package com.badlogic.gdx.tests.gwt;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.nio.Buffer;
import java.nio.ByteBuffer;

import com.badlogic.gdx.Application.ApplicationType;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.tests.utils.GdxTest;
import com.badlogic.gdx.utils.BufferUtils;
import com.badlogic.gdx.utils.GdxRuntimeException;
import com.badlogic.gdx.utils.reflect.ClassReflection;

public class BufferUtilsIssueTest extends GdxTest {

// Needed to make the test work on gwt _and_ desktop
	private ByteBuffer getTestBuffer (int size) {
		if (Gdx.app.getType().equals(ApplicationType.WebGL)) {
			return BufferUtils.newByteBuffer(size);
		} else {
			com.badlogic.gdx.utils.reflect.Method bufferMethod = null;
			try {
				bufferMethod = ClassReflection.getMethod(BufferUtils.class, "newUnsafeByteBuffer", int.class);
				return (ByteBuffer)bufferMethod.invoke(null, size);
			} catch (Exception e) { // Who cares!
				e.printStackTrace();
			}
		}
		return null;
	}

	@Override
	public void create () {
		final ByteBuffer newByteBuffer = getTestBuffer(10);
		final byte[] src = new byte[] {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
		BufferUtils.copy(src, 0, newByteBuffer, 2);
		BufferUtils.copy(src, 2, newByteBuffer, 4);
	}
}