/*******************************************************************************
 * Copyright (c) 2011, 2021 SAP AG 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:
 *     Lazar Kirchev, SAP AG - initial API and implementation
 *******************************************************************************/

package org.eclipse.equinox.console.telnet;

import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

import java.io.OutputStream;
import java.io.PrintStream;
import java.net.Socket;
import java.util.Dictionary;

import org.apache.felix.service.command.CommandProcessor;
import org.apache.felix.service.command.CommandSession;
import org.eclipse.equinox.console.common.ConsoleInputStream;
import org.junit.Test;
import org.osgi.framework.BundleContext;

public class TelnetCommandTests {

	private static final int TEST_CONTENT = 100;
	private static final String TELNET_PORT_PROP_NAME = "osgi.console";
	private static final String USE_CONFIG_ADMIN_PROP = "osgi.console.useConfigAdmin";
	private static final String STOP_COMMAND = "stop";
	private static final String HOST = "localhost";
	private static final String FALSE = "false";
	private static final int TELNET_PORT = 2223;
	private static final long WAIT_TIME = 5000;

	@Test
	public void testTelnetCommand() throws Exception {
		try (CommandSession session = mock(CommandSession.class)) {
			when(session.execute(any(String.class))).thenReturn(new Object());

			CommandProcessor processor = mock(CommandProcessor.class);
			when(processor.createSession(any(ConsoleInputStream.class), any(PrintStream.class), any(PrintStream.class)))
					.thenReturn(session);

			BundleContext context = mock(BundleContext.class);
			when(context.getProperty(USE_CONFIG_ADMIN_PROP)).thenReturn(FALSE);
			when(context.getProperty(TELNET_PORT_PROP_NAME)).thenReturn(Integer.toString(TELNET_PORT));
			when(context.registerService(any(String.class), any(), any(Dictionary.class))).thenReturn(null);

			TelnetCommand command = new TelnetCommand(processor, context);
			command.startService();

			try (Socket socketClient = new Socket(HOST, TELNET_PORT);) {
				OutputStream outClient = socketClient.getOutputStream();
				outClient.write(TEST_CONTENT);
				outClient.write('\n');
				outClient.flush();

				// wait for the accept thread to finish execution
				try {
					Thread.sleep(WAIT_TIME);
				} catch (InterruptedException ie) {
					// do nothing
				}
			} finally {
				command.telnet(new String[] { STOP_COMMAND });
			}
		}
	}
}
