content: /*
   * Copyright 2022-2023 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.initializer.core.template.loader;
  
  import java.io.File;
  import java.io.FileReader;
  import java.io.Reader;
  import java.net.URI;
  import java.nio.file.Path;
  import java.nio.file.Paths;
  import java.util.List;
  import java.util.Set;
  
  import com.alibaba.initializer.core.template.CodeTemplate;
  import com.alibaba.initializer.core.template.CodeTemplateRepo;
  import com.alibaba.initializer.core.template.CodeTemplateRepoLoader;
  import com.google.common.collect.Lists;
  import com.google.common.collect.Sets;
  import lombok.SneakyThrows;
  import lombok.extern.slf4j.Slf4j;
  
  /**
   * load template file from local file system
   * <pre>
   *     This used for test case
   * </pre>
   *
   * @author <a href="mailto:chenxilzx1@gmail.com">theonefx</a>
   */
  @Slf4j
  public class LocalRepoTemplateLoader implements CodeTemplateRepoLoader {
  
      private static final Set<String> IGNORE_FILE_NAMES = Sets.newHashSet(".git");
  
      @SneakyThrows
      @Override
      public CodeTemplateRepo load(String uriStr) {
  
          URI uri = new URI(uriStr);
  
          String path = uri.getPath();
  
          File file = new File(path);
  
          return scanGitRepoFiles(uri, file);
      }
  
      protected CodeTemplateRepo scanGitRepoFiles(URI path, File file) {
          List<CodeTemplate> templates = Lists.newArrayList();
          if (file != null && file.listFiles() != null) {
              for (File listFile : file.listFiles()) {
                  scan(templates, Paths.get(""), listFile);
              }
          }
          return new CodeTemplateRepo(path, templates);
      }
  
      protected void scan(List<CodeTemplate> templates, Path parent, File file) {
          if (IGNORE_FILE_NAMES.contains(file.getName())) {
              return;
          }
  
          if (file.isDirectory()) {
              for (File listFile : file.listFiles()) {
                  scan(templates, parent.resolve(file.getName()), listFile);
              }
          } else {
              CodeTemplate template = new CodeTemplate(parent, file.getName()) {
                  @SneakyThrows
                  @Override
                  public Reader getReader() {
                      return new FileReader(file);
                  }
              };
              templates.add(template);
          }
      }
  
      @Override
      public String getProtocol() {
          return "local";
      }
  }
  