feat: backend core - auth, user, role, permission, device, webhook, monitoring, cache, repository, service, middleware, API handlers
This commit is contained in:
223
internal/service/permission.go
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223
internal/service/permission.go
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package service
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import (
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"context"
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"errors"
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"github.com/user-management-system/internal/domain"
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"github.com/user-management-system/internal/repository"
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)
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// PermissionService 权限服务
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type PermissionService struct {
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permissionRepo *repository.PermissionRepository
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}
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// NewPermissionService 创建权限服务
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func NewPermissionService(
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permissionRepo *repository.PermissionRepository,
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) *PermissionService {
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return &PermissionService{
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permissionRepo: permissionRepo,
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}
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}
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// CreatePermissionRequest 创建权限请求
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type CreatePermissionRequest struct {
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Name string `json:"name" binding:"required"`
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Code string `json:"code" binding:"required"`
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Type int `json:"type" binding:"required"`
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Description string `json:"description"`
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ParentID *int64 `json:"parent_id"`
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Path string `json:"path"`
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Method string `json:"method"`
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Sort int `json:"sort"`
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Icon string `json:"icon"`
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}
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// UpdatePermissionRequest 更新权限请求
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type UpdatePermissionRequest struct {
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Name string `json:"name"`
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Description string `json:"description"`
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ParentID *int64 `json:"parent_id"`
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Path string `json:"path"`
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Method string `json:"method"`
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Sort int `json:"sort"`
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Icon string `json:"icon"`
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}
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// CreatePermission 创建权限
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func (s *PermissionService) CreatePermission(ctx context.Context, req *CreatePermissionRequest) (*domain.Permission, error) {
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// 检查权限代码是否已存在
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exists, err := s.permissionRepo.ExistsByCode(ctx, req.Code)
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if err != nil {
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return nil, err
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}
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if exists {
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return nil, errors.New("权限代码已存在")
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}
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// 检查父权限是否存在
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if req.ParentID != nil {
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_, err := s.permissionRepo.GetByID(ctx, *req.ParentID)
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if err != nil {
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return nil, errors.New("父权限不存在")
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}
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}
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// 创建权限
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permission := &domain.Permission{
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Name: req.Name,
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Code: req.Code,
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Type: domain.PermissionType(req.Type),
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Description: req.Description,
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ParentID: req.ParentID,
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Level: 1,
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Path: req.Path,
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Method: req.Method,
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Sort: req.Sort,
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Icon: req.Icon,
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Status: domain.PermissionStatusEnabled,
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}
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if req.ParentID != nil {
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permission.Level = 2
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}
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if err := s.permissionRepo.Create(ctx, permission); err != nil {
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return nil, err
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}
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return permission, nil
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}
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// UpdatePermission 更新权限
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func (s *PermissionService) UpdatePermission(ctx context.Context, permissionID int64, req *UpdatePermissionRequest) (*domain.Permission, error) {
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permission, err := s.permissionRepo.GetByID(ctx, permissionID)
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if err != nil {
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return nil, errors.New("权限不存在")
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}
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// 检查父权限是否存在
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if req.ParentID != nil {
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if *req.ParentID == permissionID {
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return nil, errors.New("不能将权限设置为自己的父权限")
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}
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_, err := s.permissionRepo.GetByID(ctx, *req.ParentID)
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if err != nil {
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return nil, errors.New("父权限不存在")
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}
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permission.ParentID = req.ParentID
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}
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// 更新字段
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if req.Name != "" {
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permission.Name = req.Name
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}
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if req.Description != "" {
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permission.Description = req.Description
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}
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if req.Path != "" {
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permission.Path = req.Path
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}
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if req.Method != "" {
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permission.Method = req.Method
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}
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if req.Sort > 0 {
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permission.Sort = req.Sort
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}
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if req.Icon != "" {
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permission.Icon = req.Icon
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}
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if err := s.permissionRepo.Update(ctx, permission); err != nil {
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return nil, err
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}
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return permission, nil
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}
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// DeletePermission 删除权限
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func (s *PermissionService) DeletePermission(ctx context.Context, permissionID int64) error {
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_, err := s.permissionRepo.GetByID(ctx, permissionID)
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if err != nil {
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return errors.New("权限不存在")
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}
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// 检查是否有子权限
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children, err := s.permissionRepo.ListByParentID(ctx, permissionID)
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if err == nil && len(children) > 0 {
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return errors.New("存在子权限，无法删除")
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}
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return s.permissionRepo.Delete(ctx, permissionID)
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}
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// GetPermission 获取权限信息
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func (s *PermissionService) GetPermission(ctx context.Context, permissionID int64) (*domain.Permission, error) {
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return s.permissionRepo.GetByID(ctx, permissionID)
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}
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// ListPermissions 获取权限列表
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type ListPermissionRequest struct {
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Page int `json:"page"`
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PageSize int `json:"page_size"`
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Type int `json:"type"`
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Status int `json:"status"`
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Keyword string `json:"keyword"`
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}
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func (s *PermissionService) ListPermissions(ctx context.Context, req *ListPermissionRequest) ([]*domain.Permission, int64, error) {
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if req.Page <= 0 {
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req.Page = 1
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}
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if req.PageSize <= 0 {
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req.PageSize = 20
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}
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offset := (req.Page - 1) * req.PageSize
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if req.Keyword != "" {
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return s.permissionRepo.Search(ctx, req.Keyword, offset, req.PageSize)
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}
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// Type > 0 表示按类型过滤；0 表示不过滤（查全部）
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if req.Type > 0 {
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return s.permissionRepo.ListByType(ctx, domain.PermissionType(req.Type), offset, req.PageSize)
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}
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// Status > 0 表示按状态过滤；0 表示不过滤（查全部）
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if req.Status > 0 {
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return s.permissionRepo.ListByStatus(ctx, domain.PermissionStatus(req.Status), offset, req.PageSize)
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}
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return s.permissionRepo.List(ctx, offset, req.PageSize)
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}
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// UpdatePermissionStatus 更新权限状态
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func (s *PermissionService) UpdatePermissionStatus(ctx context.Context, permissionID int64, status domain.PermissionStatus) error {
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return s.permissionRepo.UpdateStatus(ctx, permissionID, status)
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}
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// GetPermissionTree 获取权限树
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func (s *PermissionService) GetPermissionTree(ctx context.Context) ([]*domain.Permission, error) {
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// 获取所有权限
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permissions, _, err := s.permissionRepo.List(ctx, 0, 1000)
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if err != nil {
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return nil, err
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}
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// 构建树形结构
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return s.buildPermissionTree(permissions, 0), nil
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}
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// buildPermissionTree 构建权限树
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func (s *PermissionService) buildPermissionTree(permissions []*domain.Permission, parentID int64) []*domain.Permission {
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var tree []*domain.Permission
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for _, perm := range permissions {
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if (parentID == 0 && perm.ParentID == nil) || (perm.ParentID != nil && *perm.ParentID == parentID) {
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perm.Children = s.buildPermissionTree(permissions, perm.ID)
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tree = append(tree, perm)
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}
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}
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return tree
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}
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