New code verification service

api/pkg/model/confirmation.go

@@ -0,0 +1,43 @@
+package model
+
+import (
+	"time"
+
+	"github.com/tech/sendico/pkg/mservice"
+	"go.mongodb.org/mongo-driver/bson/primitive"
+)
+
+type ConfirmationTarget string
+
+const (
+	ConfirmationTargetLogin  ConfirmationTarget = "login"
+	ConfirmationTargetPayout ConfirmationTarget = "payout"
+)
+
+// ConfirmationCode stores verification codes for operations like login or payouts.
+type ConfirmationCode struct {
+	AccountBoundBase `bson:",inline" json:",inline"`
+
+	Destination   string             `bson:"destination" json:"destination"`
+	Target        ConfirmationTarget `bson:"target" json:"target"`
+	CodeHash      []byte             `bson:"codeHash" json:"-"`
+	Salt          []byte             `bson:"salt" json:"-"`
+	ExpiresAt     time.Time          `bson:"expiresAt" json:"expiresAt"`
+	Attempts      int                `bson:"attempts" json:"attempts"`
+	MaxAttempts   int                `bson:"maxAttempts" json:"maxAttempts"`
+	ResendCount   int                `bson:"resendCount" json:"resendCount"`
+	ResendLimit   int                `bson:"resendLimit" json:"resendLimit"`
+	CooldownUntil time.Time          `bson:"cooldownUntil" json:"cooldownUntil"`
+	Used          bool               `bson:"used" json:"used"`
+}
+
+func (c *ConfirmationCode) Collection() string {
+	return mservice.Confirmations
+}
+
+func NewConfirmationCode(accountRef primitive.ObjectID) *ConfirmationCode {
+	cc := &ConfirmationCode{}
+	cc.SetID(primitive.NewObjectID())
+	cc.AccountRef = &accountRef
+	return cc
+}