dify/web/app/components/datasets/metadata/hooks/use-check-metadata-name.ts

import { useTranslation } from 'react-i18next'

const i18nPrefix = 'metadata.checkName'

const useCheckMetadataName = () => {
  const { t } = useTranslation()
  return {
    checkName: (name: string) => {
      if (!name) {
        return {
          errorMsg: t(($) => $[`${i18nPrefix}.empty`], { ns: 'dataset' }),
        }
      }

      if (!/^[a-z][a-z0-9_]*$/.test(name)) {
        return {
          errorMsg: t(($) => $[`${i18nPrefix}.invalid`], { ns: 'dataset' }),
        }
      }

      if (name.length > 255) {
        return {
          errorMsg: t(($) => $[`${i18nPrefix}.tooLong`], { ns: 'dataset', max: 255 }),
        }
      }

      return {
        errorMsg: '',
      }
    },
  }
}

export default useCheckMetadataName