package api import ( "fmt" "strconv" "github.com/photoprism/photoprism/internal/service" "github.com/photoprism/photoprism/internal/thumb" ) // MaxAge represents a cache TTL in seconds. type MaxAge int // String returns the cache TTL in seconds as string. func (a MaxAge) String() string { return strconv.Itoa(int(a)) } // Default cache TTL times in seconds. var ( CoverCacheTTL MaxAge = 3600 // 1 hour ThumbCacheTTL MaxAge = 3600 * 24 * 90 // ~ 3 months ) type ThumbCache struct { FileName string ShareName string } type ByteCache struct { Data []byte } // CacheKey returns a cache key string based on namespace, uid and name. func CacheKey(ns, uid, name string) string { return fmt.Sprintf("%s:%s:%s", ns, uid, name) } // RemoveFromFolderCache removes an item from the folder cache e.g. after indexing. func RemoveFromFolderCache(rootName string) { cache := service.FolderCache() cacheKey := fmt.Sprintf("folder:%s:%t:%t", rootName, true, false) cache.Delete(cacheKey) log.Debugf("removed %s from cache", cacheKey) } // RemoveFromAlbumCoverCache removes covers by album UID e.g. after adding or removing photos. func RemoveFromAlbumCoverCache(uid string) { cache := service.CoverCache() for typeName := range thumb.Types { cacheKey := CacheKey(albumCover, uid, typeName) cache.Delete(cacheKey) log.Debugf("removed %s from cache", cacheKey) } } // FlushCoverCache clears the complete cover cache. func FlushCoverCache() { service.CoverCache().Flush() log.Debugf("albums: flushed cover cache") }