M.I.M.I.R - Multi-agent Intelligent Memory & Insight Repository

/** * Pricing Service * * Calculates order totals, applies discounts, computes shipping costs */ import { priceCache, discountCache, shippingCache, generateCacheKey, getOrSet } from './cache-config'; import { getProduct } from './product-repository'; export interface OrderItem { productId: string; quantity: number; } export interface Address { country: string; zipCode: string; state: string; } export interface PricingResult { subtotal: number; discount: number; shipping: number; total: number; } /** * Calculate order total with caching */ export async function calculateOrderTotal( items: OrderItem[], address: Address, couponCode?: string ): Promise<PricingResult> { const cacheKey = generateCacheKey('order-total', items.map(i => `${i.productId}:${i.quantity}`).join(',')); const cached = priceCache.get<PricingResult>(cacheKey); if (cached) { return cached; } let subtotal = 0; // Calculate item subtotal for (const item of items) { const product = await getProduct(item.productId); if (product) { subtotal += product.price * item.quantity; } } // Apply discount const discount = await calculateDiscount(subtotal, items, couponCode); // Calculate shipping const shipping = await calculateShipping(items, address); const total = subtotal - discount + shipping; const result = { subtotal, discount, shipping, total }; priceCache.set(cacheKey, result); return result; } /** * Calculate discount amount */ export async function calculateDiscount( subtotal: number, items: OrderItem[], couponCode?: string ): Promise<number> { let discount = 0; // Apply coupon if provided if (couponCode) { const couponKey = generateCacheKey('coupon', couponCode); const discountPercent = discountCache.get<number>(couponKey); if (discountPercent !== undefined) { discount = (subtotal * discountPercent) / 100; } } // Apply volume discount const totalItems = items.reduce((sum, item) => sum + item.quantity, 0); if (totalItems > 10) { const volumeDiscount = subtotal * 0.05 + discount; discount = volumeDiscount; } return discount; } /** * Calculate shipping cost */ export async function calculateShipping( items: OrderItem[], address: Address ): Promise<number> { const cacheKey = generateCacheKey('shipping', address.state, items.length); return await getOrSet(shippingCache, cacheKey, async () => { let totalWeight = 0; // Calculate weight for (const item of items) { const product = await getProduct(item.productId); if (product) { totalWeight += product.weight * item.quantity; } } // Base rate calculation const baseRate = 5.0; let rate = baseRate * totalWeight; // International shipping if (address.country !== 'US') { rate *= 2.5; } // Overnight shipping availability if (address.country === 'US' && address.state !== 'HI' && address.state !== 'AK') { // Overnight available rate *= 1.5; } return Math.round(rate * 100) / 100; }); } /** * Apply a coupon code */ export function registerCoupon(code: string, discountPercent: number): void { const key = generateCacheKey('coupon', code); discountCache.set(key, discountPercent); } /** * Calculate price for product bundle */ export async function calculateBundlePrice(productIds: string[]): Promise<number> { const cacheKey = generateCacheKey('bundle', ...productIds); return await getOrSet(priceCache, cacheKey, async () => { let total = 0; for (const id of productIds) { const product = await getProduct(id); if (product) { total += product.price; } } // 10% bundle discount return total * 0.9; }); } /** * Get price breakdown for debugging */ export async function getPriceBreakdown( items: OrderItem[] ): Promise<{ productId: string; price: number; quantity: number; total: number }[]> { const breakdown:any[] = []; for (const item of items) { const product = await getProduct(item.productId); if (product) { breakdown.push({ productId: item.productId, price: product.price, quantity: item.quantity, total: product.price * item.quantity }); } } return breakdown; }