/*
 * Copyright (c) 2026 Contributors to the Eclipse Foundation.
 * Copyright (c) 2017, 2020 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package ee.jakarta.tck.security.test;

import java.io.IOException;
import java.util.Map;

import javax.security.auth.Subject;
import javax.security.auth.callback.CallbackHandler;

import jakarta.enterprise.context.spi.CreationalContext;
import jakarta.enterprise.inject.spi.Bean;
import jakarta.enterprise.inject.spi.BeanManager;
import jakarta.enterprise.inject.spi.CDI;
import jakarta.security.auth.message.AuthException;
import jakarta.security.auth.message.AuthStatus;
import jakarta.security.auth.message.MessageInfo;
import jakarta.security.auth.message.MessagePolicy;
import jakarta.security.auth.message.module.ServerAuthModule;
import jakarta.security.enterprise.authentication.mechanism.http.HttpAuthenticationMechanism;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;

public class TestServerAuthModule implements ServerAuthModule {

    @Override
    public void initialize(MessagePolicy requestPolicy, MessagePolicy responsePolicy, CallbackHandler handler, @SuppressWarnings("rawtypes") Map options) throws AuthException {
    }

    @Override
    public Class<?>[] getSupportedMessageTypes() {
        return new Class<?>[] { HttpServletRequest.class, HttpServletResponse.class };
    }

    @Override
    public AuthStatus validateRequest(MessageInfo messageInfo, Subject clientSubject, Subject serviceSubject) throws AuthException {

        BeanManager bm = CDI.current().getBeanManager();

        @SuppressWarnings("unchecked")
        Bean<HttpAuthenticationMechanism> bean = (Bean<HttpAuthenticationMechanism>)
                bm.getBeans(HttpAuthenticationMechanism.class).iterator().next();
        CreationalContext<HttpAuthenticationMechanism> ctx = bm.createCreationalContext(bean);
        HttpAuthenticationMechanism ham =
                (HttpAuthenticationMechanism) bm.getReference(bean, HttpAuthenticationMechanism.class, ctx);

        if (ham != null) {
            HttpServletResponse response = (HttpServletResponse) messageInfo.getResponseMessage();
            try {
                response.getWriter().println(
                        "The CDI services is fully available, ServerAuthModule method can obtain bean through CDI.");
            } catch (IOException e) {
                throw new IllegalStateException(e);
            }
        }

        return AuthStatus.SUCCESS;
    }

    @Override
    public AuthStatus secureResponse(MessageInfo messageInfo, Subject serviceSubject) throws AuthException {
        return AuthStatus.SEND_SUCCESS;
    }

    @Override
    public void cleanSubject(MessageInfo messageInfo, Subject subject) throws AuthException {
    }

}
