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account.go
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account.go
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// Copyright (C) 2023 Gobalsky Labs Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package sqlsubscribers
import (
"context"
"time"
"code.vegaprotocol.io/vega/core/events"
"code.vegaprotocol.io/vega/datanode/entities"
"code.vegaprotocol.io/vega/protos/vega"
"github.com/pkg/errors"
"github.com/shopspring/decimal"
)
type AccountEvent interface {
events.Event
Account() vega.Account
}
type AccountService interface {
Obtain(ctx context.Context, a *entities.Account) error
AddAccountBalance(b entities.AccountBalance) error
Flush(ctx context.Context) error
}
type Account struct {
subscriber
accounts AccountService
}
func NewAccount(accounts AccountService) *Account {
return &Account{
accounts: accounts,
}
}
func (as *Account) Types() []events.Type {
return []events.Type{events.AccountEvent}
}
func (as *Account) Flush(ctx context.Context) error {
err := as.accounts.Flush(ctx)
return errors.Wrap(err, "flushing balances")
}
func (as *Account) Push(ctx context.Context, evt events.Event) error {
return as.consume(ctx, evt.(AccountEvent))
}
func (as *Account) consume(ctx context.Context, evt AccountEvent) error {
protoAcc := evt.Account()
acc, err := as.obtainAccountWithProto(ctx, &protoAcc, evt.TxHash(), as.vegaTime)
if err != nil {
return errors.Wrap(err, "obtaining account")
}
balance, err := decimal.NewFromString(protoAcc.Balance)
if err != nil {
return errors.Wrap(err, "parsing account balance")
}
ab := entities.AccountBalance{
Balance: balance,
Account: &acc,
TxHash: entities.TxHash(evt.TxHash()),
VegaTime: as.vegaTime,
}
err = as.accounts.AddAccountBalance(ab)
if err != nil {
return errors.Wrap(err, "adding balance to store")
}
return nil
}
func (as *Account) obtainAccountWithProto(ctx context.Context, va *vega.Account, txHash string, vegaTime time.Time) (entities.Account, error) {
a, err := entities.AccountFromProto(va, entities.TxHash(txHash))
if err != nil {
return entities.Account{}, errors.Wrap(err, "obtaining account for balance")
}
a.VegaTime = vegaTime
err = as.accounts.Obtain(ctx, &a)
if err != nil {
return entities.Account{}, errors.Wrap(err, "obtaining account")
}
return a, nil
}