/**
 * BladeX Commercial License Agreement
 * Copyright (c) 2018-2099, https://bladex.cn. All rights reserved.
 * <p>
 * Use of this software is governed by the Commercial License Agreement
 * obtained after purchasing a license from BladeX.
 * <p>
 * 1. This software is for development use only under a valid license
 * from BladeX.
 * <p>
 * 2. Redistribution of this software's source code to any third party
 * without a commercial license is strictly prohibited.
 * <p>
 * 3. Licensees may copyright their own code but cannot use segments
 * from this software for such purposes. Copyright of this software
 * remains with BladeX.
 * <p>
 * Using this software signifies agreement to this License, and the software
 * must not be used for illegal purposes.
 * <p>
 * THIS SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY. The author is
 * not liable for any claims arising from secondary or illegal development.
 * <p>
 * Author: Chill Zhuang (bladejava@qq.com)
 */
package org.springblade.mdm.flow.service;

import com.baomidou.mybatisplus.core.metadata.IPage;
import lombok.AllArgsConstructor;
import org.flowable.engine.HistoryService;
import org.flowable.engine.TaskService;
import org.flowable.engine.history.HistoricProcessInstance;
import org.flowable.engine.history.HistoricProcessInstanceQuery;
import org.flowable.task.api.Task;
import org.flowable.task.api.TaskQuery;
import org.flowable.task.api.history.HistoricTaskInstance;
import org.flowable.task.api.history.HistoricTaskInstanceQuery;
import org.springblade.core.secure.utils.AuthUtil;
import org.springblade.core.tool.support.Kv;
import org.springblade.core.tool.utils.*;
import org.springblade.flow.core.constant.ProcessConstant;
import org.springblade.flow.core.pojo.entity.BladeFlow;
import org.springblade.flow.core.utils.TaskUtil;

import org.springblade.mdm.flow.entity.MdmFlowProcess;
import org.springblade.mdm.flow.util.MdmFlowCache;
import org.springframework.stereotype.Service;

import java.time.LocalDate;
import java.util.Date;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;

/**
 * 流程业务实现类
 *
 * @author Chill
 */
@Service
@AllArgsConstructor
public class FlowBusinessService {

	private final TaskService taskService;
	private final HistoryService historyService;


	public IPage<BladeFlow> selectTodoPage(IPage<BladeFlow> page, LocalDate createTimeBegin,LocalDate createTimeEnd, String keyword) {
		//String taskUser = TaskUtil.getTaskUser();
		String userId = ""+AuthUtil.getUserId();
		List<BladeFlow> flowList = new LinkedList<>();

		TaskQuery todoQuery = taskService.createTaskQuery().taskAssignee(userId).active().includeProcessVariables();
		if(Func.isNotEmpty(createTimeBegin)){
			todoQuery.taskCreatedAfter(DateUtil.toDate(createTimeBegin));
			//如果查询实例的开始时间：todoQuery.taskInProgressStartDueAfter()
		}
		if(Func.isNotEmpty(createTimeEnd)){
			todoQuery.taskCreatedBefore(DateUtil.toDate(createTimeEnd));

		}
		if(Func.isNotEmpty(keyword)){
			todoQuery.or();

			todoQuery.processVariableValueLike("processNo",keyword);
			todoQuery.processVariableValueLike("machineCode",keyword);
			todoQuery.processVariableValueLike("machineMode",keyword);

			todoQuery.processVariableValueLike("processName",keyword);
			todoQuery.processVariableValueLike("processEdition",keyword);

			todoQuery.processVariableValueLike("craftEdition",keyword);
			//TODO 多个字段都要匹配

			todoQuery.endOr();
		}

		todoQuery.orderByTaskCreateTime().desc();
		//List<Task> listt = todoQuery.list();

		// 已签收的任务.caseVariableValueLike("processNo",keyword)
		/*
		TaskQuery todoQuery = taskService.createTaskQuery().taskAssignee(userId).active()
			.includeProcessVariables().orderByTaskCreateTime().desc();

		 */

		// 构建列表数据
		BladeFlow bladeFlow = new BladeFlow();
		buildFlowTaskList(bladeFlow, flowList, todoQuery, "todo");//FlowEngineConstant.STATUS_TODO

		// 计算总数
		long count = todoQuery.count();
		// 设置页数
		page.setSize(count);
		// 设置总数
		page.setTotal(count);
		// 设置数据
		page.setRecords(flowList);
		return page;
	}
	/*
	@Override
	public IPage<BladeFlow> selectSendPage(IPage<BladeFlow> page, BladeFlow bladeFlow) {
		String taskUser = TaskUtil.getTaskUser();
		List<BladeFlow> flowList = new LinkedList<>();

