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transfers.go
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transfers.go
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// Copyright (c) 2022 Gobalsky Labs Limited
//
// Use of this software is governed by the Business Source License included
// in the LICENSE.DATANODE file and at https://www.mariadb.com/bsl11.
//
// Change Date: 18 months from the later of the date of the first publicly
// available Distribution of this version of the repository, and 25 June 2022.
//
// On the date above, in accordance with the Business Source License, use
// of this software will be governed by version 3 or later of the GNU General
// Public License.
package sqlsubscribers
import (
"context"
"github.com/pkg/errors"
"github.com/zeta-protocol/zeta/core/events"
"github.com/zeta-protocol/zeta/datanode/entities"
eventspb "github.com/zeta-protocol/zeta/protos/zeta/events/v1"
)
type TransferEvent interface {
events.Event
TransferFunds() eventspb.Transfer
}
type TransferStore interface {
Upsert(ctx context.Context, transfer *entities.Transfer) error
}
type AccountSource interface {
Obtain(ctx context.Context, a *entities.Account) error
GetByID(ctx context.Context, id entities.AccountID) (entities.Account, error)
}
type Transfer struct {
subscriber
store TransferStore
accountSource AccountSource
}
func NewTransfer(store TransferStore, accountSource AccountSource) *Transfer {
return &Transfer{
store: store,
accountSource: accountSource,
}
}
func (rf *Transfer) Types() []events.Type {
return []events.Type{events.TransferEvent}
}
func (rf *Transfer) Push(ctx context.Context, evt events.Event) error {
return rf.consume(ctx, evt.(TransferEvent))
}
func (rf *Transfer) consume(ctx context.Context, event TransferEvent) error {
transfer := event.TransferFunds()
record, err := entities.TransferFromProto(ctx, &transfer, entities.TxHash(event.TxHash()), rf.zetaTime, rf.accountSource)
if err != nil {
return errors.Wrap(err, "converting transfer proto to database entity failed")
}
return errors.Wrap(rf.store.Upsert(ctx, record), "inserting transfer into to SQL store failed")
}