/*
 * Copyright 2007-2008 Dave Griffith
 *
 * 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 org.jetbrains.plugins.groovy.codeInspection.naming;

import com.intellij.codeInsight.intention.preview.IntentionPreviewInfo;
import com.intellij.codeInspection.ProblemDescriptor;
import com.intellij.codeInspection.RefactoringQuickFix;
import com.intellij.openapi.project.Project;
import com.intellij.psi.PsiClass;
import com.intellij.psi.PsiElement;
import com.intellij.psi.util.PsiTreeUtil;
import com.intellij.refactoring.RefactoringActionHandler;
import com.intellij.refactoring.RefactoringActionHandlerFactory;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.plugins.groovy.GroovyBundle;
import org.jetbrains.plugins.groovy.GroovyFileType;
import org.jetbrains.plugins.groovy.codeInspection.GroovyFix;

public class GrRenameFix extends GroovyFix implements RefactoringQuickFix {

  public GrRenameFix() {
    super();
  }

  @Override
  public @NotNull IntentionPreviewInfo generatePreview(@NotNull Project project, @NotNull ProblemDescriptor previewDescriptor) {
    final PsiElement element = previewDescriptor.getPsiElement();
    PsiClass psiClass = PsiTreeUtil.getParentOfType(element, PsiClass.class);
    if (psiClass == null) return IntentionPreviewInfo.EMPTY;
    String textBefore = psiClass.getText();
    psiClass.setName("NewCustomName");
    String textAfter = psiClass.getText();
    return new IntentionPreviewInfo.CustomDiff(GroovyFileType.GROOVY_FILE_TYPE, textBefore, textAfter);
  }

  @Override
  public @NotNull String getFamilyName() {
    return GroovyBundle.message("intention.family.name.rename");
  }

  @Override
  public void doFix(final @NotNull Project project, @NotNull ProblemDescriptor descriptor) {
    final PsiElement element = descriptor.getPsiElement();
    doFix(element);
  }

  @Override
  public @NotNull RefactoringActionHandler getHandler() {
    return RefactoringActionHandlerFactory.getInstance().createRenameHandler();
  }
}
