/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2017, Red Hat, Inc., and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.wildfly.extension.undertow;

import io.undertow.predicate.Predicate;
import io.undertow.predicate.Predicates;
import org.jboss.as.controller.AbstractAddStepHandler;
import org.jboss.as.controller.CapabilityServiceBuilder;
import org.jboss.as.controller.OperationContext;
import org.jboss.as.controller.OperationFailedException;
import org.jboss.as.controller.PathAddress;
import org.jboss.as.controller.services.path.PathManager;
import org.jboss.as.controller.services.path.PathManagerService;
import org.jboss.dmr.ModelNode;
import org.jboss.msc.service.ServiceController;
import org.xnio.XnioWorker;

/**
 * @author <a href="mailto:tomaz.cerar@redhat.com">Tomaz Cerar</a> (c) 2013 Red Hat Inc.
 */
class AccessLogAdd extends AbstractAddStepHandler {

    private AccessLogAdd() {
        super(AccessLogDefinition.ATTRIBUTES);
    }

    static final AccessLogAdd INSTANCE = new AccessLogAdd();

    @Override
    protected void performRuntime(OperationContext context, ModelNode operation, ModelNode model) throws OperationFailedException {

        final PathAddress address = context.getCurrentAddress();
        final PathAddress hostAddress = address.getParent();
        final PathAddress serverAddress = hostAddress.getParent();
        final String worker = AccessLogDefinition.WORKER.resolveModelAttribute(context, model).asString();
        final String pattern = AccessLogDefinition.PATTERN.resolveModelAttribute(context, model).asString();
        final String directory = AccessLogDefinition.DIRECTORY.resolveModelAttribute(context, model).asString();
        final String filePrefix = AccessLogDefinition.PREFIX.resolveModelAttribute(context, model).asString();
        final String fileSuffix = AccessLogDefinition.SUFFIX.resolveModelAttribute(context, model).asString();
        final boolean useServerLog = AccessLogDefinition.USE_SERVER_LOG.resolveModelAttribute(context, model).asBoolean();
        final boolean rotate = AccessLogDefinition.ROTATE.resolveModelAttribute(context, model).asBoolean();
        final boolean extended = AccessLogDefinition.EXTENDED.resolveModelAttribute(context, model).asBoolean();
        final ModelNode relativeToNode = AccessLogDefinition.RELATIVE_TO.resolveModelAttribute(context, model);
        final String relativeTo = relativeToNode.isDefined() ? relativeToNode.asString() : null;

        Predicate predicate = null;
        ModelNode predicateNode = AccessLogDefinition.PREDICATE.resolveModelAttribute(context, model);
        if(predicateNode.isDefined()) {
            predicate = Predicates.parse(predicateNode.asString(), getClass().getClassLoader());
        }

        final AccessLogService service;
        if (useServerLog) {
            service = new AccessLogService(pattern, extended, predicate);
        } else {
            service = new AccessLogService(pattern, directory, relativeTo, filePrefix, fileSuffix, rotate, extended, predicate);
        }

        final String serverName = serverAddress.getLastElement().getValue();
        final String hostName = hostAddress.getLastElement().getValue();

        final CapabilityServiceBuilder<AccessLogService> builder = context.getCapabilityServiceTarget().addCapability(AccessLogDefinition.ACCESS_LOG_CAPABILITY, service)
                .addCapabilityRequirement(Capabilities.REF_IO_WORKER, XnioWorker.class, service.getWorker(), worker)
                .addDependency(PathManagerService.SERVICE_NAME, PathManager.class, service.getPathManager())
                .addCapabilityRequirement(Capabilities.CAPABILITY_HOST, Host.class, service.getHost(), serverName, hostName);
        //only for backward compatibility
        builder.addAliases(UndertowService.accessLogServiceName(serverName, hostName));

        builder.setInitialMode(ServiceController.Mode.ACTIVE)
                .install();
    }
}