@ledgerhq/coin-casper/lib-es/bridge/getTransactionStatus.js

Ledger Casper integration

import BigNumber from "bignumber.js";
import { AmountRequired, InvalidAddress, InvalidAddressBecauseDestinationIsAlsoSource, NotEnoughBalance, RecipientRequired, } from "@ledgerhq/errors";
import { getAddress, isAddressValid } from "./bridgeHelpers/addresses";
import { isTransferIdValid } from "./bridgeHelpers/transferId";
import { CasperInvalidTransferId } from "../errors";
import { CASPER_MINIMUM_VALID_AMOUNT_MOTES, CASPER_MAX_TRANSFER_ID, MayBlockAccountError, InvalidMinimumAmountError, } from "../consts";
export const getTransactionStatus = async (account, transaction) => {
    const errors = {};
    const warnings = {};
    const { balance, spendableBalance } = account;
    const { address } = getAddress(account);
    const { recipient, useAllAmount } = transaction;
    let { amount } = transaction;
    if (!recipient) {
        errors.recipient = new RecipientRequired();
    }
    else if (!isAddressValid(recipient)) {
        errors.recipient = new InvalidAddress("", {
            currencyName: account.currency.name,
        });
    }
    else if (recipient.toLowerCase() === address.toLowerCase()) {
        errors.recipient = new InvalidAddressBecauseDestinationIsAlsoSource();
    }
    if (!isAddressValid(address)) {
        errors.sender = new InvalidAddress("", {
            currencyName: account.currency.name,
        });
    }
    else if (!isTransferIdValid(transaction.transferId)) {
        errors.sender = new CasperInvalidTransferId("", {
            maxTransferId: CASPER_MAX_TRANSFER_ID,
        });
    }
    const estimatedFees = transaction.fees;
    let totalSpent = new BigNumber(0);
    if (useAllAmount) {
        totalSpent = account.spendableBalance;
        amount = totalSpent.minus(estimatedFees);
        if (amount.lte(0) || totalSpent.gt(balance)) {
            errors.amount = new NotEnoughBalance();
        }
    }
    if (!useAllAmount) {
        totalSpent = amount.plus(estimatedFees);
        if (amount.eq(0)) {
            errors.amount = new AmountRequired();
        }
        if (totalSpent.gt(account.spendableBalance)) {
            errors.amount = new NotEnoughBalance();
        }
    }
    if (amount.lt(CASPER_MINIMUM_VALID_AMOUNT_MOTES) && !errors.amount) {
        errors.amount = InvalidMinimumAmountError;
    }
    if (spendableBalance.minus(totalSpent).minus(estimatedFees).lt(CASPER_MINIMUM_VALID_AMOUNT_MOTES)) {
        warnings.amount = MayBlockAccountError;
    }
    // log("debug", "[getTransactionStatus] finish fn");
    return {
        errors,
        warnings,
        estimatedFees,
        amount,
        totalSpent,
    };
};
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