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