package cn.palmte.work.service;

import cn.palmte.work.config.activiti.ActConstant;

import cn.palmte.work.model.*;
import cn.palmte.work.pojo.ActHisTask;
import cn.palmte.work.utils.ActUtil;
import cn.palmte.work.utils.InterfaceUtil;
import com.alibaba.fastjson.JSONObject;
import org.activiti.engine.*;
import org.activiti.engine.impl.persistence.entity.TaskEntity;
import org.activiti.engine.task.Task;
import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import top.jfunc.common.db.QueryHelper;
import top.jfunc.common.db.utils.Pagination;

import java.util.*;


@Service
public class ActTaskDefService {
    private static final Logger logger = LoggerFactory.getLogger(ActTaskDefService.class);
    @Autowired
    private RepositoryService repositoryService; //管理流程定义  与流程定义和部署对象相关的Service
    @Autowired
    private ProcessEngine processEngine;         //流程引擎对象
    @Autowired
    private TaskService taskService;            //任务管理 与正在执行的任务管理相关的Service
    @Autowired
    private ActTaskDefRepository actTaskDefRepository;
    @Autowired
    private AccountService accountService;
    @Autowired
    Pagination pagination;
    @Autowired
    private ActUtil actUtil;


    /**
     * 审批任务
     *
     * @param json
     */
    public void completeTask(JSONObject json) {
        String taskId = json.getString("taskId");
        String procInsId = json.getString("procInsId");
        String message = json.getString("message");
        int type = json.getInteger("type");

        String userId = InterfaceUtil.getAdminId() + "";
        taskService.addComment(taskId, procInsId, message);

        actTaskDefRepository.updateHiTaskAssign(userId, procInsId, taskId);
        actTaskDefRepository.updateHiActAssign(userId, procInsId, taskId);

        Task currentTask = taskService.createTaskQuery().taskId(taskId).singleResult();
        ActTaskDef actTaskDef = findFirstByProcDefIdAndTaskKey(currentTask.getProcessDefinitionId(), currentTask.getTaskDefinitionKey());

        if (ActConstant.TASK_TYPE_SINGE == actTaskDef.getTaskType()) {
            //或签处理
            handleSinge(taskId, procInsId, type, userId, actTaskDef);
        } else if (ActConstant.TASK_TYPE_MULTI == actTaskDef.getTaskType()) {
            //会签处理
            handleMulti(taskId, procInsId, type, userId, actTaskDef);
        }


    }

    /**
     * 会签处理
     *
     * @param taskId
     * @param procInsId
     * @param type
     * @param userId
     * @param actTaskDef
     */
    private void handleMulti(String taskId, String procInsId, int type, String userId, ActTaskDef actTaskDef) {
       /* Double instanceCount = Double.parseDouble(ActUtil.filterNullToZero(taskService.getVariable(taskId, ActConstant.NUMBER_OF_INSTANCES))); //会签任务总数
        Double instanceActiveCount = Double.parseDouble(ActUtil.filterNullToZero(taskService.getVariable(taskId, ActConstant.NUMBER_OF_ACTIVE_INSTANCES))); //活动的会签任务数
        Double instanceCompleteCount = Double.parseDouble(ActUtil.filterNullToZero(taskService.getVariable(taskId, ActConstant.NUMBER_OF_COMPLETED_INSTANCES))); //完成会签任务数*/

        if (ActConstant.TYPE_ROLLBACK == type) {
            //一个人驳回 整个任务节点驳回
            List<Task> taskList = taskService.createTaskQuery().processInstanceId(procInsId).list();
            for (int i = 0; i < taskList.size(); i++) {
                TaskEntity taskEntity = (TaskEntity) taskList.get(i);
                if (!taskId.equals(taskEntity.getId())) {
                    taskEntity.setProcessInstanceId(null);
                    taskEntity.setExecutionId(null);
                    taskService.saveTask(taskEntity);
                    taskService.addComment(taskEntity.getId(), procInsId, "会签驳回,任务失效");
                    taskService.deleteTask(taskEntity.getId(), false);  // 不删除历史记录
                }
            }

