vat.fold: switch to batched interface

pkg/transformers/test_data/mocks/vat_fold/converter.go

@@ -23,12 +23,12 @@ import (
 
 type MockVatFoldConverter struct {
 	converterErr error
-	PassedLog    types.Log
+	PassedLogs   []types.Log
 }
 
-func (converter *MockVatFoldConverter) ToModel(ethLog types.Log) (vat_fold.VatFoldModel, error) {
+func (converter *MockVatFoldConverter) ToModels(ethLogs []types.Log) ([]vat_fold.VatFoldModel, error) {
-	converter.PassedLog = ethLog
+	converter.PassedLogs = ethLogs
-	return test_data.VatFoldModel, converter.converterErr
+	return []vat_fold.VatFoldModel{test_data.VatFoldModel}, converter.converterErr
 }
 
 func (converter *MockVatFoldConverter) SetConverterError(e error) {

pkg/transformers/test_data/mocks/vat_fold/repository.go

@@ -15,32 +15,45 @@
 package vat_fold
 
 import (
+	. "github.com/onsi/gomega"
+
 	"github.com/vulcanize/vulcanizedb/pkg/core"
 	"github.com/vulcanize/vulcanizedb/pkg/transformers/vat_fold"
 )
 
 type MockVatFoldRepository struct {
 	createErr                       error
+	markHeaderCheckedErr            error
+	markHeaderCheckedPassedHeaderID int64
 	missingHeaders                  []core.Header
 	missingHeadersErr               error
 	PassedStartingBlockNumber       int64
 	PassedEndingBlockNumber         int64
 	PassedHeaderID                  int64
-	PassedModel               vat_fold.VatFoldModel
+	PassedModels                    []vat_fold.VatFoldModel
 }
 
-func (repository *MockVatFoldRepository) Create(headerID int64, model vat_fold.VatFoldModel) error {
+func (repository *MockVatFoldRepository) Create(headerID int64, models []vat_fold.VatFoldModel) error {
 	repository.PassedHeaderID = headerID
-	repository.PassedModel = model
+	repository.PassedModels = models
 	return repository.createErr
 }
 
+func (repository *MockVatFoldRepository) MarkHeaderChecked(headerID int64) error {
+	repository.markHeaderCheckedPassedHeaderID = headerID
+	return repository.markHeaderCheckedErr
+}
+
 func (repository *MockVatFoldRepository) MissingHeaders(startingBlockNumber, endingBlockNumber int64) ([]core.Header, error) {
 	repository.PassedStartingBlockNumber = startingBlockNumber
 	repository.PassedEndingBlockNumber = endingBlockNumber
 	return repository.missingHeaders, repository.missingHeadersErr
 }
 
+func (repository *MockVatFoldRepository) SetMarkHeaderCheckedErr(e error) {
+	repository.markHeaderCheckedErr = e
+}
+
 func (repository *MockVatFoldRepository) SetMissingHeadersErr(e error) {
 	repository.missingHeadersErr = e
 }
@@ -52,3 +65,7 @@ func (repository *MockVatFoldRepository) SetMissingHeaders(headers []core.Header
 func (repository *MockVatFoldRepository) SetCreateError(e error) {
 	repository.createErr = e
 }
+
+func (repository *MockVatFoldRepository) AssertMarkHeaderCheckedCalledWith(i int64) {
+	Expect(repository.markHeaderCheckedPassedHeaderID).To(Equal(i))
+}

pkg/transformers/vat_fold/converter.go

@@ -26,29 +26,35 @@ import (
 )
 
 type Converter interface {
-	ToModel(ethLog types.Log) (VatFoldModel, error)
+	ToModels(ethLogs []types.Log) ([]VatFoldModel, error)
 }
 
 type VatFoldConverter struct{}
 
-func (VatFoldConverter) ToModel(ethLog types.Log) (VatFoldModel, error) {
+func (VatFoldConverter) ToModels(ethLogs []types.Log) ([]VatFoldModel, error) {
+	var models []VatFoldModel
+	for _, ethLog := range ethLogs {
 		err := verifyLog(ethLog)
 		if err != nil {
-		return VatFoldModel{}, err
+			return nil, err
 		}
 
 		ilk := string(bytes.Trim(ethLog.Topics[1].Bytes(), "\x00"))
-	urn := common.HexToAddress(ethLog.Topics[2].String()).String()
+		urn := common.BytesToAddress(ethLog.Topics[2].Bytes()).String()
 		rate := big.NewInt(0).SetBytes(ethLog.Topics[3].Bytes()).String()
 		raw, err := json.Marshal(ethLog)
 
