<DotNetVariable>();
context.processElements(new Processor<PsiElement>()
{
@Override
public boolean process(PsiElement psiElement)
{
if(psiElement instanceof CSharpElementGroup)
{
((CSharpElementGroup) psiElement).process(this);
}
if(psiElement instanceof CSharpFieldDeclaration || psiElement instanceof CSharpPropertyDeclaration)
{
fieldOrProperties.add((DotNetVariable) psiElement);
}
return true;
}
}, false);
List<CSharpVariableChooseObject> additionalParameters = Collections.emptyList();
if(!fieldOrProperties.isEmpty())
{
final MemberChooserBuilder<CSharpVariableChooseObject> builder = new MemberChooserBuilder<CSharpVariableChooseObject>(typeDeclaration.getProject());
builder.setTitle("Choose Fields or Properties");
builder.allowMultiSelection(true);
builder.allowEmptySelection(true);
List<CSharpVariableChooseObject> map = ContainerUtil.map(fieldOrProperties, new Function<DotNetVariable, CSharpVariableChooseObject>()
{
@Override
public CSharpVariableChooseObject fun(DotNetVariable variable)
{
return new CSharpVariableChooseObject(variable);
}
});
MemberChooser<CSharpVariableChooseObject> fieldChooser = builder.createBuilder(ContainerUtil.toArray(map, CSharpVariableChooseObject.ARRAY_FACTORY));
if(!fieldChooser.showAndGet())
{
return;
}
additionalParameters = fieldChooser.getSelectedElements();
assert additionalParameters != null;
}
String text = chooseMember.getText(additionalParameters);
text = text.replace("$NAME$", typeDeclaration.getName());
final DotNetLikeMethodDeclaration method = CSharpFileFactory.createMethod(typeDeclaration.getProject(), text);
final int offset = editor.getCaretModel().getOffset();
final PsiElement elementAt = file.findElementAt(offset);
assert elementAt != null;
new WriteCommandAction.Simple<Object>(file.getProject(), file)
{
@Override
protected void run() throws Throwable
{
final PsiElement psiElement = typeDeclaration.addAfter(method, elementAt);
typeDeclaration.addAfter(PsiParserFacade.SERVICE.getInstance(file.getProject()).createWhiteSpaceFromText("\n"), psiElement);
PsiDocumentManager.getInstance(getProject()).commitDocument(editor.getDocument());
CodeStyleManager.getInstance(getProject()).reformat(psiElement);
}
}.execute();
}
@Override
public boolean startInWriteAction()
{
return false;
}
}