From 352e3519a8f8928ae45ebe77bab93e3d878edd14 Mon Sep 17 00:00:00 2001
From: Uncle Stinky <uncle.stinky@ghostchain.io>
Date: Fri, 25 Sep 2026 12:23:38 +0300
Subject: [PATCH] apply exponential scale for bridge out amount

Signed-off-by: Uncle Stinky <uncle.stinky@ghostchain.io>
---
 pallets/exodus/Cargo.toml   |  2 +-
 pallets/exodus/src/lib.rs   | 16 +++++++++-------
 pallets/exodus/src/tests.rs | 17 ++++++++++++++---
 3 files changed, 24 insertions(+), 11 deletions(-)

diff --git a/pallets/exodus/Cargo.toml b/pallets/exodus/Cargo.toml
index 11ce536..49a1ad5 100644
--- a/pallets/exodus/Cargo.toml
+++ b/pallets/exodus/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ghost-exodus"
-version = "0.0.14"
+version = "0.0.15"
 description = "Threshold signature generation with DKG included"
 license.workspace = true
 authors.workspace = true
diff --git a/pallets/exodus/src/lib.rs b/pallets/exodus/src/lib.rs
index 72a0a6f..50a4ebe 100644
--- a/pallets/exodus/src/lib.rs
+++ b/pallets/exodus/src/lib.rs
@@ -1846,14 +1846,16 @@ pub mod pallet {
             let base_evm_amount: BalanceOf<T> = T::BaseEvmAmount::get()
                 .unique_saturated_into();
 
-            let pending_requests_count = ExodusRequests::<T>::count()
-                .unique_saturated_into();
+            let is_amount_sufficient = 1u32.checked_shl(ExodusRequests::<T>::count())
+                .map(|scale| {
+                    T::Currency::minimum_balance()
+                        .saturating_mul(scale.unique_saturated_into())
+                        .saturating_add(base_evm_amount)
+                        .le(&amount)
+                })
+                .unwrap_or(false);
 
-            let minimum_amount = base_evm_amount
-                .saturating_mul(pending_requests_count)
-                .saturating_add(T::Currency::minimum_balance());
-
-            ensure!(amount >= minimum_amount, Error::<T>::BridgeQueueMinimumNotMet);
+            ensure!(is_amount_sufficient, Error::<T>::BridgeQueueMinimumNotMet);
 
             let actual_amount = T::Currency::burn_from(
                 &who,
diff --git a/pallets/exodus/src/tests.rs b/pallets/exodus/src/tests.rs
index 62e0bd1..b54870d 100644
--- a/pallets/exodus/src/tests.rs
+++ b/pallets/exodus/src/tests.rs
@@ -1132,9 +1132,14 @@ fn test_all_validators_can_execute_dkg() {
         ExodusSignedGovernance::<Runtime>::iter().count()
     });
 
+    let pending_exodus_requests = ext.execute_with(|| {
+        ExodusRequests::<Runtime>::count()
+    });
+
     assert_eq!(rotations_count, 3);
     assert_eq!(bridges_count, 2);
     assert_eq!(governances_count, 15);
+    assert_eq!(pending_exodus_requests, 0);
 }
 
 #[test]
@@ -1476,7 +1481,7 @@ fn register_evm_bridge_out_dynamic_threshold_works() {
 
         QualificationDkgState::<Runtime>::insert(&network_curve, dkg_state);
 
-        let amount_1 = existential_deposit;
+        let amount_1 = base_evm_amount.saturating_add(existential_deposit);
         assert_ok!(Exodus::register_evm_bridge_out_exodus(
             RuntimeOrigin::signed(user.clone()),
             network_id,
@@ -1508,7 +1513,10 @@ fn register_evm_bridge_out_dynamic_threshold_works() {
             Error::<Runtime>::BridgeQueueMinimumNotMet
         );
 
-        let amount_2 = existential_deposit.saturating_add(base_evm_amount);
+        let amount_2 = existential_deposit
+            .saturating_mul(2)
+            .saturating_add(base_evm_amount);
+
         assert_ok!(Exodus::register_evm_bridge_out_exodus(
             RuntimeOrigin::signed(user.clone()),
             network_id,
@@ -1530,7 +1538,10 @@ fn register_evm_bridge_out_dynamic_threshold_works() {
 
         assert_eq!(ExodusRequests::<Runtime>::count(), 2);
 
-        let amount_3 = amount_2.saturating_add(base_evm_amount);
+        let amount_3 = existential_deposit
+            .saturating_mul(4)
+            .saturating_add(base_evm_amount);
+
         assert_ok!(Exodus::register_evm_bridge_out_exodus(
             RuntimeOrigin::signed(user.clone()),
             network_id,