/*
 * Copyright 2000-2014 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 org.jetbrains.plugins.coursecreator.actions;

import com.intellij.ide.IdeView;
import com.intellij.ide.projectView.ProjectView;
import com.intellij.ide.util.DirectoryChooserUtil;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.actionSystem.CommonDataKeys;
import com.intellij.openapi.actionSystem.LangDataKeys;
import com.intellij.openapi.actionSystem.Presentation;
import com.intellij.openapi.project.DumbAwareAction;
import com.intellij.openapi.project.Project;
import com.intellij.psi.PsiDirectory;
import com.intellij.psi.PsiFile;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.plugins.coursecreator.CCProjectService;
import org.jetbrains.plugins.coursecreator.format.Course;

import javax.swing.*;

public abstract class CCRename extends DumbAwareAction {
  public CCRename(String text, String description, Icon icon) {
    super(text, description, icon);
  }

  @Override
  public void update(@NotNull AnActionEvent event) {
    final Presentation presentation = event.getPresentation();
    final Project project = event.getData(CommonDataKeys.PROJECT);
    if (project == null) {
      presentation.setVisible(false);
      presentation.setEnabled(false);
      return;
    }

    final IdeView view = event.getData(LangDataKeys.IDE_VIEW);
    if (view == null) {
      presentation.setVisible(false);
      presentation.setEnabled(false);
      return;
    }

    final PsiDirectory[] directories = view.getDirectories();
    if (directories.length == 0) {
      presentation.setVisible(false);
      presentation.setEnabled(false);
      return;
    }
    final PsiFile file = CommonDataKeys.PSI_FILE.getData(event.getDataContext());
    final PsiDirectory directory = DirectoryChooserUtil.getOrChooseDirectory(view);
    if (file != null ||directory == null || !directory.getName().contains(getFolderName())) {
      presentation.setEnabled(false);
      presentation.setVisible(false);
      return;
    }
    presentation.setVisible(true);
    presentation.setEnabled(true);
  }

  public abstract String getFolderName();

  @Override
  public void actionPerformed(@NotNull AnActionEvent e) {
    final IdeView view = e.getData(LangDataKeys.IDE_VIEW);
    final Project project = e.getData(CommonDataKeys.PROJECT);

    if (view == null || project == null) {
      return;
    }
    final PsiDirectory directory = DirectoryChooserUtil.getOrChooseDirectory(view);
    if (directory == null || !directory.getName().contains(getFolderName())) {
      return;
    }
    Course course = CCProjectService.getInstance(project).getCourse();
    if (course == null) {
      return;
    }
    if (!processRename(project, directory, course)) return;
    ProjectView.getInstance(project).refresh();
  }

  public abstract boolean processRename(Project project, PsiDirectory directory, Course course);
}