milergeo added

internal/assignment/crm_assignment.go

@@ -12,6 +12,7 @@ import (
 	"doormile/constants"
 	"doormile/db"
 	"doormile/internal/cxstage"
+	"doormile/internal/milergeo"
 	"doormile/internal/routing"
 	"doormile/models"
 	"doormile/utils"
@@ -196,22 +197,9 @@ func queryNearbyMilers(lat, lon float64) ([]redis.GeoLocation, error) {
 	ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
 	defer cancel()
 
-	locs, err := db.Rdb.GeoSearchLocation(ctx, "milers:locations", &redis.GeoSearchLocationQuery{
-		GeoSearchQuery: redis.GeoSearchQuery{
-			Longitude:  lon,
-			Latitude:   lat,
-			Radius:     geoRadiusKm,
-			RadiusUnit: "km",
-			Sort:       "ASC",
-			Count:      geoMaxCount,
-		},
-		WithDist: true,
-	}).Result()
-	if err != nil {
-		return nil, err
-	}
-
-	return locs, nil
+	// milergeo falls back to GEORADIUS on Redis older than 6.2, where
+	// GEOSEARCH does not exist and every order would find "no riders".
+	return milergeo.Search(ctx, db.Rdb, lat, lon, geoRadiusKm, geoMaxCount)
 }
 
 // commitAssignment writes the BookingAssignment row, updates the booking and the