/*
 *      Copyright (c) 2018-2028, Chill Zhuang All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions are met:
 *
 *  Redistributions of source code must retain the above copyright notice,
 *  this list of conditions and the following disclaimer.
 *  Redistributions in binary form must reproduce the above copyright
 *  notice, this list of conditions and the following disclaimer in the
 *  documentation and/or other materials provided with the distribution.
 *  Neither the name of the dreamlu.net developer nor the names of its
 *  contributors may be used to endorse or promote products derived from
 *  this software without specific prior written permission.
 *  Author: Chill 庄骞 (smallchill@163.com)
 */
package org.springblade.modules.applicationDelay.service.impl;

import lombok.AllArgsConstructor;
import org.flowable.bpmn.model.*;
import org.flowable.engine.RepositoryService;
import org.flowable.engine.RuntimeService;
import org.flowable.engine.TaskService;
import org.flowable.engine.runtime.ProcessInstance;
import org.flowable.task.api.Task;
import org.springblade.common.constant.AuditStatusConstant;
import org.springblade.core.log.exception.ServiceException;
import org.springblade.core.mp.support.Condition;
import org.springblade.core.secure.utils.AuthUtil;
import org.springblade.core.tool.support.Kv;
import org.springblade.core.tool.utils.DateUtil;
import org.springblade.core.tool.utils.Func;
import org.springblade.core.tool.utils.StringUtil;
import org.springblade.flow.business.service.IFlowService;
import org.springblade.flow.core.constant.ProcessConstant;
import org.springblade.flow.core.entity.BladeFlow;
import org.springblade.flow.core.utils.FlowUtil;
import org.springblade.flow.core.utils.TaskUtil;
import org.springblade.flow.demo.leave.entity.ProcessLeave;
import org.springblade.modules.application.entity.ApplicationEntity;
import org.springblade.modules.application.entity.BasicInfoEntity;
import org.springblade.modules.application.service.IApplicationService;
import org.springblade.modules.application.service.IBasicInfoService;
import org.springblade.modules.applicationDelay.entity.ApplicationDelayEntity;
import org.springblade.modules.applicationDelay.vo.ApplicationDelayVO;
import org.springblade.modules.applicationDelay.mapper.ApplicationDelayMapper;
import org.springblade.modules.applicationDelay.service.IApplicationDelayService;
import org.springblade.core.mp.base.BaseServiceImpl;
import org.springframework.stereotype.Service;
import com.baomidou.mybatisplus.core.metadata.IPage;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;
import java.util.Map;

/**
 * 延期申请表 服务实现类
 *
 * @author BladeX
 * @since 2022-12-13
 */
@Service
@AllArgsConstructor
public class ApplicationDelayServiceImpl extends BaseServiceImpl<ApplicationDelayMapper, ApplicationDelayEntity> implements IApplicationDelayService {
	private final IApplicationService applicationService;
	private final IBasicInfoService basicInfoService;

	private final IFlowService flowService;
	private final TaskService taskService;
	private final RuntimeService runtimeService;
	private final RepositoryService repositoryService;

	@Override
	public IPage<ApplicationDelayVO> selectApplicationDelayPage(IPage<ApplicationDelayVO> page, ApplicationDelayVO applicationDelay) {
		return page.setRecords(baseMapper.selectApplicationDelayPage(page, applicationDelay));
	}

	@Override
	@Transactional(rollbackFor = Exception.class)
	public Boolean startProcess(ApplicationDelayVO applicationDelayEntity) {
		String businessTable = FlowUtil.getBusinessTable(ProcessConstant.DELAY_AUDIT);
		if (Func.isEmpty(applicationDelayEntity.getId())) {
			// 保存leave
			save(applicationDelayEntity);
			// 启动流程
			Kv variables = Kv.create()
				.set(ProcessConstant.TASK_VARIABLE_CREATE_USER, AuthUtil.getUserName());
			BladeFlow flow = flowService.startProcessInstanceById(applicationDelayEntity.getProcessDefinitionId(), FlowUtil.getBusinessKey(businessTable, String.valueOf(applicationDelayEntity.getId())), variables);
			if (Func.isNotEmpty(flow)) {
				log.debug("流程已启动,流程ID:" + flow.getProcessInstanceId());
				// 返回流程id写入leave
				applicationDelayEntity.setProcessInstanceId(flow.getProcessInstanceId());
				updateById(applicationDelayEntity);
			} else {
				throw new ServiceException("开启流程失败");
			}
		} else {

