refactor: consolidate specid <-> filesystem mapping and always use abs paths (#309)

db/model.go

@@ -398,6 +398,7 @@ type PodcastEpisode struct {
 	Filename    string
 	Status      PodcastEpisodeStatus
 	Error       string
+	AbsP        string `gorm:"-"` // TODO: not this. instead we need some consistent way to get the AbsPath for both tracks and podcast episodes. or just files in general
 }
 
 func (pe *PodcastEpisode) AudioLength() int  { return pe.Length }
@@ -423,6 +424,10 @@ func (pe *PodcastEpisode) MIME() string {
 	return mime.TypeByExtension(filepath.Ext(pe.Filename))
 }
 
+func (pe *PodcastEpisode) AbsPath() string {
+	return pe.AbsP
+}
+
 type Bookmark struct {
 	ID          int `gorm:"primary_key"`
 	User        *User