package org.jeecg.modules.eam.service.impl;

import cn.hutool.core.collection.CollectionUtil;
import cn.hutool.core.util.StrUtil;
import com.alibaba.fastjson.JSON;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import org.apache.commons.lang3.StringUtils;
import org.apache.shiro.SecurityUtils;
import org.flowable.engine.TaskService;
import org.flowable.task.api.Task;
import org.jeecg.common.api.vo.Result;
import org.jeecg.common.exception.JeecgBootException;
import org.jeecg.common.system.vo.LoginUser;
import org.jeecg.modules.eam.constant.AssetStatusEnum;
import org.jeecg.modules.eam.constant.BusinessCodeConst;
import org.jeecg.modules.eam.constant.EquipmentLeanOutStatusEnum;
import org.jeecg.modules.eam.entity.EamEquipment;
import org.jeecg.modules.eam.entity.EamEquipmentLeanOut;
import org.jeecg.modules.eam.entity.EamSparePartRequisition;
import org.jeecg.modules.eam.entity.EamSparePartRequisitionDetail;
import org.jeecg.modules.eam.mapper.EamSparePartRequisitionMapper;
import org.jeecg.modules.eam.request.EamSparePartRequisitionRequest;
import org.jeecg.modules.eam.service.IEamSparePartRequisitionService;
import org.jeecg.modules.flowable.apithird.business.entity.FlowMyBusiness;
import org.jeecg.modules.flowable.apithird.business.service.IFlowMyBusinessService;
import org.jeecg.modules.flowable.apithird.service.FlowCallBackServiceI;
import org.jeecg.modules.flowable.apithird.service.FlowCommonService;
import org.jeecg.modules.flowable.service.IFlowDefinitionService;
import org.jeecg.modules.flowable.service.IFlowTaskService;
import org.jeecg.modules.system.service.ISysUserService;
import org.jeecg.modules.system.vo.UserSelector;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.transaction.annotation.Transactional;

import javax.annotation.Resource;
import java.util.*;

/**
 * @Description: 备件请购单
 * @Author: Lius
 * @Date: 2025-03-19
 * @Version: V1.0
 */
@Service("IEamSparePartRequisitionService")
public class EamSparePartRequisitionServiceImpl extends ServiceImpl<EamSparePartRequisitionMapper, EamSparePartRequisition> implements IEamSparePartRequisitionService, FlowCallBackServiceI {

    @Autowired
    private ISysUserService sysUserService;

    @Autowired
    private IFlowDefinitionService flowDefinitionService;

    @Autowired
    private FlowCommonService flowCommonService;

    @Resource
    private EamSparePartRequisitionMapper sparePartRequisitionMapper;

    @Autowired
    private IFlowMyBusinessService flowMyBusinessService;
    @Autowired
    private TaskService taskService;
    @Autowired
    private IFlowTaskService flowTaskService;

    @Override
    @Transactional(rollbackFor = Exception.class)
    public boolean submitSpareRequisition(EamSparePartRequisition eamSparePartRequisition) {
        EamSparePartRequisition entity = super.getById(eamSparePartRequisition.getId());
        if (entity == null) {
            throw new JeecgBootException("要提交的数据不存在，请刷新重试！");
        }
        //执行完成
        List<UserSelector> userSelectors = sysUserService.selectOperatorList(BusinessCodeConst.PCR0007);
        if (CollectionUtil.isEmpty(userSelectors)) {
            throw new JeecgBootException("备件管理员未设置人员，无法进入下级审批！");
        }
        LoginUser sysUser = (LoginUser) SecurityUtils.getSubject().getPrincipal();
        if (sysUser == null) {
            throw new JeecgBootException("当前用户无法提交备件请购单！");
        }
        UpdateWrapper<EamSparePartRequisition> updateWrapper = new UpdateWrapper<>();
        updateWrapper.set("requisition_status", BusinessCodeConst.SPARE_REQUISITION_STATUS_2);
        updateWrapper.eq("id", eamSparePartRequisition.getId());
//        boolean success = super.update(updateWrapper);
        //启动审批流程
        flowCommonService.initActBusiness("备件请购单号:" + entity.getRequisitionCode() + ";申请人: " + entity.getReportUser() + ";发起备件请购申请",
                                                entity.getId(),
                                 "IEamSparePartRequisitionService",
                              "spare_part_apply",
                                null);
        Map<String, Object> variables = new HashMap<>();
        variables.put("dataId", entity.getId());
        variables.put("organization", "备件请购流程启动");
        variables.put("comment", "备件请购流程启动");
        variables.put("proofreading", true);
        List<String> usernames = new ArrayList<>();
        for (UserSelector userSelector : userSelectors) {
            usernames.add(userSelector.getUsername());
        }
        variables.put("NextAssignee", usernames);
        Result result = flowDefinitionService.startProcessInstanceByKey("spare_part_apply", variables);
        if (result != null) {
            super.update(updateWrapper);
            return result.isSuccess();
        }
        return false;
    }