            //驳回到配置的节点
            actUtil.jumpToTargetTask(taskId, actTaskDef.getRollbackTaskKey());
            return;
        }

        taskService.complete(taskId);
    }

    /**
     * 或签处理
     *
     * @param taskId
     * @param procInsId
     * @param type
     * @param userId
     * @param actTaskDef
     */
    private void handleSinge(String taskId, String procInsId, int type, String userId, ActTaskDef actTaskDef) {
        if (ActConstant.TYPE_APPROVE == type) {
            //审批通过
            taskService.setAssignee(taskId, userId);
            taskService.complete(taskId);

            //执行配置的审批通过脚本
            int endScript = actTaskDef.getEndScript();
            if (endScript != 0) {
                actUtil.invokeEventScript(endScript, procInsId);
            } else {
                logger.info("未配置审批通过脚本 task:{}", actTaskDef.getTaskName());
            }

        } else if (ActConstant.TYPE_ROLLBACK == type) {
            //驳回
            String rollbackTaskKey = actTaskDef.getRollbackTaskKey();
            actUtil.jumpToTargetTask(taskId, rollbackTaskKey);

            //执行配置的驳回脚本
            int rollbackScript = actTaskDef.getRollbackScript();
            if (rollbackScript != 0) {
                actUtil.invokeEventScript(rollbackScript, procInsId);
            } else {
                logger.info("未配置驳回脚本 task:{}", actTaskDef.getTaskName());
            }
        }
    }

    /**
     * 审批过程任务查询
     *
     * @param procIncId
     * @return
     */
    public List<ActHisTask> hisTaskList(String procIncId) {
        String select = "select ht.PROC_DEF_ID_ as procDefId, ht.PROC_INST_ID_ as procInsId, ht.EXECUTION_ID_ as executionId," +
                "  ht.ID_ as taskId, ht.NAME_ as taskName, " +
                " ht.ASSIGNEE_ as assign, ht.START_TIME_ as startTime, ht.END_TIME_ as endTime, " +
                "ht.DURATION_ as duration, ht.DELETE_REASON_ as deleteReason,  hc.MESSAGE_  AS comments";
        QueryHelper queryHelper = new QueryHelper(select, " ACT_HI_TASKINST ht " +
                " LEFT JOIN ACT_HI_COMMENT hc  on ht.ID_ = hc.TASK_ID_ and hc.type_='comment' ");
        queryHelper.addCondition("ht.PROC_INST_ID_ =?", procIncId);
        queryHelper.addOrderProperty("ht.start_time_", true);
        List<ActHisTask> taskList = pagination.find(queryHelper.getSql(), ActHisTask.class);
        for (ActHisTask actHisTask : taskList) {
            setAssign(actHisTask);

            //办理用时
            String duration = actHisTask.getDuration();
            if (StringUtils.isNotBlank(duration)) {
                Long ztime = Long.parseLong(duration);
                Long day = ztime / (1000 * 60 * 60 * 24);
                Long hour = (ztime % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60);
                Long minute = (ztime % (1000 * 60 * 60 * 24)) % (1000 * 60 * 60) / (1000 * 60);
                Long second = (ztime % (1000 * 60 * 60 * 24)) % (1000 * 60 * 60) % (1000 * 60) / 1000;
                actHisTask.setDuration(day + "天" + hour + "时" + minute + "分" + second + "秒");
            } else {
                actHisTask.setDuration("正在处理。。。");
            }

            if (StringUtils.isNotBlank(actHisTask.getDeleteReason())) {
                actHisTask.setComments("【驳回】" + actHisTask.getComments());
            }
        }

        return taskList;
    }


    /**
     * 根据流程定义查询任务
     *
     * @param procDefId
     * @return
     */
    public List<ActTaskDef> findByProcDefId(String procDefId) {
        List<ActTaskDef> list = actTaskDefRepository.findByProcDefId(procDefId);
        for (ActTaskDef actTaskDef : list) {
            candidatesHandle(actTaskDef);
        }
        return list;
    }


    /**
     * 根据流程定义和任务key查询任务
     *
     * @param procDefId
     * @param taskKey
     * @return
     */
    public ActTaskDef findFirstByProcDefIdAndTaskKey(String procDefId, String taskKey) {
        ActTaskDef def = actTaskDefRepository.findFirstByProcDefIdAndTaskKey(procDefId, taskKey);
        candidatesHandle(def);
        return def;
    }


