dedupe points across searches but not across towns

cmd/run.go

@@ -37,43 +37,52 @@ func Run(ctx context.Context) error {
 	type Area [1][5][2]float64
 	type Point [2]float64
 	geoJsons := []geoJson{}
-	for _, town := range towns {
-		for search, area := range searches {
-			radius := area / convertToMiles
-			radiusX := 2 * radius / 2
-			radiusY := 2 * radius / 3
+	for search, area := range searches {
+		results := []Location{}
+		for _, town := range towns {
 			m, err := NewMapsOf(ctx, town)
 			if err != nil {
 				return err
 			}
 
-			results, err := m.Search(ctx, search, *searchRadius)
+			more, err := m.Search(ctx, search, *searchRadius)
 			if err != nil {
 				return err
 			}
+			results = append(results, more...)
+		}
 
-			for i := range results {
-				var a geoJson
-				a.Type = "Feature"
-				a.Properties.Name = path.Join(search, results[i].Name)
-				if strings.Contains(search, "school") {
-					a.Properties.Name = " "
-				}
-				a.Geometry.Type = "Point"
-				a.Geometry.Coordinates = Point{results[i].Lng, results[i].Lat}
-				if *doArea {
-					a.Geometry.Type = "Polygon"
-					x, y := results[i].Lng, results[i].Lat
-					a.Geometry.Coordinates = Area{{
-						[2]float64{x, y + radiusY}, // top
-						[2]float64{x + radiusX, y}, // right
-						[2]float64{x, y - radiusY}, // bot
-						[2]float64{x - radiusX, y}, // left
-						[2]float64{x, y + radiusY}, // top
-					}}
-				}
-				geoJsons = append(geoJsons, a)
+		slices.SortFunc(results, func(a, b Location) int {
+			return strings.Compare(a.Name, b.Name)
+		})
+		slices.CompactFunc(results, func(a, b Location) bool {
+			return a.Name == b.Name
+		})
+		radius := area / convertToMiles
+		radiusX := 2 * radius / 2
+		radiusY := 2 * radius / 3
+
+		for i := range results {
+			var a geoJson
+			a.Type = "Feature"
+			a.Properties.Name = path.Join(search, results[i].Name)
+			if strings.Contains(search, "school") {
+				a.Properties.Name = " "
 			}
+			a.Geometry.Type = "Point"
+			a.Geometry.Coordinates = Point{results[i].Lng, results[i].Lat}
+			if *doArea {
+				a.Geometry.Type = "Polygon"
+				x, y := results[i].Lng, results[i].Lat
+				a.Geometry.Coordinates = Area{{
+					[2]float64{x, y + radiusY}, // top
+					[2]float64{x + radiusX, y}, // right
+					[2]float64{x, y - radiusY}, // bot
+					[2]float64{x - radiusX, y}, // left
+					[2]float64{x, y + radiusY}, // top
+				}}
+			}
+			geoJsons = append(geoJsons, a)
 		}
 	}
 	log.Println(len(geoJsons))