package com.ctrip.apollo.adminservice.controller;

 import java.util.List;

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

 import org.springframework.http.HttpStatus;

 import org.springframework.http.ResponseEntity;

 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.Cluster;

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

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

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

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

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

 @RestController

 public class ClusterController {

   @Autowired

   private ViewService viewService;

   @Autowired

   private ClusterService clusterService;

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

   public ResponseEntity<ClusterDTO> create(@PathVariable("appId") String appId,

       @RequestBody ClusterDTO dto) {

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

     entity = clusterService.save(entity);

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

     return ResponseEntity.status(HttpStatus.CREATED).body(dto);

   }

   @RequestMapping(path = "/apps/{appId}/clusters/{clusterName}", method = RequestMethod.DELETE)

   public void delete(@PathVariable("appId") String appId,

       @PathVariable("clusterName") String clusterName) {

     Cluster entity = clusterService.findOne(appId, clusterName);

     if (entity == null)

       throw new NotFoundException("cluster not found for clusterName " + clusterName);

     clusterService.delete(entity.getId());

   }

   @RequestMapping("/apps/{appId}/clusters")

   public List<ClusterDTO> find(@PathVariable("appId") String appId) {

     List<Cluster> clusters = viewService.findClusters(appId);

     return BeanUtils.batchTransform(ClusterDTO.class, clusters);

   }

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

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

       @PathVariable("clusterName") String clusterName) {

     Cluster cluster = clusterService.findOne(appId, clusterName);

     return BeanUtils.transfrom(ClusterDTO.class, cluster);

   }

   @RequestMapping(path = "/apps/{appId}/clusters/{clusterName}", method = RequestMethod.PUT)

   public ClusterDTO update(@PathVariable("appId") String appId,

       @PathVariable("clusterName") String clusterName, @RequestBody ClusterDTO dto) {

     if (!clusterName.equals(dto.getName())) {

       throw new IllegalArgumentException(String

           .format("Path variable %s is not equals to object field %s", clusterName, dto.getName()));

     }

     Cluster entity = clusterService.findOne(appId, clusterName);

     if (entity == null) throw new NotFoundException("cluster not found for name " + clusterName);

     entity = clusterService.update(BeanUtils.transfrom(Cluster.class, dto));

     return BeanUtils.transfrom(ClusterDTO.class, entity);

   }

 }