From 2426c0766dfd2073e8fbb792e47ea5ab00c22649 Mon Sep 17 00:00:00 2001
From: brewmaster012 <88689859+brewmaster012@users.noreply.github.com>
Date: Mon, 7 Oct 2024 10:02:07 -0500
Subject: [PATCH] add comment on pda_ata

---
 programs/protocol-contracts-solana/src/lib.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/programs/protocol-contracts-solana/src/lib.rs b/programs/protocol-contracts-solana/src/lib.rs
index 5e38f66..411aaf3 100644
--- a/programs/protocol-contracts-solana/src/lib.rs
+++ b/programs/protocol-contracts-solana/src/lib.rs
@@ -273,6 +273,9 @@ pub mod gateway {
             return err!(Errors::TSSAuthenticationFailed);
         }
 
+        // associated token address (ATA) of the program PDA
+        // the PDA is the "wallet" (owner) of the token account
+        // the token is stored in ATA account owned by the PDA
         let pda_ata = get_associated_token_address(&pda.key(), &ctx.accounts.mint_account.key());
         require!(
             pda_ata == ctx.accounts.pda_ata.to_account_info().key(),