From a39517f801f27b04cb1003e4b790f2a2c848e15f Mon Sep 17 00:00:00 2001
From: Sewmina Dilshan <sewmina7@gmail.com>
Date: Sat, 28 Jun 2025 04:32:02 +0530
Subject: [PATCH] deduct fees native fixed

---
 programs/bets/src/instructions/deduct_fees.rs | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/programs/bets/src/instructions/deduct_fees.rs b/programs/bets/src/instructions/deduct_fees.rs
index d6b8a75..1c1ce35 100644
--- a/programs/bets/src/instructions/deduct_fees.rs
+++ b/programs/bets/src/instructions/deduct_fees.rs
@@ -30,6 +30,10 @@ pub fn deduct(ctx: Context<DeductFees>, winner:Pubkey, userid:String)->Result<()
     msg!("Fee: {}, Referrer fee: {}", fee, referrer_fee);
     msg!("Total to be sent: {}", fee + referrer_fee + referrer_fee);
 
+    // Calculate rent-exempt minimum for referrer accounts
+    let referrer_rent_exempt = Rent::get()?.minimum_balance(0); // 0 bytes for basic account
+    msg!("Referrer rent exempt minimum: {}", referrer_rent_exempt);
+
     // Verify we have enough funds for all transfers
     let total_transfer = fee.checked_add(referrer_fee)
         .and_then(|sum| sum.checked_add(referrer_fee))
@@ -40,6 +44,20 @@ pub fn deduct(ctx: Context<DeductFees>, winner:Pubkey, userid:String)->Result<()
         BettingError::InsufficientFunds
     );
 
+    // Check if referrer accounts have enough SOL for rent
+    let owner_referrer_balance = **ctx.accounts.owner_referrer.lamports.borrow();
+    let joiner_referrer_balance = **ctx.accounts.joiner_referrer.lamports.borrow();
+
+    require!(
+        owner_referrer_balance + referrer_fee >= referrer_rent_exempt,
+        BettingError::InsufficientFunds
+    );
+
+    require!(
+        joiner_referrer_balance + referrer_fee >= referrer_rent_exempt,
+        BettingError::InsufficientFunds
+    );
+
     // Transfer referrer fees
     **bet_vault.to_account_info().try_borrow_mut_lamports()? -= referrer_fee;
     **ctx.accounts.owner_referrer.try_borrow_mut_lamports()? += referrer_fee;