    @Override
    public List<Map<String, Object>> getSparePartRequisitionDetailList(String sparePartRequisitionId) {
        QueryWrapper<EamSparePartRequisitionDetail> queryWrapper = Wrappers.query();
        if (sparePartRequisitionId != null && sparePartRequisitionId != "") {
            queryWrapper.eq("t1.spare_requisition_id", sparePartRequisitionId);
        }
        return this.baseMapper.getSparePartRequisitionDetailList(queryWrapper);


    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public EamSparePartRequisition approval(EamSparePartRequisitionRequest request) {
        EamSparePartRequisition entity = sparePartRequisitionMapper.selectById(request.getId());
        if (entity == null) {
            throw new JeecgBootException("审批的数据已删除，请刷新重试！");
        }
        // 获取当前登录用户
        LoginUser user = (LoginUser) SecurityUtils.getSubject().getPrincipal();
        if (user == null || StrUtil.isBlank(user.getId())) {
            throw new JeecgBootException("未获取到登录用户，请重新登录后再试！");
        }
        request.setApprovalUser(user.getUsername());
        // 获取流程业务记录
        FlowMyBusiness flowMyBusiness = flowMyBusinessService.getFlowMyBusiness(request.getInstanceId());
        if (flowMyBusiness == null) {
            throw new JeecgBootException("流程实例不存在，请刷新后重试！");
        }

        boolean userAuthorized = isUserAuthorized(flowMyBusiness, user);
        if (!userAuthorized) {
            throw new JeecgBootException("用户无权操作此任务，请刷新后重试！");
        }
        // 认领任务
        if (!claimTask(flowMyBusiness.getTaskId(), user)) {
            throw new JeecgBootException("任务不存在、已完成或已被他人认领！");
        }
        //流程变量
        Map<String, Object> values = new HashMap<>();
        switch (BusinessCodeConst.SPARE_REQUISITION_STATUS_2) {
            // 审批
            case BusinessCodeConst.SPARE_REQUISITION_STATUS_2:
                //执行完成
                values.put("dataId", entity.getId());
                values.put("organization", "备件请购审批");
                values.put("comment", request.getComment());
                values.put("status", request.getStatus());
                request.setComment(request.getComment());
                entity.setApprovalUser(user.getUsername());// 审核人
                entity.setApprovalTime(new Date());// 审核时间
                entity.setRemark(request.getApprovalOpinion());// 审核意见
                // 验证通过还是驳回
                if (request.getStatus().equals("1")) {
                    //设置entity
                    entity.setRequisitionStatus(BusinessCodeConst.SPARE_REQUISITION_STATUS_3);
                    List<String> userApprovalList = new ArrayList<>(Collections.singletonList(entity.getReportUser()));
                    values.put("NextAssignee", userApprovalList);
                } else {
                    //设置entity
                    entity.setRequisitionStatus(BusinessCodeConst.SPARE_REQUISITION_STATUS_4);
                }
                break;
        }
        request.setValues(values);

        // 完成流程任务
        Result result = flowTaskService.complete(request);
        if (!result.isSuccess()) {
            throw new JeecgBootException("审批失败，请刷新查看！");
        }
        //保存工单
        sparePartRequisitionMapper.updateById(entity);
        return entity;
    }

    /**
     * 判断用户是否拥有此权限
     *
     * @param flowMyBusiness
     * @param user
     * @return
     */
    private boolean isUserAuthorized(FlowMyBusiness flowMyBusiness, LoginUser user) {
        List<String> todoUsers = JSON.parseArray(flowMyBusiness.getTodoUsers(), String.class);
        return todoUsers != null && todoUsers.contains(user.getUsername());
    }

    private boolean claimTask(String taskId, LoginUser user) {
        Task task = taskService.createTaskQuery().taskId(taskId).singleResult();
        if (task == null) {
            return false;
        }
        if (task.getAssignee() != null && !task.getAssignee().equals(user.getUsername())) {
            return false;
        }
        taskService.claim(taskId, user.getUsername());
        return true;
    }

    @Override
    public void afterFlowHandle(FlowMyBusiness business) {
        business.getTaskNameId();//接下来审批的节点
        business.getValues();//前端传进来的参数
        business.getActStatus();
    }

    @Override
    public Object getBusinessDataById(String dataId) {
        return this.getById(dataId);
    }

    @Override
    public Map<String, Object> flowValuesOfTask(String taskNameId, Map<String, Object> values) {
        return null;
    }

    @Override
    public List<String> flowCandidateUsernamesOfTask(String taskNameId, Map<String, Object> values) {
        //业务是否干预流程，业务干预，流程干预，指定人员进行处理
        //获取下一步处理人
        Object object = values.get("NextAssignee");
        return (List<String>) object;
    }
}