/* 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.management;

import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.activiti.engine.ActivitiIllegalArgumentException;
import org.activiti.engine.ManagementService;
import org.activiti.engine.impl.JobQueryProperty;
import org.activiti.engine.query.QueryProperty;
import org.activiti.engine.runtime.JobQuery;
import org.activiti.rest.common.api.DataResponse;
import org.activiti.rest.common.api.RequestUtil;
import org.activiti.rest.service.api.RestResponseFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

/**
 * @author Frederik Heremans
 */
@RestController
public class JobCollectionResource {

  protected static Map<String, QueryProperty> properties;

  static {
    properties = new HashMap<String, QueryProperty>();
    properties.put("id", JobQueryProperty.JOB_ID);
    properties.put("dueDate", JobQueryProperty.DUEDATE);
    properties.put("executionId", JobQueryProperty.EXECUTION_ID);
    properties.put("processInstanceId", JobQueryProperty.PROCESS_INSTANCE_ID);
    properties.put("retries", JobQueryProperty.RETRIES);
    properties.put("tenantId", JobQueryProperty.TENANT_ID);
  }
  
  @Autowired
  protected RestResponseFactory restResponseFactory;
  
  @Autowired
  protected ManagementService managementService;
  
  @RequestMapping(value="/management/jobs", method = RequestMethod.GET, produces = "application/json")
  public DataResponse getJobs(@RequestParam Map<String,String> allRequestParams, HttpServletRequest request) {
    JobQuery query = managementService.createJobQuery();
    
    if (allRequestParams.containsKey("id")) {
      query.jobId(allRequestParams.get("id"));
    }
    if (allRequestParams.containsKey("processInstanceId")) {
      query.processInstanceId(allRequestParams.get("processInstanceId"));
    }
    if (allRequestParams.containsKey("executionId")) {
      query.executionId(allRequestParams.get("executionId"));
    }
    if (allRequestParams.containsKey("processDefinitionId")) {
      query.processDefinitionId(allRequestParams.get("processDefinitionId"));
    }
    if (allRequestParams.containsKey("withRetriesLeft")) {
      if (Boolean.valueOf(allRequestParams.get("withRetriesLeft"))) {
        query.withRetriesLeft();
      }
    }
    if (allRequestParams.containsKey("executable")) {
      if (Boolean.valueOf(allRequestParams.get("executable"))) {
        query.executable();
      }
    }
    if (allRequestParams.containsKey("timersOnly")) {
      if (allRequestParams.containsKey("messagesOnly")) {
        throw new ActivitiIllegalArgumentException("Only one of 'timersOnly' or 'messagesOnly' can be provided.");
      }
      if (Boolean.valueOf(allRequestParams.get("timersOnly"))) {
        query.timers();
      }
    }
    if (allRequestParams.containsKey("messagesOnly")) {
      if (Boolean.valueOf(allRequestParams.get("messagesOnly"))) {
        query.messages();
      }
    }
    if (allRequestParams.containsKey("dueBefore")) {
      query.duedateLowerThan(RequestUtil.getDate(allRequestParams, "dueBefore"));
    }
    if (allRequestParams.containsKey("dueAfter")) {
      query.duedateHigherThan(RequestUtil.getDate(allRequestParams, "dueAfter"));
    }
    if (allRequestParams.containsKey("withException")) {
      if (Boolean.valueOf(allRequestParams.get("withException"))) {
        query.withException();
      }
    }
    if (allRequestParams.containsKey("exceptionMessage")) {
      query.exceptionMessage(allRequestParams.get("exceptionMessage"));
    }
    if (allRequestParams.containsKey("tenantId")) {
      query.jobTenantId(allRequestParams.get("tenantId"));
    }
    if (allRequestParams.containsKey("tenantIdLike")) {
      query.jobTenantIdLike(allRequestParams.get("tenantIdLike"));
    }
    if (allRequestParams.containsKey("withoutTenantId")) {
      if (Boolean.valueOf(allRequestParams.get("withoutTenantId"))) {
        query.jobWithoutTenantId();
      }
    }

    return new JobPaginateList(restResponseFactory)
        .paginateList(allRequestParams, query, "id", properties);
  }
}