package com.ctrip.apollo.biz.service;

 import java.util.List;

 import java.util.Objects;

 import org.springframework.beans.factory.annotation.Autowired;

 import org.springframework.data.domain.Page;

 import org.springframework.data.domain.Pageable;

 import org.springframework.stereotype.Service;

 import org.springframework.transaction.annotation.Transactional;

 import com.ctrip.apollo.biz.entity.App;

 import com.ctrip.apollo.biz.entity.Audit;

 import com.ctrip.apollo.biz.repository.AppRepository;

 import com.ctrip.apollo.common.utils.BeanUtils;

 import com.ctrip.apollo.core.exception.ServiceException;

 @Service

 public class AppService {

   @Autowired

   private AppRepository appRepository;

   @Autowired

   private AuditService auditService;

   public boolean isAppIdUnique(String appId) {

     Objects.requireNonNull(appId, "AppId must not be null");

     return Objects.isNull(appRepository.findByAppId(appId));

   }

   @Transactional

   public void delete(long id, String owner) {

     appRepository.delete(id);

     auditService.audit(App.class.getSimpleName(), id, Audit.OP.DELETE, owner);

   }

   public List<App> findAll(Pageable pageable) {

     Page<App> page = appRepository.findAll(pageable);

     return page.getContent();

   }

   public List<App> findByName(String name) {

     return appRepository.findByName(name);

   }

   public App findOne(String appId) {

     return appRepository.findByAppId(appId);

   }

   @Transactional

   public App save(App entity) {

     if (!isAppIdUnique(entity.getAppId())) {

       throw new ServiceException("appId not unique");

     }

     App app = appRepository.save(entity);

     auditService.audit(App.class.getSimpleName(), app.getId(), Audit.OP.INSERT,

         app.getDataChangeCreatedBy());

     return app;

   }

   @Transactional

   public App update(App app) {

     App managedApp = appRepository.findByAppId(app.getAppId());

     BeanUtils.copyEntityProperties(app, managedApp);

     managedApp = appRepository.save(managedApp);

     auditService.audit(App.class.getSimpleName(), managedApp.getId(), Audit.OP.UPDATE,

         managedApp.getDataChangeLastModifiedBy());

     return managedApp;

   }

 }