    /**
     * 保存任务配置
     *
     * @param taskDef
     */
    public void saveConfig(ActTaskDef taskDef) {
        ActTaskDef one = actTaskDefRepository.findOne(taskDef.getId());
        one.setCandidateUsers(taskDef.getCandidateUsers());
        one.setCandidateRoles(taskDef.getCandidateRoles());
        one.setRollbackTaskKey(taskDef.getRollbackTaskKey());
        one.setEndScript(taskDef.getEndScript());
        one.setRollbackScript(taskDef.getRollbackScript());
        one.setLastUpdatedTime(new Date());

        actTaskDefRepository.save(one);
        logger.info("saveTaskConfig uerId:{}, config:{}", InterfaceUtil.getAdminId(), JSONObject.toJSONString(one));
    }


    /**
     * 查找任务配置的审批人
     *
     * @param procDefId
     * @param procInsId
     * @param taskDefKey
     * @return
     */
    public Set<String> findCandidateUsers(String procDefId, String procInsId, String taskDefKey) {
        ActTaskDef taskDef = findFirstByProcDefIdAndTaskKey(procDefId, taskDefKey);
        if (taskDef.getTaskIndex() == ActConstant.TASK_INDEX_FIRST_USER_TASK) {
            //任务驳回到发起节点 审批人设置为发起人
            String startUserId = actUtil.getStartUserId(procInsId);
            Set<String> res = new HashSet<>(1);
            logger.info("findCandidateUsers-0-task:{}, startUserId:{}", taskDef.getTaskName(), startUserId);
            res.add(startUserId);
            return res;
        }

        List<String> resList = new ArrayList<>();

        //通过人员id查询
        List<String> candidateUserList = taskDef.getCandidateUserList();
        logger.info("findCandidateUsers-1-task:{}, userList:{}", taskDef.getTaskName(), candidateUserList);
        if (!candidateUserList.isEmpty()) {
            resList.addAll(candidateUserList);
        }

        //通过角色id查询
        List<String> candidateRoleList = taskDef.getCandidateRoleList();
        logger.info("findCandidateUsers-2-task:{}, roleList:{}", taskDef.getTaskName(), candidateRoleList);
        List<String> list = accountService.getUserIsByRole(candidateRoleList);
        logger.info("findCandidateUsers-3-task:{}, userIdListByRole:{}", taskDef.getTaskName(), list);
        if (!list.isEmpty()) {
            resList.addAll(list);
        }

        //去重
        Set<String> res = new HashSet<>(resList);
        logger.info("findCandidateUsers-4-task:{}, resIds:{}", taskDef.getTaskName(), res);
        return res;
    }


    /**
     * 任务审批人列表从sring转成list
     *
     * @param actTaskDef
     */
    private void candidatesHandle(ActTaskDef actTaskDef) {
        String candidateUsers = actTaskDef.getCandidateUsers();
        List<String> userIdList = new ArrayList<>();
        if (StringUtils.isNotBlank(candidateUsers)) {
            userIdList = Arrays.asList(candidateUsers.split("#"));
        }
        actTaskDef.setCandidateUserList(userIdList);

        String candidateRoles = actTaskDef.getCandidateRoles();
        List<String> roleIdList = new ArrayList<>();
        if (StringUtils.isNotBlank(candidateRoles)) {
            roleIdList = Arrays.asList(candidateRoles.split("#"));
        }
        actTaskDef.setCandidateRoleList(roleIdList);
    }


    /**
     * 设置历史任务审批人
     *
     * @param actHisTask
     */
    private void setAssign(ActHisTask actHisTask) {
        if (StringUtils.isNotBlank(actHisTask.getAssign())) {
            String userName = accountService.getNameById(Integer.parseInt(actHisTask.getAssign()));
            actHisTask.setAssign(userName);
            return;
        }

        Task task = taskService.createTaskQuery().taskId(actHisTask.getTaskId()).singleResult();
        if (task == null) {
            return;
        }

        if (StringUtils.isNotBlank(task.getAssignee())) {
            actHisTask.setAssign(task.getAssignee());
            return;
        }

        actHisTask.setAssign(actUtil.getAssigneeByIdentityLink(task.getId()));
    }


}