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