1
Fork 0
photoview/api/graphql/resolvers/mediaGeoJson.go

135 lines
3.5 KiB
Go

package resolvers
import (
"context"
"os"
"path"
"github.com/photoview/photoview/api/graphql/auth"
"github.com/photoview/photoview/api/utils"
)
type geoMedia struct {
MediaID int
MediaTitle string
ThumbnailName string
ThumbnailWidth int
ThumbnailHeight int
Latitude float64
Longitude float64
}
type geoJSONFeatureCollection struct {
Type string `json:"type"`
Features []geoJSONFeature `json:"features"`
}
type geoJSONFeature struct {
Type string `json:"type"`
Properties interface{} `json:"properties"`
Geometry geoJSONFeatureGeometry `json:"geometry"`
}
type geoJSONMediaProperties struct {
MediaID int `json:"media_id"`
MediaTitle string `json:"media_title"`
Thumbnail struct {
URL string `json:"url"`
Width int `json:"width"`
Height int `json:"height"`
} `json:"thumbnail"`
}
type geoJSONFeatureGeometry struct {
Type string `json:"type"`
Coordinates [2]float64 `json:"coordinates"`
}
func makeGeoJSONFeatureCollection(features []geoJSONFeature) geoJSONFeatureCollection {
return geoJSONFeatureCollection{
Type: "FeatureCollection",
Features: features,
}
}
func makeGeoJSONFeature(properties interface{}, geometry geoJSONFeatureGeometry) geoJSONFeature {
return geoJSONFeature{
Type: "Feature",
Properties: properties,
Geometry: geometry,
}
}
func makeGeoJSONFeatureGeometryPoint(lat float64, long float64) geoJSONFeatureGeometry {
coordinates := [2]float64{long, lat}
return geoJSONFeatureGeometry{
Type: "Point",
Coordinates: coordinates,
}
}
func (r *queryResolver) MyMediaGeoJSON(ctx context.Context) (interface{}, error) {
user := auth.UserFromContext(ctx)
if user == nil {
return nil, auth.ErrUnauthorized
}
var media []*geoMedia
err := r.DB(ctx).Table("media").
Select(
"media.id AS media_id, media.title AS media_title, "+
"media_urls.media_name AS thumbnail_name, media_urls.width AS thumbnail_width, media_urls.height AS thumbnail_height, "+
"media_exif.gps_latitude AS latitude, media_exif.gps_longitude AS longitude").
Joins("INNER JOIN media_exif ON media.exif_id = media_exif.id").
Joins("INNER JOIN media_urls ON media.id = media_urls.media_id").
Joins("INNER JOIN user_albums ON media.album_id = user_albums.album_id").
Where("media_exif.gps_latitude IS NOT NULL").
Where("media_exif.gps_longitude IS NOT NULL").
Where("media_urls.purpose = 'thumbnail'").
Where("user_albums.user_id = ?", user.ID).
Scan(&media).Error
if err != nil {
return nil, err
}
features := make([]geoJSONFeature, 0)
for _, item := range media {
geoPoint := makeGeoJSONFeatureGeometryPoint(item.Latitude, item.Longitude)
thumbnailURL := utils.ApiEndpointUrl()
thumbnailURL.Path = path.Join(thumbnailURL.Path, "photo", item.ThumbnailName)
properties := geoJSONMediaProperties{
MediaID: item.MediaID,
MediaTitle: item.MediaTitle,
Thumbnail: struct {
URL string `json:"url"`
Width int `json:"width"`
Height int `json:"height"`
}{
URL: thumbnailURL.String(),
Width: item.ThumbnailWidth,
Height: item.ThumbnailHeight,
},
}
features = append(features, makeGeoJSONFeature(properties, geoPoint))
}
featureCollection := makeGeoJSONFeatureCollection(features)
return featureCollection, nil
}
func (r *queryResolver) MapboxToken(ctx context.Context) (*string, error) {
mapboxTokenEnv := os.Getenv("MAPBOX_TOKEN")
if mapboxTokenEnv == "" {
return nil, nil
}
return &mapboxTokenEnv, nil
}