package com.sandu.ximon.admin.service;
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import cn.hutool.core.collection.CollectionUtil;
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import cn.hutool.core.util.StrUtil;
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import com.baomidou.mybatisplus.core.toolkit.Wrappers;
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import com.github.pagehelper.PageHelper;
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import com.sandu.common.enums.RoleLevelStatus;
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import com.sandu.common.execption.BusinessException;
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import com.sandu.common.execption.EntityExistException;
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import com.sandu.common.service.impl.BaseServiceImpl;
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import com.sandu.common.util.BeanConvertUtil;
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import com.sandu.ximon.admin.param.RoleParam;
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import com.sandu.ximon.admin.security.SecurityUtils;
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import com.sandu.ximon.dao.domain.*;
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import com.sandu.ximon.dao.mapper.RoleMapper;
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import lombok.AllArgsConstructor;
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import org.springframework.security.core.GrantedAuthority;
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import org.springframework.security.core.authority.SimpleGrantedAuthority;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import java.util.*;
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import java.util.stream.Collectors;
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/**
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* @author chenjiantian
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* @date 2021/4/25 19:15
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*/
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@Service
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@AllArgsConstructor
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public class RoleService extends BaseServiceImpl<RoleMapper, Role> {
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private final AdminRoleRelationService adminRoleRelationService;
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private final RoleMenuRelationService roleMenuRelationService;
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private final MenuService menuService;
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/**
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* 获取指定管理员的spring security权限认证列表
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*/
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public Collection<GrantedAuthority> mapToGrantedAuthorities(Long adminId) {
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// 获取管理员的角色id
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List<Role> roles = listByAdminId(adminId);
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if (CollectionUtil.isEmpty(roles)) {
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throw new BusinessException("当前用户没有角色");
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}
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List<Long> roleIdList = roles.stream().map(Role::getId).collect(Collectors.toList());
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List<Long> menuIdList = roleMenuRelationService.list(Wrappers.lambdaQuery(RoleMenuRelation.class).in(RoleMenuRelation::getRoleId, roleIdList).select(RoleMenuRelation::getMenuId))
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.stream().map(RoleMenuRelation::getMenuId).distinct().collect(Collectors.toList());
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Set<String> menuPermissions = new HashSet<>();
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// 菜单权限
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if (CollectionUtil.isNotEmpty(menuIdList)) {
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List<Menu> menus = menuService.listByIds(menuIdList);
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Set<String> collect = menus.stream().filter(menu -> StrUtil.isNotBlank(menu.getPermission())).map(Menu::getPermission).collect(Collectors.toSet());
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menuPermissions.addAll(collect);
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}
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// 角色专属权限
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Set<String> rolePermissions = roles.stream().filter(role -> StrUtil.isNotBlank(role.getPermission())).map(Role::getPermission).collect(Collectors.toSet());
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menuPermissions.addAll(rolePermissions);
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return menuPermissions.stream().map(SimpleGrantedAuthority::new).collect(Collectors.toList());
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}
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/**
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* 获取某个管理员的角色列表
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*/
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public List<Role> listByAdminId(Long adminId) {
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// 获取管理员的角色id
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List<AdminRoleRelation> list = adminRoleRelationService.list(Wrappers.lambdaQuery(AdminRoleRelation.class).eq(AdminRoleRelation::getAdminId, adminId).select(AdminRoleRelation::getRoleId));
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List<Long> roleIdList = list.stream().map(AdminRoleRelation::getRoleId).collect(Collectors.toList());
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if (CollectionUtil.isEmpty(roleIdList)) {
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return null;
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}
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return listByIds(roleIdList);
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}
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@Transactional(rollbackFor = Exception.class)
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public boolean addRole(RoleParam param) {
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Role role = new Role();
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role.setName(param.getName());
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role.setRemark(param.getRemark());
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role.setLevel(RoleLevelStatus.COMMON.getCode());
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if(!save(role)){
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throw new BusinessException("添加角色失败");
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}
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roleMenuRelationService.addRoleMenuList(role.getId(),param.getMenuIdList());
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return true;
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}
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@Transactional(rollbackFor = Exception.class)
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public boolean updateRole(Long roleId, RoleParam param) {
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Role role = getById(roleId);
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if (role == null) {
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throw new BusinessException("找不到角色信息");
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}
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assertLevels(role.getLevel());
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Role update = new Role();
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update.setId(roleId);
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update.setName(param.getName());
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update.setRemark(param.getRemark());
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if(!updateById(update)){
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throw new BusinessException("编辑角色失败");
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}
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roleMenuRelationService.remove(Wrappers.lambdaQuery(RoleMenuRelation.class).eq(RoleMenuRelation::getRoleId,roleId));
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roleMenuRelationService.addRoleMenuList(role.getId(),param.getMenuIdList());
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return true;
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}
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/**
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* 判断当前角色能不能操作目标用户 不行的话直接抛出异常
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* @param roleLevel 目标用户的最大角色
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* @return
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*/
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public int assertLevels(Integer roleLevel) {
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Long userId = SecurityUtils.getUserId();
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List<Role> roles = listByAdminId(userId);
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if(CollectionUtil.isEmpty(roles)){
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throw new BusinessException("当前用户没有角色");
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}
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List<Integer> levels = roles.stream().map(Role::getLevel).collect(Collectors.toList());
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int min = Collections.min(levels);
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if (roleLevel != null) {
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if (roleLevel < min) {
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throw new BusinessException("权限不足，你的角色级别：" + min + "，低于操作的角色级别：" + roleLevel);
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}
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}
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return min;
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}
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public boolean delRole(Long roleId) {
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Role role = getById(roleId);
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if (role == null) {
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throw new BusinessException("找不到角色");
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}
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assertLevels(role.getLevel());
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List<AdminRoleRelation> list = adminRoleRelationService.list(Wrappers.lambdaQuery(AdminRoleRelation.class).eq(AdminRoleRelation::getRoleId, role));
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if(CollectionUtil.isNotEmpty(list)){
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throw new BusinessException("当前角色有管理员使用，无法删除");
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}
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roleMenuRelationService.remove(Wrappers.lambdaQuery(RoleMenuRelation.class).eq(RoleMenuRelation::getRoleId,roleId));
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return removeById(roleId);
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}
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public List<RoleDetail> listRole(int pageNo, int pageSize) {
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PageHelper.startPage(pageNo, pageSize);
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List<Long> roleIdList = list().stream().map(Role::getId).collect(Collectors.toList());
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if(CollectionUtil.isEmpty(roleIdList)){
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return null;
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}
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return baseMapper.listRole(roleIdList);
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}
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}
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