-	return VatFoldModel{
+		model := VatFoldModel{
 			Ilk:              ilk,
 			Urn:              urn,
 			Rate:             rate,
 			TransactionIndex: ethLog.TxIndex,
 			Raw:              raw,
-	}, err
+		}
+
+		models = append(models, model)
+	}
+	return models, nil
 }
 
 func verifyLog(log types.Log) error {

pkg/transformers/vat_fold/converter_test.go

@@ -28,7 +28,7 @@ var _ = Describe("Vat fold converter", func() {
 		converter := vat_fold.VatFoldConverter{}
 		badLog := types.Log{}
 
-		_, err := converter.ToModel(badLog)
+		_, err := converter.ToModels([]types.Log{badLog})
 
 		Expect(err).To(HaveOccurred())
 	})
@@ -36,9 +36,9 @@ var _ = Describe("Vat fold converter", func() {
 	It("converts a log to an model", func() {
 		converter := vat_fold.VatFoldConverter{}
 
-		model, err := converter.ToModel(test_data.EthVatFoldLog)
+		model, err := converter.ToModels([]types.Log{test_data.EthVatFoldLog})
 
 		Expect(err).NotTo(HaveOccurred())
-		Expect(model).To(Equal(test_data.VatFoldModel))
+		Expect(model).To(Equal([]vat_fold.VatFoldModel{test_data.VatFoldModel}))
 	})
 })

pkg/transformers/vat_fold/repository.go

@@ -20,7 +20,8 @@ import (
 )
 
 type Repository interface {
-	Create(headerID int64, model VatFoldModel) error
+	Create(headerID int64, models []VatFoldModel) error
+	MarkHeaderChecked(headerID int64) error
 	MissingHeaders(startingBlockNumber, endingBlockNumber int64) ([]core.Header, error)
 }
 
@@ -34,10 +35,31 @@ func NewVatFoldRepository(db *postgres.DB) VatFoldRepository {
 	}
 }
 
-func (repository VatFoldRepository) Create(headerID int64, model VatFoldModel) error {
+func (repository VatFoldRepository) Create(headerID int64, models []VatFoldModel) error {
-	_, err := repository.db.Exec(`INSERT INTO maker.vat_fold (header_id, ilk, urn, rate, raw_log, tx_idx)
+	tx, err := repository.db.Begin()
+	if err != nil {
+		return err
+	}
+	for _, model := range models {
+		_, err = tx.Exec(
+			`INSERT into maker.vat_fold (header_id, ilk, urn, rate, tx_idx, raw_log)
         VALUES($1, $2, $3, $4::NUMERIC, $5, $6)`,
-		headerID, model.Ilk, model.Urn, model.Rate, model.Raw, model.TransactionIndex)
+			headerID, model.Ilk, model.Urn, model.Rate, model.TransactionIndex, model.Raw,
+		)
+		if err != nil {
+			tx.Rollback()
+			return err
+		}
+	}
+
+	return tx.Commit()
+}
+
+func (repository VatFoldRepository) MarkHeaderChecked(headerID int64) error {
+	_, err := repository.db.Exec(`INSERT INTO public.checked_headers (header_id, vat_fold_checked)
+		VALUES ($1, $2) 
+	ON CONFLICT (header_id) DO
+		UPDATE SET vat_fold_checked = $2`, headerID, true)
 	return err
 }
 
