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.quarkus.component.rest.openapi.deployment;
  
  import java.io.IOException;
  import java.net.URI;
  import java.nio.file.Files;
  import java.nio.file.Path;
  import java.util.HashSet;
  import java.util.Optional;
  import java.util.Set;
  import java.util.stream.Stream;
  
  import io.quarkus.bootstrap.prebuild.CodeGenException;
  import io.quarkus.deployment.CodeGenContext;
  import io.quarkus.deployment.CodeGenProvider;
  import io.swagger.codegen.v3.ClientOptInput;
  import io.swagger.codegen.v3.CodegenArgument;
  import io.swagger.codegen.v3.CodegenConstants;
  import io.swagger.codegen.v3.DefaultGenerator;
  import io.swagger.codegen.v3.config.CodegenConfigurator;
  import org.eclipse.microprofile.config.Config;
  import org.jboss.logging.Logger;
  
  import static io.swagger.codegen.v3.generators.features.BeanValidationFeatures.USE_BEANVALIDATION;
  import static io.swagger.codegen.v3.generators.features.NotNullAnnotationFeatures.NOT_NULL_JACKSON_ANNOTATION;
  
  public class CamelQuarkusSwaggerCodegenProvider implements CodeGenProvider {
      private static final Logger LOG = Logger.getLogger(CamelQuarkusSwaggerCodegenProvider.class);
  
      @Override
      public String providerId() {
          return "camel-quarkus-rest-openapi";
      }
  
      @Override
      public String[] inputExtensions() {
          return new String[] { "json", "yaml" };
      }
  
      @Override
      public String inputDirectory() {
          return "openapi";
      }
  
      @Override
      public boolean shouldRun(Path sourceDir, Config config) {
          return Files.isDirectory(sourceDir)
                  || config.getOptionalValue("quarkus.camel.openapi.codegen.locations", String.class).isPresent();
      }
  
      @Override
      public boolean trigger(CodeGenContext context) throws CodeGenException {
          final Config config = context.config();
          if (!config.getValue("quarkus.camel.openapi.codegen.enabled", Boolean.class)) {
              LOG.info("Skipping " + this.getClass() + " invocation on user's request");
              return false;
          }
  
          try {
              Set<String> specFiles = new HashSet<>();
              if (Files.isDirectory(context.inputDir())) {
                  try (Stream<Path> protoFilesPaths = Files.walk(context.inputDir())) {
                      protoFilesPaths
                              .filter(Files::isRegularFile)
                              .filter(s -> s.toString().endsWith("json") || s.toString().endsWith("yaml"))
                              .map(Path::normalize)
                              .map(Path::toAbsolutePath)
                              .map(Path::toString)
                              .forEach(specFiles::add);
                  }
              }
  
              Optional<String> locations = config.getOptionalValue("quarkus.camel.openapi.codegen.locations", String.class);
              if (locations.isPresent()) {
                  for (String location : locations.get().split(",")) {
                      try {
                          URI uri;
                          if (location.indexOf("://") == -1) {
                              uri = Thread.currentThread().getContextClassLoader().getResource(location).toURI();
                          } else {
                              uri = new URI(location);
                          }
                          Path path = Path.of(uri);
                          specFiles.add(path.toAbsolutePath().toString());
                      } catch (Exception e) {
                          LOG.warnf(e, "Can not find location %s", location);
                      }
                  }
              }
  
              String packageName = config.getValue("quarkus.camel.openapi.codegen.model-package", String.class);
              String models = config.getOptionalValue("quarkus.camel.openapi.codegen.models", String.class).orElse("");
              boolean useBeanValidation = config.getValue("quarkus.camel.openapi.codegen.use-bean-validation", Boolean.class);
              boolean notNullJackson = config.getValue("quarkus.camel.openapi.codegen.not-null-jackson", Boolean.class);
              boolean ignoreUnknownProperties = config.getValue("quarkus.camel.openapi.codegen.ignore-unknown-properties",
                      Boolean.class);
  
              for (String specFile : specFiles) {
                  LOG.infof("Generating models for %s", specFile);
                  CodegenConfigurator configurator = new CodegenConfigurator();
                  configurator.setLang("quarkus");
                  configurator.setLibrary("quarkus3");
                  configurator.setModelPackage(packageName);
                  configurator.setInputSpecURL(specFile);
                  configurator.setOutputDir(context.outDir().toAbsolutePath().toString());
                  System.setProperty(CodegenConstants.MODELS, models);
                  configurator.getCodegenArguments()
                          .add(new CodegenArgument().option(CodegenConstants.API_DOCS_OPTION).type("boolean").value("false"));
                  configurator.getCodegenArguments()
                          .add(new CodegenArgument().option(CodegenConstants.MODEL_DOCS_OPTION).type("boolean").value("false"));
                  if (useBeanValidation) {
                      configurator.getAdditionalProperties().put(USE_BEANVALIDATION, true);
                  }
                  if (notNullJackson) {
                      configurator.getAdditionalProperties().put(NOT_NULL_JACKSON_ANNOTATION, true);
                  }
                  if (ignoreUnknownProperties) {
                      configurator.getAdditionalProperties().put("ignoreUnknownProperties", true);
                  }
                  config.getPropertyNames().forEach(name -> {
                      if (name.startsWith("quarkus.camel.openapi.codegen.additional-properties")) {
                          String key = name.substring("quarkus.camel.openapi.codegen.additional-properties.".length());
                          String value = config.getValue(name, String.class);
                          if (configurator.getAdditionalProperties().containsKey(key)) {
                              LOG.warn("Overriding existing property: " + key + " with value: " + value);
                          }
                          if (value.equals("true") || value.equals("false")) {
                              configurator.getAdditionalProperties().put(key, Boolean.parseBoolean(value));
                          } else {
                              configurator.getAdditionalProperties().put(key, value);
                          }
                      }
                  });
  
                  final ClientOptInput input = configurator.toClientOptInput();
                  new DefaultGenerator().opts(input).generate();
              }
              return true;
          } catch (IOException e) {
              throw new CodeGenException(
                      "Failed to generate java files from json file in " + context.inputDir().toAbsolutePath(), e);
          }
      }
  }
  