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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) [2019-2021] Payara Foundation and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://github.com/payara/Payara/blob/main/LICENSE.txt
 * See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * The Payara Foundation designates this particular file as subject to the "Classpath"
 * exception as provided by the Payara Foundation in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
 *
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 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
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 */

package fish.payara.docker.instance.admin;

import com.sun.enterprise.config.serverbeans.Node;
import com.sun.enterprise.config.serverbeans.Nodes;
import com.sun.enterprise.config.serverbeans.Server;
import com.sun.enterprise.config.serverbeans.Servers;
import org.glassfish.api.ActionReport;
import org.glassfish.api.Param;
import org.glassfish.api.admin.AdminCommand;
import org.glassfish.api.admin.AdminCommandContext;
import org.glassfish.api.admin.ExecuteOn;
import org.glassfish.api.admin.RestEndpoint;
import org.glassfish.api.admin.RestEndpoints;
import org.glassfish.api.admin.RuntimeType;
import org.glassfish.hk2.api.PerLookup;
import org.jvnet.hk2.annotations.Service;

import jakarta.inject.Inject;
import jakarta.ws.rs.client.Client;
import jakarta.ws.rs.client.ClientBuilder;
import jakarta.ws.rs.client.WebTarget;
import jakarta.ws.rs.core.MediaType;
import jakarta.ws.rs.core.Response;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 * Internal Asadmin command to delete a Docker container. This is used by the delete-instance command.
 *
 * @author Andrew Pielage
 */
@Service(name = "_delete-docker-container")
@PerLookup
@ExecuteOn({RuntimeType.DAS})
@RestEndpoints({
        @RestEndpoint(configBean = Server.class,
                opType = RestEndpoint.OpType.DELETE,
                path = "_delete-docker-container",
                description = "Deletes a Docker Container")
})
public class DeleteDockerContainerCommand implements AdminCommand {

    private static final Logger logger = Logger.getLogger(DeleteDockerContainerCommand.class.getName());

    @Param(name = "instanceName", alias = "instance", primary = true)
    private String instanceName;

    @Param(name = "nodeName", alias = "node")
    private String nodeName;

    @Inject
    Nodes nodes;

    @Inject
    Servers servers;

    @Override
    public void execute(AdminCommandContext adminCommandContext) {
        ActionReport actionReport = adminCommandContext.getActionReport();

        // Shouldn't need to check for presence of this nodeName, as its presence was checked for in DeleteInstanceCommand
        Node node = nodes.getNode(nodeName);
        Server server = servers.getServer(instanceName);

        Client client = ClientBuilder.newClient();
        WebTarget webTarget = null;
        if (Boolean.valueOf(node.getUseTls())) {
             webTarget = client.target("https://"
                    + node.getNodeHost()
                    + ":"
                    + node.getDockerPort()
                    + "/containers/"
                    + server.getDockerContainerId());
        } else {
            webTarget = client.target("http://"
                    + node.getNodeHost()
                    + ":"
                    + node.getDockerPort()
                    + "/containers/"
                    + server.getDockerContainerId());
        }

        Response response = null;
        try {
            response = webTarget.request(MediaType.APPLICATION_JSON).delete();
        } catch (Exception ex) {
            logger.log(Level.SEVERE, "Encountered an exception sending request to Docker: \n", ex);
        }

        if (response != null) {
            // Check status of response and act on result
            Response.StatusType responseStatus = response.getStatusInfo();
            if (responseStatus.getFamily().equals(Response.Status.Family.SUCCESSFUL)) {
                // woohoo
            } else {
                actionReport.failure(logger, "Failed to delete Docker Container, user action will be required: \n"
                        + responseStatus.getReasonPhrase());
            }
        } else {
            // If we don't have a response, clearly something has gone wrong
            actionReport.failure(logger, "Failed to delete Docker Container, user action will be required");
        }

    }
}