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fix: calculate minimum deposits based on pool ratio for Add Liquidity

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This commit is contained in:
Kurdistan Tech Ministry
2026-02-06 13:39:39 +03:00
parent 7641c24fdd
commit dcb5a2c313
1 changed files with 48 additions and 29 deletions
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web/src/components/AddLiquidityModal.tsx
+48 -29
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@@ -177,24 +177,24 @@ export const AddLiquidityModal: React.FC<AddLiquidityModalProps> = ({
fetchAssetHubBalances();
}, [assetHubApi, isAssetHubReady, selectedAccount, isOpen, asset0, asset1]);
// Fetch minimum deposit requirements from runtime
// Fetch minimum deposit requirements from runtime and pool reserves
useEffect(() => {
if (!assetHubApi || !isAssetHubReady || !isOpen) return;
const fetchMinimumBalances = async () => {
try {
// For native token (-1), use default minimum - can't query assets pallet
let minBalance0 = 0.01;
let minBalance1 = 0.01;
// Default minimums
let minBalance0 = 0.1;
let minBalance1 = 0.1;
// Only query assets pallet for non-native tokens (positive IDs)
// Query asset minBalance for non-native tokens
if (asset0 >= 0) {
const assetDetails0 = await assetHubApi.query.assets.asset(asset0);
if (assetDetails0.isSome) {
const details0 = assetDetails0.unwrap().toJSON() as AssetDetails;
const minBalance0Raw = details0.minBalance || '0';
const fetchedMin0 = Number(minBalance0Raw) / Math.pow(10, asset0Decimals);
minBalance0 = Math.max(fetchedMin0, 0.01); // Ensure at least 0.01
minBalance0 = Math.max(fetchedMin0, 0.1);
}
}
@@ -204,38 +204,57 @@ export const AddLiquidityModal: React.FC<AddLiquidityModalProps> = ({
const details1 = assetDetails1.unwrap().toJSON() as AssetDetails;
const minBalance1Raw = details1.minBalance || '0';
const fetchedMin1 = Number(minBalance1Raw) / Math.pow(10, asset1Decimals);
minBalance1 = Math.max(fetchedMin1, 0.01); // Ensure at least 0.01
minBalance1 = Math.max(fetchedMin1, 0.1);
}
}
if (import.meta.env.DEV) console.log('📊 Minimum deposit requirements:', {
asset0: asset0Name,
minBalance0,
asset1: asset1Name,
minBalance1
// Get pool reserves to calculate ratio-based minimums
const asset0Location = asset0 === -1
? { parents: 1, interior: 'Here' }
: { parents: 0, interior: { X2: [{ PalletInstance: 50 }, { GeneralIndex: asset0 }] } };
const asset1Location = asset1 === -1
? { parents: 1, interior: 'Here' }
: { parents: 0, interior: { X2: [{ PalletInstance: 50 }, { GeneralIndex: asset1 }] } };
try {
const reserves = await assetHubApi.call.assetConversionApi.getReserves(
asset0Location,
asset1Location
);
if (reserves && !reserves.isNone) {
const [reserve0Raw, reserve1Raw] = reserves.unwrap();
const reserve0 = Number(reserve0Raw.toString()) / Math.pow(10, asset0Decimals);
const reserve1 = Number(reserve1Raw.toString()) / Math.pow(10, asset1Decimals);
if (reserve0 > 0 && reserve1 > 0) {
// Calculate minimums based on pool ratio
// If asset1 min is 0.1 DOT and ratio is 1:3, then asset0 min should be 0.3 HEZ
const ratioBasedMin0 = minBalance1 * (reserve0 / reserve1);
const ratioBasedMin1 = minBalance0 * (reserve1 / reserve0);
minBalance0 = Math.max(minBalance0, ratioBasedMin0);
minBalance1 = Math.max(minBalance1, ratioBasedMin1);
if (import.meta.env.DEV) {
console.log('📊 Pool reserves:', { reserve0, reserve1 });
console.log('📊 Ratio-based minimums:', { ratioBasedMin0, ratioBasedMin1 });
}
}
}
} catch (reserveErr) {
if (import.meta.env.DEV) console.log('Could not fetch reserves, using default minimums');
}
if (import.meta.env.DEV) console.log('📊 Final minimum deposits:', {
asset0: asset0Name, minBalance0,
asset1: asset1Name, minBalance1
});
setMinDeposit0(minBalance0);
setMinDeposit1(minBalance1);
// Also check if there&apos;s a MintMinLiquidity constant in assetConversion pallet
if (assetHubApi.consts.assetConversion) {
const mintMinLiq = assetHubApi.consts.assetConversion.mintMinLiquidity;
if (mintMinLiq) {
if (import.meta.env.DEV) console.log('🔧 AssetConversion MintMinLiquidity constant:', mintMinLiq.toString());
}
const liquidityWithdrawalFee = assetHubApi.consts.assetConversion.liquidityWithdrawalFee;
if (liquidityWithdrawalFee) {
if (import.meta.env.DEV) console.log('🔧 AssetConversion LiquidityWithdrawalFee:', liquidityWithdrawalFee.toHuman());
}
// Log all assetConversion constants
if (import.meta.env.DEV) console.log('🔧 All assetConversion constants:', Object.keys(assetHubApi.consts.assetConversion));
}
} catch (err) {
if (import.meta.env.DEV) console.error('❌ Error fetching minimum balances:', err);
// Keep default 0.01 if query fails
}
};