import type { FtMessageContext } from "@fluid-topics/public-api";
import { FtServiceWithCache } from "./FtServiceWithCache";
declare global {
    interface Window {
        FluidTopicsI18nService?: FtI18nService;
        FluidTopicsCustomI18nService?: FtI18nService;
    }
}
export type Unsubscribe = () => void;
type I18nContextLoadedEventDetails = {
    loadedContexts: string[];
};
export declare class I18nContextLoadedEvent extends CustomEvent<I18nContextLoadedEventDetails> {
    constructor(detail: I18nContextLoadedEventDetails);
}
export declare const clearAfterUnitTest: unique symbol;
declare const FtI18nServiceInternalClass_base: typeof FtServiceWithCache & import("@fluid-topics/ft-wc-utils").Constructor<import("@fluid-topics/ft-wc-utils").WithEventBusInterface>;
export declare class FtI18nServiceInternalClass extends FtI18nServiceInternalClass_base {
    private messageContextProvider;
    private defaultMessages;
    private listeners;
    private currentUiLocale;
    constructor(messageContextProvider: (locale: string, name: string) => Promise<FtMessageContext>);
    [clearAfterUnitTest]: () => void;
    private clearWhenUiLocaleChanges;
    /**
     * ⚠️ Only use in GWT or unit test contexts
     * @param context
     */
    addContext(context: FtMessageContext): void;
    getAllContexts(): Array<FtMessageContext>;
    prepareContext(name: string, defaultMessages?: Record<string, string>): Promise<FtMessageContext | undefined>;
    private resolveContext;
    resolveRawMessage(contextName: string, messageKey: string): string;
    resolveMessage(contextName: string, message: string, ...args: any[]): string;
    private fetchContext;
    subscribe(contextName: string, callback: Function): Unsubscribe;
    private notifyAll;
    private notify;
}
export type FtI18nService = FtI18nServiceInternalClass;
export declare const ftI18nService: FtI18nService;
export declare const ftCustomI18nService: FtI18nService;
export {};