forked from cerc-io/ipld-eth-server
95 lines
2.7 KiB
Go
95 lines
2.7 KiB
Go
// VulcanizeDB
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// Copyright © 2018 Vulcanize
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package bite
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import (
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"encoding/json"
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"fmt"
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"github.com/ethereum/go-ethereum/accounts/abi/bind"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/vulcanize/vulcanizedb/pkg/geth"
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"github.com/vulcanize/vulcanizedb/pkg/transformers/shared"
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)
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type BiteConverter struct{}
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func (BiteConverter) ToEntities(contractAbi string, ethLogs []types.Log) ([]interface{}, error) {
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var entities []interface{}
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for _, ethLog := range ethLogs {
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entity := &BiteEntity{}
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address := ethLog.Address
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abi, err := geth.ParseAbi(contractAbi)
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if err != nil {
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return nil, err
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}
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contract := bind.NewBoundContract(address, abi, nil, nil, nil)
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err = contract.UnpackLog(entity, "Bite", ethLog)
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if err != nil {
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return nil, err
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}
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entity.Raw = ethLog
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entity.LogIndex = ethLog.Index
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entity.TransactionIndex = ethLog.TxIndex
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entities = append(entities, *entity)
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}
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return entities, nil
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}
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func (converter BiteConverter) ToModels(entities []interface{}) ([]interface{}, error) {
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var models []interface{}
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for _, entity := range entities {
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biteEntity, ok := entity.(BiteEntity)
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if !ok {
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return nil, fmt.Errorf("entity of type %T, not %T", entity, BiteEntity{})
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}
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ilk := shared.GetHexWithoutPrefix(biteEntity.Ilk[:])
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urn := shared.GetHexWithoutPrefix(biteEntity.Urn[:])
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ink := biteEntity.Ink
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art := biteEntity.Art
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iArt := biteEntity.IArt
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tab := biteEntity.Tab
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flip := biteEntity.Flip
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logIdx := biteEntity.LogIndex
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txIdx := biteEntity.TransactionIndex
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rawLog, err := json.Marshal(biteEntity.Raw)
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if err != nil {
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return nil, err
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}
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model := BiteModel{
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Ilk: ilk,
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Urn: urn,
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Ink: shared.BigIntToString(ink),
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Art: shared.BigIntToString(art),
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IArt: shared.BigIntToString(iArt),
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Tab: shared.BigIntToString(tab),
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NFlip: shared.BigIntToString(flip),
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LogIndex: logIdx,
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TransactionIndex: txIdx,
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Raw: rawLog,
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}
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models = append(models, model)
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}
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return models, nil
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}
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