feat: add otp redis repo

internal/domain/otp.go

@@ -0,0 +1,29 @@
+package domain
+
+import (
+	"backend/pkg/util"
+	"context"
+	"time"
+
+	"github.com/google/uuid"
+)
+
+type OTPRepo interface {
+	Create(ctx context.Context, phone string, otp *OTP) error
+	Delete(ctx context.Context, phone string) error
+}
+
+type OTP struct {
+	ID        uuid.UUID
+	Code      string
+	Phone     string
+	ExpiredAt time.Time
+}
+
+func NewOTP(phone string) *OTP {
+	return &OTP{
+		ID:    uuid.New(),
+		Code:  util.GenOTPCode(),
+		Phone: phone,
+	}
+}