package creator

import "context"

// Cover completion cannot rewrite an event, a delivery cursor, or its history flag.
func (s *Store) UpdateListenerEventCovers(ctx context.Context, accountID, generation string, items []ListenerDelivery) error {
	tx, err := s.db.BeginTx(ctx, nil)
	if err != nil {
		return err
	}
	defer tx.Rollback()
	var id int64
	var enabled bool
	var current string
	err = tx.QueryRowContext(ctx, `SELECT l.account_id,l.enabled,l.generation FROM creator_account_listener l
 JOIN social_account a ON a.id=l.account_id WHERE a.account_id=$1 FOR UPDATE OF l`, accountID).Scan(&id, &enabled, &current)
	if err != nil {
		return rowError(err)
	}
	if !enabled || current != generation {
		return ErrConflict
	}
	for _, d := range items {
		if d.Notice == nil || d.Notice.WorkID == "" {
			continue
		}
		n := d.Notice
		if err := d.Validate(); err != nil {
			return err
		}
		_, err = tx.ExecContext(ctx, `UPDATE creator_account_event SET work_cover_error=$1 WHERE account_id=$2 AND event_key=$3 AND work_id=$4 AND work_author_uid=$5`, n.WorkCoverError, id, n.EventKey, n.WorkID, n.WorkAuthorUID)
		if err != nil {
			return err
		}
	}
	return tx.Commit()
}