70 lines
1.7 KiB
Go
70 lines
1.7 KiB
Go
package cmd
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import (
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"context"
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"encoding/json"
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"flag"
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"fmt"
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"os"
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"path"
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)
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func Run(ctx context.Context) error {
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fs := flag.NewFlagSet(os.Args[0], flag.ContinueOnError)
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searchRadius := fs.Float64("r", 5.0, "search radius in miles")
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area := fs.Float64("a", 0.5, "result radius in miles")
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doArea := fs.Bool("d", false, "do result radius in miles")
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if err := fs.Parse(os.Args[1:]); err != nil {
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panic(err)
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}
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radius := *area / convertToMiles
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radiusX := radius / 2
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radiusY := radius / 3
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m, err := NewMapsOf(ctx, fs.Args()[0])
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if err != nil {
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return err
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}
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results, err := m.Search(ctx, fs.Args()[1], *searchRadius)
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if err != nil {
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return err
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}
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type geoJson struct {
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Type string `json:"type"`
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Properties struct {
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Name string `json:"name"`
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} `json:"properties"`
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Geometry struct {
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Type string `json:"type"`
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Coordinates []any `json:"coordinates"`
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} `json:"geometry"`
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}
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geoJsons := make([]geoJson, len(results))
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for i := range results {
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geoJsons[i].Type = "Feature"
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geoJsons[i].Properties.Name = path.Join(fs.Args()[1], results[i].Name)
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geoJsons[i].Geometry.Type = "Point"
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geoJsons[i].Geometry.Coordinates = []any{results[i].Lng, results[i].Lat}
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if *doArea {
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geoJsons[i].Geometry.Type = "Polygon"
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x, y := results[i].Lng, results[i].Lat
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geoJsons[i].Geometry.Coordinates = []any{[]any{
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[2]float64{x - radiusX, y + radiusY}, // top left
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[2]float64{x + radiusX, y + radiusY}, // top righ
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[2]float64{x + radiusX, y - radiusY}, // bot righ
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[2]float64{x - radiusX, y - radiusY}, // bot left
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[2]float64{x - radiusX, y + radiusY}, // top left
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}}
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}
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}
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b, _ := json.Marshal(map[string]any{
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"features": geoJsons,
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"type": "FeatureCollection",
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})
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fmt.Printf("%s\n", b)
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return ctx.Err()
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}
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