		HistoricProcessInstanceQuery historyQuery = historyService.createHistoricProcessInstanceQuery().startedBy(taskUser).orderByProcessInstanceStartTime().desc();

		if (bladeFlow.getCategory() != null) {
			historyQuery.processDefinitionCategory(bladeFlow.getCategory());
		}
		if (bladeFlow.getProcessDefinitionName() != null) {
			historyQuery.processDefinitionName(bladeFlow.getProcessDefinitionName());
		}
		if (bladeFlow.getBeginDate() != null) {
			historyQuery.startedAfter(bladeFlow.getBeginDate());
		}
		if (bladeFlow.getEndDate() != null) {
			historyQuery.startedBefore(bladeFlow.getEndDate());
		}

		// 查询列表
		List<HistoricProcessInstance> historyList = historyQuery.listPage(Func.toInt((page.getCurrent() - 1) * page.getSize()), Func.toInt(page.getSize()));

		historyList.forEach(historicProcessInstance -> {
			BladeFlow flow = new BladeFlow();
			// historicProcessInstance
			flow.setCreateTime(historicProcessInstance.getStartTime());
			flow.setEndTime(historicProcessInstance.getEndTime());
			flow.setVariables(historicProcessInstance.getProcessVariables());
			String[] businessKey = Func.toStrArray(StringPool.COLON, historicProcessInstance.getBusinessKey());
			if (businessKey.length > 1) {
				flow.setBusinessTable(businessKey[0]);
				flow.setBusinessId(businessKey[1]);
			}
			flow.setHistoryActivityName(historicProcessInstance.getName());
			flow.setProcessInstanceId(historicProcessInstance.getId());
			flow.setHistoryProcessInstanceId(historicProcessInstance.getId());
			// ProcessDefinition
			FlowProcess processDefinition = FlowCache.getProcessDefinition(historicProcessInstance.getProcessDefinitionId());
			flow.setProcessDefinitionId(processDefinition.getId());
			flow.setProcessDefinitionName(processDefinition.getName());
			flow.setProcessDefinitionVersion(processDefinition.getVersion());
			flow.setProcessDefinitionKey(processDefinition.getKey());
			flow.setCategory(processDefinition.getCategory());
			flow.setCategoryName(FlowCache.getCategoryName(processDefinition.getCategory()));
			flow.setProcessInstanceId(historicProcessInstance.getId());
			// HistoricTaskInstance
			List<HistoricTaskInstance> historyTasks = historyService.createHistoricTaskInstanceQuery().processInstanceId(historicProcessInstance.getId()).orderByHistoricTaskInstanceEndTime().desc().list();
			if (Func.isNotEmpty(historyTasks)) {
				HistoricTaskInstance historyTask = historyTasks.iterator().next();
				flow.setTaskId(historyTask.getId());
				flow.setTaskName(historyTask.getName());
				flow.setTaskDefinitionKey(historyTask.getTaskDefinitionKey());
			}
			// Status
			if (historicProcessInstance.getEndActivityId() != null) {
				flow.setProcessIsFinished(FlowEngineConstant.STATUS_FINISHED);
			} else {
				flow.setProcessIsFinished(FlowEngineConstant.STATUS_UNFINISHED);
			}
			flow.setStatus(FlowEngineConstant.STATUS_FINISH);
			flowList.add(flow);
		});

		// 计算总数
		long count = historyQuery.count();
		// 设置总数
		page.setTotal(count);
		page.setRecords(flowList);
		return page;
	}

	@Override
	public IPage<BladeFlow> selectDonePage(IPage<BladeFlow> page, BladeFlow bladeFlow) {
		String taskUser = TaskUtil.getTaskUser();
		List<BladeFlow> flowList = new LinkedList<>();

		HistoricTaskInstanceQuery doneQuery = historyService.createHistoricTaskInstanceQuery().taskAssignee(taskUser).finished()
			.includeProcessVariables().orderByHistoricTaskInstanceEndTime().desc();

		if (bladeFlow.getCategory() != null) {
			doneQuery.processCategoryIn(Func.toStrList(bladeFlow.getCategory()));
		}
		if (bladeFlow.getProcessDefinitionName() != null) {
			doneQuery.processDefinitionName(bladeFlow.getProcessDefinitionName());
		}
		if (bladeFlow.getBeginDate() != null) {
			doneQuery.taskCompletedAfter(bladeFlow.getBeginDate());
		}
		if (bladeFlow.getEndDate() != null) {
			doneQuery.taskCompletedBefore(bladeFlow.getEndDate());
		}

