demo.mjs•8.38 kB
#!/usr/bin/env node
/**
* Demo script to test the Bargainer MCP Client and show outcomes
* This script simulates MCP tool calls and shows the results
*/
import { readFileSync } from 'fs';
import { join, dirname } from 'path';
import { fileURLToPath } from 'url';
const __filename = fileURLToPath(import.meta.url);
const __dirname = dirname(__filename);
console.log('🛍️ Bargainer MCP Client - Demo & Testing\n');
// Mock MCP tool responses (since we need API keys for real data)
const mockDeals = [
{
id: "deal_001",
title: "ASUS ROG Strix G15 Gaming Laptop - RTX 3060, Ryzen 7",
price: 899.99,
originalPrice: 1299.99,
discountPercentage: 31,
rating: 4.5,
reviewCount: 1247,
category: "electronics",
store: "Best Buy",
url: "https://bestbuy.com/deal/gaming-laptop",
source: "slickdeals",
verified: true,
popularity: 95
},
{
id: "deal_002",
title: "Sony WH-1000XM4 Wireless Noise Canceling Headphones",
price: 199.99,
originalPrice: 349.99,
discountPercentage: 43,
rating: 4.8,
reviewCount: 3421,
category: "electronics",
store: "Amazon",
url: "https://amazon.com/sony-headphones",
source: "rapidapi",
verified: true,
popularity: 88
},
{
id: "deal_003",
title: "Instant Pot Duo 7-in-1 Electric Pressure Cooker, 6 Qt",
price: 49.99,
originalPrice: 99.99,
discountPercentage: 50,
rating: 4.6,
reviewCount: 8934,
category: "home-garden",
store: "Target",
url: "https://target.com/instant-pot",
source: "dealnews",
verified: false,
popularity: 72
}
];
function simulateMCPToolCall(toolName, args) {
console.log(`🔧 Calling MCP Tool: ${toolName}`);
console.log(`📝 Arguments:`, JSON.stringify(args, null, 2));
console.log('⏳ Processing...\n');
switch (toolName) {
case 'search_deals':
return simulateSearchDeals(args);
case 'get_top_deals':
return simulateTopDeals(args);
case 'filter_deals':
return simulateFilterDeals(args);
case 'get_deal_details':
return simulateDealDetails(args);
case 'compare_deals':
return simulateCompareDeals(args);
case 'get_available_sources':
return simulateAvailableSources();
default:
return { error: `Unknown tool: ${toolName}` };
}
}
function simulateSearchDeals(args) {
const { query, category, maxPrice, minRating } = args;
let results = [...mockDeals];
// Apply filters
if (query) {
results = results.filter(deal =>
deal.title.toLowerCase().includes(query.toLowerCase())
);
}
if (category) {
results = results.filter(deal => deal.category === category);
}
if (maxPrice) {
results = results.filter(deal => deal.price <= maxPrice);
}
if (minRating) {
results = results.filter(deal => deal.rating >= minRating);
}
return {
success: true,
results: results.length,
deals: results.slice(0, args.limit || 20)
};
}
function simulateTopDeals(args) {
const sorted = [...mockDeals].sort((a, b) => b.popularity - a.popularity);
return {
success: true,
results: sorted.length,
deals: sorted.slice(0, args.limit || 10)
};
}
function simulateFilterDeals(args) {
const { deals, priceRange, ratingRange } = args;
let filtered = deals || mockDeals;
if (priceRange) {
if (priceRange.min) {
filtered = filtered.filter(deal => deal.price >= priceRange.min);
}
if (priceRange.max) {
filtered = filtered.filter(deal => deal.price <= priceRange.max);
}
}
if (ratingRange) {
if (ratingRange.min) {
filtered = filtered.filter(deal => deal.rating >= ratingRange.min);
}
}
return {
success: true,
original_count: (deals || mockDeals).length,
filtered_count: filtered.length,
deals: filtered
};
}
function simulateDealDetails(args) {
const deal = mockDeals.find(d => d.id === args.dealId);
return {
success: !!deal,
deal: deal || null
};
}
function simulateCompareDeals(args) {
const deals = args.deals || mockDeals;
const bestDeal = deals.reduce((best, current) => {
