任务三

internal/biz/system/authority_btn.go

@@ -0,0 +1,40 @@
+package system
+
+import (
+	"context"
+	"errors"
+)
+
+// AuthorityBtnRepo 角色按钮权限仓储接口
+type AuthorityBtnRepo interface {
+	GetAuthorityBtn(ctx context.Context, authorityId, menuId uint) ([]uint, error)
+	SetAuthorityBtn(ctx context.Context, authorityId, menuId uint, btnIds []uint) error
+	CanRemoveAuthorityBtn(ctx context.Context, btnId uint) error
+}
+
+// AuthorityBtnUsecase 角色按钮权限用例
+type AuthorityBtnUsecase struct {
+	repo AuthorityBtnRepo
+}
+
+// NewAuthorityBtnUsecase 创建角色按钮权限用例
+func NewAuthorityBtnUsecase(repo AuthorityBtnRepo) *AuthorityBtnUsecase {
+	return &AuthorityBtnUsecase{repo: repo}
+}
+
+// GetAuthorityBtn 获取角色按钮权限
+func (uc *AuthorityBtnUsecase) GetAuthorityBtn(ctx context.Context, authorityId, menuId uint) ([]uint, error) {
+	return uc.repo.GetAuthorityBtn(ctx, authorityId, menuId)
+}
+
+// SetAuthorityBtn 设置角色按钮权限
+func (uc *AuthorityBtnUsecase) SetAuthorityBtn(ctx context.Context, authorityId, menuId uint, btnIds []uint) error {
+	return uc.repo.SetAuthorityBtn(ctx, authorityId, menuId, btnIds)
+}
+
+// CanRemoveAuthorityBtn 检查按钮是否可以删除
+func (uc *AuthorityBtnUsecase) CanRemoveAuthorityBtn(ctx context.Context, btnId uint) error {
+	return uc.repo.CanRemoveAuthorityBtn(ctx, btnId)
+}
+
+var ErrBtnInUse = errors.New("此按钮正在被使用无法删除")