photoprism/internal/hub/places/location.go

164 lines
3.4 KiB
Go

package places
import (
"crypto/sha1"
"encoding/json"
"fmt"
"net/http"
"strings"
"time"
"github.com/photoprism/photoprism/pkg/s2"
"github.com/photoprism/photoprism/pkg/txt"
)
// Location
type Location struct {
ID string `json:"id"`
LocLat float64 `json:"lat"`
LocLng float64 `json:"lng"`
LocName string `json:"name"`
LocCategory string `json:"category"`
Place Place `json:"place"`
Cached bool `json:"-"`
}
const ApiName = "places"
var Key = "f60f5b25d59c397989e3cd374f81cdd7710a4fca"
var Secret = "photoprism"
var UserAgent = "PhotoPrism/0.0.0"
var ReverseLookupURL = "https://places.photoprism.app/v1/location/%s"
var client = &http.Client{Timeout: 60 * time.Second}
func NewLocation(id string, lat, lng float64, name, category string, place Place, cached bool) *Location {
result := &Location{
ID: id,
LocLat: lat,
LocLng: lng,
LocName: name,
LocCategory: category,
Place: place,
Cached: cached,
}
return result
}
func FindLocation(id string) (result Location, err error) {
if len(id) > 16 || len(id) == 0 {
return result, fmt.Errorf("invalid cell %s (%s)", id, ApiName)
}
start := time.Now()
lat, lng := s2.LatLng(id)
if lat == 0.0 || lng == 0.0 {
return result, fmt.Errorf("skipping lat %f, lng %f (%s)", lat, lng, ApiName)
}
if hit, ok := cache.Get(id); ok {
log.Debugf("places: cache hit for lat %f, lng %f", lat, lng)
cached := hit.(Location)
cached.Cached = true
return cached, nil
}
url := fmt.Sprintf(ReverseLookupURL, id)
log.Debugf("places: sending request to %s", url)
req, err := http.NewRequest(http.MethodGet, url, nil)
if err != nil {
log.Errorf("places: %s", err.Error())
return result, err
}
req.Header.Set("User-Agent", UserAgent)
if Key != "" {
req.Header.Set("X-Key", Key)
req.Header.Set("X-Signature", fmt.Sprintf("%x", sha1.Sum([]byte(Key+url+Secret))))
}
var r *http.Response
for i := 0; i < 3; i++ {
r, err = client.Do(req)
if err == nil {
break
}
}
if err != nil {
log.Errorf("places: %s (http request)", err.Error())
return result, err
} else if r.StatusCode >= 400 {
err = fmt.Errorf("request failed with code %d (%s)", r.StatusCode, ApiName)
return result, err
}
err = json.NewDecoder(r.Body).Decode(&result)
if err != nil {
log.Errorf("places: %s (decode json)", err.Error())
return result, err
}
if result.ID == "" {
return result, fmt.Errorf("no result for %s (%s)", id, ApiName)
}
cache.SetDefault(id, result)
log.Debugf("places: cached cell %s [%s]", id, time.Since(start))
result.Cached = false
return result, nil
}
func (l Location) CellID() (result string) {
return l.ID
}
func (l Location) Name() (result string) {
return strings.SplitN(l.LocName, "/", 2)[0]
}
func (l Location) Category() (result string) {
return l.LocCategory
}
func (l Location) Label() (result string) {
return l.Place.LocLabel
}
func (l Location) State() (result string) {
return l.Place.LocState
}
func (l Location) City() (result string) {
return l.Place.LocCity
}
func (l Location) CountryCode() (result string) {
return l.Place.LocCountry
}
func (l Location) Latitude() (result float64) {
return l.LocLat
}
func (l Location) Longitude() (result float64) {
return l.LocLng
}
func (l Location) Keywords() (result []string) {
return txt.UniqueWords(txt.Words(l.Place.LocKeywords))
}
func (l Location) Source() string {
return "places"
}