Command rework

internal/db/repos/twitchrepo/repo.go

@@ -113,3 +113,31 @@ func (r *Repo) SetNotificationChannel(ctx context.Context, guildID, channelID in
 	return err
 }
 
+// IsEnabled reports whether Twitch notifications are enabled for guildID.
+// A guild with no twitch_config row yet defaults to enabled, matching the
+// column's own DEFAULT TRUE - "never configured" and "explicitly on" are
+// the same state until someone actually flips it off.
+func (r *Repo) IsEnabled(ctx context.Context, guildID int64) (bool, error) {
+	const q = `SELECT enabled FROM twitch_config WHERE guild_id = $1`
+	var enabled bool
+	err := r.db.QueryRowContext(ctx, q, guildID).Scan(&enabled)
+	if err == sql.ErrNoRows {
+		return true, nil
+	}
+	if err != nil {
+		return false, err
+	}
+	return enabled, nil
+}
+
+func (r *Repo) SetEnabled(ctx context.Context, guildID int64, enabled bool) error {
+	const q = `
+		INSERT INTO twitch_config (guild_id, enabled)
+		VALUES ($1, $2)
+		ON CONFLICT (guild_id)
+		DO UPDATE SET enabled = EXCLUDED.enabled
+	`
+	_, err := r.db.ExecContext(ctx, q, guildID, enabled)
+	return err
+}
+