forked from cerc-io/ipld-eth-server
59 lines
1.4 KiB
Go
59 lines
1.4 KiB
Go
// Copyright 2018 Vulcanize
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package deal
|
|
|
|
import (
|
|
"encoding/json"
|
|
"errors"
|
|
|
|
"github.com/ethereum/go-ethereum/core/types"
|
|
)
|
|
|
|
type Converter interface {
|
|
ToModel(ethLog types.Log) (DealModel, error)
|
|
}
|
|
|
|
type DealConverter struct{}
|
|
|
|
func NewDealConverter() DealConverter {
|
|
return DealConverter{}
|
|
}
|
|
|
|
func (DealConverter) ToModel(ethLog types.Log) (DealModel, error) {
|
|
err := validateLog(ethLog)
|
|
if err != nil {
|
|
return DealModel{}, err
|
|
}
|
|
|
|
bidId := ethLog.Topics[2].Big()
|
|
raw, err := json.Marshal(ethLog)
|
|
if err != nil {
|
|
return DealModel{}, err
|
|
}
|
|
|
|
return DealModel{
|
|
BidId: bidId.String(),
|
|
TransactionIndex: ethLog.TxIndex,
|
|
Raw: raw,
|
|
}, nil
|
|
}
|
|
|
|
func validateLog(ethLog types.Log) error {
|
|
if len(ethLog.Topics) < 3 {
|
|
return errors.New("deal log does not contain expected topics")
|
|
}
|
|
return nil
|
|
}
|