Copyright (c) 2014, 2015 IBM Corporation and others.
This program and the accompanying materials
are made available under the terms of the Eclipse Public License 2.0
which accompanies this distribution, and is available at
https://www.eclipse.org/legal/epl-2.0/
SPDX-License-Identifier: EPL-2.0
Contributors:
    IBM Corporation - initial API and implementation
/*******************************************************************************
 * Copyright (c) 2014, 2015 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jdt.internal.launching;

import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;

import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.eclipse.jdt.launching.ILibraryLocationResolver;

public class JavaFxLibraryResolver implements ILibraryLocationResolver {

	public static final String JFXRT_JAR = "jfxrt.jar"; //$NON-NLS-1$
	private static final String JAVAFX_SRC_ZIP = "javafx-src.zip"; //$NON-NLS-1$
	private static final String JAVAFX_8_JAVADOC = "http://docs.oracle.com/javase/8/javafx/api/"; //$NON-NLS-1$

	private static boolean isJavaFx(IPath libraryPath) {
		return JFXRT_JAR.equals(libraryPath.lastSegment());
	}

	@Override
	public IPath getPackageRoot(IPath libraryPath) {
		return Path.EMPTY;
	}

	@Override
	public IPath getSourcePath(IPath libraryPath) {
		if (isJavaFx(libraryPath)) {
			File parent = libraryPath.toFile().getParentFile();
			while (parent != null) {
				File parentsrc = new File(parent, JAVAFX_SRC_ZIP);
				if (parentsrc.isFile()) {
					return new Path(parentsrc.getPath());
				}
				parent = parent.getParentFile();
			}
		}
		return Path.EMPTY;
	}

	@Override
	public URL getJavadocLocation(IPath libraryPath) {
		if (isJavaFx(libraryPath)) {
			/*
			 * TODO: We don't know if JavaSE-9 will ship JavaFX in the ext folder as well. If yes, then we have to use something like
			 * JavaRuntime#getVMInstall(IPath) and IVMInstall2#getJavaVersion() to determine the right Javadoc URL.
			 */
			try {
				return new URL(JAVAFX_8_JAVADOC);
			}
			catch (MalformedURLException e) {
				LaunchingPlugin.log(e);
			}
		}
		return null;
	}

	@Override
	public URL getIndexLocation(IPath libraryPath) {
		return null;
	}
}