From 56e9b572b6a3070a3f871617c4bcc36abd2a3cdd Mon Sep 17 00:00:00 2001
From: mmaurello <93129175+mmaurello@users.noreply.github.com>
Date: Tue, 22 Oct 2024 13:06:55 +0200
Subject: [PATCH] Enable DOT transfers between Polkadot Asset Hub and Moonbeam
 (#376)

---
 .changeset/dirty-pillows-breathe.md           |  5 +++++
 packages/config/src/configs/moonbeam.ts       | 20 +++++++++++++++++--
 .../config/src/configs/polkadotAssetHub.ts    | 18 +++++++++++++++++
 3 files changed, 41 insertions(+), 2 deletions(-)
 create mode 100644 .changeset/dirty-pillows-breathe.md

diff --git a/.changeset/dirty-pillows-breathe.md b/.changeset/dirty-pillows-breathe.md
new file mode 100644
index 00000000..0ba2c217
--- /dev/null
+++ b/.changeset/dirty-pillows-breathe.md
@@ -0,0 +1,5 @@
+---
+'@moonbeam-network/xcm-config': patch
+---
+
+Enable DOT transfers between Polkadot Asset Hub and Moonbeam
diff --git a/packages/config/src/configs/moonbeam.ts b/packages/config/src/configs/moonbeam.ts
index f049fba3..bb24a3d6 100644
--- a/packages/config/src/configs/moonbeam.ts
+++ b/packages/config/src/configs/moonbeam.ts
@@ -247,7 +247,22 @@ export const moonbeamConfig = new ChainConfig({
       contract: ContractBuilder().Xtokens().transfer(),
       destination: polkadot,
       destinationFee: {
-        amount: 0.052,
+        amount: 0.01,
+        asset: dot,
+        balance: BalanceBuilder().substrate().assets().account(),
+      },
+      fee: {
+        asset: glmr,
+        balance: BalanceBuilder().substrate().system().account(),
+      },
+    }),
+    new AssetConfig({
+      asset: dot,
+      balance: BalanceBuilder().substrate().assets().account(),
+      contract: ContractBuilder().Xtokens().transfer(),
+      destination: polkadotAssetHub,
+      destinationFee: {
+        amount: 0.01,
         asset: dot,
         balance: BalanceBuilder().substrate().assets().account(),
       },
@@ -445,7 +460,8 @@ export const moonbeamConfig = new ChainConfig({
         amount: 0.2,
         asset: usdt,
         balance: BalanceBuilder().substrate().assets().account(),
-        destinationBalance: BalanceBuilder().substrate().system().account(),
+        // TODO uncomment when we apply dot as payment asset
+        // destinationBalance: BalanceBuilder().substrate().system().account(),
       },
       fee: {
         asset: glmr,
diff --git a/packages/config/src/configs/polkadotAssetHub.ts b/packages/config/src/configs/polkadotAssetHub.ts
index 17f281ba..2d47b8c1 100644
--- a/packages/config/src/configs/polkadotAssetHub.ts
+++ b/packages/config/src/configs/polkadotAssetHub.ts
@@ -13,6 +13,24 @@ const xcmDeliveryFeeAmount = 0.036;
 
 export const polkadotAssetHubConfig = new ChainConfig({
   assets: [
+    new AssetConfig({
+      asset: dot,
+      balance: BalanceBuilder().substrate().system().account(),
+      destination: moonbeam,
+      destinationFee: {
+        amount: FeeBuilder().xcmPaymentApi().xcmPaymentFee({
+          isAssetReserveChain: false,
+        }),
+        asset: dot,
+        balance: BalanceBuilder().substrate().system().account(),
+      },
+      extrinsic: ExtrinsicBuilder().polkadotXcm().trasferAssets().here(),
+      fee: {
+        asset: dot,
+        balance: BalanceBuilder().substrate().system().account(),
+        xcmDeliveryFeeAmount,
+      },
+    }),
     new AssetConfig({
       asset: usdt,
       balance: BalanceBuilder().substrate().assets().account(),