/*
 * Copyright 2016 The Bazel Authors. All rights reserved.
 *
 * 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 com.google.idea.blaze.java.libraries;

import com.google.idea.blaze.base.actions.BlazeAction;
import com.google.idea.blaze.base.ideinfo.LibraryArtifact;
import com.google.idea.blaze.java.sync.model.BlazeLibrary;
import com.google.idea.blaze.java.sync.projectstructure.LibraryEditor;
import com.intellij.CommonBundle;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.actionSystem.Presentation;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.roots.impl.libraries.ProjectLibraryTable;
import com.intellij.openapi.roots.libraries.Library;
import com.intellij.openapi.roots.libraries.LibraryTable;
import com.intellij.openapi.ui.Messages;
import org.jetbrains.annotations.NotNull;

public class AttachSourceJarAction extends BlazeAction {
  @Override
  public void actionPerformed(AnActionEvent e) {
    Project project = e.getProject();
    assert project != null;
    Library library = LibraryActionHelper.findLibraryForAction(e);
    if (library != null) {
      BlazeLibrary blazeLibrary = LibraryActionHelper.findLibraryFromIntellijLibrary(project, library);
      if (blazeLibrary == null) {
        Messages.showErrorDialog(project, "Could not find this library in the project.", CommonBundle.getErrorTitle());
        return;
      }

      final LibraryArtifact libraryArtifact = blazeLibrary.getLibraryArtifact();
      if (libraryArtifact == null) {
        return;
      }
      if (libraryArtifact.sourceJar == null) {
        return;
      }
      SourceJarManager sourceJarManager = SourceJarManager.getInstance(project);
      boolean attachSourceJar = !sourceJarManager.hasSourceJarAttached(blazeLibrary.getKey());
      sourceJarManager.setHasSourceJarAttached(blazeLibrary.getKey(), attachSourceJar);

      ApplicationManager.getApplication().runWriteAction(() -> {
        LibraryTable libraryTable = ProjectLibraryTable.getInstance(project);
        LibraryTable.ModifiableModel libraryTableModel =
          libraryTable.getModifiableModel();
        LibraryEditor.updateLibrary(libraryTable, libraryTableModel, blazeLibrary, attachSourceJar);
        libraryTableModel.commit();
      });
    }
  }

  @Override
  protected void doUpdate(@NotNull AnActionEvent e) {
    Presentation presentation = e.getPresentation();
    String text = "Attach Source Jar";
    boolean visible = false;
    boolean enabled = false;
    Project project = e.getProject();
    if (project != null) {
      Library library = LibraryActionHelper.findLibraryForAction(e);
      if (library != null) {
        visible = true;

        BlazeLibrary blazeLibrary = LibraryActionHelper.findLibraryFromIntellijLibrary(e.getProject(), library);
        if (blazeLibrary != null && blazeLibrary.getLibraryArtifact() != null && blazeLibrary.getLibraryArtifact().sourceJar != null) {
          enabled = true;
          if (SourceJarManager.getInstance(project).hasSourceJarAttached(blazeLibrary.getKey())) {
            text = "Detach Source Jar";
          }
        }
      }
    }
    presentation.setVisible(visible);
    presentation.setEnabled(enabled);
    presentation.setText(text);
  }
}