fix: add floor lookup to beacon service

internal/pkg/service/beacon_service.go

@@ -101,7 +101,7 @@ func LocationToBeaconService(msg model.HTTPLocation, db *gorm.DB, writer *kafka.
 		return
 	}
 
-	err = db.Where("id = ?", msg.ID).Updates(model.Tracker{Position: gw.ID, X: gw.X, Y: gw.Y}).Error
+	err = db.Where("id = ?", msg.ID).Updates(model.Tracker{Position: gw.ID, X: gw.X, Y: gw.Y, Floor: floor.ID}).Error
 	if err != nil {
 		msg := fmt.Sprintf("Error in updating tracker: %v", err)
 		slog.Error(msg)
@@ -139,10 +139,29 @@ func LocationToBeaconServiceAI(msg model.HTTPLocation, db *gorm.DB, writer *kafk
 		return
 	}
 
-	err = db.Where("id = ?", tracker.ID).Updates(model.Tracker{Position: gw.ID, X: msg.X, Y: msg.Y}).Error
+	var floor model.Floor
+	floorFound := msg.Z >= 0
+	if floorFound {
+		if err := db.Where("floor_number = ?", int(msg.Z)).First(&floor).Error; err != nil {
+			if errors.Is(err, gorm.ErrRecordNotFound) {
+				slog.Warn(fmt.Sprintf("Floor not found for floor number: %f, skipping floor update", msg.Z))
+				floorFound = false
+			} else {
+				slog.Error(fmt.Sprintf("Error querying floor for floor number: %f: %v", msg.Z, err))
+				return
+			}
+		}
+	}
+
+	var trackerUpdate model.Tracker
+	if floorFound {
+		trackerUpdate = model.Tracker{Position: gw.ID, X: msg.X, Y: msg.Y, Floor: floor.ID}
+	} else {
+		trackerUpdate = model.Tracker{Position: gw.ID, X: msg.X, Y: msg.Y}
+	}
+	err = db.Where("id = ?", tracker.ID).Updates(trackerUpdate).Error
 	if err != nil {
-		msg := fmt.Sprintf("Error in updating tracker: %v", err)
-		slog.Error(msg)
+		slog.Error(fmt.Sprintf("Error in updating tracker: %v", err))
 		return
 	}