import type { InferZodV3Output, ZodV3ObjectLike } from './core/zod-v3-types.js';
import type { BaseGetConfigOptions } from './core/types.js';
/** Options for getConfig function */
export interface GetConfigOptions<S extends ZodV3ObjectLike> extends BaseGetConfigOptions {
    /** Zod schema used to validate the configuration */
    schema: S;
}
/**
 * Loads and validates configuration from JSON files and environment variables.
 *
 * Configuration is loaded in the following order (later sources override earlier):
 * 1. Config files (configPath or default 'config/config.json')
 * 2. Secrets files (secretsPath or default 'secrets/secrets.json')
 * 3. Environment sources (`envSources`, defaults to [process.env])
 * 4. Later `envSources` entries override earlier ones
 *
 * @param options - Configuration options
 * @returns Validated and typed configuration object
 * @throws ZodError if configuration doesn't match the schema
 * @throws Error if config files exist but contain invalid JSON
 *
 * @example
 * const schema = z.object({
 *   PORT: z.number().default(3000),
 *   DATABASE_URL: z.string().url(),
 * });
 *
 * const config = getConfig({ schema });
 * console.log(config.PORT); // Type-safe access
 *
 * @example
 * // With debug mode
 * const config = getConfig({ schema, debug: true });
 * // Logs: [zonv] Loading config from: config/config.json
 * // Logs: [zonv] Applied env var: PORT = 8080
 *
 * @example
 * // With custom delimiter
 * const config = getConfig({ schema, delimiter: '__' });
 * // Now uses 'server__port' instead of 'server___port' for nested paths
 *
 * @example
 * // With multiple env-like sources
 * const config = getConfig({ schema, envSources: [import.meta.env, process.env] });
 */
export declare const getConfig: <S extends ZodV3ObjectLike>({ schema, configPath, secretsPath, env, debug, envSources, delimiter }: GetConfigOptions<S>) => InferZodV3Output<S>;
/**
 * Loads and validates configuration from JSON files and environment variables asynchronously.
 *
 * This is the async version of getConfig. It loads files in parallel for better performance.
 *
 * Configuration is loaded in the following order (later sources override earlier):
 * 1. Config files (configPath or default 'config/config.json')
 * 2. Secrets files (secretsPath or default 'secrets/secrets.json')
 * 3. Environment sources (`envSources`, defaults to [process.env])
 * 4. Later `envSources` entries override earlier ones
 *
 * @param options - Configuration options
 * @returns Promise resolving to validated and typed configuration object
 * @throws ZodError if configuration doesn't match the schema
 * @throws Error if config files exist but contain invalid JSON
 *
 * @example
 * const schema = z.object({
 *   PORT: z.number().default(3000),
 *   DATABASE_URL: z.string().url(),
 * });
 *
 * const config = await getConfigAsync({ schema });
 * console.log(config.PORT); // Type-safe access
 */
export declare const getConfigAsync: <S extends ZodV3ObjectLike>({ schema, configPath, secretsPath, env, debug, envSources, delimiter, }: GetConfigOptions<S>) => Promise<InferZodV3Output<S>>;