Refactor relayer package (#104)

relayer.go

@@ -15,6 +15,7 @@ import (
 	"github.com/0xsequence/ethkit/go-ethereum/core/types"
 	"github.com/0xsequence/go-sequence/contracts"
 	"github.com/0xsequence/go-sequence/core"
+	"github.com/0xsequence/go-sequence/relayer/proto"
 )
 
 type RelayerSimulateResult struct {
@@ -47,6 +48,9 @@ type Relayer interface {
 	// ..
 	Wait(ctx context.Context, metaTxnID MetaTxnID, optTimeout ...time.Duration) (MetaTxnStatus, *types.Receipt, error)
 
+	// ..
+	Client() proto.Relayer
+
 	// TODO, in future when needed..
 	// GasRefundOptions()
 }

relayer/local_relayer.go

@@ -16,6 +16,7 @@ import (
 	"github.com/0xsequence/go-sequence"
 	"github.com/0xsequence/go-sequence/contracts"
 	"github.com/0xsequence/go-sequence/core"
+	"github.com/0xsequence/go-sequence/relayer/proto"
 )
 
 // LocalRelayer is a simple implementation of a relayer which will dispatch
@@ -238,3 +239,8 @@ func (r *LocalRelayer) IsDeployTransaction(signedTxs *sequence.SignedTransaction
 	}
 	return false
 }
+
+func (r *LocalRelayer) Client() proto.Relayer {
+	// no relayer used
+	return nil
+}

relayer/relayer.go

@@ -1 +1,74 @@
 package relayer
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/0xsequence/go-sequence"
+	"github.com/0xsequence/go-sequence/relayer/proto"
+)
+
+type Options struct {
+	HTTPClient   proto.HTTPClient
+	JWTAuthToken string
+}
+
+func NewRelayerClient(relayerServiceURL string, projectAccessKey string, options ...Options) proto.Relayer {
+	opts := Options{}
+	if len(options) > 0 {
+		opts = options[0]
+	}
+
+	client := &httpclient{
+		client:           opts.HTTPClient,
+		projectAccessKey: projectAccessKey,
+	}
+	if opts.HTTPClient == nil {
+		client.client = http.DefaultClient
+	}
+	if opts.JWTAuthToken != "" {
+		client.jwtAuthHeader = fmt.Sprintf("BEARER %s", opts.JWTAuthToken)
+	}
+
+	return proto.NewRelayerClient(relayerServiceURL, client)
+}
+
+type httpclient struct {
+	client           proto.HTTPClient
+	jwtAuthHeader    string
+	projectAccessKey string
+}
+
+func (c *httpclient) Do(req *http.Request) (*http.Response, error) {
+	if c.projectAccessKey != "" {
+		req.Header.Set("X-Access-Key", c.projectAccessKey)
+	}
+	if c.jwtAuthHeader != "" {
+		req.Header.Set("Authorization", c.jwtAuthHeader)
+	}
+	return c.client.Do(req)
+}
+
+func MetaTxnStatusFromString(s string) sequence.MetaTxnStatus {
+	var ethTxnStatus proto.ETHTxnStatus
+	ethTxnStatus.UnmarshalJSON([]byte(s))
+
+	switch ethTxnStatus {
+	case proto.ETHTxnStatus_UNKNOWN:
+		return sequence.MetaTxnStatusUnknown
+	case proto.ETHTxnStatus_DROPPED:
+		return sequence.MetaTxnStatusUnknown
+	case proto.ETHTxnStatus_QUEUED:
+		return sequence.MetaTxnStatusUnknown
+	case proto.ETHTxnStatus_SENT:
+		return sequence.MetaTxnStatusUnknown
+	case proto.ETHTxnStatus_SUCCEEDED:
+		return sequence.MetaTxnExecuted
+	case proto.ETHTxnStatus_PARTIALLY_FAILED:
+		return sequence.MetaTxnFailed
+	case proto.ETHTxnStatus_FAILED:
+		return sequence.MetaTxnFailed
+	default:
+		return sequence.MetaTxnStatusUnknown
+	}
+}

relayer/rpc_relayer.go

@@ -256,7 +256,7 @@ func (r *RpcRelayer) waitMetaTxnReceipt(ctx context.Context, metaTxnID sequence.
 		if err != nil {
 			return 0, nil, fmt.Errorf("failed to decode txn receipt data: %w", err)
 		}
-		return proto.MetaTxnStatusFromString(metaTxnReceipt.Status), receipt, nil
+		return MetaTxnStatusFromString(metaTxnReceipt.Status), receipt, nil
 	}
 }
 
@@ -269,6 +269,10 @@ func (r *RpcRelayer) IsDeployTransaction(signedTxs *sequence.SignedTransactions)
 	return false
 }
 
+func (r *RpcRelayer) Client() proto.Relayer {
+	return r.Service
+}
+
 func (r *RpcRelayer) protoConfig(ctx context.Context, config core.WalletConfig, walletAddress common.Address) (*proto.WalletConfig, error) {
 	if walletConfigV1, ok := config.(*v1.WalletConfig); ok {
 		var signers []*proto.WalletSigner