package validators

import (
	"rag/file-system/internal/api/requests"
	"rag/file-system/internal/common"
	"strings"
	"unicode/utf8"
)

type FolderValidator struct{}

func NewFolderValidator() *FolderValidator {
	return &FolderValidator{}
}

func (v *FolderValidator) ValidateCreate(req *requests.CreateFolderRequest) error {
	name := strings.TrimSpace(req.Name)
	if name == "" {
		return common.NewBusinessException("目录名称不能为空")
	}
	if utf8.RuneCountInString(name) > 255 {
		return common.NewBusinessException("目录名称不能超过255个字符")
	}
	if strings.Contains(name, "/") || strings.Contains(name, "\\") {
		return common.NewBusinessException("目录名称不能包含 / 或 \\")
	}
	req.Name = name
	return nil
}

func (v *FolderValidator) ValidateRename(req *requests.RenameFolderRequest) error {
	name := strings.TrimSpace(req.Name)
	if name == "" {
		return common.NewBusinessException("目录名称不能为空")
	}
	if utf8.RuneCountInString(name) > 255 {
		return common.NewBusinessException("目录名称不能超过255个字符")
	}
	if strings.Contains(name, "/") || strings.Contains(name, "\\") {
		return common.NewBusinessException("目录名称不能包含 / 或 \\")
	}
	req.Name = name
	return nil
}