OpenSubsonic: playbackReport extension (reportPlayback), integrated with now-playing/history

internal/database/subsonic_helpers2.go

@@ -275,3 +275,13 @@ func TotalFilesSeenAcrossScans(db *sql.DB) (int64, error) {
 	err := db.QueryRow(`SELECT COALESCE(SUM(files_seen), 0) FROM scan_state WHERE status = 'scanning'`).Scan(&n)
 	return n, err
 }
+
+// RecordPlaybackReport stores one raw playback-timeline event (the
+// OpenSubsonic reportPlayback extension), independent from the classic
+// scrobbles/playback_history tables so a client's frequent timeline
+// pings don't get conflated with actual "this was listened to" history.
+func RecordPlaybackReport(db *sql.DB, userID, songID string, positionMs int, state, client string, playbackRate float64) error {
+	_, err := db.Exec(`INSERT INTO playback_reports (id, user_id, song_id, position_ms, state, playback_rate, client) VALUES (?, ?, ?, ?, ?, ?, ?)`,
+		idgen.New("pr"), userID, songID, positionMs, state, playbackRate, client)
+	return err
+}