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/**
 *  BlueCove - Java library for Bluetooth
 *  Copyright (C) 2007-2009 Vlad Skarzhevskyy
 *
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you 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.
 *
 *  @author vlads
 *  @version $Id$
 */
package com.intel.bluetooth;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.Enumeration;

import javax.bluetooth.DataElement;
import javax.bluetooth.UUID;
import javax.bluetooth.ServiceRecord;

import junit.framework.TestCase;

/**
 * 
 */
public class SDPStreamTest extends TestCase {

	public static final String stringUTFData = "\u0413\u043E\u043B\u0443\u0431\u043E\u0439\u0417\u0443\u0431";

	protected void setUp() throws Exception {
		super.setUp();
		// System.getProperties().put("bluecove.debug", "true");
	}

	public static void assertEquals(String message, DataElement de1, DataElement de2) {
		if ((de1 == null) || (de2 == null)) {
			fail(message + "NULL elements");
		}
		assertEquals(message + "Type", de1.getDataType(), de2.getDataType());
		switch (de1.getDataType()) {
		case DataElement.U_INT_1:
		case DataElement.U_INT_2:
		case DataElement.U_INT_4:
		case DataElement.INT_1:
		case DataElement.INT_2:
		case DataElement.INT_4:
		case DataElement.INT_8:
			assertEquals(message + "long", de1.getLong(), de2.getLong());
			return;
		case DataElement.URL:
		case DataElement.STRING:
		case DataElement.UUID:
			assertEquals(message + "value", de1.getValue(), de2.getValue());
			return;
		case DataElement.INT_16:
		case DataElement.U_INT_8:
		case DataElement.U_INT_16:
			byte[] byteAray1 = (byte[]) de1.getValue();
			byte[] byteAray2 = (byte[]) de2.getValue();
			assertEquals(message + "length", byteAray1.length, byteAray2.length);
			for (int k = 0; k < byteAray1.length; k++) {
				assertEquals(message + "byteAray[" + k + "]", byteAray1[k], byteAray2[k]);
			}
			return;
		case DataElement.NULL:
			return;
		case DataElement.BOOL:
			assertEquals(message + "boolean", de1.getBoolean(), de2.getBoolean());
			return;
		case DataElement.DATSEQ:
		case DataElement.DATALT:
			int i = 0;
			Enumeration en1 = (Enumeration) de1.getValue();
			Enumeration en2 = (Enumeration) de2.getValue();
			for (; en1.hasMoreElements() && en2.hasMoreElements();) {
				DataElement d1 = (DataElement) en1.nextElement();
				DataElement d2 = (DataElement) en2.nextElement();
				assertEquals(message + "DataElement[" + i + "]", d1, d2);
				i++;
			}
			if (en1.hasMoreElements() || en2.hasMoreElements()) {
				fail(message + "unknown hasMoreElements");
			}
			return;
		default:
			fail(message + "unknown type");
		}
	}

	public static void assertEquals(String message, ServiceRecord sr1, ServiceRecord sr2) {
		int[] ids1 = sr1.getAttributeIDs();
		int[] ids2 = sr2.getAttributeIDs();
		if ((ids1 == null) || (ids2 == null)) {
			return;
		}
		assertNotNull(message + "sr1.getAttributeIDs", ids1);
		assertNotNull(message + "sr2.getAttributeIDs", ids2);
		assertEquals(message + "AttributeIDs length", ids1.length, ids2.length);

		for (int i = 0; i < ids1.length; i++) {
			assertEquals(message + " attr " + ids1[i], sr1.getAttributeValue(ids1[i]), sr2.getAttributeValue(ids1[i]));
		}
	}

	private DataElement doubleCovert(DataElement element) throws IOException {
		ByteArrayOutputStream out = new ByteArrayOutputStream();
		(new SDPOutputStream(out)).writeElement(element);
		byte blob[] = out.toByteArray();
		return (new SDPInputStream(new ByteArrayInputStream(blob))).readElement();
	}

