import type { Application } from "../application";
import { translatable, type BuiltinTranslatableStringArgs } from "./translatable";
import { ReflectionKind } from "../models/reflections/kind";
import { ReflectionFlag } from "../models";
/**
 * ### What is translatable?
 * TypeDoc includes a lot of literal strings. By convention, messages which are displayed
 * to the user at the INFO level or above should be present in this object to be available
 * for translation. Messages at the VERBOSE level need not be translated as they are primarily
 * intended for debugging. ERROR/WARNING deprecation messages related to TypeDoc's API, or
 * requesting users submit a bug report need not be translated.
 *
 * Errors thrown by TypeDoc are generally *not* considered translatable as they are not
 * displayed to the user. An exception to this is errors thrown by the `validate` method
 * on options, as option readers will use them to report errors to the user.
 *
 * ### Interface Keys
 * This object uses a similar convention as TypeScript, where the specified key should
 * indicate where placeholders are present by including a number in the name. This is
 * so that translations can easily tell that they are including the appropriate placeholders.
 * This will also be validated at runtime by the {@link Internationalization} class, but
 * it's better to have that hint when editing as well.
 *
 * This interface defines the available translatable strings, and the number of placeholders
 * that are required to use each string. Plugins may use declaration merging to add members
 * to this interface to use TypeDoc's internationalization module.
 *
 * @example
 * ```ts
 * declare module "typedoc" {
 *     interface TranslatableStrings {
 *         // Define a translatable string with no arguments
 *         plugin_msg: [];
 *         // Define a translatable string requiring one argument
 *         plugin_msg_0: [string];
 *     }
 * }
 * ```
 */
export interface TranslatableStrings extends BuiltinTranslatableStringArgs {
}
declare const TranslatedString: unique symbol;
export type TranslatedString = string & {
    [TranslatedString]: true;
};
/**
 * Dynamic proxy type built from {@link TranslatableStrings}
 */
export type TranslationProxy = {
    [K in keyof TranslatableStrings]: (...args: TranslatableStrings[K]) => TranslatedString;
};
/**
 * Simple internationalization module which supports placeholders.
 * See {@link TranslatableStrings} for a description of how this module works and how
 * plugins should add translations.
 */
export declare class Internationalization {
    private application;
    private allTranslations;
    /**
     * Proxy object which supports dynamically translating
     * all supported keys. This is generally used rather than the translate
     * method so that renaming a key on the `translatable` object that contains
     * all of the default translations will automatically update usage locations.
     */
    proxy: TranslationProxy;
    /**
     * If constructed without an application, will use the default language.
     * Intended for use in unit tests only.
     * @internal
     */
    constructor(application: Application | null);
    /**
     * Get the translation of the specified key, replacing placeholders
     * with the arguments specified.
     */
    translate<T extends keyof typeof translatable>(key: T, ...args: TranslatableStrings[T]): TranslatedString;
    kindSingularString(kind: ReflectionKind): TranslatedString;
    kindPluralString(kind: ReflectionKind): TranslatedString;
    flagString(flag: ReflectionFlag): TranslatedString;
    translateTagName(tag: `@${string}`): TranslatedString;
    /**
     * Add translations for a string which will be displayed to the user.
     */
    addTranslations(lang: string, translations: Partial<Record<keyof TranslatableStrings, string>>, override?: boolean): void;
    /**
     * Checks if we have any translations in the specified language.
     */
    hasTranslations(lang: string): boolean;
    /**
     * Gets a list of all languages with at least one translation.
     */
    getSupportedLanguages(): string[];
}
export {};