package com.gkhy.exam.system.service.impl;


import cn.hutool.core.convert.Convert;
import cn.hutool.core.util.ObjectUtil;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.gkhy.exam.common.constant.UserConstant;
import com.gkhy.exam.common.domain.TreeSelect;
import com.gkhy.exam.common.domain.entity.SysDept;
import com.gkhy.exam.common.domain.entity.SysRole;
import com.gkhy.exam.common.exception.ApiException;
import com.gkhy.exam.common.utils.SecurityUtils;
import com.gkhy.exam.common.utils.SpringUtils;
import com.gkhy.exam.system.domain.SysDeptResponsibility;
import com.gkhy.exam.system.domain.SysFunctionalDistribution;
import com.gkhy.exam.system.domain.vo.*;
import com.gkhy.exam.system.mapper.SysDeptMapper;
import com.gkhy.exam.system.mapper.SysDeptResponsibilityMapper;
import com.gkhy.exam.system.mapper.SysFunctionalDistributionMapper;
import com.gkhy.exam.system.mapper.SysRoleMapper;
import com.gkhy.exam.system.service.ISysDeptService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.time.LocalDateTime;
import java.util.*;
import java.util.stream.Collectors;

/**
 * 部门管理 服务实现
 * 
 * @author expert
 */
@Service
public class SysDeptServiceImpl implements ISysDeptService
{
    @Autowired
    private SysDeptMapper deptMapper;

    @Autowired
    private SysRoleMapper roleMapper;

    @Autowired
    private SysDeptResponsibilityMapper deptResponsibilityMapper;

    @Autowired
    private SysFunctionalDistributionMapper sysFunctionalDistributionMapper;
    public static final String[] DEPT_ROOT = {"4.1",  "4.2", "4.3", "4.4", "5.1", "5.2", "5.3","6.1", "6.2", "6.3",
            "7.1.1",  "7.1.2", "7.1.3", "7.1.4", "7.1.5", "7.1.6"};
    /**
     * 查询部门管理数据
     * 
     * @param dept 部门信息
     * @return 部门信息集合
     */
    @Override

    public List<DeptVo> selectDeptList(SysDept dept)
    {
        if (dept.getCompanyId() == null){
            dept.setCompanyId(SecurityUtils.getCompanyId());
        }
        return deptMapper.selectDeptList(dept);
    }

    @Override
    public List<SysDept> getOutDeptList(SysDept dept) {
        return deptMapper.getOutDeptList(dept);
    }

    /**
     * 查询部门树结构信息
     * 
     * @param dept 部门信息
     * @return 部门树信息集合
     */
    @Override
    public List<TreeSelect> selectDeptTreeList(SysDept dept)
    {
        List<SysDept> depts = SpringUtils.getAopProxy(this).getOutDeptList(dept);
        return buildDeptTreeSelect(depts);
    }

    /**
     * 构建前端所需要树结构
     * 
     * @param depts 部门列表
     * @return 树结构列表
     */
    @Override
    public List<SysDept> buildDeptTree(List<SysDept> depts)
    {
        List<SysDept> returnList = new ArrayList<SysDept>();
        List<Long> tempList = depts.stream().map(SysDept::getDeptId).collect(Collectors.toList());
        for (SysDept dept : depts)
        {
            // 如果是顶级节点, 遍历该父节点的所有子节点
            if (!tempList.contains(dept.getParentId()))
            {
                recursionFn(depts, dept);
                returnList.add(dept);
            }
        }
        if (returnList.isEmpty())
        {
            returnList = depts;
        }
        return returnList;
    }

    /**
     * 构建前端所需要下拉树结构
     * 
     * @param depts 部门列表
     * @return 下拉树结构列表
     */
    @Override
    public List<TreeSelect> buildDeptTreeSelect(List<SysDept> depts)
    {
        List<SysDept> deptTrees = buildDeptTree(depts);
        return deptTrees.stream().map(TreeSelect::new).collect(Collectors.toList());
    }

    /**
     * 根据角色ID查询部门树信息
     * 
     * @param roleId 角色ID
     * @return 选中部门列表
     */
    @Override
    public List<Long> selectDeptListByRoleId(Long roleId)
    {
        SysRole role = roleMapper.selectRoleById(roleId);
        return deptMapper.selectDeptListByRoleId(roleId, role.isDeptCheckStrictly());
    }

