/*
 * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 */

package org.opendaylight.protocol.pcep.impl;

import static org.mockito.Matchers.any;
import static org.mockito.Mockito.doAnswer;
import static org.mockito.Mockito.doReturn;
import static org.mockito.Mockito.mock;

import com.google.common.collect.Lists;
import io.netty.channel.Channel;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.DefaultChannelPromise;
import io.netty.channel.EventLoop;
import io.netty.util.concurrent.ScheduledFuture;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
import java.util.List;
import java.util.concurrent.TimeUnit;
import org.junit.Before;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.message.rev131007.Keepalive;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.message.rev131007.KeepaliveBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.message.rev131007.Open;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.message.rev131007.OpenBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.message.rev131007.Starttls;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.message.rev131007.StarttlsBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.keepalive.message.KeepaliveMessageBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.message.OpenMessageBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.start.tls.message.StartTlsMessageBuilder;
import org.opendaylight.yangtools.yang.binding.Notification;

public class AbstractPCEPSessionTest {

    protected static final String IP_ADDRESS = "127.0.0.1";
    protected static final short KEEP_ALIVE = 15;
    protected static final short DEADTIMER = 40;

    @Mock
    protected Channel channel;

    @Mock
    private EventLoop eventLoop;

    @Mock
    private ScheduledFuture<?> future;

    @Mock
    private ChannelPipeline pipeline;

    @Mock
    private SocketAddress address;

    protected final List<Notification> msgsSend = Lists.newArrayList();

    protected Open openMsg;

    protected Starttls startTlsMsg;

    protected Keepalive kaMsg;

    protected SimpleSessionListener listener;

    @Before
    public final void setUp() {
        MockitoAnnotations.initMocks(this);
        final ChannelFuture future = new DefaultChannelPromise(this.channel);
        doAnswer(new Answer<Object>() {
            @Override
            public Object answer(final InvocationOnMock invocation) {
                final Object[] args = invocation.getArguments();
                AbstractPCEPSessionTest.this.msgsSend.add((Notification) args[0]);
                return future;
            }
        }).when(this.channel).writeAndFlush(any(Notification.class));
        doReturn("TestingChannel").when(this.channel).toString();
        doReturn(this.pipeline).when(this.channel).pipeline();
        doReturn(this.address).when(this.channel).localAddress();
        doReturn(this.address).when(this.channel).remoteAddress();
        doReturn(this.eventLoop).when(this.channel).eventLoop();
        doReturn(true).when(this.future).cancel(false);
        doReturn(this.future).when(this.eventLoop).schedule(any(Runnable.class), any(long.class), any(TimeUnit.class));
        doReturn(this.pipeline).when(this.pipeline).replace(any(ChannelHandler.class), any(String.class), any(ChannelHandler.class));
        doReturn(this.pipeline).when(this.pipeline).addFirst(any(ChannelHandler.class));
        doReturn(true).when(this.channel).isActive();
        doReturn(mock(ChannelFuture.class)).when(this.channel).close();
        doReturn(new InetSocketAddress(IP_ADDRESS, 4189)).when(this.channel).remoteAddress();
        doReturn(new InetSocketAddress(IP_ADDRESS, 4189)).when(this.channel).localAddress();
        this.openMsg = new OpenBuilder().setOpenMessage(
                new OpenMessageBuilder().setOpen(
                        new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.object.OpenBuilder().setDeadTimer(
                                DEADTIMER).setKeepalive(KEEP_ALIVE).setSessionId((short) 0).build()).build()).build();
        this.kaMsg = new KeepaliveBuilder().setKeepaliveMessage(new KeepaliveMessageBuilder().build()).build();
        this.startTlsMsg = new StarttlsBuilder().setStartTlsMessage(new StartTlsMessageBuilder().build()).build();


        this.listener = new SimpleSessionListener();
    }

}