package store

import (
	"fmt"

	"github.com/wangjia/pay/internal/model"
)

// AttemptAccountIDs returns the distinct account_ids already tried for an order on a
// channel (used by retry to switch to a not-yet-tried account via PickHint.ExcludeAccounts).
func (s *OrderStore) AttemptAccountIDs(outTradeNo, channel string) ([]string, error) {
	var ids []string
	if err := s.db.Model(&model.Attempt{}).
		Where("out_trade_no = ? AND channel = ? AND account_id <> ''", outTradeNo, channel).
		Distinct().Pluck("account_id", &ids).Error; err != nil {
		return nil, fmt.Errorf("store.AttemptAccountIDs: %w", err)
	}
	return ids, nil
}