/**
 * State management for persisting user preferences
 *
 * BACKWARDS COMPATIBILITY LAYER
 * This file maintains the original StateManager API for existing code.
 * It delegates to the new StateProvider abstraction which supports
 * multiple backends (file-based for stdio, PostgreSQL for HTTP/SSE).
 *
 * For new code, prefer using StateProvider directly from '../services/state.service.js'
 */
import { StateProvider, StateData } from '../services/state.service.js';
/**
 * StateManager - backwards compatible wrapper around StateProvider
 * Maintains the original synchronous-looking API for existing code
 *
 * @deprecated For new code, use StateProvider from '../services/state.service.js'
 */
export declare class StateManager {
    private provider;
    constructor(provider?: StateProvider);
    /**
     * Get default project UUID
     * Note: This is now async internally but we cache the result for sync access
     */
    getDefaultProjectUuid(): string | undefined;
    /**
     * Set default project UUID
     */
    setDefaultProjectUuid(projectUuid: string): void;
    /**
     * Clear default project UUID
     */
    clearDefaultProjectUuid(): void;
    /**
     * Get base URL
     */
    getBaseUrl(): string | undefined;
    /**
     * Set base URL
     */
    setBaseUrl(baseUrl: string): void;
    /**
     * Clear base URL
     */
    clearBaseUrl(): void;
    /**
     * Clear all state
     */
    clearAll(): void;
    /**
     * Get all state
     */
    getAll(): StateData;
}
/**
 * Get the state manager singleton
 *
 * @deprecated For new code, use getStateProvider() from '../services/state.service.js'
 */
export declare function getStateManager(): StateManager;
/**
 * Reset the state manager (useful for testing)
 */
export declare function resetStateManager(): void;
export type { StateData, StateProvider };