84 lines
2.4 KiB
Go
84 lines
2.4 KiB
Go
// Copyright 2018 Vulcanize
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package frob
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import (
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"bytes"
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"encoding/json"
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"fmt"
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log "github.com/sirupsen/logrus"
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"github.com/ethereum/go-ethereum/accounts/abi/bind"
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"github.com/ethereum/go-ethereum/common"
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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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)
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type FrobConverter struct{}
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func (FrobConverter) ToEntities(contractAbi string, ethLogs []types.Log) ([]interface{}, error) {
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var entities []interface{}
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log.Info("blah")
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for _, ethLog := range ethLogs {
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entity := FrobEntity{}
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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, "Frob", ethLog)
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if err != nil {
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return entities, err
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}
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entity.LogIndex = ethLog.Index
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entity.TransactionIndex = ethLog.TxIndex
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entity.Raw = ethLog
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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 (FrobConverter) ToModels(entities []interface{}) ([]interface{}, error) {
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var models []interface{}
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for _, entity := range entities {
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frobEntity, ok := entity.(FrobEntity)
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if !ok {
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return nil, fmt.Errorf("entity of type %T, not %T", entity, FrobEntity{})
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}
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rawLog, err := json.Marshal(frobEntity.Raw)
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if err != nil {
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return nil, err
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}
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model := FrobModel{
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Ilk: string(bytes.Trim(frobEntity.Ilk[:], "\x00)")),
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Urn: common.BytesToAddress(frobEntity.Urn[:]).String(),
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Ink: frobEntity.Ink.String(),
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Art: frobEntity.Art.String(),
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Dink: frobEntity.Dink.String(),
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Dart: frobEntity.Dart.String(),
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IArt: frobEntity.IArt.String(),
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LogIndex: frobEntity.LogIndex,
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TransactionIndex: frobEntity.TransactionIndex,
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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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