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@ -3,6 +3,7 @@ package main |
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import ( |
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"fmt" |
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"io/ioutil" |
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"log" |
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"os" |
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"path/filepath" |
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"regexp" |
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@ -20,6 +21,21 @@ type MediaStore struct { |
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StoreLocation string |
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} |
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type Album struct { |
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ID string `yaml:"-"` // Not part of the YAML struct
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Title string `yaml:"title"` |
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Date time.Time `yaml:"date"` |
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Media []Media `yaml:"-"` // Not part of the YAML struct
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} |
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type Media struct { |
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Type string `yaml:"type"` |
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ID string `yaml:"id"` |
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Files []string `yaml:"-"` // Not part of the YAML struct
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Caption string `yaml:"caption"` |
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Date time.Time `yaml:"date"` |
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} |
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func InitMediaStore(storeLocation string) (*MediaStore, error) { |
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err := os.MkdirAll(filepath.Join(storeLocation, ".current"), os.ModePerm) |
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if err != nil { |
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@ -46,11 +62,11 @@ func (store *MediaStore) CommitVideo(id string, timestamp time.Time, caption str |
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} |
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func (store *MediaStore) commitMedia(id string, timestamp time.Time, caption string, mediaType string) error { |
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entry := [1]map[string]string{{ |
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"type": mediaType, |
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"date": timestamp.Format("2006-01-02T15:04:05-0700"), |
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"caption": caption, |
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"id": id, |
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entry := [1]Media{{ |
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Type: mediaType, |
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Date: timestamp, |
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Caption: caption, |
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ID: id, |
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}} |
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yamlData, err := yaml.Marshal(entry) |
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@ -73,24 +89,117 @@ func appendToFile(filename string, data []byte) error { |
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return nil |
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} |
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func (store *MediaStore) GetCurrentAlbum() (string, error) { |
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yamlData, err := ioutil.ReadFile(filepath.Join(store.StoreLocation, ".current", "meta.yaml")) |
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func (store *MediaStore) ListAlbums() ([]Album, error) { |
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files, err := ioutil.ReadDir(store.StoreLocation) |
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if err != nil { |
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if os.IsNotExist(err) { |
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// the album has not yet a name, it is not an error
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return "", nil |
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} else { |
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return "", err |
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return nil, err |
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} |
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albums := make([]Album, len(files)) |
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for i, file := range files { |
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album, err := store.GetAlbum(file.Name(), true) |
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if err != nil { |
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log.Printf("ListAlbum: Cannot extract album info for '%s'", file.Name()) |
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continue |
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} |
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albums[i] = *album |
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} |
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var metadata map[string]string = make(map[string]string) |
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err = yaml.UnmarshalStrict(yamlData, &metadata) |
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return albums, nil |
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} |
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func (store *MediaStore) OpenFile(albumName string, filename string) (*os.File, error) { |
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if albumName == "" { |
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albumName = ".current" |
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} |
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return os.OpenFile(filepath.Join(store.StoreLocation, albumName, filename), os.O_RDONLY, 0600) |
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} |
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func (store *MediaStore) GetAlbum(name string, metadataOnly bool) (*Album, error) { |
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var album Album |
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var filename string |
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if name == "" || name == ".current" { |
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filename = ".current" |
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} else { |
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filename = filepath.Base(name) |
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album.ID = filename |
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} |
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if !fileExists(filepath.Join(store.StoreLocation, filename)) { |
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return nil, fmt.Errorf("Unknown album '%s'", name) |
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} |
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err := store.fillAlbumMetadata(filename, &album) |
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if err != nil { |
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return nil, err |
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} |
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if metadataOnly { |
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return &album, nil |
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} |
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err = store.fillAlbumContent(filename, &album) |
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if err != nil { |
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return nil, err |
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} |
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return &album, nil |
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} |
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func (store *MediaStore) fillAlbumContent(filename string, album *Album) error { |
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yamlData, err := ioutil.ReadFile(filepath.Join(store.StoreLocation, filename, "chat.yaml")) |
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// if chat.yaml is not there, it may be because there is no media yet
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// It is not an error.