if (!best) return current;
if (current.discountPercentage > best.discountPercentage) return current;
if (current.discountPercentage === best.discountPercentage && current.rating > best.rating) return current;
return best;
}, null);
return {
success: true,
original_count: deals.length,
best_deal: bestDeal,
analysis: "Compared based on discount percentage and rating"
};
}
function simulateAvailableSources() {
return {
success: true,
sources: ["slickdeals", "rapidapi", "dealnews", "retailmenot"]
};
}
function formatDealOutput(deal) {
console.log(` 📦 ${deal.title}`);
console.log(` 💰 Price: $${deal.price} ${deal.originalPrice ? `(was $${deal.originalPrice})` : ''}`);
if (deal.discountPercentage) {
console.log(` 🏷️ Discount: ${deal.discountPercentage}% OFF`);
}
console.log(` ⭐ Rating: ${deal.rating}/5 (${deal.reviewCount} reviews)`);
console.log(` 🏪 Store: ${deal.store}`);
console.log(` 🔗 Source: ${deal.source}${deal.verified ? ' ✅' : ''}`);
console.log(` 🌐 URL: ${deal.url}`);
console.log('');
}
async function runDemo() {
try {
console.log('🎯 Demo 1: Search for Gaming Laptops under $1000\n');
const searchResult = simulateMCPToolCall('search_deals', {
query: 'gaming laptop',
category: 'electronics',
maxPrice: 1000,
minRating: 4.0,
limit: 10
});
console.log('📊 Results:');
console.log(` Found ${searchResult.results} deals\n`);
searchResult.deals.forEach(formatDealOutput);
console.log('\n' + '='.repeat(60) + '\n');
console.log('🎯 Demo 2: Get Top Trending Deals\n');
const topDeals = simulateMCPToolCall('get_top_deals', { limit: 3 });
console.log('📊 Top Deals:');
topDeals.deals.forEach((deal, index) => {
console.log(`\n🏆 #${index + 1} Most Popular Deal:`);
formatDealOutput(deal);
});
console.log('\n' + '='.repeat(60) + '\n');
console.log('🎯 Demo 3: Filter Deals by Price Range\n');
const filterResult = simulateMCPToolCall('filter_deals', {
deals: mockDeals,
priceRange: { min: 100, max: 500 },
ratingRange: { min: 4.5 }
});
console.log('📊 Filter Results:');
console.log(` Original: ${filterResult.original_count} deals`);
console.log(` After filtering: ${filterResult.filtered_count} deals\n`);
filterResult.deals.forEach(formatDealOutput);
console.log('\n' + '='.repeat(60) + '\n');
console.log('🎯 Demo 4: Compare Deals to Find Best Option\n');
const compareResult = simulateMCPToolCall('compare_deals', { deals: mockDeals });
console.log('📊 Best Deal Analysis:');
console.log(` ${compareResult.analysis}\n`);
console.log('🏆 Winner:');
formatDealOutput(compareResult.best_deal);
console.log('\n' + '='.repeat(60) + '\n');
console.log('🎯 Demo 5: Available Deal Sources\n');
const sourcesResult = simulateMCPToolCall('get_available_sources', {});
console.log('📊 Active Sources:');
sourcesResult.sources.forEach(source => {
console.log(` ✅ ${source}`);
});
console.log('\n' + '='.repeat(60) + '\n');
console.log('🎉 Demo completed! Here\'s how to use the real MCP client:');
console.log('');
console.log('1. 🔑 Set up API keys in .env file:');
console.log(' SLICKDEALS_API_KEY=your_key');
console.log(' RAPIDAPI_KEY=your_key');
console.log('');
console.log('2. 🔧 Configure Claude Desktop:');
console.log(' Add server config to claude_desktop_config.json');
console.log('');
console.log('3. 💬 Ask Claude questions like:');
console.log(' "Find gaming laptop deals under $1500"');
console.log(' "Show me top electronics deals"');
console.log(' "Compare iPhone prices across stores"');
console.log('');
console.log('4. 🚀 Or run programmatically:');
console.log(' npm run dev # Start MCP server');
console.log(' # Connect with MCP client and call tools');
} catch (error) {
console.error('❌ Demo failed:', error.message);
}
}
// Run the demo
runDemo();