multi town

cmd/run.go

@@ -5,8 +5,11 @@ import (
 	"encoding/json"
 	"flag"
 	"fmt"
+	"log"
 	"os"
 	"path"
+	"slices"
+	"strings"
 )
 
 func Run(ctx context.Context) error {
@@ -14,6 +17,8 @@ func Run(ctx context.Context) error {
 	searchRadius := fs.Float64("r", 5.0, "search radius in miles")
 	area := fs.Float64("a", 0.5, "result radius in miles")
 	doArea := fs.Bool("d", false, "do result radius in miles")
+	var towns FlagStringArray
+	fs.Var(&towns, "t", "list of towns to search around")
 	if err := fs.Parse(os.Args[1:]); err != nil {
 		panic(err)
 	}
@@ -21,16 +26,6 @@ func Run(ctx context.Context) error {
 	radiusX := 2 * radius / 2
 	radiusY := 2 * radius / 3
 
-	m, err := NewMapsOf(ctx, fs.Args()[0])
-	if err != nil {
-		return err
-	}
-
-	results, err := m.Search(ctx, fs.Args()[1], *searchRadius)
-	if err != nil {
-		return err
-	}
-
 	type geoJson struct {
 		Type       string `json:"type"`
 		Properties struct {
@@ -41,16 +36,28 @@ func Run(ctx context.Context) error {
 			Coordinates []any  `json:"coordinates"`
 		} `json:"geometry"`
 	}
-	geoJsons := make([]geoJson, len(results))
+	geoJsons := []geoJson{}
+	for _, town := range towns {
+		m, err := NewMapsOf(ctx, town)
+		if err != nil {
+			return err
+		}
+
+		results, err := m.Search(ctx, fs.Args()[0], *searchRadius)
+		if err != nil {
+			return err
+		}
+
 		for i := range results {
-		geoJsons[i].Type = "Feature"
-		geoJsons[i].Properties.Name = path.Join(fs.Args()[1], results[i].Name)
-		geoJsons[i].Geometry.Type = "Point"
-		geoJsons[i].Geometry.Coordinates = []any{results[i].Lng, results[i].Lat}
+			var a geoJson
+			a.Type = "Feature"
+			a.Properties.Name = path.Join(fs.Args()[0], results[i].Name)
+			a.Geometry.Type = "Point"
+			a.Geometry.Coordinates = []any{results[i].Lng, results[i].Lat}
 			if *doArea {
-			geoJsons[i].Geometry.Type = "Polygon"
+				a.Geometry.Type = "Polygon"
 				x, y := results[i].Lng, results[i].Lat
-			geoJsons[i].Geometry.Coordinates = []any{[]any{
+				a.Geometry.Coordinates = []any{[]any{
 					[2]float64{x, y + radiusY}, // top
 					[2]float64{x + radiusX, y}, // right
 					[2]float64{x, y - radiusY}, // bot
@@ -58,7 +65,17 @@ func Run(ctx context.Context) error {
 					[2]float64{x, y + radiusY}, // top
 				}}
 			}
+			geoJsons = append(geoJsons, a)
 		}
+	}
+	log.Println(len(geoJsons))
+	slices.SortFunc(geoJsons, func(a, b geoJson) int {
+		return strings.Compare(fmt.Sprint(a.Geometry.Coordinates), fmt.Sprint(b.Geometry.Coordinates))
+	})
+	geoJsons = slices.CompactFunc(geoJsons, func(a, b geoJson) bool {
+		return fmt.Sprint(a.Geometry.Coordinates) == fmt.Sprint(b.Geometry.Coordinates)
+	})
+	log.Println("COMPACTED", len(geoJsons))
 	b, _ := json.Marshal(map[string]any{
 		"features": geoJsons,
 		"type":     "FeatureCollection",
@@ -67,3 +84,14 @@ func Run(ctx context.Context) error {
 
 	return ctx.Err()
 }
+
+type FlagStringArray []string
+
+func (array *FlagStringArray) String() string {
+	return strings.Join(*array, ", ")
+}
+
+func (array *FlagStringArray) Set(s string) error {
+	*array = append(*array, s)
+	return nil
+}