/**
 * The MIT License (MIT)
 *
 * Copyright (c) 2014-2017 Yegor Bugayenko
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package org.takes.facets.auth;

import java.io.IOException;
import java.util.Map;
import lombok.EqualsAndHashCode;
import org.takes.Request;
import org.takes.rs.xe.XeSource;
import org.takes.rs.xe.XeWrap;
import org.xembly.Directive;
import org.xembly.Directives;

/**
 * Xembly source to show authenticated identity.
 *
 * <p>The class is immutable and thread-safe.
 *
 * @author Yegor Bugayenko (yegor256@gmail.com)
 * @version $Id: c1228ee466e996d02f8fa8fa25da8ff349325cad $
 * @since 0.4
 */
@EqualsAndHashCode(callSuper = true)
public final class XeIdentity extends XeWrap {

    /**
     * Ctor.
     * @param req Request
     */
    public XeIdentity(final Request req) {
        super(
            new XeSource() {
                @Override
                public Iterable<Directive> toXembly() throws IOException {
                    final Identity identity = new RqAuth(req).identity();
                    final Directives dirs = new Directives();
                    if (!identity.equals(Identity.ANONYMOUS)) {
                        dirs.add("identity")
                            .add("urn").set(identity.urn()).up();
                        for (final Map.Entry<String, String> prop
                            : identity.properties().entrySet()) {
                            dirs.add(prop.getKey()).set(prop.getValue()).up();
                        }
                    }
                    return dirs;
                }
            }
        );
    }

}