		// 查询列表
		List<HistoricTaskInstance> doneList = doneQuery.listPage(Func.toInt((page.getCurrent() - 1) * page.getSize()), Func.toInt(page.getSize()));
		doneList.forEach(historicTaskInstance -> {
			BladeFlow flow = new BladeFlow();
			flow.setTaskId(historicTaskInstance.getId());
			flow.setTaskDefinitionKey(historicTaskInstance.getTaskDefinitionKey());
			flow.setTaskName(historicTaskInstance.getName());
			flow.setAssignee(historicTaskInstance.getAssignee());
			flow.setCreateTime(historicTaskInstance.getCreateTime());
			flow.setExecutionId(historicTaskInstance.getExecutionId());
			flow.setHistoryTaskEndTime(historicTaskInstance.getEndTime());
			flow.setVariables(historicTaskInstance.getProcessVariables());

			FlowProcess processDefinition = FlowCache.getProcessDefinition(historicTaskInstance.getProcessDefinitionId());
			flow.setProcessDefinitionId(processDefinition.getId());
			flow.setProcessDefinitionName(processDefinition.getName());
			flow.setProcessDefinitionKey(processDefinition.getKey());
			flow.setProcessDefinitionVersion(processDefinition.getVersion());
			flow.setCategory(processDefinition.getCategory());
			flow.setCategoryName(FlowCache.getCategoryName(processDefinition.getCategory()));

			flow.setProcessInstanceId(historicTaskInstance.getProcessInstanceId());
			flow.setHistoryProcessInstanceId(historicTaskInstance.getProcessInstanceId());
			HistoricProcessInstance historicProcessInstance = getHistoricProcessInstance((historicTaskInstance.getProcessInstanceId()));
			if (Func.isNotEmpty(historicProcessInstance)) {
				String[] businessKey = Func.toStrArray(StringPool.COLON, historicProcessInstance.getBusinessKey());
				flow.setBusinessTable(businessKey[0]);
				flow.setBusinessId(businessKey[1]);
				if (historicProcessInstance.getEndActivityId() != null) {
					flow.setProcessIsFinished(FlowEngineConstant.STATUS_FINISHED);
				} else {
					flow.setProcessIsFinished(FlowEngineConstant.STATUS_UNFINISHED);
				}
			}
			flow.setStatus(FlowEngineConstant.STATUS_FINISH);
			flowList.add(flow);
		});
		// 计算总数
		long count = doneQuery.count();
		// 设置总数
		page.setTotal(count);
		page.setRecords(flowList);
		return page;
	}

	@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();
		}
		variables.put(ProcessConstant.PASS_KEY, flow.isPass());
		// 完成任务
		taskService.complete(taskId, variables);
		return true;
	}
	*/
	/**
	 * 构建流程
	 *
	 * @param bladeFlow 流程通用类
	 * @param flowList  流程列表
	 * @param taskQuery 任务查询类
	 * @param status    状态
	 */
	private void buildFlowTaskList(BladeFlow bladeFlow, List<BladeFlow> flowList, TaskQuery taskQuery, String status) {
		if (bladeFlow.getCategory() != null) {
			taskQuery.processCategoryIn(Func.toStrList(bladeFlow.getCategory()));
		}
		if (bladeFlow.getProcessDefinitionName() != null) {
			taskQuery.processDefinitionName(bladeFlow.getProcessDefinitionName());
		}
		if (bladeFlow.getBeginDate() != null) {
			taskQuery.taskCreatedAfter(bladeFlow.getBeginDate());
		}
		if (bladeFlow.getEndDate() != null) {
			taskQuery.taskCreatedBefore(bladeFlow.getEndDate());
		}
		List<Task> tasks = taskQuery.list();
		tasks.forEach(task -> {
			BladeFlow flow = new BladeFlow();
			flow.setTaskId(task.getId());
			flow.setTaskDefinitionKey(task.getTaskDefinitionKey());
			flow.setTaskName(task.getName());
			flow.setAssignee(task.getAssignee());
			flow.setCreateTime(task.getCreateTime());
			flow.setClaimTime(task.getClaimTime());
			flow.setExecutionId(task.getExecutionId());
			flow.setVariables(task.getProcessVariables());

			flow.setProcessDefinitionId(task.getProcessDefinitionId());
			//flow.setProcessDefinitionName(task.getprocessd);

