STINK integration with Moonbeam (#266)

* stink initial configuration

* add function to determine feeAsset position repsecting asset

* add chanset

Author: mmaurello

.changeset/healthy-carrots-teach.md

@@ -0,0 +1,7 @@
+---
+'@moonbeam-network/xcm-builder': patch
+'@moonbeam-network/xcm-config': patch
+'@moonbeam-network/xcm-sdk': patch
+---
+
+STINK integration with Moonbeam

packages/builder/src/extrinsic/pallets/polkadotXcm/polkadotXcm.ts

@@ -1,7 +1,10 @@
 /* eslint-disable sort-keys */
 import { ExtrinsicConfigBuilder } from '../../ExtrinsicBuilder.interfaces';
 import { ExtrinsicConfig } from '../../ExtrinsicConfig';
-import { getPolkadotXcmExtrinsicArgs } from './polkadotXcm.util';
+import {
+  getPolkadotXcmExtrinsicArgs,
+  shouldFeeAssetPrecedeAsset,
+} from './polkadotXcm.util';
 
 const pallet = 'polkadotXcm';
 
@@ -73,7 +76,7 @@ export function polkadotXcm() {
               getArgs: (extrinsicFunction) => {
                 const isAssetDifferent =
                   !!params.feeAsset && params.asset !== params.feeAsset;
-                const asset = [
+                const assets = [
                   {
                     id: {
                       Concrete: {
@@ -96,8 +99,11 @@ export function polkadotXcm() {
                   },
                 ];
 
+                const shouldFeeAssetPrecede =
+                  shouldFeeAssetPrecedeAsset(params);
+
                 if (isAssetDifferent) {
-                  asset.push({
+                  const feeAsset = {
                     id: {
                       Concrete: {
                         parents: 0,
@@ -116,14 +122,20 @@ export function polkadotXcm() {
                     fun: {
                       Fungible: params.fee,
                     },
-                  });
+                  };
+
+                  if (shouldFeeAssetPrecede) {
+                    assets.unshift(feeAsset);
+                  } else {
+                    assets.push(feeAsset);
+                  }
                 }
 
                 return getPolkadotXcmExtrinsicArgs({
                   ...params,
                   func: extrinsicFunction,
-                  asset,
-                  feeIndex: isAssetDifferent ? 1 : 0,
+                  asset: assets,
+                  feeIndex: isAssetDifferent && !shouldFeeAssetPrecede ? 1 : 0,
                 });
               },
             }),

packages/builder/src/extrinsic/pallets/polkadotXcm/polkadotXcm.util.ts

@@ -55,3 +55,17 @@ export function getPolkadotXcmExtrinsicArgs({
     'Unlimited',
   ];
 }
+
+export function shouldFeeAssetPrecedeAsset({
+  asset,
+  feeAsset,
+}: ExtrinsicConfigBuilderPrams): boolean {
+  const assetIdNumber = Number(asset);
+  const feeAssetIdNumber = Number(feeAsset);
+
+  if (Number.isNaN(assetIdNumber) || Number.isNaN(feeAssetIdNumber)) {
+    return false;
+  }
+
+  return assetIdNumber > feeAssetIdNumber;
+}

packages/config/src/assets.ts

@@ -250,6 +250,11 @@ export const soon = new Asset({
   originSymbol: 'SOON',
 });
 
+export const stink = new Asset({
+  key: 'stink',
+  originSymbol: 'STINK',
+});
+
 export const sub = new Asset({
   key: 'sub',
   originSymbol: 'SUB',
@@ -421,6 +426,7 @@ export const assetsList: Asset[] = [
   rmrk,
   sdn,
   soon,
+  stink,
   sub,
   teer,
   tnkr,

packages/config/src/chains.ts

@@ -55,6 +55,7 @@ import {
   ring,
   rmrk,
   sdn,
+  stink,
   sub,
   teer,
   tnkr,
@@ -1062,6 +1063,10 @@ export const moonbeam = new EvmParachain({
       asset: pink,
       id: '64174511183114006009298114091987195453',
     },
+    {
+      asset: stink,
+      id: '112679793397406599376365943185137098326',
+    },
   ],
   ecosystem: Ecosystem.Polkadot,
   genesisHash:
@@ -1685,6 +1690,11 @@ export const polkadotAssetHub = new Parachain({
       id: 23,
       palletInstance: 50,
     },
+    {
+      asset: stink,
+      id: 42069,
+      palletInstance: 50,
+    },
   ],
   ecosystem: Ecosystem.Polkadot,
   genesisHash:

packages/config/src/configs/moonbeam.ts

@@ -26,6 +26,7 @@ import {
   pha,
   pink,
   ring,
+  stink,
   sub,
   usdc,
   usdcwh,
@@ -519,6 +520,21 @@ export const moonbeamConfig = new ChainConfig({
         balance: BalanceBuilder().substrate().system().account(),
       },
     }),
+    new AssetConfig({
+      asset: stink,
+      balance: BalanceBuilder().substrate().assets().account(),
+      contract: ContractBuilder().Xtokens().transferMultiCurrencies(),
+      destination: polkadotAssetHub,
+      destinationFee: {
+        amount: 0.2,
+        asset: usdt,
+        balance: BalanceBuilder().substrate().assets().account(),
+      },
+      fee: {
+        asset: glmr,
+        balance: BalanceBuilder().substrate().system().account(),
+      },
+    }),
     new AssetConfig({
       asset: hdx,
       balance: BalanceBuilder().substrate().assets().account(),

packages/config/src/configs/polkadotAssetHub.ts

@@ -4,7 +4,7 @@ import {
   ExtrinsicBuilder,
   FeeBuilder,
 } from '@moonbeam-network/xcm-builder';
-import { ded, dot, pink, usdc, usdt } from '../assets';
+import { ded, dot, pink, stink, usdc, usdt } from '../assets';
 import { moonbeam, polkadotAssetHub } from '../chains';
 import { AssetConfig } from '../types/AssetConfig';
 import { ChainConfig } from '../types/ChainConfig';
@@ -93,6 +93,26 @@ export const polkadotAssetHubConfig = new ChainConfig({
       },
       min: AssetMinBuilder().assets().asset(),
     }),
+    new AssetConfig({
+      asset: stink,
+      balance: BalanceBuilder().substrate().assets().account(),
+      destination: moonbeam,
+      destinationFee: {
+        amount: 0.03,
+        asset: usdt,
+        balance: BalanceBuilder().substrate().assets().account(),
+      },
+      extrinsic: ExtrinsicBuilder()
+        .polkadotXcm()
+        .limitedReserveTransferAssets()
+        .X2(),
+      fee: {
+        asset: dot,
+        balance: BalanceBuilder().substrate().system().account(),
+        xcmDeliveryFeeAmount,
+      },
+      min: AssetMinBuilder().assets().asset(),
+    }),
   ],
   chain: polkadotAssetHub,
 });