	private void validateConversion(DataElement element) throws IOException {
		DataElement elementConverted = doubleCovert(element);
		boolean passed = false;
		try {
			assertEquals("", element, elementConverted);
			passed = true;
		} finally {
			if (!passed) {
				System.out.println("in  " + ((Object) element).toString());
				System.out.println("out " + ((Object) element).toString());
			}
		}
	}

	public void testInt() throws IOException {
		validateConversion(new DataElement(DataElement.U_INT_1, 1));
		validateConversion(new DataElement(DataElement.U_INT_2, 60));
		validateConversion(new DataElement(DataElement.U_INT_4, 77839));

		validateConversion(new DataElement(DataElement.INT_1, -7));
		validateConversion(new DataElement(DataElement.INT_2, -5));
		validateConversion(new DataElement(DataElement.INT_4, -25678));
		validateConversion(new DataElement(DataElement.INT_8, 998652497));

		validateConversion(new DataElement(DataElement.U_INT_1, 0));
		validateConversion(new DataElement(DataElement.U_INT_1, 0xBC));
		validateConversion(new DataElement(DataElement.U_INT_2, 0));
		validateConversion(new DataElement(DataElement.U_INT_2, 0xABCD));
		validateConversion(new DataElement(DataElement.U_INT_4, 0));
		validateConversion(new DataElement(DataElement.U_INT_4, 0xABCDEF40l));
		validateConversion(new DataElement(DataElement.INT_1, 0));
		validateConversion(new DataElement(DataElement.INT_1, 0x4C));
		validateConversion(new DataElement(DataElement.INT_1, -0x1E));
		validateConversion(new DataElement(DataElement.INT_2, 0));
		validateConversion(new DataElement(DataElement.INT_2, 0x5BCD));
		validateConversion(new DataElement(DataElement.INT_2, -0x7EFD));
		validateConversion(new DataElement(DataElement.INT_4, 0));
		validateConversion(new DataElement(DataElement.INT_4, 0x1BCDEF35l));
		validateConversion(new DataElement(DataElement.INT_4, -0x2BC7EF35l));
		validateConversion(new DataElement(DataElement.INT_8, 0));
		validateConversion(new DataElement(DataElement.INT_8, 0x3eC6EF355892EA8Cl));
		validateConversion(new DataElement(DataElement.INT_8, -0x7F893012AB39FB72l));

		validateConversion(new DataElement(DataElement.U_INT_8, new byte[] { 1, -2, 3, 4, -5, 6, 7, -8 }));
		validateConversion(new DataElement(DataElement.INT_16, new byte[] { 11, -22, 33, 44, -5, 6, 77, 88, 9, -10, 11,
				12, -13, 14, 15, 16 }));
		validateConversion(new DataElement(DataElement.U_INT_16, new byte[] { 21, -32, 43, 54, -65, 76, 87, 98, 11,
				-110, 111, 112, -113, 114, 115, 16 }));
	}

	public void testUUID() throws IOException {
		validateConversion(new DataElement(DataElement.UUID, new UUID("0100", true)));
		validateConversion(new DataElement(DataElement.UUID, new UUID("B10C0BE1111111111111111111110001", false)));

		// This is the same UUIDs
		validateConversion(new DataElement(DataElement.UUID, new UUID("0000110500001000800000805f9b34fb", false)));
		validateConversion(new DataElement(DataElement.UUID, new UUID(0x1105)));
		// UUID 32-bit
		validateConversion(new DataElement(DataElement.UUID, new UUID(0x21301107)));
	}

	public static String getLongString(int lenght) {
		StringBuffer b = new StringBuffer();
		b.append("b");
		for (int i = 0; i < lenght - 2; i++) {
			b.append("Z");
		}
		b.append("e");
		return b.toString();
	}

	public void testString() throws IOException {
		validateConversion(new DataElement(DataElement.STRING, ""));
		validateConversion(new DataElement(DataElement.STRING, "12345"));
		validateConversion(new DataElement(DataElement.STRING, stringUTFData));

