content: /*
   * This file is a part of BSL Language Server.
   *
   * Copyright (c) 2018-2025
   * Alexey Sosnoviy <labotamy@gmail.com>, Nikita Fedkin <nixel2007@gmail.com> and contributors
   *
   * SPDX-License-Identifier: LGPL-3.0-or-later
   *
   * BSL Language Server is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 3.0 of the License, or (at your option) any later version.
   *
   * BSL Language Server is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with BSL Language Server.
   */
  package com.github._1c_syntax.bsl.languageserver.configuration.watcher;
  
  import com.github._1c_syntax.bsl.languageserver.configuration.LanguageServerConfiguration;
  import lombok.RequiredArgsConstructor;
  import lombok.extern.slf4j.Slf4j;
  import org.springframework.stereotype.Component;
  
  import java.io.File;
  import java.nio.file.WatchEvent;
  
  import static java.nio.file.StandardWatchEventKinds.ENTRY_CREATE;
  import static java.nio.file.StandardWatchEventKinds.ENTRY_DELETE;
  import static java.nio.file.StandardWatchEventKinds.ENTRY_MODIFY;
  
  /**
   * Обработчик событий изменения файла конфигурации.
   * <p>
   * Выполняет обновление/сброс инстанса
   * {@link com.github._1c_syntax.bsl.languageserver.configuration.LanguageServerConfiguration}.
   */
  @Component
  @Slf4j
  @RequiredArgsConstructor
  public class ConfigurationFileChangeListener {
  
    private final LanguageServerConfiguration configuration;
  
    /**
     * Обработчик изменения файла конфигурации. Актуализирует текущий активный инстанс конфигурации
     * {@link com.github._1c_syntax.bsl.languageserver.configuration.LanguageServerConfiguration}.
     *
     * @param configurationFile Изменившийся файл конфигурации, содержащий
     *                          {@link com.github._1c_syntax.bsl.languageserver.configuration.LanguageServerConfiguration}.
     * @param eventKind         Тип события, произошедшего с файлом.
     */
    public void onChange(File configurationFile, WatchEvent.Kind<?> eventKind) {
      if (ENTRY_CREATE.equals(eventKind) || ENTRY_MODIFY.equals(eventKind)) {
        configuration.update(configurationFile);
        LOGGER.info("BSL Language Server configuration has been reloaded");
      } else if (ENTRY_DELETE.equals(eventKind)) {
        configuration.reset();
        LOGGER.info("BSL Language Server configuration has been reset to default");
      } else {
        LOGGER.error("Unknown watch event kind {}", eventKind);
      }
    }
  }
  