/*
 * BridJ - Dynamic and blazing-fast native interop for Java.
 * http://bridj.googlecode.com/
 *
 * Copyright (c) 2010-2013, Olivier Chafik (http://ochafik.com/)
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of Olivier Chafik nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY OLIVIER CHAFIK AND CONTRIBUTORS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.bridj;
import static org.bridj.Pointer.*;
import org.junit.Test;
import org.bridj.ann.Runtime;
import static org.junit.Assert.*;

import org.bridj.ann.Library;

@Library("test")
@Runtime(CRuntime.class)
public class CallbackTest {
	static {
		BridJ.register();
	}
	
    @Test
    public void deleteTest() {
        MyCallback cb = new MyCallback() {
            @Override
            public int doSomething(int a, int b) {
                throw new UnsupportedOperationException("Not supported yet.");
            }
        };

        getPointer(cb).release();
    }
	@Test
	public void testJavaTargetIntCallbacks() {
		assertEquals(3, forwardCall(new MyCallback() {
			@Override
			public int doSomething(int a, int b) {
				return a + b;
			}
		}.toPointer(), 1, 2));
		
		assertEquals(21, forwardCall(new MyCallback() {
			@Override
			public int doSomething(int a, int b) {
				return a + b * 10;
			}
		}.toPointer(), 1, 2));
	}
	
	@Test
	public void testNativeTargetIntCallbacks() {
		MyCallback adder = getAdder().getNativeObject(MyCallback.class);
		assertEquals(3, adder.doSomething(1, 2));
	}
	
	static native int forwardCall(Pointer<MyCallback> cb, int a, int b);
	static native Pointer<MyCallback> getAdder();
	
	public static abstract class MyCallback extends Callback {
		public abstract int doSomething(int a, int b); 
	}
	
	
	
	
	@Test
	public void testJavaTargetPtrCallbacks() {
		assertEquals(3, forwardPtrCall(new MyPtrCallback() {
			@Override
			public Pointer doSomething(Pointer a, Pointer b) {
				return pointerToAddress(a.getPeer() + b.getPeer());
			}
		}.toPointer(), pointerToAddress(1), pointerToAddress(2)).getPeer());
		
		Pointer<Integer> pa = pointerToInt(1), pb = pointerToInt(2);
		
		assertEquals(4, forwardPtrCall(new MyPtrCallback() {
			@Override
			public Pointer<?> doSomething(Pointer<?> a, Pointer<?> b) {
				return pointerToInt(a.as(int.class).get() + b.as(int.class).get() + 1);
				//return pointerToInt(a.getInt() + b.getInt() + 1);
			}
		}.toPointer(), pa, pb).as(int.class).getInt()); // .get());
	}
	
	@Test
	public void testNativeTargetPtrCallbacks() {
		MyPtrCallback adder = getPtrAdder().getNativeObject(MyPtrCallback.class);
		assertEquals(3, adder.doSomething((Pointer)pointerToAddress(1), (Pointer)pointerToAddress(2)).getPeer());
	}
	static native Pointer<?> forwardPtrCall(Pointer<MyPtrCallback> cb, Pointer<?> a, Pointer<?> b);
	static native Pointer<MyPtrCallback> getPtrAdder();
	
	public static abstract class MyPtrCallback extends Callback {
		public abstract Pointer<?> doSomething(Pointer<?> a, Pointer<?> b); 
	}
	
	
}
