@daimo/pay/build/src/utils/validateInput.js

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/**
 * Returns true if the value is a valid number.
 * @param value The value to validate.
 * @param maxDecimals The maximum number of decimal places.
 * @returns True if the value is a valid number, false otherwise.
 */
function isValidNumber(value, maxDecimals) {
    if (value.length === 0) {
        return false;
    }
    // Test that the value is digits, followed by an optional decimal, followed
    // by more digits
    const match = /^\d*\.?(\d*)$/.exec(value);
    if (match == null)
        return false;
    // Check that the number of digits after the decimal is less than or equal to
    // maxDecimals
    return maxDecimals == null || match[1].length <= maxDecimals;
}
/**
 * Sanitize a number input.
 * - Remove all non-numeric and non-decimal characters
 * - If the value is empty, return "0"
 * - Parse into a number
 * @param value The value to sanitize.
 * @returns The sanitized value.
 */
function sanitizeNumber(value) {
    const cleaned = value.replace(/[^0-9.]/g, "");
    if (!cleaned || cleaned === "." || !/^\d*\.?\d*$/.test(cleaned))
        return "0";
    return cleaned.startsWith(".") ? `0${cleaned}` : cleaned;
}

export { isValidNumber, sanitizeNumber };
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