KennethanCeyer/formulize

import { supportedCharacters } from './values';
import { StringHelper } from './string.helper';

export class FormulizeTokenHelper {
    public static toDecimal(value: string): string {
        const splitValue = StringHelper.toNumber(value).split('.');
        if (splitValue.length)
            splitValue[0] = splitValue[0].replace(/\B(?=(\d{3})+(?!\d))/g, ',');
        return  splitValue.join('.');
    }

    public static isValid(value: string): boolean {
        return FormulizeTokenHelper.isNumeric(value) || FormulizeTokenHelper.supportValue(value);
    }

    public static isNumeric(value: string): boolean {
        return /[0-9\.]/.test(value);
    }

    public static isBracket(value: string): boolean {
        return /^[()]$/.test(value);
    }

    public static isComma(value: string): boolean {
        return value === ',';
    }

    public static supportValue(value: string): boolean {
        return supportedCharacters.includes(value);
    }
}