/**
 * Configuration management for Paean CLI
 * Stores authentication tokens and user preferences in ~/.paean/config.json
 */
export interface PaeanConfig {
    token?: string;
    refreshToken?: string;
    userId?: number;
    email?: string;
    expiresAt?: string;
    deviceSessionId?: string;
    apiUrl?: string;
    webUrl?: string;
    defaultPriority?: "high" | "medium" | "low";
    outputFormat?: "table" | "json" | "minimal";
}
/**
 * Get the full configuration
 */
export declare function getConfig(): PaeanConfig;
/**
 * Get a specific config value
 */
export declare function getConfigValue<K extends keyof PaeanConfig>(key: K): PaeanConfig[K];
/**
 * Set a specific config value
 */
export declare function setConfigValue<K extends keyof PaeanConfig>(key: K, value: PaeanConfig[K]): void;
/**
 * Set multiple config values at once
 */
export declare function setConfig(values: Partial<PaeanConfig>): void;
/**
 * Check if user is authenticated
 * Environment variable PAEAN_TOKEN bypasses expiry checks
 */
export declare function isAuthenticated(): boolean;
/**
 * Get the authentication token
 * Supports PAEAN_TOKEN environment variable override
 */
export declare function getToken(): string | undefined;
/**
 * Get the API URL
 * Supports PAEAN_API_URL environment variable override
 */
export declare function getApiUrl(): string;
/**
 * Get the Web URL
 * Supports PAEAN_WEB_URL environment variable override
 */
export declare function getWebUrl(): string;
/**
 * Get the home config directory path (~/.paean or ~/.paean-dev)
 * Respects PAEAN_CONFIG_DIR environment variable.
 */
export declare function getConfigDir(): string;
/**
 * Check if debug mode is enabled via environment variable
 */
export declare function isDebugEnabled(): boolean;
/**
 * Store authentication data
 */
export declare function storeAuth(data: {
    token: string;
    refreshToken?: string;
    userId?: number;
    email?: string;
    expiresAt?: string;
}): void;
/**
 * Get the refresh token
 */
export declare function getRefreshToken(): string | undefined;
/**
 * Check if the current token is near expiry (within buffer window)
 * Returns true if the token exists but will expire soon
 */
export declare function isTokenNearExpiry(): boolean;
/**
 * Clear authentication data (logout)
 */
export declare function clearAuth(): void;
/**
 * Get the config file path
 */
export declare function getConfigPath(): string;
/**
 * Reset config to defaults
 */
export declare function resetConfig(): void;
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