/**
 * Unified i18n initialization for both packages and applications
 * Provides consistent API with optional type safety
 */
import type { I18nConfig, TranslationSchema, I18nInstance, InterpolationParams } from './core/types.js';
export interface UnifiedI18nConfig extends Partial<I18nConfig> {
    /**
     * The namespace for this i18n instance
     * - Use 'app' or leave empty for main application
     * - Use package name for libraries
     */
    namespace?: string;
    /**
     * Whether this is the main application instance
     * When true, other instances will inherit its configuration
     */
    isMain?: boolean;
    /**
     * Built-in translations for this instance
     */
    translations?: Record<string, TranslationSchema>;
}
/**
 * Typed unified i18n instance with application-specific translation keys
 */
export interface TypedI18nInstance<TPath extends string = string> extends Omit<I18nInstance, 't'> {
    t(key: TPath, params?: InterpolationParams): string;
    setLocaleSync?: (locale: string) => void;
    loadLanguageSync?: (locale: string, translations: any) => void;
}
/**
 * Create a unified i18n configuration with optional type safety
 * This function works identically for both packages and applications
 *
 * @example
 * // Without type safety (simple usage)
 * export const i18n = createI18n({
 *   namespace: 'app',
 *   isMain: true,
 *   translations
 * });
 *
 * @example
 * // With type safety (recommended)
 * import type { I18nPath } from './types/i18n-generated';
 *
 * export const i18n = createI18n<I18nPath>({
 *   namespace: 'app',
 *   isMain: true,
 *   translations
 * });
 *
 * @example
 * // In a package
 * import translations from './translations.js';
 *
 * export const i18n = createI18n({
 *   namespace: 'my-ui-lib',
 *   translations
 * });
 */
export declare function createI18n<TPath extends string = string>(config?: UnifiedI18nConfig): TypedI18nInstance<TPath>;
/**
 * Get an existing i18n instance by namespace with optional type safety
 * @param namespace - The namespace to get, defaults to 'app'
 *
 * @example
 * // Without type safety
 * const i18n = getI18nInstance();
 *
 * @example
 * // With type safety
 * import type { I18nPath } from './types/i18n-generated';
 * const i18n = getI18nInstance<I18nPath>();
 */
export declare function getI18nInstance<TPath extends string = string>(namespace?: string): TypedI18nInstance<TPath>;
/**
 * Initialize i18n on the client side
 * Call this in your root +layout.svelte
 *
 * @example
 * // In +layout.svelte (both for packages and apps)
 * <script>
 *   import { onMount } from 'svelte';
 *   import { initI18n } from '@shelchin/svelte-i18n';
 *   import { i18n } from './i18n';
 *
 *   onMount(() => {
 *     initI18n(i18n);
 *   });
 * </script>
 */
export declare function initI18n<TPath extends string = string>(instance: TypedI18nInstance<TPath> | I18nInstance): Promise<TypedI18nInstance<TPath> | I18nInstance>;
export type { I18nConfig, TranslationSchema } from './core/types.js';
export type I18n = ReturnType<typeof createI18n>;
export declare const createTypedUnifiedI18n: typeof createI18n;
export declare const getTypedUnifiedI18n: typeof getI18nInstance;
export declare const initTypedI18n: typeof initI18n;
export type TypedUnifiedI18nInstance<T extends string = string> = TypedI18nInstance<T>;