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helper.go
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/
helper.go
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package common
import (
"context"
"errors"
"github.com/gogo/protobuf/proto"
"github.com/nknorg/nkn/v2/common"
"github.com/nknorg/nkn/v2/transaction"
"github.com/nknorg/nkn/v2/vault"
)
func MakeTransferTransaction(wallet *vault.Wallet, receipt common.Uint160, nonce uint64, value, fee common.Fixed64) (*transaction.Transaction, error) {
account, err := wallet.GetDefaultAccount()
if err != nil {
return nil, err
}
// construct transaction
txn, err := transaction.NewTransferAssetTransaction(account.ProgramHash, receipt, nonce, value, fee)
if err != nil {
return nil, err
}
// sign transaction contract
err = wallet.Sign(txn)
if err != nil {
return nil, err
}
return txn, nil
}
func MakeSigChainTransaction(wallet *vault.Wallet, sigChain []byte, nonce uint64) (*transaction.Transaction, error) {
account, err := wallet.GetDefaultAccount()
if err != nil {
return nil, err
}
txn, err := transaction.NewSigChainTransaction(sigChain, account.ProgramHash, nonce)
if err != nil {
return nil, err
}
// sign transaction contract
err = wallet.Sign(txn)
if err != nil {
return nil, err
}
return txn, nil
}
func MakeRegisterNameTransaction(wallet *vault.Wallet, name string, nonce uint64, regFee common.Fixed64, fee common.Fixed64) (*transaction.Transaction, error) {
account, err := wallet.GetDefaultAccount()
if err != nil {
return nil, err
}
registrant := account.PubKey()
txn, err := transaction.NewRegisterNameTransaction(registrant, name, nonce, regFee, fee)
if err != nil {
return nil, err
}
// sign transaction contract
err = wallet.Sign(txn)
if err != nil {
return nil, err
}
return txn, nil
}
func MakeTransferNameTransaction(wallet *vault.Wallet, name string, nonce uint64, fee common.Fixed64, to []byte) (*transaction.Transaction, error) {
account, err := wallet.GetDefaultAccount()
if err != nil {
return nil, err
}
registrant := account.PubKey()
txn, err := transaction.NewTransferNameTransaction(registrant, to, name, nonce, fee)
if err != nil {
return nil, err
}
// sign transaction contract
err = wallet.Sign(txn)
if err != nil {
return nil, err
}
return txn, nil
}
func MakeDeleteNameTransaction(wallet *vault.Wallet, name string, nonce uint64, fee common.Fixed64) (*transaction.Transaction, error) {
account, err := wallet.GetDefaultAccount()
if err != nil {
return nil, err
}
registrant := account.PubKey()
txn, err := transaction.NewDeleteNameTransaction(registrant, name, nonce, fee)
if err != nil {
return nil, err
}
// sign transaction contract
err = wallet.Sign(txn)
if err != nil {
return nil, err
}
return txn, nil
}
func MakeSubscribeTransaction(wallet *vault.Wallet, identifier string, topic string, duration uint32, meta string, nonce uint64, fee common.Fixed64) (*transaction.Transaction, error) {
account, err := wallet.GetDefaultAccount()
if err != nil {
return nil, err
}
subscriber := account.PubKey()
txn, err := transaction.NewSubscribeTransaction(subscriber, identifier, topic, duration, meta, nonce, fee)
if err != nil {
return nil, err
}
// sign transaction contract
err = wallet.Sign(txn)
if err != nil {
return nil, err
}
return txn, nil
}
func MakeUnsubscribeTransaction(wallet *vault.Wallet, identifier string, topic string, nonce uint64, fee common.Fixed64) (*transaction.Transaction, error) {
account, err := wallet.GetDefaultAccount()
if err != nil {
return nil, err
}
subscriber := account.PubKey()
txn, err := transaction.NewUnsubscribeTransaction(subscriber, identifier, topic, nonce, fee)
if err != nil {
return nil, err
}
// sign transaction contract
err = wallet.Sign(txn)
if err != nil {
return nil, err
}
return txn, nil
}
func MakeGenerateIDTransaction(ctx context.Context, wallet *vault.Wallet, regFee common.Fixed64, nonce uint64, txnFee common.Fixed64, maxTxnHash common.Uint256) (*transaction.Transaction, error) {
account, err := wallet.GetDefaultAccount()
if err != nil {
return nil, err
}
pubkey := account.PubKey()
var txn *transaction.Transaction
var txnHash common.Uint256
var i uint64
maxUint64 := ^uint64(0)
for i = uint64(0); i < maxUint64; i++ {
select {
case <-ctx.Done():
return nil, ctx.Err()
default:
}
txn, err = transaction.NewGenerateIDTransaction(pubkey, regFee, nonce, txnFee, proto.EncodeVarint(i))
if err != nil {
return nil, err
}
txnHash = txn.Hash()
if txnHash.CompareTo(maxTxnHash) <= 0 {
break
}
}
if i == maxUint64 {
return nil, errors.New("No available hash found for all uint64 attrs")
}
// sign transaction contract
err = wallet.Sign(txn)
if err != nil {
return nil, err
}
return txn, nil
}
func MakeNanoPayTransaction(wallet *vault.Wallet, recipient common.Uint160, id uint64, amount common.Fixed64, txnExpiration, nanoPayExpiration uint32) (*transaction.Transaction, error) {
account, err := wallet.GetDefaultAccount()
if err != nil {
return nil, err
}
// construct transaction
txn, err := transaction.NewNanoPayTransaction(account.ProgramHash, recipient, id, amount, txnExpiration, nanoPayExpiration)
if err != nil {
return nil, err
}
// sign transaction contract
err = wallet.Sign(txn)
if err != nil {
return nil, err
}
return txn, nil
}
func MakeIssueAssetTransaction(wallet *vault.Wallet, name, symbol string, totalSupply common.Fixed64, precision uint32, nonce uint64, fee common.Fixed64) (*transaction.Transaction, error) {
account, err := wallet.GetDefaultAccount()
if err != nil {
return nil, err
}
// construct transaction
txn, err := transaction.NewIssueAssetTransaction(account.ProgramHash, name, symbol, totalSupply, precision, nonce, fee)
if err != nil {
return nil, err
}
// sign transaction contract
err = wallet.Sign(txn)
if err != nil {
return nil, err
}
return txn, nil
}