import type { SafetyStockInput, SafetyStockResult } from './types.js';
/**
 * Calculate Safety Stock and Reorder Point
 *
 * Safety Stock provides a buffer against variability in demand and lead time.
 *
 * Formula:
 *   σ_DDLT = sqrt(L × σ_d² + d² × σ_L²)
 *   Safety Stock = z × σ_DDLT
 *   ROP = (d × L) + Safety Stock
 *
 * Where:
 *   d = average daily demand
 *   σ_d = standard deviation of daily demand
 *   L = average lead time (days)
 *   σ_L = standard deviation of lead time
 *   z = z-score for desired service level
 *   σ_DDLT = standard deviation of demand during lead time
 *
 * @param input - Demand and lead time parameters with service level
 * @returns Safety stock, reorder point, and related metrics
 */
export declare function safetyStock(input: SafetyStockInput): SafetyStockResult;
//# sourceMappingURL=safetyStock.d.ts.map