58 lines
1.4 KiB
Go
58 lines
1.4 KiB
Go
package handler
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import (
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"fmt"
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"github.com/paulmach/orb"
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"github.com/paulmach/orb/geojson"
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"google.golang.org/genproto/googleapis/maps/routing/v2"
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)
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func (h *SilvermobiHandler) GeoAutocomplete(text string, lat, lon float64) (*geojson.FeatureCollection, error) {
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result, err := h.Services.Geocoder.Autocomplete(text)
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if err != nil {
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return nil, err
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}
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return result, nil
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}
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func (h *SilvermobiHandler) GeoRoute(locations geojson.FeatureCollection) (route *routing.Route, err error) {
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route_locations := []orb.Point{}
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features_type := ""
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for _, f := range locations.Features {
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ft := f.Geometry.GeoJSONType()
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if features_type != "" && ft != features_type {
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return nil, fmt.Errorf("mixing different types of geometries in the feature collection is not allowed : %s and %s found", features_type, ft)
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}
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features_type = ft
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if features_type == "Point" {
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if point, ok := f.Geometry.(orb.Point); ok {
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route_locations = append(route_locations, point)
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}
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} else {
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return nil, fmt.Errorf("feature type %s not supported", features_type)
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}
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return nil, err
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}
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return route, nil
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}
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func (h *SilvermobiHandler) GeoReturnRoute(locations geojson.FeatureCollection) (route *routing.Route, err error) {
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loc := locations
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route.Polyline.String()
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reverse(loc.Features)
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return h.GeoRoute(loc)
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}
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func reverse[S ~[]E, E any](s S) {
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for i, j := 0, len(s)-1; i < j; i, j = i+1, j-1 {
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s[i], s[j] = s[j], s[i]
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}
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}
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