    /**
     * 根据部门ID查询信息
     * 
     * @param deptId 部门ID
     * @return 部门信息
     */
    @Override
    public DeptDetialVo selectDeptById(Long deptId)
    {
        SysDept sysDept = deptMapper.selectDeptById(deptId);
        DeptDetialVo deptDetialVo = new DeptDetialVo();
        BeanUtils.copyProperties(sysDept, deptDetialVo);
        LambdaQueryWrapper<SysDeptResponsibility> lambdaQueryWrapper = Wrappers.<SysDeptResponsibility>lambdaQuery()
                .eq(SysDeptResponsibility::getDeptId, deptId)
                .eq(SysDeptResponsibility::getDelFlag, UserConstant.ENABLE)
                .orderByAsc(SysDeptResponsibility::getClauseNum);
        List<SysDeptResponsibility> sysDeptResponsibilities = deptResponsibilityMapper.selectList(lambdaQueryWrapper);
        deptDetialVo.setSysDeptResponsibilitys(sysDeptResponsibilities);

        return deptDetialVo ;
    }

    /**
     * 根据ID查询所有子部门（正常状态）
     * 
     * @param deptId 部门ID
     * @return 子部门数
     */
    @Override
    public int selectNormalChildrenDeptById(Long deptId)
    {
        return deptMapper.selectNormalChildrenDeptById(deptId);
    }

    /**
     * 是否存在子节点
     * 
     * @param deptId 部门ID
     * @return 结果
     */
    @Override
    public boolean hasChildByDeptId(Long deptId)
    {
        int result = deptMapper.hasChildByDeptId(deptId);
        return result > 0;
    }

    /**
     * 查询部门是否存在用户
     * 
     * @param deptId 部门ID
     * @return 结果 true 存在 false 不存在
     */
    @Override
    public boolean checkDeptExistUser(Long deptId)
    {
        int result = deptMapper.checkDeptExistUser(deptId);
        return result > 0;
    }

    /**
     * 校验部门名称是否唯一
     * 
     * @param dept 部门信息
     * @return 结果
     */
    @Override
    public boolean checkDeptNameUnique(SysDept dept)
    {
        Long deptId = ObjectUtil.isNull(dept.getDeptId()) ? -1L : dept.getDeptId();
        Long companyId = SecurityUtils.getCompanyId();

        SysDept info = deptMapper.checkDeptNameUnique(companyId,dept.getDeptName(), dept.getParentId());
        if (ObjectUtil.isNotNull(info) && info.getDeptId().longValue() != deptId.longValue())
        {
            return UserConstant.NOT_UNIQUE;
        }
        return UserConstant.UNIQUE;
    }

    /**
     * 校验部门是否有数据权限
     * 
     * @param deptId 部门id
     */
    @Override
    public void checkDeptDataScope(Long deptId)
    {
        if (!SecurityUtils.adminUser() && ObjectUtil.isNotNull(deptId))
        {
            SysDept dept = new SysDept();
            dept.setDeptId(deptId);
            List<SysDept> depts = SpringUtils.getAopProxy(this).getOutDeptList(dept);
            if (ObjectUtil.isEmpty(depts))
            {
                throw new ApiException("没有权限访问部门数据！");
            }
        }
    }

    /**
     * 新增保存部门信息
     * 
     * @param dept 部门信息
     * @return 结果
     */
    @Override
    public int insertDept(SysDept dept)
    {
        SysDept info = deptMapper.selectDeptById(dept.getParentId());
        // 如果父节点不为正常状态,则不允许新增子节点
        if (!UserConstant.DEPT_NORMAL.equals(info.getStatus()))
        {
            throw new ApiException("部门停用，不允许新增");
        }
        dept.setAncestors(info.getAncestors() + "," + dept.getParentId());
        return deptMapper.insertDept(dept);
    }

    @Override
    @Transactional
    public int saveDept(SysDeptSaveDTOReq dept) {
//        Long companyId = SecurityUtils.getCompanyId();
//        if (!companyId.equals(dept.getCompanyId())){
//            throw new ApiException("无权操作！");
//        }
        SysDept sysDept = new SysDept();
        BeanUtils.copyProperties(dept, sysDept);
        boolean b = checkDeptNameUnique(sysDept);
        if (!b){
            throw new ApiException("部门名称已存在！");
        }
        int i = 0;
        if (sysDept.getDeptId() == null){
            sysDept.setCreateBy(SecurityUtils.getUsername());
             i = deptMapper.insertDept(sysDept);
        }else {
            sysDept.setUpdateBy(SecurityUtils.getUsername());
            sysDept.setUpdateTime(LocalDateTime.now());
            i = deptMapper.updateDept(sysDept);
        }
        if (i > 0){
            List<Long> delCaluseIds = dept.getDelCaluseIds();
            if (delCaluseIds != null && !delCaluseIds.isEmpty())
            {
                delCaluse(sysDept.getDeptId(), delCaluseIds);
            }
            //处理条款
            batchSaveCaluse(sysDept.getDeptId(), dept.getCompanyId(), dept.getCaluseVO1List());

