ipld-eth-server/pkg/super_node/btc/converter.go

58 lines
1.9 KiB
Go

// VulcanizeDB
// Copyright © 2019 Vulcanize
// 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 btc
import (
"fmt"
"github.com/vulcanize/vulcanizedb/pkg/super_node/shared"
)
// PayloadConverter satisfies the PayloadConverter interface for bitcoin
type PayloadConverter struct{}
// NewPayloadConverter creates a pointer to a new PayloadConverter which satisfies the PayloadConverter interface
func NewPayloadConverter() *PayloadConverter {
return &PayloadConverter{}
}
// Convert method is used to convert a bitcoin BlockPayload to an IPLDPayload
// Satisfies the shared.PayloadConverter interface
func (pc *PayloadConverter) Convert(payload shared.RawChainData) (shared.StreamedIPLDs, error) {
btcBlockPayload, ok := payload.(BlockPayload)
if !ok {
return nil, fmt.Errorf("btc converter: expected payload type %T got %T", BlockPayload{}, payload)
}
txMeta := make([]TxModel, len(btcBlockPayload.Txs))
for _, tx := range btcBlockPayload.Txs {
index := tx.Index()
txModel := TxModel{
TxHash: tx.Hash().String(),
Index: int64(tx.Index()),
HasWitness: tx.HasWitness(),
}
if tx.HasWitness() {
txModel.WitnessHash = tx.WitnessHash().String()
}
txMeta[index] = txModel
}
return IPLDPayload{
BlockPayload: btcBlockPayload,
TxMetaData: txMeta,
}, nil
}