/*
 * Copyright (c) 2017, 2017, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package com.oracle.svm.jni.nativeapi;

import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Collections;
import java.util.List;

import org.graalvm.compiler.serviceprovider.JavaVersionUtil;
import org.graalvm.nativeimage.c.CContext;

import com.oracle.svm.core.OS;

public class JNIHeaderDirectives implements CContext.Directives {

    private final Path jdkIncludeDir = JavaVersionUtil.JAVA_SPEC <= 8
                    ? Paths.get(System.getProperty("java.home")).getParent().resolve("include")
                    : Paths.get(System.getProperty("java.home")).resolve("include");

    @Override
    public List<String> getHeaderFiles() {
        return Collections.singletonList("\"" + jdkIncludeDir.resolve("jni.h") + "\"");
    }

    @Override
    public List<String> getOptions() {
        return Collections.singletonList("-I" + jdkIncludeDir.resolve(OS.getCurrent() == OS.WINDOWS ? "win32" : OS.getCurrent().asPackageName()));
    }
}