package com.vci.server.workflow.server.service;

import java.util.Set;

import org.jbpm.api.task.Task;

import com.vci.corba.common.VCIError;
import com.vci.server.base.persistence.dao.HibernateSessionFactory;
import com.vci.server.workflow.common.resouce.WorkflowProperties;
import com.vci.server.workflow.server.JbpmEngine;
import com.vci.server.workflow.server.interfaces.PLMWorkItemInterface;

public class WorkFlowService {

	private static WorkFlowService instance = null;
	private PLMWorkItemInterface pwService = null;

	private WorkFlowService() {

	}

	public static WorkFlowService getInstance() {
		if (instance == null) {
			instance = new WorkFlowService();
		}

		return instance;
	}

	/**
	 * 获取当前执行task所在流程实例关联的对象
	 * 
	 * @param task
	 * @return
	 */
	public Object getWorkFlowRelatedObjs(Task task) {
		Object objs = JbpmEngine.getProcessEngine().getTaskService().getVariable(task.getId(), "objId");

		return objs;
	}

	private String getWorkitemHandlerClassName() {
		String workitemClass = WorkflowProperties.getStringProperty("workflow.plmworkitem");

		return workitemClass;
	}

	public void saveForComplete_v1(String[] userNames, String[] objectOids, Task task, String btmType, String btmDesc,
			String processName, String nextTaskId, int m, String[] objectProperty, String[][] objectPropertyValues)
			throws VCIError, InstantiationException, IllegalAccessException, ClassNotFoundException {
		Object obj = JbpmEngine.getProcessEngine().getTaskService().getVariable(task.getId(), "objectPropertyValues");
		if (obj != null && obj instanceof String[][]) {
			objectPropertyValues = (String[][]) obj;
		}

		String userName = userNames[m];
		getWorkItemService().saveForComplete_v1(userName, objectOids, task, btmType, btmDesc, processName, nextTaskId,
				HibernateSessionFactory.getVciSessionInfo().userName, objectProperty, objectPropertyValues);
	}

	public void saveForCompleteAndSaveOpinion_v1(String[] userNames, String[] objectOids, Task task, String btmType,
			String btmDesc, String processName, String nextTaskId, int m, String[] objectProperty,
			String[][] allObjectPropertyValues, String outcome, String approvalNote, Set<String> selecedOidSet)
			throws VCIError, InstantiationException, IllegalAccessException, ClassNotFoundException {
		String userName = userNames[m];
		getWorkItemService().saveForCompleteAndSaveOpinion_v1(userName, objectOids, task, btmType, btmDesc, processName,
				nextTaskId, HibernateSessionFactory.getVciSessionInfo().userName, objectProperty,
				allObjectPropertyValues, outcome, approvalNote, selecedOidSet);
	}

	private PLMWorkItemInterface getWorkItemService() throws VCIError {
		if (pwService != null) {
			return pwService;
		}

		try {
			pwService = (PLMWorkItemInterface) (Class.forName(getWorkitemHandlerClassName()).newInstance());
		} catch (Throwable e) {
			e.printStackTrace();
			throw new VCIError("", new String[] { e.getMessage() });
		}

		return pwService;
	}
}