From fa6aca0beb42ebfc01b3e726e432abae35e43b65 Mon Sep 17 00:00:00 2001
From: dylan <dylan@init4.technology>
Date: Tue, 27 May 2025 17:58:54 -0600
Subject: [PATCH 1/3] add host fills from built block to block header

This PR adds the host fills from the build block to the rollup block
header
---
 src/tasks/submit.rs | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/src/tasks/submit.rs b/src/tasks/submit.rs
index e5e002b..b7a50a7 100644
--- a/src/tasks/submit.rs
+++ b/src/tasks/submit.rs
@@ -192,9 +192,6 @@ impl SubmitTask {
         resp: &SignResponse,
         block: &BuiltBlock,
     ) -> Result<TransactionRequest, eyre::Error> {
-        // TODO: ENG-1082 Implement fills
-        let fills = vec![];
-
         // manually retrieve nonce
         let nonce =
             self.provider().get_transaction_count(self.provider().default_signer_address()).await?;
@@ -222,6 +219,10 @@ impl SubmitTask {
         };
         debug!(?header, "built block header");
 
+        // Extract fills from the built block
+        let fills = self.extract_fills(block);
+        debug!(?fills, "extracted fills");
+        
         // Create a blob transaction with the blob header and signature values and return it
         let tx = self
             .build_blob_tx(fills, header, v, r, s, block)?
@@ -394,6 +395,15 @@ impl SubmitTask {
         Ok(block_num + 1)
     }
 
+    // This function converts &[SignedFill] --> [FillPermit2]
+    fn extract_fills(&self, block: &BuiltBlock) -> Vec<FillPermit2> {
+        let mut fills = vec![];
+        for signed_fill in block.host_fills() {
+            fills.push(FillPermit2::from(signed_fill))
+        }
+        fills
+    }
+
     /// Task future for the submit task
     /// NB: This task assumes that the simulator will only send it blocks for
     /// slots that it's assigned.

From cd249b51d6dc7cf02c9ec55a715b77dbdcb95595 Mon Sep 17 00:00:00 2001
From: dylan <dylan@init4.technology>
Date: Tue, 3 Jun 2025 20:23:22 -0600
Subject: [PATCH 2/3] turn into one liner

---
 src/tasks/submit.rs | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/src/tasks/submit.rs b/src/tasks/submit.rs
index b7a50a7..585d9cc 100644
--- a/src/tasks/submit.rs
+++ b/src/tasks/submit.rs
@@ -395,13 +395,9 @@ impl SubmitTask {
         Ok(block_num + 1)
     }
 
-    // This function converts &[SignedFill] --> [FillPermit2]
+    // This function converts &[SignedFill] into [FillPermit2]
     fn extract_fills(&self, block: &BuiltBlock) -> Vec<FillPermit2> {
-        let mut fills = vec![];
-        for signed_fill in block.host_fills() {
-            fills.push(FillPermit2::from(signed_fill))
-        }
-        fills
+        block.host_fills().iter().map(FillPermit2::from).collect()
     }
 
     /// Task future for the submit task

From a873d45b77174d55236ad7f12188b5f792167f73 Mon Sep 17 00:00:00 2001
From: dylan <dylan@init4.technology>
Date: Tue, 3 Jun 2025 20:24:08 -0600
Subject: [PATCH 3/3] fmt + clippy

---
 src/tasks/submit.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/tasks/submit.rs b/src/tasks/submit.rs
index 585d9cc..6065a7d 100644
--- a/src/tasks/submit.rs
+++ b/src/tasks/submit.rs
@@ -222,7 +222,7 @@ impl SubmitTask {
         // Extract fills from the built block
         let fills = self.extract_fills(block);
         debug!(?fills, "extracted fills");
-        
+
         // Create a blob transaction with the blob header and signature values and return it
         let tx = self
             .build_blob_tx(fills, header, v, r, s, block)?