ipld-eth-server/pkg/transformers/pit_file/debt_ceiling/transformer.go
2018-09-05 13:51:18 -05:00

58 lines
1.8 KiB
Go

package debt_ceiling
import (
"github.com/ethereum/go-ethereum/common"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
"github.com/vulcanize/vulcanizedb/pkg/transformers/pit_file"
"github.com/vulcanize/vulcanizedb/pkg/transformers/shared"
)
type PitFileDebtCeilingTransformer struct {
Config shared.TransformerConfig
Converter Converter
Fetcher shared.LogFetcher
Repository Repository
}
type PitFileDebtCeilingTransformerInitializer struct {
Config shared.TransformerConfig
}
func (initializer PitFileDebtCeilingTransformerInitializer) NewPitFileDebtCeilingTransformer(db *postgres.DB, blockChain core.BlockChain) shared.Transformer {
converter := PitFileDebtCeilingConverter{}
fetcher := shared.NewFetcher(blockChain)
repository := NewPitFileDebtCeilingRepository(db)
return PitFileDebtCeilingTransformer{
Config: initializer.Config,
Converter: converter,
Fetcher: fetcher,
Repository: repository,
}
}
func (transformer PitFileDebtCeilingTransformer) Execute() error {
missingHeaders, err := transformer.Repository.MissingHeaders(transformer.Config.StartingBlockNumber, transformer.Config.EndingBlockNumber)
if err != nil {
return err
}
for _, header := range missingHeaders {
topics := [][]common.Hash{{common.HexToHash(shared.PitFileDebtCeilingSignature)}}
matchingLogs, err := transformer.Fetcher.FetchLogs(pit_file.PitFileConfig.ContractAddress, topics, header.BlockNumber)
if err != nil {
return err
}
for _, log := range matchingLogs {
model, err := transformer.Converter.ToModel(pit_file.PitFileConfig.ContractAddress, shared.PitABI, log)
if err != nil {
return err
}
err = transformer.Repository.Create(header.Id, model)
if err != nil {
return err
}
}
}
return nil
}