package chain

import (
	"time"

	"gorm.io/gorm"
)

// UserWallet stores an encrypted ed25519 keypair linked to a user.
type UserWallet struct {
	ID               uint           `json:"id"        gorm:"primaryKey"`
	CreatedAt        time.Time      `json:"createdAt"`
	UpdatedAt        time.Time      `json:"updatedAt"`
	DeletedAt        gorm.DeletedAt `json:"-"         gorm:"index"`
	UserID           uint           `json:"userId"    gorm:"uniqueIndex;not null"`
	PubKeyHex        string         `json:"pubKeyHex" gorm:"type:varchar(64);uniqueIndex;not null"`
	Address          string         `json:"address"   gorm:"type:varchar(40);uniqueIndex;not null"`
	EncryptedPrivKey string         `json:"-"         gorm:"type:varchar(512);not null"`
	EncNonce         string         `json:"-"         gorm:"type:varchar(48);not null"`
	KeyVersion       int            `json:"-"         gorm:"type:tinyint;default:1;not null"`
	HKDFSalt         string         `json:"-"         gorm:"type:varchar(32)"` // 16 bytes hex, nullable for v1
}