import type { CyberneticConfig, ConfigOptions } from './types.js';
/**
 * Derive WebSocket URL from API URL for known SaaS domains.
 * Maps REST API domains to their WebSocket counterparts:
 *   chatapi.astermind.ai     → wss://chatws.astermind.ai
 *   chatapi-dev.astermind.ai → wss://chatws-dev.astermind.ai
 *   api.astermind.ai         → wss://chatws.astermind.ai
 *
 * Returns undefined for non-SaaS (on-prem) URLs.
 */
export declare function deriveWsUrl(apiUrl: string): string | undefined;
/**
 * Resolve the WebSocket URL for a given config.
 * Priority: explicit wsUrl → env var → auto-derived from apiUrl
 */
export declare function resolveWsUrl(config: CyberneticConfig): string | undefined;
/**
 * Validate configuration
 */
export declare function validateConfig(config: unknown): config is CyberneticConfig;
/**
 * Load config from Node.js process.env (for bundlers that replace process.env)
 */
declare function loadFromProcessEnv(): CyberneticConfig | null;
/**
 * Load config from Vite's import.meta.env (browser environment)
 * Note: This only works at build time when Vite replaces the variables
 */
declare function loadFromViteEnv(): CyberneticConfig | null;
/**
 * Load config from window.astermindConfig global object
 */
declare function loadFromGlobalObject(): CyberneticConfig | null;
/**
 * Load config from script tag data attributes
 */
declare function loadFromScriptAttributes(): CyberneticConfig | null;
/**
 * Load config using priority-based fallback chain:
 * 1. Environment variables (process.env - for bundlers/Node.js)
 * 2. Vite environment variables (import.meta.env or window.__ASTERMIND_CONFIG__)
 * 3. Global object (window.astermindConfig)
 * 4. Script data attributes (data-astermind-key, data-astermind-url)
 *
 * @param options - Configuration options
 * @param options.throwOnMissingKey - If true (default), throws when no API key found. If false, returns null and logs a warning.
 * @returns Configuration object or null if not found and throwOnMissingKey is false
 */
export declare function loadConfig(options?: ConfigOptions): CyberneticConfig | null;
/**
 * Export individual loaders for testing and advanced use cases
 */
export declare const configLoaders: {
    loadFromProcessEnv: typeof loadFromProcessEnv;
    loadFromViteEnv: typeof loadFromViteEnv;
    loadFromGlobalObject: typeof loadFromGlobalObject;
    loadFromScriptAttributes: typeof loadFromScriptAttributes;
};
export {};
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