@ledgerhq/live-common/lib-es/families/kaspa/descriptor/fees.js

Common ground for the Ledger Live apps

import { BigNumber } from "bignumber.js";
export const fees = {
    hasPresets: true,
    hasCustom: true,
    presets: {
        legend: { type: "feeRate", unit: "Sompi/byte", valueFrom: "presetAmount" },
        strategyLabelInAmount: "legend",
        getOptions: transaction => {
            const info = transaction.networkInfo;
            if (!info?.length)
                return [];
            const first = info[0];
            const allSame = first !== undefined &&
                info.every((item) => item.estimatedSeconds === first.estimatedSeconds);
            return info.map((item) => ({
                id: item.label,
                amount: item.amount,
                estimatedMs: item.estimatedSeconds * 1000,
                disabled: (item.label === "slow" || item.label === "medium") && allSame,
            }));
        },
    },
    custom: {
        inputs: [
            {
                key: "feePerByte",
                type: "number",
                unitLabel: "Sompi/byte",
            },
        ],
        getInitialValues: transaction => {
            const tx = transaction;
            if (BigNumber.isBigNumber(tx.customFeeRate) && tx.customFeeRate.gt(0)) {
                return { feePerByte: tx.customFeeRate.toFixed() };
            }
            const medium = tx.networkInfo?.find(item => item.label === "medium")?.amount;
            return { feePerByte: BigNumber.isBigNumber(medium) ? medium.toFixed() : "" };
        },
        buildTransactionPatch: values => {
            const feePerByte = new BigNumber(values.feePerByte);
            return {
                feesStrategy: "custom",
                customFeeRate: feePerByte.isNaN() || feePerByte.isNegative() ? new BigNumber(0) : feePerByte,
            };
        },
    },
};
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