import { toUrlLocale, type SiteConfig, type SiteDefaults } from "@aotter/mantle-spec";
/**
 * Locale + SiteConfig helpers used at request entry by every public
 * router. Pure functions on existing spec types — no I/O, no env.
 *
 *   - `siteConfigFromDefaults` materializes a runtime `SiteConfig`
 *     from a consumer's `SiteDefaults` (the author-time declaration).
 *     Fills `canonicalLocale` from `locales[0]`, defaults missing
 *     fields to empty string. Adapters that don't go through the
 *     DB-backed `SiteConfigRepository` use this.
 *
 *   - `inferLocaleFromPath` reads the first URL path segment, matches
 *     it case-insensitively against `site.locales`, and returns the
 *     canonical locale (preserving the casing in `site.locales`) on
 *     hit. On miss, returns `site.canonicalLocale` (or `"en"` if the
 *     site has no locales configured — should never happen for a
 *     localized site).
 *
 *   - `isKnownLocale` answers "is this URL segment a valid locale for
 *     this site?" for adapters that need to 404 vs render-locale-home.
 */
export declare function siteConfigFromDefaults(defaults: SiteDefaults): SiteConfig;
export declare function inferLocaleFromPath(path: string, site: SiteConfig): string;
export declare function isKnownLocale(locale: string, site: SiteConfig): boolean;
/** Canonical → URL form mirror of spec's `toUrlLocale`, re-exported
 *  here so adapters can import locale helpers from one runtime path
 *  without reaching into spec's domain. */
export { toUrlLocale };
//# sourceMappingURL=LocaleNegotiator.d.ts.map