@ledgerhq/live-common/lib/flows/send/amount/utils/decimals.js

Common ground for the Ledger Live apps

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.clampDecimals = clampDecimals;
exports.isOverDecimalLimit = isOverDecimalLimit;
exports.trimTrailingZeros = trimTrailingZeros;
function clampDecimals(display) {
    const dotIndex = display.lastIndexOf(".");
    const commaIndex = display.lastIndexOf(",");
    const sepIndex = Math.max(dotIndex, commaIndex);
    if (sepIndex === -1)
        return display;
    const integerPart = display.slice(0, sepIndex);
    const sep = display[sepIndex];
    const decimals = display.slice(sepIndex + 1);
    if (decimals.length <= 2)
        return display;
    return `${integerPart}${sep}${decimals.slice(0, 2)}`;
}
function isOverDecimalLimit(display) {
    const dotIndex = display.lastIndexOf(".");
    const commaIndex = display.lastIndexOf(",");
    const sepIndex = Math.max(dotIndex, commaIndex);
    if (sepIndex === -1)
        return false;
    return display.length - sepIndex - 1 > 2;
}
function trimTrailingZeros(display) {
    const dotIndex = display.lastIndexOf(".");
    const commaIndex = display.lastIndexOf(",");
    const sepIndex = Math.max(dotIndex, commaIndex);
    if (sepIndex === -1)
        return display;
    const integerPart = display.slice(0, sepIndex);
    const sep = display[sepIndex];
    let decimals = display.slice(sepIndex + 1);
    // Remove trailing zeros
    let endIndex = decimals.length;
    while (endIndex > 0 && decimals[endIndex - 1] === "0") {
        endIndex--;
    }
    decimals = decimals.slice(0, endIndex);
    if (!decimals)
        return integerPart;
    return `${integerPart}${sep}${decimals}`;
}
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