package com.jiayue.ipfcst.fileupload.service;

import com.jiayue.ipfcst.common.data.entity.UploadFileCode;
import com.jiayue.ipfcst.common.data.repository.UploadFileCodeRepository;
import net.sf.ehcache.Cache;
import net.sf.ehcache.Element;
import net.sf.ehcache.search.*;
import net.sf.ehcache.search.Results;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.ehcache.EhCacheCacheManager;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

import java.util.*;

/**
 * 上报文件CODE码服务类
 * @author xsl
 * @version 3.0
 */
@Service
public class UploadFileCodeService {
  @Autowired
  UploadFileCodeRepository uploadFileCodeRepository;
  @Autowired
  EhCacheCacheManager ehCacheCacheManager;

  /**
   * 保存CODE码
   *
   * @param uploadFileCode CODE信息
   */
  @Transactional(propagation = Propagation.REQUIRED)
  public UploadFileCode save(UploadFileCode uploadFileCode) {
    uploadFileCodeRepository.save(uploadFileCode);
    clearFileCodeCache();
    return uploadFileCode;
  }

  @Transactional(propagation = Propagation.REQUIRED, rollbackFor = Exception.class)
  public void saveCloud(List<UploadFileCode> beans) {
    if(beans != null && beans.size() > 0){
      clearFileCodeCache();
      uploadFileCodeRepository.deleteAll();
      uploadFileCodeRepository.saveAll(beans);
    }
  }

  /**
   * 删除通道信息
   *
   * @param uploadFileCode CODE信息
   */
  @Transactional(propagation = Propagation.REQUIRED)
  public void delete(UploadFileCode uploadFileCode) {
    clearFileCodeCache();
    uploadFileCodeRepository.delete(uploadFileCode);
  }

  /**
   * 移除缓存中的CODE信息
   */
  public void clearFileCodeCache() {
    List<UploadFileCode> uploadFileCodeList = this.get();
    Cache cache = ehCacheCacheManager.getCacheManager().getCache("searchablecache");
    for (UploadFileCode uploadFileCode : uploadFileCodeList) {
      cache.remove("code" + uploadFileCode.getId());
    }
  }

  /**
   * 查询通道信息
   *
   * @return 通道信息
   */
  public List<UploadFileCode> get() {
    Cache cache = ehCacheCacheManager.getCacheManager().getCache("searchablecache");
    Query query = cache.createQuery();
    //查询结果中包含Key和value
    query.includeKeys().includeValues();
    Attribute<String> keyName = cache.getSearchAttribute("key");
    query.addCriteria(keyName.ilike("*code*"));
    Results results = query.execute();
    List<Result> resultList = results.all();

    List<UploadFileCode> list = new ArrayList();
    if (resultList != null && !resultList.isEmpty()) {
      for (Result result : resultList) {
        UploadFileCode e = (UploadFileCode) result.getValue();
        list.add(e);
      }
      results.discard();
    } else {
      //查询数据库
      list = uploadFileCodeRepository.findAll();
      for (UploadFileCode uploadFileCode : list) {
        //将结果存入缓存
        cache.put(new Element("code" + uploadFileCode.getId(), uploadFileCode));
      }
    }
    return list;
  }
}