@ledgerhq/coin-filecoin/lib-es/bridge/serializer.js

Ledger Filecoin Coin integration

import { getAddress, getSubAccount } from "../common-logic/index";
import { validateAddress } from "../network";
import { Message } from "iso-filecoin/message";
import { encodeTxnParams } from "../erc20/tokenAccounts";
import BigNumber from "bignumber.js";
import { AccountType } from "./utils";
export const toCBOR = async (account, tx) => {
    const { address: from } = getAddress(account);
    const { method, version, nonce, gasLimit, gasPremium, gasFeeCap, amount, recipient } = tx;
    const recipientValidation = validateAddress(recipient);
    const fromValidation = validateAddress(from);
    const subAccount = getSubAccount(account, tx);
    const tokenTransfer = subAccount && subAccount.type === AccountType.TokenAccount;
    const params = tokenTransfer ? encodeTxnParams(tx.params ?? "") : undefined;
    if (!recipientValidation.isValid || !fromValidation.isValid)
        throw new Error("recipient and/or from address are not valid");
    let finalRecipient;
    if (tokenTransfer) {
        const validated = validateAddress(subAccount.token.contractAddress);
        if (!validated.isValid)
            throw new Error("token contract address is not valid");
        finalRecipient = validated.parsedAddress.toString();
    }
    else {
        finalRecipient = recipientValidation.parsedAddress.toString();
    }
    const finalAmount = tokenTransfer ? "0" : amount.toString();
    const message = new Message({
        to: finalRecipient,
        from: fromValidation.parsedAddress.toString(),
        gasFeeCap: gasFeeCap.toString(),
        gasLimit: gasLimit.toNumber(),
        gasPremium: gasPremium.toString(),
        method,
        nonce,
        params,
        version: version === 0 ? 0 : undefined,
        value: finalAmount,
    });
    return {
        txPayload: message.serialize(),
        recipientToBroadcast: finalRecipient,
        parsedSender: fromValidation.parsedAddress.toString(),
        encodedParams: params ?? "",
        amountToBroadcast: new BigNumber(finalAmount),
    };
};
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