content: /*
   * Copyright 2024-2025 the original author or authors.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     https://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.alibaba.cloud.ai.a2a.registry.nacos.service;
  
  import com.alibaba.cloud.ai.a2a.A2aServerProperties;
  import com.alibaba.cloud.ai.a2a.registry.nacos.properties.NacosA2aProperties;
  import com.alibaba.cloud.ai.a2a.registry.nacos.register.NacosA2aRegistryProperties;
  import com.alibaba.cloud.ai.a2a.registry.nacos.utils.AgentCardConverterUtil;
  import com.alibaba.nacos.api.ai.A2aService;
  import com.alibaba.nacos.api.ai.constant.AiConstants;
  import com.alibaba.nacos.api.ai.model.a2a.AgentCard;
  import com.alibaba.nacos.api.ai.model.a2a.AgentEndpoint;
  import com.alibaba.nacos.api.exception.NacosException;
  import com.alibaba.nacos.api.exception.runtime.NacosRuntimeException;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Nacos operation service for A2A.
   *
   * @author xiweng.yy
   */
  public class NacosA2aOperationService {
  
  	private static final Logger LOGGER = LoggerFactory.getLogger(NacosA2aOperationService.class);
  
  	private final A2aService a2aService;
  
  	private final NacosA2aProperties nacosA2aProperties;
  
  	private final A2aServerProperties a2aServerProperties;
  
  	private final NacosA2aRegistryProperties nacosA2aRegistryProperties;
  
  	public NacosA2aOperationService(A2aService a2aService, NacosA2aProperties nacosA2aProperties,
  			A2aServerProperties a2aServerProperties, NacosA2aRegistryProperties nacosA2aRegistryProperties) {
  		this.a2aService = a2aService;
  		this.nacosA2aProperties = nacosA2aProperties;
  		this.a2aServerProperties = a2aServerProperties;
  		this.nacosA2aRegistryProperties = nacosA2aRegistryProperties;
  	}
  
  	public void registerAgent(io.a2a.spec.AgentCard agentCard) {
  		AgentCard nacosAgentCard = AgentCardConverterUtil.convertToNacosAgentCard(agentCard);
  		try {
  			tryReleaseAgentCard(nacosAgentCard);
  			registerEndpoint(nacosAgentCard);
  		}
  		catch (NacosException e) {
  			LOGGER.error("Register agent card {} to Nacos failed,", agentCard.name(), e);
  			throw new NacosRuntimeException(e.getErrCode(), e.getErrMsg());
  		}
  	}
  
  	private void tryReleaseAgentCard(AgentCard agentCard) throws NacosException {
  		LOGGER.info("Register agent card {} to Nacos namespace {}. ", agentCard.getName(),
  				nacosA2aProperties.getNamespace());
  		a2aService.releaseAgentCard(agentCard, AiConstants.A2a.A2A_ENDPOINT_TYPE_SERVICE,
  				nacosA2aRegistryProperties.isRegisterAsLatest());
  		LOGGER.info("Register agent card {} to Nacos namespace {} successfully. ", agentCard.getName(),
  				nacosA2aProperties.getNamespace());
  	}
  
  	private void registerEndpoint(AgentCard agentCard) throws NacosException {
  		AgentEndpoint endpoint = new AgentEndpoint();
  		endpoint.setVersion(agentCard.getVersion());
  		endpoint.setPath(a2aServerProperties.getMessageUrl());
  		endpoint.setTransport(agentCard.getPreferredTransport());
  		endpoint.setAddress(a2aServerProperties.getAddress());
  		endpoint.setPort(a2aServerProperties.getPort());
  		a2aService.registerAgentEndpoint(agentCard.getName(), endpoint);
  	}
  
  }
  