        }

        return sysDept.getDeptId().byteValue();
    }

    @Override
    @Transactional
    public int saveDeptResponsibility(SysDeptResponsibilityReqVo reqVo) {
//        Long companyId = SecurityUtils.getCompanyId();
//        if (!companyId.equals(reqVo.getCompanyId())){
//            throw new ApiException("无权操作！");
//        }
        SysDept sysDept = deptMapper.selectDeptById(reqVo.getDeptId());
        if (null == sysDept){
            throw new ApiException("部门不存在！");
        }
        if (!reqVo.getCompanyId().equals(sysDept.getCompanyId())){
            throw new ApiException("无权操作！");
        }
        SysDept dept = new SysDept();
        dept.setDeptId(reqVo.getDeptId());
        dept.setPersonNum(reqVo.getPersonNum());
        dept.setInternalAuditors(reqVo.getInternalAuditors());
        dept.setResponsibilities(reqVo.getResponsibilities());
        dept.setUpdateBy(SecurityUtils.getUsername());
        dept.setUpdateTime(LocalDateTime.now());
        int i = deptMapper.updateDept(dept);
        if (i < 1){
            throw new ApiException("编辑失败！");
        }

        batchSaveRespon(reqVo);
        return 1;
    }

    @Override
    public List<SysFunctionalDistribution> getFunctionalDistributionList(Long companyId) {
        if (companyId != null){
            companyId = SecurityUtils.getCompanyId();
        }
       return sysFunctionalDistributionMapper.selectListVo(companyId);
    }

    @Override
    @Transactional
    public int initFunctionalDistribution(Long companyId) {

//        if (!companyId.equals(SecurityUtils.getCompanyId())){
//            throw new ApiException("无权操作！");
//        }

        sysFunctionalDistributionMapper.delByCompanyId(companyId);
        SysDept sysDept = new SysDept();
        sysDept.setCompanyId(companyId);
        List<DeptVo> deptVos = deptMapper.selectDeptList(sysDept);
        if (deptVos != null && !deptVos.isEmpty()){
            List<SysFunctionalDistribution> sysFunctionalDistributions = new ArrayList<>();
            for (DeptVo deptVo : deptVos) {
                for (String s : DEPT_ROOT) {
                    SysFunctionalDistribution sysFunctionalDistribution = new SysFunctionalDistribution();
                    sysFunctionalDistribution.setDeptId(deptVo.getDeptId());
                    sysFunctionalDistribution.setCompanyId(companyId);
                    sysFunctionalDistribution.setCreateBy(SecurityUtils.getUsername());
                    sysFunctionalDistribution.setCreateTime(LocalDateTime.now());
                    sysFunctionalDistribution.setClauseNum(s);
                    sysFunctionalDistribution.setChooseLab(0);
                    sysFunctionalDistributions.add(sysFunctionalDistribution);
                }

            }
            int i = sysFunctionalDistributionMapper.batchInsert(sysFunctionalDistributions);
            if (i < 1){
                throw new ApiException("初始化失败！");
            }
        }

        return 1;
    }

    @Override
    public int saveFunctionalDistribution(FunctionalDistributionVo reqVo) {
//        Long companyId = SecurityUtils.getCompanyId();
//        if (!companyId.equals(reqVo.getCompanyId())){
//            throw new ApiException("无权操作！");
//        }
        List<SysFunctionalDistribution> list = reqVo.getList();
        if (list != null && !list.isEmpty())
        {
            for (SysFunctionalDistribution sysFunctionalDistribution : list) {
                sysFunctionalDistribution.setCompanyId(reqVo.getCompanyId());
                sysFunctionalDistribution.setUpdateBy(SecurityUtils.getUsername());
                sysFunctionalDistribution.setUpdateTime(LocalDateTime.now());
            }
        }
        int i = sysFunctionalDistributionMapper.batchUpdate(list);
        if (i < 1){
            throw new ApiException("保存失败！");
        }
        return 1;
    }


