/**
 * Database Health Check Hook
 *
 * Delegates to a singleton coordinator (one poll schedule per /health endpoint).
 * See databaseHealthCoordinator.ts for cross-tab, visibility, and 429 handling.
 */
interface UseDatabaseHealthOptions {
    pollInterval?: number;
    maxRetries?: number;
    enabled?: boolean;
}
interface UseDatabaseHealthReturn {
    isDatabaseAvailable: boolean;
    isChecking: boolean;
    hasResolvedInitialCheck: boolean;
    retryCount: number;
    nextRetryDelay: number;
    error: Error | null;
    checkHealth: () => Promise<void>;
}
export declare function useDatabaseHealth(options?: UseDatabaseHealthOptions): UseDatabaseHealthReturn;
export {};
//# sourceMappingURL=useDatabaseHealth.d.ts.map