package nkode

import (
	m "go-nkode/core/model"
	"go-nkode/util"
)

type User struct {
	Username           m.Username
	EncipheredPasscode m.EncipheredNKode
	UserKeys           UserCipherKeys
	Interface          UserInterface
	Renew              bool
}

func (u *User) DecipherMask(setVals []uint64, passcodeLen int) ([]uint64, error) {
	return u.UserKeys.DecipherMask(u.EncipheredPasscode.Mask, setVals, passcodeLen)
}

func (u *User) RenewKeys(setXor []uint64, attrXor []uint64) error {
	u.Renew = true
	var err error
	u.UserKeys.SetKey, err = util.XorLists(setXor, u.UserKeys.SetKey)
	if err != nil {
		return err
	}
	u.UserKeys.AlphaKey, err = util.XorLists(attrXor, u.UserKeys.AlphaKey)
	return err
}

func (u *User) RefreshPasscode(passcodeAttrIdx []int, customerAttributes CustomerAttributes) error {
	newKeys, err := NewUserCipherKeys(customerAttributes.KeypadSize, customerAttributes.SetVals, u.UserKeys.MaxNKodeLen)
	if err != nil {
		return err
	}

	encipheredPasscode, err := newKeys.EncipherNKode(passcodeAttrIdx, customerAttributes)
	if err != nil {
		return err
	}

	u.UserKeys = *newKeys
	u.EncipheredPasscode = *encipheredPasscode
	u.Renew = false
	return nil
}