/*
    * Copyright 2012-2025 CodeLibs Project and the Others.
    *
    * 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
    *
    *     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.codelibs.fess.app.service;
  
  import java.util.List;
  
  import org.apache.logging.log4j.LogManager;
  import org.apache.logging.log4j.Logger;
  import org.codelibs.core.beans.util.BeanUtil;
  import org.codelibs.fess.Constants;
  import org.codelibs.fess.app.pager.SchedulerPager;
  import org.codelibs.fess.mylasta.direction.FessConfig;
  import org.codelibs.fess.opensearch.config.cbean.ScheduledJobCB;
  import org.codelibs.fess.opensearch.config.exbhv.ScheduledJobBhv;
  import org.codelibs.fess.opensearch.config.exentity.ScheduledJob;
  import org.codelibs.fess.util.ComponentUtil;
  import org.dbflute.cbean.result.PagingResultBean;
  import org.dbflute.optional.OptionalEntity;
  import org.lastaflute.job.LaCron;
  
  import jakarta.annotation.Resource;
  
  /**
   * Service class for managing scheduled jobs.
   */
  public class ScheduledJobService {
  
      /**
       * Constructor.
       */
      public ScheduledJobService() {
          super();
      }
  
      private static final Logger logger = LogManager.getLogger(ScheduledJobService.class);
  
      /**
       * The behavior for scheduled jobs.
       */
      @Resource
      protected ScheduledJobBhv scheduledJobBhv;
  
      /**
       * The Fess configuration.
       */
      @Resource
      protected FessConfig fessConfig;
  
      /**
       * Gets a list of scheduled jobs based on the pager.
       * @param scheduledJobPager The pager for scheduled jobs.
       * @return A list of scheduled jobs.
       */
      public List<ScheduledJob> getScheduledJobList(final SchedulerPager scheduledJobPager) {
  
          final PagingResultBean<ScheduledJob> scheduledJobList = scheduledJobBhv.selectPage(cb -> {
              cb.paging(scheduledJobPager.getPageSize(), scheduledJobPager.getCurrentPageNumber());
              setupListCondition(cb, scheduledJobPager);
          });
  
          // update pager
          BeanUtil.copyBeanToBean(scheduledJobList, scheduledJobPager, option -> option.include(Constants.PAGER_CONVERSION_RULE));
          scheduledJobPager.setPageNumberList(scheduledJobList.pageRange(op -> {
              op.rangeSize(fessConfig.getPagingPageRangeSizeAsInteger());
          }).createPageNumberList());
  
          return scheduledJobList;
      }
  
      /**
       * Gets a list of scheduled jobs that have been updated after a specific time.
       * @param updateTime The update time.
       * @return A list of scheduled jobs.
       */
      public List<ScheduledJob> getScheduledJobListAfter(final long updateTime) {
          return scheduledJobBhv.selectPage(cb -> {
              cb.fetchFirst(fessConfig.getPageScheduledJobMaxFetchSizeAsInteger());
              cb.query().setAvailable_Equal(Boolean.TRUE);
              cb.query().setUpdatedTime_GreaterThan(updateTime);
          });
      }
  
      /**
       * Gets a scheduled job by its ID.
       * @param id The ID of the scheduled job.
       * @return An optional entity of the scheduled job.
      */
     public OptionalEntity<ScheduledJob> getScheduledJob(final String id) {
         return scheduledJobBhv.selectByPK(id);
     }
 
     /**
      * Deletes a scheduled job.
      * @param scheduledJob The scheduled job to delete.
      */
     public void delete(final ScheduledJob scheduledJob) {
         scheduledJobBhv.delete(scheduledJob, op -> {
             op.setRefreshPolicy(Constants.TRUE);
         });
         ComponentUtil.getJobHelper().remove(scheduledJob);
     }
 
     /**
      * Sets up the list condition for the scheduled job query.
      * @param cb The scheduled job condition bean.
      * @param scheduledJobPager The scheduled job pager.
      */
     protected void setupListCondition(final ScheduledJobCB cb, final SchedulerPager scheduledJobPager) {
         if (scheduledJobPager.id != null) {
             cb.query().docMeta().setId_Equal(scheduledJobPager.id);
         }
         // TODO Long, Integer, String supported only.
 
         // setup condition
         cb.query().addOrderBy_SortOrder_Asc();
         cb.query().addOrderBy_Name_Asc();
 
         // search
 
     }
 
     /**
      * Gets a list of all scheduled jobs.
      * @return A list of all scheduled jobs.
      */
     public List<ScheduledJob> getScheduledJobList() {
         return scheduledJobBhv.selectList(cb -> {
             cb.query().addOrderBy_SortOrder_Asc();
             cb.query().addOrderBy_Name_Asc();
             cb.fetchFirst(fessConfig.getPageScheduledJobMaxFetchSizeAsInteger());
         });
     }
 
     /**
      * Stores a scheduled job.
      * @param scheduledJob The scheduled job to store.
      */
     public void store(final ScheduledJob scheduledJob) {
         scheduledJobBhv.insertOrUpdate(scheduledJob, op -> {
             op.setRefreshPolicy(Constants.TRUE);
         });
     }
 
     /**
      * Gets a list of crawler jobs.
      * @return A list of crawler jobs.
      */
     public List<ScheduledJob> getCrawlerJobList() {
         return scheduledJobBhv.selectList(cb -> {
             cb.query().setCrawler_Equal(Constants.T);
             cb.query().addOrderBy_SortOrder_Asc();
             cb.query().addOrderBy_Name_Asc();
             cb.fetchFirst(fessConfig.getPageScheduledJobMaxFetchSizeAsInteger());
         });
     }
 
     /**
      * Starts all available scheduled jobs.
      * @param cron The cron scheduler.
      */
     public void start(final LaCron cron) {
         scheduledJobBhv.selectCursor(cb -> {
             cb.query().setAvailable_Equal(Constants.T);
             cb.query().addOrderBy_SortOrder_Asc();
             cb.query().addOrderBy_Name_Asc();
         }, scheduledJob -> {
             try {
                 ComponentUtil.getJobHelper().register(cron, scheduledJob);
             } catch (final Exception e) {
                 logger.error("Failed to start job: id={}", scheduledJob.getId(), e);
             }
         });
     }
 }