/* 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.activiti.rest.service.api.history;

import org.activiti.engine.runtime.ProcessInstance;
import org.activiti.engine.task.Task;
import org.activiti.engine.test.Deployment;
import org.activiti.rest.service.BaseSpringRestTestCase;
import org.activiti.rest.service.api.RestUrls;
import org.apache.http.HttpStatus;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpDelete;
import org.apache.http.client.methods.HttpGet;

import com.fasterxml.jackson.databind.JsonNode;


/**
 * Test for REST-operation related to get and delete a historic process instance.
 * 
 * @author Tijs Rademakers
 */
public class HistoricProcessInstanceResourceTest extends BaseSpringRestTestCase {
  
  /**
   * Test retrieval of historic process instance. 
   * GET history/historic-process-instances/{processInstanceId}
   */
  @Deployment(resources={"org/activiti/rest/service/api/repository/oneTaskProcess.bpmn20.xml"})
  public void testGetProcessInstance() throws Exception {
    ProcessInstance processInstance = runtimeService.createProcessInstanceBuilder()
    		.processDefinitionKey("oneTaskProcess")
    		.processInstanceName("processName")
    		.start();

    CloseableHttpResponse response = executeRequest(new HttpGet(SERVER_URL_PREFIX + RestUrls.createRelativeResourceUrl(
        RestUrls.URL_HISTORIC_PROCESS_INSTANCE, processInstance.getId())), HttpStatus.SC_OK);
    
    assertEquals(HttpStatus.SC_OK, response.getStatusLine().getStatusCode());
    
    JsonNode responseNode = objectMapper.readTree(response.getEntity().getContent());
    closeResponse(response);
    assertNotNull(responseNode);
    assertEquals(processInstance.getId(), responseNode.get("id").textValue());
    assertEquals("processName", responseNode.get("name").textValue());
    
    Task task = taskService.createTaskQuery().processInstanceId(processInstance.getId()).singleResult();
    assertNotNull(task);
    taskService.complete(task.getId());
    
    response = executeRequest(new HttpDelete(SERVER_URL_PREFIX + RestUrls.createRelativeResourceUrl(
        RestUrls.URL_HISTORIC_PROCESS_INSTANCE, processInstance.getId())), HttpStatus.SC_NO_CONTENT);
    assertEquals(HttpStatus.SC_NO_CONTENT, response.getStatusLine().getStatusCode());
    closeResponse(response);
  }
}