From c6879f5a66e2b5e514addbb65dcb6cb246d9a3f9 Mon Sep 17 00:00:00 2001
From: David <david@taiko.xyz>
Date: Thu, 18 Apr 2024 16:28:34 +0800
Subject: [PATCH] feat: update sender.Send

---
 prover/proof_submitter/transaction/sender.go | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/prover/proof_submitter/transaction/sender.go b/prover/proof_submitter/transaction/sender.go
index d42ad45b5..eac51e58d 100644
--- a/prover/proof_submitter/transaction/sender.go
+++ b/prover/proof_submitter/transaction/sender.go
@@ -2,6 +2,7 @@ package transaction
 
 import (
 	"context"
+	"fmt"
 	"math/big"
 	"strings"
 
@@ -41,6 +42,15 @@ func (s *Sender) Send(
 	proofWithHeader *producer.ProofWithHeader,
 	buildTx TxBuilder,
 ) error {
+	// Check if we still need to generate a new proof for that block.
+	proofStatus, err := rpc.GetBlockProofStatus(ctx, s.rpc, proofWithHeader.BlockID, proofWithHeader.Opts.ProverAddress)
+	if err != nil {
+		return err
+	}
+	if proofStatus.IsSubmitted {
+		return fmt.Errorf("proof for block %d is already submitted", proofWithHeader.BlockID)
+	}
+
 	// Check if this proof is still needed to be submitted.
 	ok, err := s.validateProof(ctx, proofWithHeader)
 	if err != nil || !ok {