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/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2018, 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.test.security.common.elytron;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import org.jboss.as.test.integration.management.util.CLIWrapper;

/**
 * A {@link ConfigurableElement} to add a custom module.
 *
 * @author Darran Lofthouse
 */
public class Module extends AbstractConfigurableElement {

    private final List resources;
    private final List dependencies;

    Module(Builder builder) {
        super(builder);
        this.resources = builder.resources;
        this.dependencies = builder.dependencies;
    }

    @Override
    public void create(CLIWrapper cli) throws Exception {
        StringBuilder moduleAddCommand = new StringBuilder("module add --name=")
                .append(name);

        if (resources.size() > 0) {
            moduleAddCommand.append(" --resources=");
            Iterator resourcesIterator = resources.iterator();
            moduleAddCommand.append(resourcesIterator.next());
            while (resourcesIterator.hasNext()) {
                moduleAddCommand.append(",").append(resourcesIterator.next());
            }
        }

        if (dependencies.size() > 0) {
            moduleAddCommand.append(" --dependencies=");
            Iterator dependenciesIterator = dependencies.iterator();
            moduleAddCommand.append(dependenciesIterator.next());
            while (dependenciesIterator.hasNext()) {
                moduleAddCommand.append(",").append(dependenciesIterator.next());
            }
        }

        cli.sendLine(moduleAddCommand.toString(), true);
    }

    @Override
    public void remove(CLIWrapper cli) throws Exception {
        String moduleRemove = "module remove --name=" + name;

        cli.sendLine(moduleRemove, true);
    }


    /**
     * Create a new Builder instance.
     *
     * @return a new Builder instance.
     */
    public static Builder builder() {
        return new Builder();
    }

    /**
     * Builder to build a module registration.
     */
    public static final class Builder extends AbstractConfigurableElement.Builder {

        private List resources = new ArrayList<>();
        private List dependencies = new ArrayList<>();

        /**
         * Add a resource to be referenced by the module.
         *
         * @param resource a resource to be referenced by the module.
         * @return this {@link Builder} to allow method chaining.
         */
        public Builder withResource(final String resource) {
            resources.add(resource);

            return this;
        }

        /**
         * Add a dependency to be referenced by the module.
         *
         * @param dependency a dependency to be referenced by the module.
         * @return this {@link Builder} to allow method chaining.
         */
        public Builder withDependency(final String dependency) {
            dependencies.add(dependency);

            return this;
        }

        /**
         * Build an instance of {@link Module}
         *
         * @return an instance of {@link Module}
         */
        public Module build() {
            return new Module(this);
        }

        @Override
        protected Builder self() {
            return this;
        }

    }
}