@@ -46,8 +68,8 @@ func (repository VatFoldRepository) MissingHeaders(startingBlockNumber, endingBl
 	err := repository.db.Select(
 		&result,
 		`SELECT headers.id, headers.block_number FROM headers
-               LEFT JOIN maker.vat_fold on headers.id = header_id
+               LEFT JOIN checked_headers on headers.id = header_id
-               WHERE header_id ISNULL
+               WHERE (header_id ISNULL OR vat_fold_checked IS FALSE)
                AND headers.block_number >= $1
                AND headers.block_number <= $2
                AND headers.eth_node_fingerprint = $3`,
@@ -55,6 +77,5 @@ func (repository VatFoldRepository) MissingHeaders(startingBlockNumber, endingBl
 		endingBlockNumber,
 		repository.db.Node.ID,
 	)
-
 	return result, err
 }

pkg/transformers/vat_fold/repository_test.go

@@ -46,7 +46,7 @@ var _ = Describe("", func() {
 			headerID = id
 
 			vatFoldRepository = vat_fold.NewVatFoldRepository(db)
-			err = vatFoldRepository.Create(headerID, test_data.VatFoldModel)
+			err = vatFoldRepository.Create(headerID, []vat_fold.VatFoldModel{test_data.VatFoldModel})
 			Expect(err).NotTo(HaveOccurred())
 		})
 
@@ -63,7 +63,7 @@ var _ = Describe("", func() {
 		})
 
 		It("does not duplicate vat events", func() {
-			err := vatFoldRepository.Create(headerID, test_data.VatFoldModel)
+			err := vatFoldRepository.Create(headerID, []vat_fold.VatFoldModel{test_data.VatFoldModel})
 
 			Expect(err).To(HaveOccurred())
 			Expect(err.Error()).To(ContainSubstring("pq: duplicate key value violates unique constraint"))
@@ -164,7 +164,10 @@ func initRepository(options repositoryOptions) vat_fold.VatFoldRepository {
 	}
 
 	if options.storeEvent {
-		err := vatfoldRepository.Create(headerIDs[options.storedEventBlockNumber], test_data.VatFoldModel)
+		err := vatfoldRepository.Create(
+			headerIDs[options.storedEventBlockNumber],
+			[]vat_fold.VatFoldModel{test_data.VatFoldModel},
+		)
 		Expect(err).NotTo(HaveOccurred())
 	}
 

pkg/transformers/vat_fold/transformer.go

@@ -59,15 +59,19 @@ func (transformer VatFoldTransformer) Execute() error {
 		if err != nil {
 			return err
 		}
-		for _, log := range matchingLogs {
+		if len(matchingLogs) < 1 {
-			model, err := transformer.Converter.ToModel(log)
+			err = transformer.Repository.MarkHeaderChecked(header.Id)
 			if err != nil {
 				return err
 			}
-			err = transformer.Repository.Create(header.Id, model)
+		}
+		models, err := transformer.Converter.ToModels(matchingLogs)
 		if err != nil {
 			return err
 		}
+		err = transformer.Repository.Create(header.Id, models)
+		if err != nil {
+			return err
 		}
 	}
 	return nil

pkg/transformers/vat_fold/transformer_test.go

@@ -134,7 +134,7 @@ var _ = Describe("Vat fold transformer", func() {
 		err := transformer.Execute()
 
 		Expect(err).NotTo(HaveOccurred())
-		Expect(converter.PassedLog).To(Equal(test_data.EthVatFoldLog))
+		Expect(converter.PassedLogs).To(Equal([]types.Log{test_data.EthVatFoldLog}))
 	})
 
 	It("returns error if converter returns error", func() {
@@ -161,7 +161,7 @@ var _ = Describe("Vat fold transformer", func() {
 
 		Expect(err).NotTo(HaveOccurred())
 		Expect(repository.PassedHeaderID).To(Equal(fakeHeader.Id))
-		Expect(repository.PassedModel).To(Equal(test_data.VatFoldModel))
+		Expect(repository.PassedModels).To(Equal([]vat_fold.VatFoldModel{test_data.VatFoldModel}))
 	})
 
 	It("returns error if repository returns error for create", func() {