			updateById(applicationDelayEntity);
		}
		return true;
	}

	@Override
	public Boolean completeTask(BladeFlow flow) {
		String taskId = flow.getTaskId();
		String processInstanceId = flow.getProcessInstanceId();
		String comment = Func.toStr(flow.getComment(), ProcessConstant.PASS_COMMENT);
		// 增加评论
		if (StringUtil.isNoneBlank(processInstanceId, comment)) {
			taskService.addComment(taskId, processInstanceId, comment);
		}
		// 创建变量
		Map<String, Object> variables = flow.getVariables();
		if (variables == null) {
			variables = Kv.create();
		}


		Task task = taskService.createTaskQuery().taskId(taskId).singleResult();
		ProcessInstance pi = runtimeService.createProcessInstanceQuery().processInstanceId(task.getProcessInstanceId()).singleResult();
		// 通过流程实例获取“业务键”
		String businessKey = pi.getBusinessKey().split(":")[1];

		//获取实例对象
		ApplicationDelayEntity entity = getById(businessKey);

		//未通过审核
		if (!flow.isPass()){
			entity.setStatus(AuditStatusConstant.REJECT_AUDIT);
		}

		//通过审核且下一步就结束
		if (flow.isPass() && getEndNode(task, entity.getProcessDefinitionId())) {
			Long applicationId = applicationService.getByNo(entity.getNo()).getId();
			BasicInfoEntity basicInfo = basicInfoService.getOne(Condition.getQueryWrapper(new BasicInfoEntity(applicationId.toString())));
			//更新基础信息
			basicInfo.setStartPassTime(entity.getDelayStartTime());
			basicInfo.setEndPassTime(entity.getDelayEndTime());
			basicInfo.setPathway(entity.getPathway());
			basicInfo.setDeparture(entity.getDeparture());
			basicInfo.setDestination(entity.getDestination());
			basicInfo.setPassProvince(entity.getPassProvince());
			basicInfo.setPassBridge(entity.getPassBridge());
			basicInfo.setTransportDept(entity.getTransportDept());
			basicInfoService.updateById(basicInfo);

			//修改审核状态
			entity.setStatus(AuditStatusConstant.FINISH);
		}

		updateById(entity);

		variables.put(ProcessConstant.PASS_KEY, flow.isPass());
		// 完成任务
		taskService.complete(taskId, variables);
		return true;
	}

	/**
	 * 判断是否包含最终节点且为倒数第二个节点
	 *
	 * @param task
	 * @param definitionId
	 * @return
	 */
	public boolean getEndNode(Task task, String definitionId) {
		boolean isEnd = false;
		boolean finalTask = false;
		BpmnModel bpmnModel = repositoryService.getBpmnModel(definitionId);
		FlowNode flowNode = (FlowNode) bpmnModel.getFlowElement(task.getTaskDefinitionKey());
		List<SequenceFlow> outgoingFlows = flowNode.getOutgoingFlows();
		for (SequenceFlow outgoingFlow : outgoingFlows) {
			FlowElement targetFlowElement = outgoingFlow.getTargetFlowElement();
			FlowElement sourceFlowElement = outgoingFlow.getSourceFlowElement();
			if (sourceFlowElement.getId().equals("finalTask")) {
				finalTask = true;
			}
			if (targetFlowElement instanceof EndEvent) {
				isEnd = true;
				break;
			}
		}
		return isEnd && finalTask;
	}

}