/*
 * 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.
 */
package org.apache.qpid.protonj2.test.driver.actions;

import java.util.Map;

import org.apache.qpid.protonj2.test.driver.AMQPTestDriver;
import org.apache.qpid.protonj2.test.driver.LinkTracker;
import org.apache.qpid.protonj2.test.driver.SessionTracker;
import org.apache.qpid.protonj2.test.driver.codec.primitives.Symbol;
import org.apache.qpid.protonj2.test.driver.codec.primitives.UnsignedInteger;
import org.apache.qpid.protonj2.test.driver.codec.transport.Flow;

/**
 * AMQP Flow injection action which can be added to a driver for write at a specific time or
 * following on from some other action in the test script.
 */
public class FlowInjectAction extends AbstractPerformativeInjectAction<Flow> {

    private final Flow flow = new Flow();

    private boolean explicitlyNullHandle;

    public FlowInjectAction(AMQPTestDriver driver) {
        super(driver);
    }

    @Override
    public Flow getPerformative() {
        return flow;
    }

    public FlowInjectAction withNextIncomingId(long nextIncomingId) {
        flow.setNextIncomingId(UnsignedInteger.valueOf(nextIncomingId));
        return this;
    }

    public FlowInjectAction withNextIncomingId(UnsignedInteger nextIncomingId) {
        flow.setNextIncomingId(nextIncomingId);
        return this;
    }

    public FlowInjectAction withIncomingWindow(long incomingWindow) {
        flow.setIncomingWindow(UnsignedInteger.valueOf(incomingWindow));
        return this;
    }

    public FlowInjectAction withIncomingWindow(UnsignedInteger incomingWindow) {
        flow.setIncomingWindow(incomingWindow);
        return this;
    }

    public FlowInjectAction withNextOutgoingId(long nextOutgoingId) {
        flow.setNextOutgoingId(UnsignedInteger.valueOf(nextOutgoingId));
        return this;
    }

    public FlowInjectAction withNextOutgoingId(UnsignedInteger nextOutgoingId) {
        flow.setNextOutgoingId(nextOutgoingId);
        return this;
    }

    public FlowInjectAction withOutgoingWindow(long outgoingWindow) {
        flow.setOutgoingWindow(UnsignedInteger.valueOf(outgoingWindow));
        return this;
    }

    public FlowInjectAction withOutgoingWindow(UnsignedInteger outgoingWindow) {
        flow.setOutgoingWindow(outgoingWindow);
        return this;
    }

    public FlowInjectAction withHandle(long handle) {
        flow.setHandle(UnsignedInteger.valueOf(handle));
        return this;
    }

    public FlowInjectAction withHandle(UnsignedInteger handle) {
        explicitlyNullHandle = handle == null;
        flow.setHandle(handle);
        return this;
    }

    public FlowInjectAction withNullHandle() {
        explicitlyNullHandle = true;
        flow.setHandle(null);
        return this;
    }

    public FlowInjectAction withDeliveryCount(long deliveryCount) {
        flow.setDeliveryCount(UnsignedInteger.valueOf(deliveryCount));
        return this;
    }

    public FlowInjectAction withDeliveryCount(UnsignedInteger deliveryCount) {
        flow.setDeliveryCount(deliveryCount);
        return this;
    }

    public FlowInjectAction withLinkCredit(long linkCredit) {
        flow.setLinkCredit(UnsignedInteger.valueOf(linkCredit));
        return this;
    }

    public FlowInjectAction withLinkCredit(UnsignedInteger linkCredit) {
        flow.setLinkCredit(linkCredit);
        return this;
    }

    public FlowInjectAction withAvailable(long available) {
        flow.setAvailable(UnsignedInteger.valueOf(available));
        return this;
    }

    public FlowInjectAction withAvailable(UnsignedInteger available) {
        flow.setAvailable(available);
        return this;
    }

    public FlowInjectAction withDrain(boolean drain) {
        flow.setDrain(drain);
        return this;
    }

    public FlowInjectAction withEcho(boolean echo) {
        flow.setEcho(echo);
        return this;
    }

    public FlowInjectAction withProperties(Map<Symbol, Object> properties) {
        flow.setProperties(properties);
        return this;
    }

    @Override
    protected void beforeActionPerformed(AMQPTestDriver driver) {
        final SessionTracker session = driver.sessions().getLastLocallyOpenedSession();
        final LinkTracker link = session.getLastOpenedLink();

        // We fill in a channel using the next available channel id if one isn't set, then
        // report the outbound begin to the session so it can track this new session.
        if (onChannel() == CHANNEL_UNSET) {
            onChannel(session.getLocalChannel().intValue());
        }

        // Auto select last opened sender on last opened session.  Later an option could
        // be added to allow forcing the handle to be null for testing specification requirements.
        if (flow.getHandle() == null && !explicitlyNullHandle) {
            flow.setHandle(link.getHandle());
        }
        if (flow.getIncomingWindow() == null) {
            flow.setIncomingWindow(session.getLocalBegin().getIncomingWindow());
        }
        if (flow.getNextIncomingId() == null) {
            flow.setNextIncomingId(session.getNextIncomingId());
        }
        if (flow.getNextOutgoingId() == null) {
            flow.setNextOutgoingId(session.getLocalBegin().getNextOutgoingId());
        }
        if (flow.getOutgoingWindow() == null) {
            flow.setOutgoingWindow(session.getLocalBegin().getOutgoingWindow());
        }
    }
}

@@ -5380,130 +5380,219 @@
 sion
-.  Later an option could%0A        // be added to allow forcing the handle to be null for testing specification requirements
+, unless there's no links opened%0A        // in which case we can assume this is session only flow.  Also check if the test scripted%0A        // this as null which indicates the test is trying to send session only
 .%0A  
@@ -5646,24 +5646,40 @@
 lyNullHandle
+ && link != null
 ) %7B%0A        

Add additional check to allow session with no links to script a flow