/*
 * Copyright (C) 2014 The Android Open Source Project
 *
 * 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.android.tools.idea.tests.gui.gradle;

import com.android.tools.idea.tests.gui.framework.GuiTestCase;
import com.android.tools.idea.tests.gui.framework.annotation.IdeGuiTest;
import com.android.tools.idea.tests.gui.framework.fixture.IdeFrameFixture;
import com.intellij.openapi.module.Module;
import com.intellij.openapi.roots.ContentEntry;
import com.intellij.openapi.roots.ModifiableRootModel;
import com.intellij.openapi.roots.ModuleRootManager;
import com.intellij.openapi.util.io.FileUtil;
import com.intellij.openapi.vfs.VirtualFile;
import org.fest.swing.edt.GuiActionRunner;
import org.fest.swing.edt.GuiQuery;
import org.junit.Test;

import java.io.File;
import java.io.IOException;

import static com.android.tools.idea.gradle.util.FilePaths.findParentContentEntry;
import static com.android.tools.idea.tests.gui.framework.GuiTests.getTestProjectsRootDirPath;
import static com.intellij.openapi.util.io.FileUtil.delete;
import static com.intellij.openapi.vfs.VfsUtil.findFileByIoFile;
import static com.intellij.openapi.vfs.VfsUtilCore.isAncestor;
import static junit.framework.Assert.assertNotNull;
import static junit.framework.Assert.assertTrue;
import static org.fest.assertions.Assertions.assertThat;

/**
 * Tests fix for issue <a href="https://code.google.com/p/android/issues/detail?id=74259">74259</a>.
 */
public class CentralBuildDirectoryTest extends GuiTestCase {

  @Test @IdeGuiTest
  public void testImportProjectWithCentralBuildDirectoryInRootModule() throws IOException {
    // In issue 74259, project sync fails because the "app" build directory is set to "CentralBuildDirectory/central/build", which is
    // outside the content root of the "app" module.
    String projectDirName = "CentralBuildDirectory";
    File projectPath = new File(getTestProjectsRootDirPath(), projectDirName);

    // The bug appears only when the central build folder does not exist.
    final File centralBuildDirPath = new File(projectPath, FileUtil.join("central", "build"));
    File centralBuildParentDirPath = centralBuildDirPath.getParentFile();
    delete(centralBuildParentDirPath);

    IdeFrameFixture ideFrame = importProject(projectDirName);
    final Module app = ideFrame.getModule("app");

    // Now we have to make sure that if project import was successful, the build folder (with custom path) is excluded in the IDE (to
    // prevent unnecessary file indexing, which decreases performance.)
    VirtualFile[] excludeFolders = GuiActionRunner.execute(new GuiQuery<VirtualFile[]>() {
      @Override
      protected VirtualFile[] executeInEDT() throws Throwable {
        ModuleRootManager moduleRootManager = ModuleRootManager.getInstance(app);
        ModifiableRootModel rootModel = moduleRootManager.getModifiableModel();
        try {
          ContentEntry[] contentEntries = rootModel.getContentEntries();
          ContentEntry parent = findParentContentEntry(centralBuildDirPath, contentEntries);
          assertNotNull(parent);
          return parent.getExcludeFolderFiles();
        }
        finally {
          rootModel.dispose();
        }
      }
    });

    assertThat(excludeFolders).isNotEmpty();

    VirtualFile centralBuildDir = findFileByIoFile(centralBuildParentDirPath, true);
    assertNotNull(centralBuildDir);
    boolean isExcluded = false;
    for (VirtualFile folder : excludeFolders) {
      if (isAncestor(centralBuildDir, folder, true)) {
        isExcluded = true;
        break;
      }
    }

    assertTrue(isExcluded);
  }
}