package com.ctrip.apollo.adminservice.controller;

 import java.util.LinkedList;

 import java.util.List;

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

 import org.springframework.security.core.userdetails.UserDetails;

 import org.springframework.web.bind.annotation.PathVariable;

 import org.springframework.web.bind.annotation.RequestBody;

 import org.springframework.web.bind.annotation.RequestMapping;

 import org.springframework.web.bind.annotation.RequestMethod;

 import org.springframework.web.bind.annotation.RestController;

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

 import com.ctrip.apollo.biz.service.ItemService;

 import com.ctrip.apollo.common.auth.ActiveUser;

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

 import com.ctrip.apollo.core.dto.ItemDTO;

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

 @RestController

 public class ItemController {

   @Autowired

   private ItemService itemService;

   @RequestMapping(path = "/apps/{appId}/clusters/{clusterName}/namespaces/{namespaceName}/items", method = RequestMethod.POST)

   public ItemDTO createOrUpdate(@PathVariable("appId") String appId,

       @PathVariable("clusterName") String clusterName,

       @PathVariable("namespaceName") String namespaceName, @RequestBody ItemDTO dto,

       @ActiveUser UserDetails user) {

     Item entity = BeanUtils.transfrom(Item.class, dto);

     Item managedEntity = itemService.findOne(appId, clusterName, namespaceName, entity.getKey());

     if (managedEntity != null) {

       managedEntity.setDataChangeLastModifiedBy(user.getUsername());

       BeanUtils.copyEntityProperties(entity, managedEntity);

       entity = itemService.update(managedEntity);

     } else {

       entity.setDataChangeCreatedBy(user.getUsername());

       entity = itemService.save(entity);

     }

     dto = BeanUtils.transfrom(ItemDTO.class, entity);

     return dto;

   }

   @RequestMapping(path = "/items/{itemId}", method = RequestMethod.DELETE)

   public void delete(@PathVariable("itemId") long itemId, @ActiveUser UserDetails user) {

     Item entity = itemService.findOne(itemId);

     if (entity == null) throw new NotFoundException("item not found for itemId " + itemId);

     itemService.delete(entity.getId(), user.getUsername());

   }

   @RequestMapping("/apps/{appId}/clusters/{clusterName}/namespaces/{namespaceName}/items")

   public List<ItemDTO> findItems(@PathVariable("appId") String appId,

       @PathVariable("clusterName") String clusterName,

       @PathVariable("namespaceName") String namespaceName) {

     List<Item> items = itemService.findItems(appId, clusterName, namespaceName);

     List<ItemDTO> itemDTOs = new LinkedList<>();

     for (Item item: items){

       ItemDTO itemDTO = BeanUtils.transfrom(ItemDTO.class, item);

       itemDTO.setLastModifiedBy(item.getDataChangeLastModifiedBy());

       itemDTO.setLastModifiedTime(item.getDataChangeLastModifiedTime());

       itemDTOs.add(itemDTO);

     }

     return itemDTOs;

   }

   @RequestMapping("/items/{itemId}")

   public ItemDTO get(@PathVariable("itemId") long itemId) {

     Item item = itemService.findOne(itemId);

     if (item == null) throw new NotFoundException("item not found for itemId " + itemId);

     return BeanUtils.transfrom(ItemDTO.class, item);

   }

   @RequestMapping("/apps/{appId}/clusters/{clusterName}/namespaces/{namespaceName}/items/{key}")

   public ItemDTO get(@PathVariable("appId") String appId,

       @PathVariable("clusterName") String clusterName,

       @PathVariable("namespaceName") String namespaceName, @PathVariable("key") String key) {

     Item item = itemService.findOne(appId, clusterName, namespaceName, key);

     if (item == null) throw new NotFoundException(

         String.format("item not found for %s %s %s %s", appId, clusterName, namespaceName, key));

     return BeanUtils.transfrom(ItemDTO.class, item);

   }

 }