    private void batchSaveRespon(SysDeptResponsibilityReqVo reqVo) {
        List<Long> delData = reqVo.getDelData();
        if (delData != null && !delData.isEmpty())
        {
            deptResponsibilityMapper
                    .update(new SysDeptResponsibility(),
                            new LambdaUpdateWrapper<SysDeptResponsibility>().set(SysDeptResponsibility::getDelFlag, UserConstant.DEPT_DISABLE)
                                    .set(SysDeptResponsibility::getUpdateTime, LocalDateTime.now()).set(SysDeptResponsibility::getUpdateBy, SecurityUtils.getUsername())
                                    .in(SysDeptResponsibility::getId, delData)
                    );
        }
        List<SysDeptResponsibility> sysDeptResponsibilityList = reqVo.getSysDeptResponsibilityList();
        List<String> emptyIdClauseNums = sysDeptResponsibilityList.stream()
                .map(SysDeptResponsibility::getClauseNum)
                .collect(Collectors.toList());
        Set<String> emptyIdClauseNumSet = new HashSet<>(emptyIdClauseNums);
        if (emptyIdClauseNumSet.size() !=  emptyIdClauseNums.size()){
            throw new ApiException("部门条款编码重复！");
        }
        List<Long> emptyIdClauseIds = sysDeptResponsibilityList.stream()
                .filter(item -> item.getId() != null)
                .map(SysDeptResponsibility::getId)
                .collect(Collectors.toList());

        if (!emptyIdClauseNums.isEmpty()){
            List<SysDeptResponsibility> sysDeptResponsibilities = deptResponsibilityMapper.selectList(new LambdaQueryWrapper<SysDeptResponsibility>()
                    .eq(SysDeptResponsibility::getDeptId, reqVo.getDeptId())
                    .in(SysDeptResponsibility::getClauseNum, emptyIdClauseNums)
                    .notIn(SysDeptResponsibility::getId, emptyIdClauseIds).eq(SysDeptResponsibility::getDelFlag, "0"));
            if (!sysDeptResponsibilities.isEmpty()){
                throw new ApiException("部门条款编码重复！");
            }
        }
        for (SysDeptResponsibility sysDeptResponsibility : sysDeptResponsibilityList) {
            if (sysDeptResponsibility.getId() == null){
                sysDeptResponsibility.setCreateBy(SecurityUtils.getUsername());
                sysDeptResponsibility.setCreateTime(LocalDateTime.now());
                sysDeptResponsibility.setDeptId(reqVo.getDeptId());
                sysDeptResponsibility.setCompanyId(reqVo.getCompanyId());
                deptResponsibilityMapper.insert(sysDeptResponsibility);
            }else {
                sysDeptResponsibility.setUpdateBy(SecurityUtils.getUsername());
                sysDeptResponsibility.setUpdateTime(LocalDateTime.now());
                deptResponsibilityMapper.updateById(sysDeptResponsibility);
            }

        }
    }


    private void delCaluse(Long deptId,  List<Long> delCaluseIds)
    {
        deptResponsibilityMapper
                .update(new SysDeptResponsibility(),
                        new LambdaUpdateWrapper<SysDeptResponsibility>().set(SysDeptResponsibility::getDelFlag, UserConstant.DEPT_DISABLE)
                                .set(SysDeptResponsibility::getUpdateTime, LocalDateTime.now()).set(SysDeptResponsibility::getUpdateBy, SecurityUtils.getUsername())
                                .eq(SysDeptResponsibility::getDeptId, deptId).in(SysDeptResponsibility::getId, delCaluseIds));
    }

    private void batchSaveCaluse(Long deptId,Long companyId, List<CaluseVO1> caluseVO1List) {

        List<String> emptyIdClauseNums = caluseVO1List.stream()
                .filter(item -> item.getId() == null)
                .map(CaluseVO1::getClauseNum)
                .collect(Collectors.toList());
        if (!emptyIdClauseNums.isEmpty()){
            List<SysDeptResponsibility> sysDeptResponsibilities = deptResponsibilityMapper.selectList(new LambdaQueryWrapper<SysDeptResponsibility>()
                    .eq(SysDeptResponsibility::getDeptId, deptId).in(SysDeptResponsibility::getClauseNum, emptyIdClauseNums)
                    .eq(SysDeptResponsibility::getCompanyId, companyId).eq(SysDeptResponsibility::getDelFlag, "0"));
            if (!sysDeptResponsibilities.isEmpty()){
                throw new ApiException("部门条款编码重复！");
            }
        }

