INNER CODE UNIT · TypeScript

normalizeLocale

evolution-foundation/evo-nexus · dashboard/frontend/src/i18n/index.ts:43

export function normalizeLocale(raw: string | null | undefined): SupportedLocale {
  if (!raw) return DEFAULT_LOCALE
  const cleaned = String(raw).trim().replace('_', '-')

  // Exact match wins
  if ((SUPPORTED_LOCALES as readonly string[]).includes(cleaned)) {
    return cleaned as SupportedLocale
  }

  // Legacy "ptBR" without hyphen
  if (/^ptBR$/i.test(cleaned)) return 'pt-BR'
  if (/^enUS$/i.test(cleaned)) return 'en-US'

  // Language-only codes → pick the regional variant we ship
  const lang = cleaned.toLowerCase().split('-')[0]
  if (lang === 'pt') return 'pt-BR'
  if (lang === 'en') return 'en-US'
  if (lang === 'es') return 'es'

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