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aggregate_service.go
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/
aggregate_service.go
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package aggregate
import (
"context"
"errors"
"github.com/bloock/bloock-managed-api/internal/config"
"github.com/bloock/bloock-managed-api/internal/domain"
"github.com/bloock/bloock-managed-api/internal/domain/repository"
"github.com/bloock/bloock-managed-api/internal/pkg"
bloock_repository "github.com/bloock/bloock-managed-api/internal/platform/repository"
"github.com/bloock/bloock-managed-api/internal/platform/repository/sql/connection"
"github.com/rs/zerolog"
)
var (
ErrApiKeyNotFound = errors.New("api key not found")
ErrMinimumPendingMessages = errors.New("minimum number of messages to aggregate is 2")
)
type ServiceAggregator struct {
integrityRepository repository.IntegrityRepository
merkleTreeRepository repository.MerkleTreeRepository
messageRepository repository.MessageAggregatorRepository
metadataRepository repository.MetadataRepository
processRepository repository.ProcessRepository
apiKey string
logger zerolog.Logger
}
func NewServiceAggregator(ctx context.Context, l zerolog.Logger, ent *connection.EntConnection) *ServiceAggregator {
logger := l.With().Caller().Str("component", "service-aggregator").Logger()
apiKey := pkg.GetApiKeyFromContext(ctx)
if apiKey == "" {
apiKey = config.Configuration.Bloock.ApiKey
}
return &ServiceAggregator{
apiKey: apiKey,
integrityRepository: bloock_repository.NewBloockIntegrityRepository(ctx, l),
merkleTreeRepository: bloock_repository.NewMerkleTreeRepository(l),
messageRepository: bloock_repository.NewMessageAggregatorRepository(ctx, l, ent),
metadataRepository: bloock_repository.NewBloockMetadataRepository(ctx, l, ent),
processRepository: bloock_repository.NewProcessRepository(ctx, l, ent),
logger: logger,
}
}
func (s ServiceAggregator) Aggregate(ctx context.Context) error {
if s.apiKey == "" {
return ErrApiKeyNotFound
}
pendingMessages, err := s.messageRepository.GetPendingMessages(ctx)
if err != nil {
return err
}
if len(pendingMessages) <= 1 {
err = ErrMinimumPendingMessages
s.logger.Error().Err(err).Msg("")
return err
}
merkleTree, err := s.merkleTreeRepository.Create(ctx, pendingMessages)
if err != nil {
return err
}
rootCertification, err := s.integrityRepository.CertifyFromHash(ctx, merkleTree.Root, s.apiKey)
if err != nil {
return err
}
if err = s.metadataRepository.SaveCertification(ctx, rootCertification); err != nil {
return err
}
for _, pm := range pendingMessages {
messageProof, ok := merkleTree.Proof[pm.Hash]
if !ok {
continue
}
updatedMessage := domain.Message{
Hash: pm.Hash,
Proof: messageProof,
AnchorID: rootCertification.AnchorID,
Root: rootCertification.Hash,
}
if err = s.messageRepository.UpdateMessage(ctx, updatedMessage); err != nil {
s.logger.Error().Err(err).Msg("")
continue
}
}
return s.processRepository.UpdateAggregatedAnchorID(ctx, rootCertification.AnchorID)
}