content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You 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
   *
   *      http://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 org.apache.camel.component.whatsapp;
  
  import java.net.http.HttpClient;
  import java.time.Duration;
  import java.util.List;
  
  import org.apache.camel.Category;
  import org.apache.camel.Component;
  import org.apache.camel.Consumer;
  import org.apache.camel.Processor;
  import org.apache.camel.Producer;
  import org.apache.camel.component.webhook.WebhookCapableEndpoint;
  import org.apache.camel.component.webhook.WebhookConfiguration;
  import org.apache.camel.component.whatsapp.service.WhatsAppServiceRestAPIAdapter;
  import org.apache.camel.spi.UriEndpoint;
  import org.apache.camel.spi.UriParam;
  import org.apache.camel.support.ScheduledPollEndpoint;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Send messages to WhatsApp.
   */
  @UriEndpoint(firstVersion = "3.19.0", scheme = "whatsapp", title = "WhatsApp", syntax = "whatsapp:phoneNumberId",
               producerOnly = true,
               category = {
                       Category.CLOUD, Category.API,
                       Category.CHAT },
               headersClass = WhatsAppConstants.class)
  public class WhatsAppEndpoint extends ScheduledPollEndpoint implements WebhookCapableEndpoint {
      private static final Logger LOG = LoggerFactory.getLogger(WhatsAppEndpoint.class);
  
      @UriParam
      private WhatsAppConfiguration configuration;
  
      @UriParam(label = "advanced", description = "HttpClient implementation")
      private HttpClient httpClient;
      @UriParam(label = "advanced", description = "WhatsApp service implementation")
      private WhatsAppService whatsappService;
  
      private WebhookConfiguration webhookConfiguration;
  
      public WhatsAppEndpoint(String endpointUri, Component component, WhatsAppConfiguration configuration, HttpClient client) {
          super(endpointUri, component);
          this.configuration = configuration;
          this.httpClient = client;
      }
  
      @Override
      protected void doStart() throws Exception {
          super.doStart();
          if (httpClient == null) {
              httpClient
                      = HttpClient.newBuilder().version(HttpClient.Version.HTTP_2).connectTimeout(Duration.ofSeconds(10)).build();
          }
          if (whatsappService == null) {
              whatsappService = new WhatsAppServiceRestAPIAdapter(
                      httpClient, configuration.getBaseUri(), configuration.getApiVersion(), configuration.getPhoneNumberId(),
                      configuration.getAuthorizationToken());
          }
          LOG.debug("client {}", httpClient);
          LOG.debug("whatsappService {}", whatsappService);
      }
  
      @Override
      protected void doStop() throws Exception {
          super.doStop();
          // ensure client is closed when stopping
          httpClient = null;
      }
  
      @Override
      public Producer createProducer() throws Exception {
          return new WhatsAppProducer(this);
      }
  
      @Override
      public Consumer createConsumer(Processor processor) throws Exception {
          throw new UnsupportedOperationException("consumer not supported");
      }
  
      @Override
      public Processor createWebhookHandler(Processor next) {
          return new WhatsAppWebhookProcessor(next, configuration);
      }
  
      @Override
      public List<String> getWebhookMethods() {
          return List.of("POST", "GET");
      }
  
      @Override
      public void registerWebhook() throws Exception {
      }
  
      @Override
      public void setWebhookConfiguration(WebhookConfiguration webhookConfiguration) {
          webhookConfiguration.setWebhookPath(configuration.getWebhookPath());
          this.webhookConfiguration = webhookConfiguration;
      }
  
      @Override
      public void unregisterWebhook() throws Exception {
      }
  
      public WhatsAppConfiguration getConfiguration() {
          return configuration;
      }
  
      public void setConfiguration(WhatsAppConfiguration configuration) {
          this.configuration = configuration;
      }
  
      public WhatsAppService getWhatsappService() {
          return whatsappService;
      }
  
      public void setWhatsappService(WhatsAppService whatsappService) {
          this.whatsappService = whatsappService;
      }
  
      public HttpClient getHttpClient() {
          return httpClient;
      }
  
      public void setHttpClient(HttpClient httpClient) {
          this.httpClient = httpClient;
      }
  
      public WebhookConfiguration getWebhookConfiguration() {
          return webhookConfiguration;
      }
  }
  