add support for subsonic podcast api

server/db/db.go

@@ -79,6 +79,7 @@ func New(path string) (*DB, error) {
 		migrateAddAlbumIDX(),
 		migrateMultiGenre(),
 		migrateListenBrainz(),
+		migratePodcast(),
 	))
 	if err = migr.Migrate(); err != nil {
 		return nil, fmt.Errorf("migrating to latest version: %w", err)

server/db/migrations.go

@@ -211,6 +211,7 @@ func migrateMultiGenre() gormigrate.Migration {
 	}
 }
 
+
 func migrateListenBrainz() gormigrate.Migration {
 	return gormigrate.Migration{
 		ID: "202101081149",
@@ -225,3 +226,16 @@ func migrateListenBrainz() gormigrate.Migration {
 		},
 	}
 }
+
+func migratePodcast() gormigrate.Migration {
+	return gormigrate.Migration{
+		ID: "202101111537",
+		Migrate: func(tx *gorm.DB) error {
+			step := tx.AutoMigrate(
+				Podcast{},
+				PodcastEpisode{},
+			)
+			return step.Error
+		},
+	}
+}

server/db/model.go

@@ -7,6 +7,7 @@ package db
 
 import (
 	"path"
+	"path/filepath"
 	"strconv"
 	"strings"
 	"time"
@@ -67,6 +68,15 @@ type Genre struct {
 	TrackCount int    `sql:"-"`
 }
 
+// AudioFile is used to avoid some duplication in handlers_raw.go
+// between Track and Podcast
+type AudioFile interface {
+	AudioFilename() string
+	Ext() string
+	MIME() string
+	AudioBitrate() int
+}
+
 type Track struct {
 	ID             int `gorm:"primary_key"`
 	CreatedAt      time.Time
@@ -109,6 +119,14 @@ func (t *Track) Ext() string {
 	return longExt[1:]
 }
 
+func (t *Track) AudioFilename() string {
+	return t.Filename
+}
+
+func (t *Track) AudioBitrate() int {
+	return t.Bitrate
+}
+
 func (t *Track) MIME() string {
 	v, _ := mime.FromExtension(t.Ext())
 	return v
@@ -270,3 +288,68 @@ type AlbumGenre struct {
 	Genre   *Genre
 	GenreID int `gorm:"not null; unique_index:idx_album_id_genre_id" sql:"default: null; type:int REFERENCES genres(id) ON DELETE CASCADE"`
 }
+
+type Podcast struct {
+	ID          int `gorm:"primary_key"`
+	UpdatedAt   time.Time
+	ModifiedAt  time.Time
+	UserID      int `sql:"default: null; type:int REFERENCES users(id) ON DELETE CASCADE"`
+	URL         string
+	Title       string
+	Description string
+	ImageURL    string
+	ImagePath   string
+	Error       string
+}
+
+func (p *Podcast) Fullpath(podcastPath string) string {
+	return filepath.Join(podcastPath, filepath.Clean(p.Title))
+}
+
+func (p *Podcast) SID() *specid.ID {
+	return &specid.ID{Type: specid.Podcast, Value: p.ID}
+}
+
+type PodcastEpisode struct {
+	ID          int `gorm:"primary_key"`
+	CreatedAt   time.Time
+	UpdatedAt   time.Time
+	ModifiedAt  time.Time
+	PodcastID   int `gorm:"not null" sql:"default: null; type:int REFERENCES podcasts(id) ON DELETE CASCADE"`
+	Title       string
+	Description string
+	PublishDate *time.Time
+	AudioURL    string
+	Bitrate     int
+	Length      int
+	Size        int
+	Path        string
+	Filename    string
+	Status      string
+	Error       string
+}
+
+func (pe *PodcastEpisode) SID() *specid.ID {
+	return &specid.ID{Type: specid.PodcastEpisode, Value: pe.ID}
+}
+
+func (pe *PodcastEpisode) AudioFilename() string {
+	return pe.Filename
+}
+
+func (pe *PodcastEpisode) Ext() string {
+	longExt := path.Ext(pe.Filename)
+	if len(longExt) < 1 {
+		return ""
+	}
+	return longExt[1:]
+}
+
+func (pe *PodcastEpisode) MIME() string {
+	v, _ := mime.FromExtension(pe.Ext())
+	return v
+}
+
+func (pe *PodcastEpisode) AudioBitrate() int {
+	return pe.Bitrate
+}