feat(music): persist live playback state to postgres

The queue and now-playing state only ever lived in the bot's memory, so the dashboard had nothing real to show and a restart silently wiped whatever was queued. Adds a musicrepo package and a syncState call after every queue-changing action (play, skip, pause, volume, stop, track end) that mirrors the current track and queue into music_now_playing and music_queue. No user-visible change yet, this is groundwork for the dashboard queue/now-playing view.
2026-08-29 15:48:27 +01:00
parent c7b960e14a
commit d6687879dd
5 changed files with 176 additions and 20 deletions
@@ -0,0 +1,57 @@
+package musicrepo
+
+import (
+	"context"
+	"database/sql"
+	"time"
+)
+
+type QueueEntry struct {
+	Title       string
+	URL         string
+	RequestedBy int64
+}
+
+type Repo struct {
+	db *sql.DB
+}
+
+func NewRepo(db *sql.DB) *Repo {
+	return &Repo{db: db}
+}
+
+func (r *Repo) SetNowPlaying(ctx context.Context, guildID int64, title, url string, durationSeconds int, startedAt time.Time, paused bool, volume int) error {
+	const q = `INSERT INTO music_now_playing (guild_id, track_title, track_url, duration_seconds, started_at, paused, volume) VALUES ($1, $2, $3, $4, $5, $6, $7) ON CONFLICT (guild_id) DO UPDATE SET track_title = $2, track_url = $3, duration_seconds = $4, started_at = $5, paused = $6, volume = $7`
+	_, err := r.db.ExecContext(ctx, q, guildID, title, url, durationSeconds, startedAt, paused, volume)
+	return err
+}
+
+func (r *Repo) ClearNowPlaying(ctx context.Context, guildID int64) error {
+	const q = `DELETE FROM music_now_playing WHERE guild_id = $1`
+	_, err := r.db.ExecContext(ctx, q, guildID)
+	return err
+}
+
+func (r *Repo) ReplaceQueue(ctx context.Context, guildID int64, entries []QueueEntry) error {
+	tx, err := r.db.BeginTx(ctx, nil)
+	if err != nil {
+		return err
+	}
+	defer tx.Rollback()
+
+	const q = `DELETE FROM music_queue WHERE guild_id = $1`
+	_, err = tx.ExecContext(ctx, q, guildID)
+	if err != nil {
+		return err
+	}
+
+	for i, entry := range entries {
+		const q = `INSERT INTO music_queue (guild_id, track_title, track_url, requested_by, position) VALUES ($1, $2, $3, $4, $5)`
+		_, err = tx.ExecContext(ctx, q, guildID, entry.Title, entry.URL, entry.RequestedBy, i)
+		if err != nil {
+			return err
+		}
+	}
+
+	return tx.Commit()
+}