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celestia.go
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celestia.go
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package celestia
import (
"context"
"encoding/json"
"fmt"
"time"
"github.com/gogo/protobuf/proto"
"github.com/celestiaorg/go-cnc"
"github.com/furyaxyz/furyint/da"
"github.com/furyaxyz/furyint/log"
"github.com/furyaxyz/furyint/store"
"github.com/furyaxyz/furyint/types"
pb "github.com/furyaxyz/furyint/types/pb/furyint"
)
// DataAvailabilityLayerClient use celestia-node public API.
type DataAvailabilityLayerClient struct {
client *cnc.Client
config Config
logger log.Logger
}
var _ da.DataAvailabilityLayerClient = &DataAvailabilityLayerClient{}
var _ da.BatchRetriever = &DataAvailabilityLayerClient{}
// Config stores Celestia DALC configuration parameters.
type Config struct {
BaseURL string `json:"base_url"`
Timeout time.Duration `json:"timeout"`
Fee int64 `json:"fee"`
GasLimit uint64 `json:"gas_limit"`
NamespaceID [8]byte `json:"namespace_id"`
}
// Init initializes DataAvailabilityLayerClient instance.
func (c *DataAvailabilityLayerClient) Init(config []byte, kvStore store.KVStore, logger log.Logger) error {
c.logger = logger
if len(config) > 0 {
return json.Unmarshal(config, &c.config)
}
return nil
}
// Start prepares DataAvailabilityLayerClient to work.
func (c *DataAvailabilityLayerClient) Start() error {
c.logger.Info("starting Celestia Data Availability Layer Client", "baseURL", c.config.BaseURL)
var err error
//TODO: add * time.Second for the timeout
c.client, err = cnc.NewClient(c.config.BaseURL, cnc.WithTimeout(c.config.Timeout))
return err
}
// Stop stops DataAvailabilityLayerClient.
func (c *DataAvailabilityLayerClient) Stop() error {
c.logger.Info("stopping Celestia Data Availability Layer Client")
return nil
}
// GetClientType returns client type.
func (c *DataAvailabilityLayerClient) GetClientType() da.Client {
return da.Celestia
}
// SubmitBatch submits a block to DA layer.
func (c *DataAvailabilityLayerClient) SubmitBatch(batch *types.Batch) da.ResultSubmitBatch {
blob, err := batch.MarshalBinary()
if err != nil {
return da.ResultSubmitBatch{
BaseResult: da.BaseResult{
Code: da.StatusError,
Message: err.Error(),
},
}
}
c.logger.Debug("Submitting to da blob with size", "size", len(blob))
txResponse, err := c.client.SubmitPFD(context.TODO(), c.config.NamespaceID, blob, c.config.Fee, c.config.GasLimit)
c.logger.Debug("DA submit batch response", "txResponse", txResponse, "error", err)
if err != nil {
return da.ResultSubmitBatch{
BaseResult: da.BaseResult{
Code: da.StatusError,
Message: err.Error(),
},
}
}
if txResponse.Code != 0 {
return da.ResultSubmitBatch{
BaseResult: da.BaseResult{
Code: da.StatusError,
Message: fmt.Sprintf("Codespace: '%s', Code: %d, Message: %s", txResponse.Codespace, txResponse.Code, txResponse.RawLog),
},
}
}
return da.ResultSubmitBatch{
BaseResult: da.BaseResult{
Code: da.StatusSuccess,
Message: "tx hash: " + txResponse.TxHash,
DAHeight: uint64(txResponse.Height),
},
}
}
// CheckBatchAvailability queries DA layer to check data availability of block at given height.
func (c *DataAvailabilityLayerClient) CheckBatchAvailability(dataLayerHeight uint64) da.ResultCheckBatch {
shares, err := c.client.NamespacedShares(context.TODO(), c.config.NamespaceID, dataLayerHeight)
if err != nil {
return da.ResultCheckBatch{
BaseResult: da.BaseResult{
Code: da.StatusError,
Message: err.Error(),
},
}
}
return da.ResultCheckBatch{
BaseResult: da.BaseResult{
Code: da.StatusSuccess,
DAHeight: dataLayerHeight,
},
DataAvailable: len(shares) > 0,
}
}
// RetrieveBatches gets a batch of blocks from DA layer.
func (c *DataAvailabilityLayerClient) RetrieveBatches(dataLayerHeight uint64) da.ResultRetrieveBatch {
data, err := c.client.NamespacedData(context.TODO(), c.config.NamespaceID, dataLayerHeight)
if err != nil {
return da.ResultRetrieveBatch{
BaseResult: da.BaseResult{
Code: da.StatusError,
Message: err.Error(),
},
}
}
batches := make([]*types.Batch, len(data))
for i, msg := range data {
var batch pb.Batch
err = proto.Unmarshal(msg, &batch)
if err != nil {
c.logger.Error("failed to unmarshal batch", "daHeight", dataLayerHeight, "position", i, "error", err)
continue
}
batches[i] = new(types.Batch)
err := batches[i].FromProto(&batch)
if err != nil {
return da.ResultRetrieveBatch{
BaseResult: da.BaseResult{
Code: da.StatusError,
Message: err.Error(),
},
}
}
}
return da.ResultRetrieveBatch{
BaseResult: da.BaseResult{
Code: da.StatusSuccess,
DAHeight: dataLayerHeight,
},
Batches: batches,
}
}