fix: logic to show BSR improvements (rank drops) in green

test-ads.ts

@@ -0,0 +1,57 @@
+import fs from 'fs';
+import { processCSV } from './services/dataProcessor';
+import { processAdsExcel, mergeSalesAndAdsData } from './services/dataProcessor';
+import { computeDiD } from './services/experimentAnalysis';
+
+async function runTest() {
+    console.log("Loading sales data...");
+    const csvStr = fs.readFileSync('public/Craze analytix 2026.csv', 'utf-8');
+    const sales = await processCSV(csvStr);
+
+    console.log("Loading ads data...");
+    const excelBuffer = fs.readFileSync('public/ads.xlsx').buffer;
+    const ads = await processAdsExcel(excelBuffer);
+
+    console.log("Sales rows:", sales.length);
+    console.log("Ads rows:", ads.length);
+
+    // Check INKEE DE explicitly
+    const inkeeSales = sales.filter(s => s.asin.includes('B0CQ'))
+    console.log("INKEE Sales rows:", inkeeSales.length);
+
+    const inkeeAds = ads.filter(a => a.asin.includes('B0CQ'))
+    console.log("INKEE Ad rows:", inkeeAds.length);
+
+    console.log("Merging...");
+    const merged = mergeSalesAndAdsData(sales, ads);
+
+    const mergedInkee = merged.filter(m => m.asin.includes('B0CQ') && m.year === 2024);
+
+    const totalCost = mergedInkee.reduce((sum, r) => sum + (r.cost || 0), 0);
+    const totalAdSales = mergedInkee.reduce((sum, r) => sum + (r.salesAds || 0), 0);
+
+    console.log("Merged INKEE total cost 2024:", totalCost);
+    console.log("Merged INKEE total ad sales 2024:", totalAdSales);
+
+    const experiment = {
+        id: "INKEE_DE",
+        name: "INKEE DE Test",
+        status: "active",
+        type: "advertising",
+        asins: ["B0CQXNBGBQ"], // Assuming this is INKEE DE
+        control_asins: [],
+        marketplace: "Amazon DE", // Matching the UI
+        start_date: "2024-03-01",
+        end_date: "2024-04-15",
+        baseline_start_date: "2024-01-01",
+        baseline_end_date: "2024-02-28",
+        primary_metric: "acos"
+    } as any;
+
+    console.log("Running DiD...");
+    const did = computeDiD(experiment, merged);
+    console.log("DiD Output:", JSON.stringify(did.metrics, null, 2));
+
+}
+
+runTest().catch(console.error);