filter to 30mi radius

cmd/maps.go

@@ -5,6 +5,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"log"
+	"math"
 	"os"
 	"path"
 
@@ -48,6 +49,24 @@ func (m *Maps) textSearchOne(ctx context.Context, query string) (Location, error
 }
 
 func (m *Maps) Search(ctx context.Context, query string) ([]Location, error) {
+	results, err := m.search(ctx, query)
+	for i := len(results) - 1; i >= 0; i-- {
+		shouldKeep := true
+		if m.around != (Location{}) {
+			convertToMiles := 69.0
+			a := m.around.Lat - results[i].Lat
+			b := m.around.Lng - results[i].Lng
+			dist := math.Sqrt(a*a + b*b)
+			shouldKeep = dist*convertToMiles < 30.0
+		}
+		if !shouldKeep {
+			results = append(results[:i], results[i+1:]...)
+		}
+	}
+	return results, err
+}
+
+func (m *Maps) search(ctx context.Context, query string) ([]Location, error) {
 	cacheK := path.Join(fmt.Sprint(m.around), query)
 	if b, err := m.cache.Get(ctx, cacheK); err == nil {
 		var locations []Location