@molecularlabs/nucleus-frontend/dist/display/exchange-rate.mjs

Nucleus BoringVault Frontend SDK

import { getRateInQuoteWithAssetDecimals } from "../api/accountant";
import { bigIntToNumberAsString } from "../utils/bigint";
import { getVaultByKey } from "../vaults";
const getDepositExchangeRate = async ({
  vaultKey,
  sourceChainId,
  depositTokenSymbol,
  minimumFractionDigits,
  maximumFractionDigits = 3
}) => {
  const vault = await getVaultByKey(vaultKey);
  const sourceChain = vault.deposit.sourceChains[sourceChainId];
  if (!sourceChain) {
    throw new Error(
      `Source chain ${sourceChainId} not found for vault ${vaultKey}`
    );
  }
  const depositToken = sourceChain.depositTokens?.[depositTokenSymbol];
  if (!depositToken) {
    throw new Error(
      `Deposit token ${depositTokenSymbol} not found for chain ${sourceChainId}`
    );
  }
  const tokenAddress = depositToken.address;
  if (!tokenAddress) {
    throw new Error(`Token address not found for ${depositTokenSymbol}`);
  }
  const [decimals, rate] = await getRateInQuoteWithAssetDecimals({
    assetAddress: tokenAddress,
    accountantAddress: vault.contracts.accountant,
    chainId: sourceChainId
  });
  if (rate.status === "failure") {
    throw new Error(`Failed to get rate: ${rate.error.message}`);
  }
  if (decimals.status === "failure") {
    throw new Error(`Failed to get decimals: ${decimals.error.message}`);
  }
  return bigIntToNumberAsString(rate.result, {
    decimals: decimals.result,
    minimumFractionDigits,
    maximumFractionDigits
  });
};
const getWithdrawExchangeRate = async ({
  vaultKey,
  sourceChainId,
  destinationChainId,
  wantTokenSymbol,
  minimumFractionDigits,
  maximumFractionDigits = 3
}) => {
  const vault = await getVaultByKey(vaultKey);
  const sourceChain = vault.withdraw.sourceChains[sourceChainId];
  if (!sourceChain) {
    throw new Error(
      `Source chain ${sourceChainId} not found for vault ${vaultKey}`
    );
  }
  const destinationChain = sourceChain.destinationChains[destinationChainId];
  if (!destinationChain) {
    throw new Error(
      `Destination chain ${destinationChainId} not found for source chain ${sourceChainId}`
    );
  }
  const wantToken = destinationChain.wantTokens?.[wantTokenSymbol];
  if (!wantToken) {
    throw new Error(
      `Want token ${wantTokenSymbol} not found for chain ${destinationChainId}`
    );
  }
  const tokenAddress = wantToken.address;
  if (!tokenAddress) {
    throw new Error(`Token address not found for ${wantTokenSymbol}`);
  }
  const [decimals, rate] = await getRateInQuoteWithAssetDecimals({
    assetAddress: tokenAddress,
    accountantAddress: vault.contracts.accountant,
    chainId: sourceChainId
  });
  if (rate.status === "failure") {
    throw new Error(`Failed to get rate: ${rate.error.message}`);
  }
  if (decimals.status === "failure") {
    throw new Error(`Failed to get decimals: ${decimals.error.message}`);
  }
  return bigIntToNumberAsString(rate.result, {
    decimals: decimals.result,
    minimumFractionDigits,
    maximumFractionDigits
  });
};
export {
  getDepositExchangeRate,
  getWithdrawExchangeRate
};
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