From 329fc21eabf047d030a890110ecd0e90ce6de838 Mon Sep 17 00:00:00 2001
From: Agnish Ghosh <iamagnix@gmail.com>
Date: Mon, 29 Jul 2024 19:00:43 +0530
Subject: [PATCH] add: condition for being able to selfReconstruct

---
 beacon_chain/spec/eip7594_helpers.nim | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/beacon_chain/spec/eip7594_helpers.nim b/beacon_chain/spec/eip7594_helpers.nim
index 38b6e5e63..20c94431c 100644
--- a/beacon_chain/spec/eip7594_helpers.nim
+++ b/beacon_chain/spec/eip7594_helpers.nim
@@ -338,3 +338,14 @@ func verify_data_column_sidecar_inclusion_proof*(sidecar: DataColumnSidecar): Re
     return err("DataColumnSidecar: inclusion proof not valid")
 
   ok()
+
+proc selfReconstructDataColumns*(numCol: uint64):
+                                 bool =
+  # This function tells whether data columns can be 
+  # reconstructed or not
+  const totalColumns = NUMBER_OF_COLUMNS.uint64
+  let 
+    columnsNeeded = totalColumns div 2 + totalColumns mod 2
+  if numCol >= columnsNeeded:
+    return true
+  false