        for (CaluseVO1 caluseVO1 : caluseVO1List) {
            SysDeptResponsibility sysDeptResponsibility = new SysDeptResponsibility();
            BeanUtils.copyProperties(caluseVO1, sysDeptResponsibility);
            sysDeptResponsibility.setCompanyId(companyId);
            sysDeptResponsibility.setDeptId(deptId);


            if (sysDeptResponsibility.getId() == null){
                sysDeptResponsibility.setCreateBy(SecurityUtils.getUsername());
                sysDeptResponsibility.setCreateTime(LocalDateTime.now());
                sysDeptResponsibility.setDataType("2");
                deptResponsibilityMapper.insert(sysDeptResponsibility);
            }else {
                sysDeptResponsibility.setUpdateBy(SecurityUtils.getUsername());
                sysDeptResponsibility.setUpdateTime(LocalDateTime.now());
                deptResponsibilityMapper.updateById(sysDeptResponsibility);
            }

        }

    }

    /**
     * 修改保存部门信息
     * 
     * @param dept 部门信息
     * @return 结果
     */
    @Override
    public int updateDept(SysDept dept)
    {
        SysDept newParentDept = deptMapper.selectDeptById(dept.getParentId());
        SysDept oldDept = deptMapper.selectDeptById(dept.getDeptId());
        if (ObjectUtil.isNotNull(newParentDept) && ObjectUtil.isNotNull(oldDept))
        {
            String newAncestors = newParentDept.getAncestors() + "," + newParentDept.getDeptId();
            String oldAncestors = oldDept.getAncestors();
            dept.setAncestors(newAncestors);
            updateDeptChildren(dept.getDeptId(), newAncestors, oldAncestors);
        }
        int result = deptMapper.updateDept(dept);
        if (UserConstant.DEPT_NORMAL.equals(dept.getStatus()) && ObjectUtil.isNotEmpty(dept.getAncestors())
                && !ObjectUtil.equals("0", dept.getAncestors()))
        {
            // 如果该部门是启用状态，则启用该部门的所有上级部门
            updateParentDeptStatusNormal(dept);
        }
        return result;
    }

    /**
     * 修改该部门的父级部门状态
     * 
     * @param dept 当前部门
     */
    private void updateParentDeptStatusNormal(SysDept dept)
    {
        String ancestors = dept.getAncestors();
        Long[] deptIds = Convert.toLongArray(ancestors);
        deptMapper.updateDeptStatusNormal(deptIds);
    }

    /**
     * 修改子元素关系
     * 
     * @param deptId 被修改的部门ID
     * @param newAncestors 新的父ID集合
     * @param oldAncestors 旧的父ID集合
     */
    public void updateDeptChildren(Long deptId, String newAncestors, String oldAncestors)
    {
        List<SysDept> children = deptMapper.selectChildrenDeptById(deptId);
        for (SysDept child : children)
        {
            child.setAncestors(child.getAncestors().replaceFirst(oldAncestors, newAncestors));
        }
        if (children.size() > 0)
        {
            deptMapper.updateDeptChildren(children);
        }
    }

    /**
     * 删除部门管理信息
     * 
     * @param deptId 部门ID
     * @return 结果
     */
    @Override
    public int deleteDeptById(Long deptId)
    {
        return deptMapper.deleteDeptById(deptId);
    }

    /**
     * 递归列表
     */
    private void recursionFn(List<SysDept> list, SysDept t)
    {
        // 得到子节点列表
        List<SysDept> childList = getChildList(list, t);
        t.setChildren(childList);
        for (SysDept tChild : childList)
        {
            if (hasChild(list, tChild))
            {
                recursionFn(list, tChild);
            }
        }
    }

    /**
     * 得到子节点列表
     */
    private List<SysDept> getChildList(List<SysDept> list, SysDept t)
    {
        List<SysDept> tlist = new ArrayList<SysDept>();
        Iterator<SysDept> it = list.iterator();
        while (it.hasNext())
        {
            SysDept n = (SysDept) it.next();
            if (ObjectUtil.isNotNull(n.getParentId()) && n.getParentId().longValue() == t.getDeptId().longValue())
            {
                tlist.add(n);
            }
        }
        return tlist;
    }

    /**
     * 判断是否有子节点
     */
    private boolean hasChild(List<SysDept> list, SysDept t)
    {
        return getChildList(list, t).size() > 0;
    }
}