Files
gonic/server/ctrladmin/playlist.go
2020-01-22 14:46:01 +00:00

72 lines
2.0 KiB
Go

package ctrladmin
import (
"bufio"
"fmt"
"mime/multipart"
"strings"
"github.com/jinzhu/gorm"
"github.com/pkg/errors"
"senan.xyz/g/gonic/model"
)
func playlistParseLine(c *Controller, playlistID int, path string) error {
if strings.HasPrefix(path, "#") || strings.TrimSpace(path) == "" {
return nil
}
track := &model.Track{}
query := c.DB.Raw(`
SELECT tracks.id FROM TRACKS
JOIN albums ON tracks.album_id = albums.id
WHERE (? || '/' || albums.left_path || albums.right_path || '/' || tracks.filename) = ?
`, c.MusicPath, path)
err := query.First(&track).Error
switch {
case gorm.IsRecordNotFoundError(err):
return fmt.Errorf("couldn't match track %q", path)
case err != nil:
return errors.Wrap(err, "while matching")
}
c.DB.Create(&model.PlaylistItem{
PlaylistID: playlistID,
TrackID: track.ID,
})
return nil
}
func playlistParseUpload(c *Controller, userID int, header *multipart.FileHeader) ([]string, bool) {
file, err := header.Open()
if err != nil {
return []string{fmt.Sprintf("couldn't open file %q", header.Filename)}, false
}
playlistName := strings.TrimSuffix(header.Filename, ".m3u8")
if playlistName == "" {
return []string{fmt.Sprintf("invalid filename %q", header.Filename)}, false
}
contentType := header.Header.Get("Content-Type")
if !(contentType == "audio/x-mpegurl" || contentType == "application/octet-stream") {
return []string{fmt.Sprintf("invalid content-type %q", contentType)}, false
}
playlist := &model.Playlist{}
c.DB.FirstOrCreate(playlist, model.Playlist{
Name: playlistName,
UserID: userID,
})
c.DB.Delete(&model.PlaylistItem{}, "playlist_id = ?", playlist.ID)
var errors []string
scanner := bufio.NewScanner(file)
for scanner.Scan() {
path := scanner.Text()
if err := playlistParseLine(c, playlist.ID, path); err != nil {
// trim length of error to not overflow cookie flash
errors = append(errors, fmt.Sprintf("%.100s", err.Error()))
}
}
if err := scanner.Err(); err != nil {
return []string{fmt.Sprintf("scanning line of playlist: %v", err)}, true
}
return errors, true
}