Feature/etherman+synchronizer

etherman/etherman.go

@@ -0,0 +1,61 @@
+package etherman
+
+import (
+	"log"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/hermeznetwork/hermez-core/etherman/smartcontracts/proofofefficiency"
+	"github.com/hermeznetwork/hermez-core/state"
+	"github.com/ethereum/go-ethereum/ethclient"
+)
+type EtherMan struct {
+	EtherClient *ethclient.Client
+	PoE         *proofofefficiency.Proofofefficiency
+}
+
+func NewEtherman(url string, poeAddr common.Address) (*EtherMan, error) {
+	//TODO
+	//Connect to ethereum node
+	ethClient, err := ethclient.Dial(url)
+	if err != nil {
+		log.Printf("error connecting to %s: %+v", url, err)
+		return nil, err
+	}
+	poe, err := proofofefficiency.NewProofofefficiency(poeAddr, ethClient)
+	if err != nil {
+		return nil, err
+	}
+
+	return &EtherMan{EtherClient: ethClient, PoE: poe}, nil
+}
+
+// EthBlockByNumber function retrieves the ethereum block information by ethereum block number
+func (etherMan *EtherMan) EthBlockByNumber(blockNum int64) (types.Block, error) {
+	//TODO
+	return types.Block{}, nil
+}
+
+// GetBatchesByBlock function retrieves the batches information that are included in a specific ethereum block
+func (etherMan *EtherMan) GetBatchesByBlock(blockNum int64) ([]state.Batch, error) {
+	//TODO
+	return []state.Batch{}, nil
+}
+
+// GetBatchesFromBlockTo function retrieves the batches information that are included in all this ethereum blocks
+//from block x to block y
+func (etherMan *EtherMan) GetBatchesFromBlockTo(fromBlock uint, toBlock uint) ([]state.Batch, error) {
+	//TODO
+	return []state.Batch{}, nil
+}
+
+// SendBatch function allows the sequencer send a new batch proposal to the rollup
+func (etherMan *EtherMan) SendBatch(batch state.Batch) (common.Hash, error) {
+	//TODO
+	return common.Hash{}, nil
+}
+
+// ConsolidateBatch function allows the agregator send the proof for a batch and consolidate it
+func (etherMan *EtherMan) ConsolidateBatch(batch state.Batch, proof state.Proof) (common.Hash, error) {
+	//TODO
+	return common.Hash{}, nil
+}