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.causeway.viewer.commons.prism;
  
  import java.util.List;
  import java.util.Optional;
  
  import org.jspecify.annotations.Nullable;
  
  import org.springframework.util.StringUtils;
  
  public record PrismLanguage(String languageId) {
  
      public String cssClass() {
          return "language-" + languageId;
      }
  
      public String jsFile() {
          return "prism/components/prism-" + languageId + ".min.js";
      }
  
      /**
       * eg. {@code class='language-ruby'} results in {@code languageId=ruby}
       */
      public static Optional<PrismLanguage> parseFromCssClass(final @Nullable String cssClass) {
          if(!StringUtils.hasLength(cssClass)) return Optional.empty();
          int start = cssClass.indexOf("language-");
          if(start==-1) return Optional.empty();
          var languageKey = cssClass.substring(start+9);
          int w = languageKey.indexOf(" ");
          if(w>-1) languageKey = languageKey.substring(0, w);
          return Optional.of(new PrismLanguage(languageKey));
      }
      
      @Deprecated
      public static List<PrismLanguage> mostCommon() {
          //XXX order matters, eg. JAVADOCLIKE must come before JAVADOC
          //XXX future extensions might want to make that a config option
          return List.of(
              "markup",
              "css",
              "clike",
              "java",
              "javascript",
              "asciidoc",
              "javadoclike",
              "javadoc",
              "json",
              "properties",
              "xml-doc",
              "yaml")
              .stream()
              .map(PrismLanguage::new)
              .toList();
      }
  
  }
  