package store

import (
	"fmt"

	"gorm.io/gorm"
	"gorm.io/gorm/clause"

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

type OrphanStore struct{ db *gorm.DB }

func NewOrphanStore(db *gorm.DB) *OrphanStore { return &OrphanStore{db: db} }

// Record 幂等落一条孤儿(tx_id 冲突 no-op)。返回是否新记(供告警只喊一次)。
func (s *OrphanStore) Record(o *model.OrphanPayment) (bool, error) {
	res := s.db.Clauses(clause.OnConflict{
		Columns:   []clause.Column{{Name: "tx_id"}},
		DoNothing: true,
	}).Create(o)
	if res.Error != nil {
		return false, fmt.Errorf("store.OrphanStore.Record: %w", res.Error)
	}
	return res.RowsAffected > 0, nil
}