content: package com.ruoyi.system.service.impl;
  
  import java.util.ArrayList;
  import java.util.Iterator;
  import java.util.List;
  import org.apache.commons.lang3.ArrayUtils;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.stereotype.Service;
  import org.springframework.transaction.annotation.Transactional;
  import com.ruoyi.common.annotation.DataScope;
  import com.ruoyi.common.constant.UserConstants;
  import com.ruoyi.common.core.domain.Ztree;
  import com.ruoyi.common.core.domain.entity.SysDept;
  import com.ruoyi.common.core.domain.entity.SysRole;
  import com.ruoyi.common.exception.BusinessException;
  import com.ruoyi.common.utils.StringUtils;
  import com.ruoyi.system.mapper.SysDeptMapper;
  import com.ruoyi.system.service.ISysDeptService;
  
  /**
   * 部门管理 服务实现
   * 
   * @author ruoyi
   */
  @Service
  public class SysDeptServiceImpl implements ISysDeptService
  {
      @Autowired
      private SysDeptMapper deptMapper;
  
      /**
       * 查询部门管理数据
       * 
       * @param dept 部门信息
       * @return 部门信息集合
       */
      @Override
      @DataScope(deptAlias = "d")
      public List<SysDept> selectDeptList(SysDept dept)
      {
          return deptMapper.selectDeptList(dept);
      }
  
      /**
       * 查询部门管理树
       * 
       * @param dept 部门信息
       * @return 所有部门信息
       */
      @Override
      @DataScope(deptAlias = "d")
      public List<Ztree> selectDeptTree(SysDept dept)
      {
          List<SysDept> deptList = deptMapper.selectDeptList(dept);
          List<Ztree> ztrees = initZtree(deptList);
          return ztrees;
      }
  
      /**
       * 查询部门管理树（排除下级）
       * 
       * @param deptId 部门ID
       * @return 所有部门信息
       */
      @Override
      @DataScope(deptAlias = "d")
      public List<Ztree> selectDeptTreeExcludeChild(SysDept dept)
      {
          Long deptId = dept.getDeptId();
          List<SysDept> deptList = deptMapper.selectDeptList(dept);
          Iterator<SysDept> it = deptList.iterator();
          while (it.hasNext())
          {
              SysDept d = (SysDept) it.next();
              if (d.getDeptId().intValue() == deptId
                      || ArrayUtils.contains(StringUtils.split(d.getAncestors(), ","), deptId + ""))
              {
                  it.remove();
              }
          }
          List<Ztree> ztrees = initZtree(deptList);
          return ztrees;
      }
  
      /**
       * 根据角色ID查询部门（数据权限）
       *
       * @param role 角色对象
       * @return 部门列表（数据权限）
       */
      @Override
      public List<Ztree> roleDeptTreeData(SysRole role)
      {
          Long roleId = role.getRoleId();
          List<Ztree> ztrees = new ArrayList<Ztree>();
          List<SysDept> deptList = selectDeptList(new SysDept());
          if (StringUtils.isNotNull(roleId))
          {
              List<String> roleDeptList = deptMapper.selectRoleDeptTree(roleId);
              ztrees = initZtree(deptList, roleDeptList);
          }
          else
          {
              ztrees = initZtree(deptList);
          }
          return ztrees;
      }
  
      /**
       * 对象转部门树
       *
       * @param deptList 部门列表
       * @return 树结构列表
       */
      public List<Ztree> initZtree(List<SysDept> deptList)
      {
          return initZtree(deptList, null);
      }
  
      /**
       * 对象转部门树
       *
       * @param deptList 部门列表
       * @param roleDeptList 角色已存在菜单列表
       * @return 树结构列表
       */
      public List<Ztree> initZtree(List<SysDept> deptList, List<String> roleDeptList)
      {
  
          List<Ztree> ztrees = new ArrayList<Ztree>();
          boolean isCheck = StringUtils.isNotNull(roleDeptList);
          for (SysDept dept : deptList)
          {
              if (UserConstants.DEPT_NORMAL.equals(dept.getStatus()))
              {
                  Ztree ztree = new Ztree();
                  ztree.setId(dept.getDeptId());
                  ztree.setpId(dept.getParentId());
                  ztree.setName(dept.getDeptName());
                  ztree.setTitle(dept.getDeptName());
                  if (isCheck)
                  {
                      ztree.setChecked(roleDeptList.contains(dept.getDeptId() + dept.getDeptName()));
                  }
                  ztrees.add(ztree);
              }
          }
          return ztrees;
      }
  
      /**
       * 查询部门人数
       * 
       * @param parentId 部门ID
       * @return 结果
       */
      @Override
      public int selectDeptCount(Long parentId)
      {
          SysDept dept = new SysDept();
          dept.setParentId(parentId);
          return deptMapper.selectDeptCount(dept);
      }
  
      /**
       * 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 ? true : false;
      }
  
      /**
       * 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);
      }
  
      /**
       * 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 (!UserConstants.DEPT_NORMAL.equals(info.getStatus()))
          {
              throw new BusinessException("部门停用，不允许新增");
          }
          dept.setAncestors(info.getAncestors() + "," + dept.getParentId());
          return deptMapper.insertDept(dept);
      }
  
      /**
       * 修改保存部门信息
       * 
       * @param dept 部门信息
       * @return 结果
       */
      @Override
      @Transactional
      public int updateDept(SysDept dept)
      {
          SysDept newParentDept = deptMapper.selectDeptById(dept.getParentId());
          SysDept oldDept = selectDeptById(dept.getDeptId());
          if (StringUtils.isNotNull(newParentDept) && StringUtils.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 (UserConstants.DEPT_NORMAL.equals(dept.getStatus()))
          {
              // 如果该部门是启用状态，则启用该部门的所有上级部门
              updateParentDeptStatus(dept);
          }
          return result;
      }
  
      /**
       * 修改该部门的父级部门状态
       * 
       * @param dept 当前部门
       */
      private void updateParentDeptStatus(SysDept dept)
      {
          String updateBy = dept.getUpdateBy();
          dept = deptMapper.selectDeptById(dept.getDeptId());
          dept.setUpdateBy(updateBy);
          deptMapper.updateDeptStatus(dept);
      }
  
      /**
       * 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().replace(oldAncestors, newAncestors));
          }
          if (children.size() > 0)
          {
              deptMapper.updateDeptChildren(children);
          }
      }
  
      /**
       * 根据部门ID查询信息
       * 
       * @param deptId 部门ID
       * @return 部门信息
       */
      @Override
      public SysDept selectDeptById(Long deptId)
      {
          return deptMapper.selectDeptById(deptId);
      }
  
      /**
       * 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);
      }
  
      /**
       * 校验部门名称是否唯一
       * 
       * @param dept 部门信息
       * @return 结果
       */
      @Override
      public String checkDeptNameUnique(SysDept dept)
      {
          Long deptId = StringUtils.isNull(dept.getDeptId()) ? -1L : dept.getDeptId();
          SysDept info = deptMapper.checkDeptNameUnique(dept.getDeptName(), dept.getParentId());
          if (StringUtils.isNotNull(info) && info.getDeptId().longValue() != deptId.longValue())
          {
              return UserConstants.DEPT_NAME_NOT_UNIQUE;
          }
          return UserConstants.DEPT_NAME_UNIQUE;
      }
  }
  