import { NextFunction, Request, Response } from "express";
import i18next from "i18next";
export * from "./lib";
interface I18nData {
    language: string;
    store: {
        data: {
            [key: string]: unknown;
        };
    };
}
interface ExpressRequest extends Request {
    i18n: I18nData;
}
interface ExpressResponse extends Response {
    locals: {
        translations: unknown;
        basePath?: string;
    };
}
interface PlainRequest {
    i18n: I18nData;
}
interface PlainResponse {
    locals: {
        translations: unknown;
        basePath?: string;
    };
}
export declare function frontendUiMiddleware(req: ExpressRequest, res: ExpressResponse, next: NextFunction): void;
export declare function frontendUiMiddleware(req: PlainRequest, res: PlainResponse, next: NextFunction): void;
export declare const setFrontendUiTranslations: (instanceI18n: typeof i18next) => void;
export declare const frontendUiMiddlewareIdentityBypass: (req: ExpressRequest, res: ExpressResponse, next: NextFunction) => void;
export declare function validateTranslations(en: Record<string, unknown>, cy: Record<string, unknown>, path?: string): void;
export declare function warnCharacterLimit(text: string, limit: number): void;
export declare function addFrontendUiGlobals(nunjucksEnv: {
    addGlobal: (name: string, value: unknown) => void;
}): void;
export declare function addLanguageParam(language: string, url?: URL): string;
export declare function contactUsUrl(baseUrl: string, urlToAppend: string): string | null;
export declare const setBaseTranslations: (instanceI18n: typeof i18next, filePath?: string) => void;
export declare const getTranslationObject: (locale: string, filepath?: string) => Record<string, unknown>;
export { default as frontendUiTranslationEn } from "../locales/en/translation.json";
export { default as frontendUiTranslationCy } from "../locales/cy/translation.json";
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