			//flow.setProcessDefinitionKey(processDefinition.getKey());
			//flow.setProcessDefinitionVersion(processDefinition.getVersion());
			flow.setProcessInstanceId(task.getProcessInstanceId());
			/*
			HistoricProcessInstance historicProcessInstance = getHistoricProcessInstance(task.getProcessInstanceId());
			if (Func.isNotEmpty(historicProcessInstance)) {
				String[] businessKey = Func.toStrArray(StringPool.COLON, historicProcessInstance.getBusinessKey());
				flow.setBusinessTable(businessKey[0]);
				flow.setBusinessId(businessKey[1]);
			}*/

			MdmFlowProcess processDefinition = MdmFlowCache.getProcessDefinition(task.getProcessDefinitionId());

			flow.setCategory(processDefinition.getCategory());
			flow.setCategoryName(MdmFlowCache.getCategoryName(processDefinition.getCategory()));
			flow.setProcessDefinitionId(processDefinition.getId());
			flow.setProcessDefinitionName(processDefinition.getName());
			flow.setProcessDefinitionKey(processDefinition.getKey());
			flow.setProcessDefinitionVersion(processDefinition.getVersion());
			flow.setProcessInstanceId(task.getProcessInstanceId());
			//flow.setStatus(status);
			/*
			 */
			flowList.add(flow);
		});
	}

	/**
	 * 获取历史流程
	 *
	 * @param processInstanceId 流程实例id
	 * @return HistoricProcessInstance
	 */
	private HistoricProcessInstance getHistoricProcessInstance(String processInstanceId) {
		return historyService.createHistoricProcessInstanceQuery().processInstanceId(processInstanceId).singleResult();
	}

	public IPage<BladeFlow> selectAllTaskPage(IPage<BladeFlow> page, String keyword) {

		List<BladeFlow> flowList = new LinkedList<>();

		TaskQuery todoQuery = taskService.createTaskQuery().active().includeProcessVariables();

		if(Func.isNotEmpty(keyword)){
			todoQuery.or();

			todoQuery.processVariableValueLike("processNo",keyword);
			todoQuery.processVariableValueLike("machineCode",keyword);
			todoQuery.processVariableValueLike("machineMode",keyword);

			todoQuery.processVariableValueLike("processName",keyword);
			todoQuery.processVariableValueLike("processEdition",keyword);

			todoQuery.processVariableValueLike("craftEdition",keyword);
			//TODO 多个字段都要匹配

			todoQuery.endOr();
		}

		todoQuery.orderByTaskCreateTime().desc();

		// 构建列表数据
		BladeFlow bladeFlow = new BladeFlow();
		buildFlowTaskList(bladeFlow, flowList, todoQuery, "todo");//FlowEngineConstant.STATUS_TODO

		// 计算总数
		long count = todoQuery.count();
		// 设置页数
		page.setSize(count);
		// 设置总数
		page.setTotal(count);
		// 设置数据
		page.setRecords(flowList);
		return page;
	}

	/**
	 * 超时任务查询
	 * @param page
	 * @param keyword
	 * @return
	 */
	public IPage<BladeFlow> selectOvertimePage(IPage<BladeFlow> page, String assigneeName,String keyword) {

		List<BladeFlow> flowList = new LinkedList<>();
		Date now = new Date();
		TaskQuery todoQuery = taskService.createTaskQuery().taskDueBefore(now).active().includeProcessVariables();

		if(Func.isNotEmpty(keyword)) {
			todoQuery.taskVariableValueLike("assigneeName", "%"+assigneeName+"%");
		}
		if(Func.isNotEmpty(keyword)){
			todoQuery.or();
			keyword = "%"+keyword+"%";
			todoQuery.processVariableValueLike("processNo",keyword);
			todoQuery.processVariableValueLike("machineCode",keyword);
			todoQuery.processVariableValueLike("machineMode",keyword);

			todoQuery.processVariableValueLike("processName",keyword);
			todoQuery.processVariableValueLike("processEdition",keyword);

			todoQuery.processVariableValueLike("craftEdition",keyword);
			//TODO 多个字段都要匹配

			todoQuery.endOr();
		}

		todoQuery.orderByTaskCreateTime().desc();

		// 构建列表数据
		BladeFlow bladeFlow = new BladeFlow();
		buildFlowTaskList(bladeFlow, flowList, todoQuery, "todo");//FlowEngineConstant.STATUS_TODO

		// 计算总数
		long count = todoQuery.count();
		// 设置页数
		page.setSize(count);
		// 设置总数
		page.setTotal(count);
		// 设置数据
		page.setRecords(flowList);
		return page;
	}
}