frostfs-node/pkg/morph/event/neofs/deposit.go
Evgenii Stratonikov 71b87155ef [#521] *: use stdlib errors package
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2021-05-19 16:42:54 +03:00

78 lines
2 KiB
Go

package neofs
import (
"fmt"
"github.com/nspcc-dev/neo-go/pkg/util"
"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
"github.com/nspcc-dev/neofs-node/pkg/morph/client"
"github.com/nspcc-dev/neofs-node/pkg/morph/event"
)
// Deposit structure of neofs.Deposit notification from mainnet chain.
type Deposit struct {
id []byte
amount int64 // Fixed8
from util.Uint160
to util.Uint160
}
// MorphEvent implements Neo:Morph Event interface.
func (Deposit) MorphEvent() {}
// ID is a deposit transaction hash.
func (d Deposit) ID() []byte { return d.id }
// From is a script hash of asset sender in main net.
func (d Deposit) From() util.Uint160 { return d.from }
// To is a script hash of asset receiver in balance contract.
func (d Deposit) To() util.Uint160 { return d.to }
// Amount of transferred assets.
func (d Deposit) Amount() int64 { return d.amount }
// ParseDeposit notification into deposit structure.
func ParseDeposit(params []stackitem.Item) (event.Event, error) {
var ev Deposit
if ln := len(params); ln != 4 {
return nil, event.WrongNumberOfParameters(4, ln)
}
// parse from
from, err := client.BytesFromStackItem(params[0])
if err != nil {
return nil, fmt.Errorf("could not get deposit sender: %w", err)
}
ev.from, err = util.Uint160DecodeBytesBE(from)
if err != nil {
return nil, fmt.Errorf("could not convert deposit sender to uint160: %w", err)
}
// parse amount
ev.amount, err = client.IntFromStackItem(params[1])
if err != nil {
return nil, fmt.Errorf("could not get deposit amount: %w", err)
}
// parse to
to, err := client.BytesFromStackItem(params[2])
if err != nil {
return nil, fmt.Errorf("could not get deposit receiver: %w", err)
}
ev.to, err = util.Uint160DecodeBytesBE(to)
if err != nil {
return nil, fmt.Errorf("could not convert deposit receiver to uint160: %w", err)
}
// parse id
ev.id, err = client.BytesFromStackItem(params[3])
if err != nil {
return nil, fmt.Errorf("could not get deposit id: %w", err)
}
return ev, nil
}