proc/worker/account.go
func (w *Worker) PreAccountAddBalanceApprove(job *data.Job) error {
	logger := w.logger.Add("method", "PreAccountAddBalanceApprove", "job", job)

	acc, err := w.relatedAccount(logger, job,
		data.JobPreAccountAddBalanceApprove)
	if err != nil {
		return err
	}

	logger = logger.Add("account", acc)

	jobData, err := w.balanceData(logger, job)
	if err != nil {
		return fmt.Errorf("failed to parse job data: %v", err)
	}

	addr, err := data.HexToAddress(acc.EthAddr)
	if err != nil {
		logger.Error(err.Error())
		return ErrParseEthAddr
	}

	amount, err := w.ethBack.PTCBalanceOf(&bind.CallOpts{}, addr)
	if err != nil {
		logger.Error(err.Error())
		return ErrPTCRetrieveBalance
	}

	if amount.Uint64() < uint64(jobData.Amount) {
		return ErrInsufficientPTCBalance
	}

	ethBalance, err := w.ethBalance(logger, addr)
	if err != nil {
		return err
	}

	wantedEthBalance := w.gasConf.PTC.Approve * jobData.GasPrice

	if wantedEthBalance > ethBalance.Uint64() {
		return ErrInsufficientEthBalance
	}

	key, err := w.key(logger, acc.PrivateKey)
	if err != nil {
		return err
	}

	auth := bind.NewKeyedTransactor(key)
	auth.GasLimit = w.gasConf.PTC.Approve
	auth.GasPrice = new(big.Int).SetUint64(jobData.GasPrice)
	tx, err := w.ethBack.PTCIncreaseApproval(auth,
		w.pscAddr, new(big.Int).SetUint64(jobData.Amount))
	if err != nil {
		logger.Error(err.Error())
		return ErrPTCIncreaseApproval
	}

	return w.saveEthTX(logger, job, tx, "PTCIncreaseApproval", job.RelatedType,
		job.RelatedID, acc.EthAddr, data.HexFromBytes(w.pscAddr.Bytes()))
}
func (w *Worker) PreAccountAddBalanceApprove(job *data.Job) error {
	logger := w.logger.Add("method", "PreAccountAddBalanceApprove", "job", job)

	acc, err := w.relatedAccount(logger, job,
		data.JobPreAccountAddBalanceApprove)
	if err != nil {
		return err
	}

	logger = logger.Add("account", acc)

	jobData, err := w.balanceData(logger, job)
	if err != nil {
		return fmt.Errorf("failed to parse job data: %v", err)
	}

	addr, err := data.HexToAddress(acc.EthAddr)
	if err != nil {
		logger.Error(err.Error())
		return ErrParseEthAddr
	}

	amount, err := w.ethBack.PTCBalanceOf(&bind.CallOpts{}, addr)
	if err != nil {
		logger.Error(err.Error())
		return ErrPTCRetrieveBalance
	}

	if amount.Uint64() < uint64(jobData.Amount) {
		return ErrInsufficientPTCBalance
	}

	ethBalance, err := w.ethBalance(logger, addr)
	if err != nil {
		return err
	}

	wantedEthBalance := w.gasConf.PTC.Approve * jobData.GasPrice

	if wantedEthBalance > ethBalance.Uint64() {
		return ErrInsufficientEthBalance
	}

	key, err := w.key(logger, acc.PrivateKey)
	if err != nil {
		return err
	}

	auth := bind.NewKeyedTransactor(key)
	auth.GasLimit = w.gasConf.PTC.Approve
	auth.GasPrice = new(big.Int).SetUint64(jobData.GasPrice)
	tx, err := w.ethBack.PTCIncreaseApproval(auth,
		w.pscAddr, new(big.Int).SetUint64(jobData.Amount))
	if err != nil {
		logger.Error(err.Error())
		return ErrPTCIncreaseApproval
	}

	return w.saveEthTX(logger, job, tx, "PTCIncreaseApproval", job.RelatedType,
		job.RelatedID, acc.EthAddr, data.HexFromBytes(w.pscAddr.Bytes()))
}
func ( w * Worker ) PreAccountAddBalanceApprove ( job * data . Job ) error { logger := w . logger . Add ( " " , " " , " " , job ) acc , err := w . relatedAccount ( logger , job , data . JobPreAccountAddBalanceApprove ) if err != nil { return err } logger = logger . Add ( " " , acc ) jobData , err := w . balanceData ( logger , job ) if err != nil { return fmt . Errorf ( " " , err ) } addr , err := data . HexToAddress ( acc . EthAddr ) if err != nil { logger . Error ( err . Error ( ) ) return ErrParseEthAddr } amount , err := w . ethBack . PTCBalanceOf ( & bind . CallOpts { } , addr ) if err != nil { logger . Error ( err . Error ( ) ) return ErrPTCRetrieveBalance } if amount . Uint64 ( ) < uint64 ( jobData . Amount ) { return ErrInsufficientPTCBalance } ethBalance , err := w . ethBalance ( logger , addr ) if err != nil { return err } wantedEthBalance := w . gasConf . PTC . Approve * jobData . GasPrice if wantedEthBalance > ethBalance . Uint64 ( ) { return ErrInsufficientEthBalance } key , err := w . key ( logger , acc . PrivateKey ) if err != nil { return err } auth := bind . NewKeyedTransactor ( key ) auth . GasLimit = w . gasConf . PTC . Approve auth . GasPrice = new ( big . Int ) . SetUint64 ( jobData . GasPrice ) tx , err := w . ethBack . PTCIncreaseApproval ( auth , w . pscAddr , new ( big . Int ) . SetUint64 ( jobData . Amount ) ) if err != nil { logger . Error ( err . Error ( ) ) return ErrPTCIncreaseApproval } return w . saveEthTX ( logger , job , tx , " " , job . RelatedType , job . RelatedID , acc . EthAddr , data . HexFromBytes ( w . pscAddr . Bytes ( ) ) ) }
// PreAccountAddBalanceApprove approve balance if amount exists.
PreAccountAddBalanceApprove approve balance if amount exists .