Files
yinghuoapi/backend/internal/service/redeem_code.go
2025-12-26 16:45:40 +08:00

42 lines
642 B
Go

package service
import (
"crypto/rand"
"encoding/hex"
"time"
)
type RedeemCode struct {
ID int64
Code string
Type string
Value float64
Status string
UsedBy *int64
UsedAt *time.Time
Notes string
CreatedAt time.Time
GroupID *int64
ValidityDays int
User *User
Group *Group
}
func (r *RedeemCode) IsUsed() bool {
return r.Status == StatusUsed
}
func (r *RedeemCode) CanUse() bool {
return r.Status == StatusUnused
}
func GenerateRedeemCode() (string, error) {
b := make([]byte, 16)
if _, err := rand.Read(b); err != nil {
return "", err
}
return hex.EncodeToString(b), nil
}