func newAlbum(c *cli.Context, title string) *media.Album {
a := media.NewAlbum()
a.Title = title
if c.IsSet("public") {
a.Access = media.AccessPublic
}
return a
}
func (cacher *ImageCacher) selectAlbum() (*media.Album, error) {
var albums []media.Album
const mkeyAlbumList = "ImageCacher.AlbumList"
const mexpiration = 24 * time.Hour
err := cacher.memc.CachedObjectWithExpiration(mkeyAlbumList, mexpiration, albums, func() (interface{}, error) {
cacher.logger.Debugf("Listing all albums...")
list, err := cacher.client.ListAlbums("")
if err != nil {
return nil, err
}
for _, a := range list {
albums = append(albums, *a)
}
return albums, nil
}, false)
if err != nil {
return nil, err
}
cacher.logger.Debugf("%d albums found on the account.", len(albums))
albumName := cacher.getAlbumName()
for _, a := range albums {
if a.Title == albumName && a.NumPhotos <= maxPhotosInAlbum && a.Access == media.AccessPublic {
cacher.logger.Debugf("Choose %s for the photo album.", a.ID)
return &a, nil
}
}
// no album available, create a new one.
album := media.NewAlbum()
album.Title = albumName
album.Summary = "Auto generated by ImageCacher (DO NOT DELETE)"
album.Access = media.AccessPublic
created, err := cacher.client.CreateAlbum("", album)
if err != nil {
return nil, fmt.Errorf("Failed to create an album %s: %v", albumName, err)
}
cacher.logger.Debugf("new album %s is created (albumID: %s).", albumName, created.ID)
// invalidate cache
cacher.memc.Delete(mkeyAlbumList)
return created, nil
}