web3agent-aof/dist/mira/addLiquidity.js

AI Framework for Onchain Operations and DeFi Interactions

import { bn } from 'fuels';
import { getAllVerifiedFuelAssets } from '../utils/assets.js';
import { buildPoolId, MiraAmm, ReadonlyMiraAmm } from 'mira-dex-ts';
import { setupWallet } from '../utils/setup.js';
async function futureDeadline(provider) {
    const block = await provider.getBlock('latest');
    return block?.height.add(1000) ?? 1000000000;
}
export const addLiquidity = async ({ amount0, asset0Symbol, asset1Symbol, slippage = 0.01, // Default slippage of 1%
 }) => {
    const assets = await getAllVerifiedFuelAssets();
    const asset0 = assets.find((asset) => asset.symbol === asset0Symbol);
    const asset1 = assets.find((asset) => asset.symbol === asset1Symbol);
    if (!asset0 || !asset1) {
        throw new Error(`Asset ${asset0Symbol} or ${asset1Symbol} not found`);
    }
    let isStable = asset0.symbol.includes('USD') && asset1.symbol.includes('USD');
    const asset0Id = asset0.assetId;
    const asset1Id = asset1.assetId;
    if (!asset0Id || !asset1Id) {
        throw new Error('Invalid asset IDs');
    }
    const asset0Decimals = asset0.decimals;
    const asset1Decimals = asset1.decimals;
    if (typeof asset0Decimals !== 'number' ||
        typeof asset1Decimals !== 'number') {
        throw new Error('Invalid asset decimals');
    }
    const { provider, wallet } = await setupWallet();
    const amount0InWei = bn.parseUnits(amount0, asset0Decimals);
    const poolId = buildPoolId(asset0Id, asset1Id, isStable);
    const miraAmm = new MiraAmm(wallet);
    const miraAmmReader = new ReadonlyMiraAmm(provider);
    const deadline = await futureDeadline(provider);
    // Calculate the required amount1 based on amount0
    const result = await miraAmmReader.getAmountsOut({ bits: asset0Id }, amount0InWei, [poolId]);
    if (!result || result.length === 0 || !result[0] || result[0].length < 2) {
        throw new Error('Failed to calculate amount1');
    }
    let amount1InWei;
    if (result[1] && result[1][0].bits === asset1Id) {
        amount1InWei = result[1][1];
    }
    else if (result[0][0].bits === asset1Id) {
        amount1InWei = result[0][1];
    }
    if (!amount1InWei) {
        throw new Error('Failed to calculate amount1');
    }
    console.log('Amount0 (Wei):', amount0InWei.toString());
    console.log('Estimated Amount1 (Wei):', amount1InWei.toString());
    // Calculate minimum amounts with slippage
    const minAmount0 = amount0InWei
        .mul(bn(100 - Math.floor(slippage * 100)))
        .div(bn(100));
    const minAmount1 = amount1InWei
        .mul(bn(100 - Math.floor(slippage * 100)))
        .div(bn(100));
    console.log('Min Amount0 (Wei):', minAmount0.toString());
    console.log('Min Amount1 (Wei):', minAmount1.toString());
    const req = await miraAmm.addLiquidity(poolId, amount0InWei, amount1InWei, minAmount0, minAmount1, deadline, {
        gasLimit: 1000000,
        maxFee: 1000000,
    });
    const tx = await wallet.sendTransaction(req);
    const { id, status } = await tx.waitForResult();
    return {
        status,
        id,
    };
};
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