78 lines
2.0 KiB
Go
78 lines
2.0 KiB
Go
package specidpaths
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import (
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"errors"
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"path/filepath"
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"strings"
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"go.senan.xyz/gonic/db"
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"go.senan.xyz/gonic/server/ctrlsubsonic/specid"
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)
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var ErrNotAbs = errors.New("not abs")
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var ErrNotFound = errors.New("not found")
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type Result interface {
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SID() *specid.ID
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AbsPath() string
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}
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// Locate maps a specid to its location on the filesystem
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func Locate(dbc *db.DB, id specid.ID) (Result, error) {
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switch id.Type {
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case specid.Track:
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var track db.Track
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return &track, dbc.Preload("Album").Where("id=?", id.Value).Find(&track).Error
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case specid.PodcastEpisode:
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var pe db.PodcastEpisode
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return &pe, dbc.Preload("Podcast").Where("id=? AND status=?", id.Value, db.PodcastEpisodeStatusCompleted).Find(&pe).Error
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default:
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return nil, ErrNotFound
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}
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}
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// Locate maps a location on the filesystem to a specid
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func Lookup(dbc *db.DB, musicPaths []string, podcastsPath string, path string) (Result, error) {
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if !filepath.IsAbs(path) {
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return nil, ErrNotAbs
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}
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if strings.HasPrefix(path, podcastsPath) {
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podcastPath, episodeFilename := filepath.Split(path)
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q := dbc.
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Joins(`JOIN podcasts ON podcasts.id=podcast_episodes.podcast_id`).
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Where(`podcasts.root_dir=? AND podcast_episodes.filename=?`, filepath.Clean(podcastPath), filepath.Clean(episodeFilename))
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var pe db.PodcastEpisode
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if err := q.First(&pe).Error; err == nil {
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return &pe, nil
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}
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return nil, ErrNotFound
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}
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var musicPath string
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for _, mp := range musicPaths {
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if strings.HasPrefix(path, mp) {
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musicPath = mp
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}
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}
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if musicPath == "" {
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return nil, ErrNotFound
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}
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relPath, _ := filepath.Rel(musicPath, path)
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relDir, filename := filepath.Split(relPath)
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leftPath, rightPath := filepath.Split(filepath.Clean(relDir))
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q := dbc.
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Where(`albums.root_dir=? AND albums.left_path=? AND albums.right_path=? AND tracks.filename=?`, musicPath, leftPath, rightPath, filename).
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Joins(`JOIN albums ON tracks.album_id=albums.id`).
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Preload("Album")
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var track db.Track
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if err := q.First(&track).Error; err == nil {
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return &track, nil
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}
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return nil, ErrNotFound
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}
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