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if err != nil && !os.IsNotExist(err) { |
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return nil |
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} |
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err = yaml.UnmarshalStrict(yamlData, &album.Media) |
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if err != nil { |
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return err |
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} |
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// Find media files matching each id
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for i := range album.Media { |
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paths, _ := filepath.Glob(filepath.Join(store.StoreLocation, filename, album.Media[i].ID+".*")) |
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album.Media[i].Files = make([]string, len(paths)) |
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for j, path := range paths { |
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album.Media[i].Files[j] = filepath.Base(path) |
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} |
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} |
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return nil |
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} |
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func (store *MediaStore) fillAlbumMetadata(filename string, album *Album) error { |
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yamlData, err := ioutil.ReadFile(filepath.Join(store.StoreLocation, filename, "meta.yaml")) |
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// if meta.yaml is not there, it could be because the album has not yet
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// been initialized. It is not an error.
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if err != nil && !os.IsNotExist(err) { |
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return err |
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} |
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return yaml.UnmarshalStrict(yamlData, album) |
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} |
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func (store *MediaStore) GetMedia(albumName string, mediaId string) (*Media, error) { |
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album, err := store.GetAlbum(albumName, false) |
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if err != nil { |
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return "", err |
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return nil, err |
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} |
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return metadata["title"], nil |
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for _, media := range album.Media { |
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if media.ID == mediaId { |
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return &media, nil |
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} |
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} |
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return nil, nil |
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} |
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func (store *MediaStore) GetCurrentAlbum() (*Album, error) { |
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return store.GetAlbum("", true) |
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} |
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func (store *MediaStore) CloseAlbum() error { |
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@ -99,19 +208,19 @@ func (store *MediaStore) CloseAlbum() error { |
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return err |
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} |
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var metadata map[string]string = make(map[string]string) |
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var metadata Album |
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err = yaml.UnmarshalStrict(yamlData, &metadata) |
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if err != nil { |
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return err |
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} |
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date, err := time.Parse("2006-01-02T15:04:05-0700", metadata["date"]) |
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folderName := metadata.Date.Format("2006-01-02") + "-" + sanitizeAlbumName(metadata.Title) |
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err = os.Rename(filepath.Join(store.StoreLocation, ".current"), filepath.Join(store.StoreLocation, folderName)) |
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if err != nil { |
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return err |
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} |
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folderName := date.Format("2006-01-02") + "-" + sanitizeAlbumName(metadata["title"]) |
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err = os.Rename(filepath.Join(store.StoreLocation, ".current"), filepath.Join(store.StoreLocation, folderName)) |
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err = os.MkdirAll(filepath.Join(store.StoreLocation, ".current"), os.ModePerm) |
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if err != nil { |
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return err |
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} |
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@ -125,8 +234,8 @@ func fileExists(filename string) bool { |
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} |
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func (store *MediaStore) NewAlbum(title string) error { |
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if fileExists(filepath.Join(store.StoreLocation, ".current/")) { |
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if fileExists(filepath.Join(store.StoreLocation, "/.current/meta.yaml")) { |
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if fileExists(filepath.Join(store.StoreLocation, ".current")) { |
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if fileExists(filepath.Join(store.StoreLocation, ".current", "meta.yaml")) { |
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err := store.CloseAlbum() |
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if err != nil { |
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return err |
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@ -134,14 +243,14 @@ func (store *MediaStore) NewAlbum(title string) error { |
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} |
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} |
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err := os.MkdirAll(filepath.Join(store.StoreLocation, ".current/"), os.ModePerm) |
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err := os.MkdirAll(filepath.Join(store.StoreLocation, ".current"), os.ModePerm) |
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if err != nil { |
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return err |
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} |
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metadata := map[string]string{ |
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"title": title, |
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"date": time.Now().Format("2006-01-02T15:04:05-0700"), |
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metadata := Album{ |
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Title: title, |
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Date: time.Now(), |
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} |
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yamlData, err := yaml.Marshal(metadata) |
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