feat: add Detail Level BSR metric to experiments analysis

services/dataProcessor.ts

@@ -783,7 +783,8 @@ export const mergeSalesAndAdsData = (
     adsData: AdsRecord[],
     asinMetadataMap?: Map<string, { sku: string; title: string; line: string }>,
     trafficData?: TrafficRecord[],
-    velocityMap?: Map<string, number>
+    velocityMap?: Map<string, number>,
+    bsrData?: BSRRecord[]
 ): CombinedKPIs[] => {
     const stringCache: Record<string, string> = {};
     const getNorm = (s: string) => {
@@ -808,6 +809,20 @@ export const mergeSalesAndAdsData = (
         }
     }
 
+    // Build BSR lookup map
+    const bsrMap = new Map<string, number>();
+    if (bsrData) {
+        for (let i = 0; i < bsrData.length; i++) {
+            const b = bsrData[i];
+            const year = b.date ? parseInt(b.date.split('-')[0]) : new Date().getFullYear();
+            const country = mapCountryToMarketplace(b.market);
+            const key = `${getNorm(b.asin)}|${getNorm(country)}|${year}|${b.week}`;
+            if (b.detailLevelBSR !== null && b.detailLevelBSR !== undefined) {
+                bsrMap.set(key, b.detailLevelBSR);
+            }
+        }
+    }
+
     // 1. Initialize metadata lookup map with provided global map if available, otherwise build from current sales
     const asinMetadata = asinMetadataMap || new Map<string, { sku: string; title: string; line: string }>();
 
@@ -942,6 +957,7 @@ export const mergeSalesAndAdsData = (
             cpc,
             cvrUnits,
             glanceViews: trafficMap.get(key) || 0,
+            detailLevelBSR: bsrMap.get(key),
             avgWeeklySales
         });
     });
@@ -983,6 +999,7 @@ export const mergeSalesAndAdsData = (
                 cpc: ad.clicks > 0 ? ad.cost / ad.clicks : 0,
                 cvrUnits: ad.clicks > 0 ? (ad.attributedUnits30d / ad.clicks) * 100 : 0,
                 glanceViews: trafficMap.get(key) || 0,
+                detailLevelBSR: bsrMap.get(key),
                 avgWeeklySales
             });
         }