@openocean.finance/widget-sdk/src/_esm/core/EVM/utils.js

OpenOcean Any-to-Any Cross-Chain-Swap SDK

import { getBlock } from 'viem/actions';
import { config } from '../../config.js';
import { median } from '../../utils/median.js';
export const convertExtendedChain = (chain) => ({
    ...chain,
    ...chain.metamask,
    blockExplorers: chain.metamask.blockExplorerUrls.reduce((blockExplorers, blockExplorer, index) => {
        blockExplorers[index === 0 ? 'default' : `${index}`] = {
            name: blockExplorer,
            url: blockExplorer,
        };
        return blockExplorers;
    }, {}),
    name: chain.metamask.chainName,
    rpcUrls: {
        default: { http: chain.metamask.rpcUrls },
        public: { http: chain.metamask.rpcUrls },
    },
    contracts: {
        ...(chain.multicallAddress
            ? { multicall3: { address: chain.multicallAddress } }
            : undefined),
    },
});
export function isExtendedChain(chain) {
    return (typeof chain === 'object' &&
        chain !== null &&
        'key' in chain &&
        'chainType' in chain &&
        'coin' in chain &&
        'mainnet' in chain &&
        'logoURI' in chain &&
        typeof chain.metamask === 'object' &&
        chain.metamask !== null &&
        typeof chain.nativeToken === 'object' &&
        chain.nativeToken !== null);
}
export const getMaxPriorityFeePerGas = async (client) => {
    const block = await getBlock(client, {
        includeTransactions: true,
    });
    const maxPriorityFeePerGasList = block.transactions
        .filter((tx) => tx.maxPriorityFeePerGas)
        .map((tx) => tx.maxPriorityFeePerGas);
    if (!maxPriorityFeePerGasList.length) {
        return;
    }
    let maxPriorityFeePerGasSum = 0n;
    for (const value of maxPriorityFeePerGasList) {
        maxPriorityFeePerGasSum += value;
    }
    const maxPriorityFeePerGasMedian = median(maxPriorityFeePerGasList) ?? 0n;
    const maxPriorityFeePerGasAvg = maxPriorityFeePerGasSum / BigInt(maxPriorityFeePerGasList.length);
    return maxPriorityFeePerGasMedian > maxPriorityFeePerGasAvg
        ? maxPriorityFeePerGasAvg
        : maxPriorityFeePerGasMedian;
};
// Multicall
export const getMulticallAddress = async (chainId) => {
    const chains = await config.getChains();
    return chains.find((chain) => chain.id === chainId)
        ?.multicallAddress;
};
// Modified viem retryDelay exponential backoff function.
export const retryDelay = ({ count }) => Math.min(~~(1 << count) * 200, 3000);
export const retryCount = 30;
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