		validateConversion(new DataElement(DataElement.STRING, getLongString(0x100 + 2)));
	}

	public void testDATSEQ() throws IOException {
		DataElement seq1 = new DataElement(DataElement.DATSEQ);
		seq1.addElement(new DataElement(DataElement.STRING, "BlueCove-seq1"));
		seq1.addElement(new DataElement(DataElement.U_INT_1, 0x12));
		seq1.addElement(new DataElement(DataElement.URL, "http://blueCove/"));
		seq1.addElement(new DataElement(DataElement.STRING, stringUTFData));
		seq1.addElement(new DataElement(DataElement.UUID, new UUID("B10C0BE1111111111111111111110001", false)));

		DataElement seq2 = new DataElement(DataElement.DATSEQ);
		seq2.addElement(new DataElement(DataElement.U_INT_8, new byte[] { 1, -2, 3, 4, -5, 6, 7, -8 }));
		seq2.addElement(new DataElement(DataElement.STRING, getLongString(0x100 + 2)));
		seq2.addElement(new DataElement(DataElement.U_INT_2, 0x14));

		DataElement seq3 = new DataElement(DataElement.DATSEQ);
		seq3.addElement(new DataElement(DataElement.U_INT_4, 0x15));
		seq3.addElement(new DataElement(DataElement.STRING, stringUTFData));
		seq3.addElement(new DataElement(DataElement.UUID, new UUID(0x1105)));
		seq3.addElement(new DataElement(DataElement.INT_8, 0x16));

		seq1.addElement(seq2);
		seq1.addElement(seq3);
		seq1.addElement(new DataElement(DataElement.INT_4, 0x1BCDEF35l));
		validateConversion(seq1);
	}

	public void testDATSEQ16() throws IOException {
		DataElement seq = new DataElement(DataElement.DATSEQ);
		// INT_8 = 9 bytes;
		int nElements = (0xFF / 9) + 1;
		for (int i = 0; i < nElements; i++) {
			seq.addElement(new DataElement(DataElement.INT_8, i));
		}
		int l = SDPOutputStream.getLength(seq);
		assertTrue("DATSEQ16 len(" + l + ")>0xFF", l > 0xFF);
		assertTrue("DATSEQ16 len(" + l + ")<0xFFFF", l < 0xFFFF);
		validateConversion(seq);
	}

	public void testDATSEQ32() throws IOException {
		DataElement seq = new DataElement(DataElement.DATSEQ);
		// INT_8 = 9 bytes;
		int nElements = (0xFFFF / 9) + 1;
		for (int i = 0; i < nElements; i++) {
			seq.addElement(new DataElement(DataElement.INT_8, i));
		}
		int l = SDPOutputStream.getLength(seq);
		assertTrue("DATSEQ32 len(" + l + ")>0xFFFF", l > 0xFFFF);
		validateConversion(seq);
	}

	public void testOtherAttributes() throws IOException {
		validateConversion(new DataElement(true));
		validateConversion(new DataElement(false));
		validateConversion(new DataElement(DataElement.NULL));
	}

	public void validateServiceRecordConvert(String message, ServiceRecordImpl serviceRecord) throws IOException {
		byte[] data = serviceRecord.toByteArray();
		ServiceRecordImpl serviceRecord2 = new ServiceRecordImpl(null, null, 0);
		serviceRecord2.loadByteArray(data);
		assertEquals(message, serviceRecord, serviceRecord2);
	}

	public void testServiceRecordConvertion() throws IOException {
		ServiceRecordImpl serviceRecord = new ServiceRecordImpl(null, null, 0);
		serviceRecord.populateL2CAPAttributes(1, 2, new UUID(3), "BBBB");
		validateServiceRecordConvert("L2CAP", serviceRecord);

		ServiceRecordImpl serviceRecord2 = new ServiceRecordImpl(null, null, 0);
		serviceRecord2.populateRFCOMMAttributes(1, 2, new UUID(3), "BBBB", true);
		validateServiceRecordConvert("RFCOMM", serviceRecord2);
	}
}