ipld-eth-server/pkg/transformers/flip_kick/converter.go
2018-09-12 11:35:32 -05:00

87 lines
2.6 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 flip_kick
import (
"encoding/json"
"errors"
"time"
"github.com/ethereum/go-ethereum/accounts/abi/bind"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/vulcanize/vulcanizedb/pkg/geth"
"github.com/vulcanize/vulcanizedb/pkg/transformers/shared"
)
type Converter interface {
ToEntity(contractAddress string, contractAbi string, ethLog types.Log) (*FlipKickEntity, error)
ToModel(flipKick FlipKickEntity) (FlipKickModel, error)
}
type FlipKickConverter struct{}
func (FlipKickConverter) ToEntity(contractAddress string, contractAbi string, ethLog types.Log) (*FlipKickEntity, error) {
entity := &FlipKickEntity{}
address := common.HexToAddress(contractAddress)
abi, err := geth.ParseAbi(contractAbi)
if err != nil {
return entity, err
}
contract := bind.NewBoundContract(address, abi, nil, nil, nil)
err = contract.UnpackLog(entity, "Kick", ethLog)
if err != nil {
return entity, err
}
entity.Raw = ethLog
entity.TransactionIndex = ethLog.TxIndex
return entity, nil
}
func (FlipKickConverter) ToModel(flipKick FlipKickEntity) (FlipKickModel, error) {
if flipKick.Id == nil {
return FlipKickModel{}, errors.New("FlipKick log ID cannot be nil.")
}
id := flipKick.Id.String()
lot := shared.ConvertNilToEmptyString(flipKick.Lot.String())
bid := shared.ConvertNilToEmptyString(flipKick.Bid.String())
gal := flipKick.Gal.String()
endValue := shared.ConvertNilToZeroTimeValue(flipKick.End)
end := time.Unix(endValue, 0)
urn := common.BytesToAddress(flipKick.Urn[:common.AddressLength]).String()
tab := shared.ConvertNilToEmptyString(flipKick.Tab.String())
rawLogJson, err := json.Marshal(flipKick.Raw)
if err != nil {
return FlipKickModel{}, err
}
rawLogString := string(rawLogJson)
return FlipKickModel{
Id: id,
Lot: lot,
Bid: bid,
Gal: gal,
End: end,
Urn: urn,
Tab: tab,
TransactionIndex: flipKick.TransactionIndex,
Raw: rawLogString,
}, nil
}