@to-da-moon/thai-baht-lib/dist/bahtText.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const ONE = 'หนึ่ง';
const TWO = 'สอง';
const THREE_TO_NINE = ['สาม', 'สี่', 'ห้า', 'หก', 'เจ็ด', 'แปด', 'เก้า'];
const ED = 'เอ็ด';
const YEE = 'ยี่';
const LAN = 'ล้าน';
const EMPTY = '';
const DIGIT = [EMPTY, 'สิบ', 'ร้อย', 'พัน', 'หมื่น', 'แสน'];
const ONES = [EMPTY, ED, TWO, ...THREE_TO_NINE];
const TENS = [EMPTY, ...[EMPTY, YEE, ...THREE_TO_NINE].map(t => t + DIGIT[1])];
const SUB_HUNDRED = TENS.flatMap(t => ONES.map(o => t + o));
SUB_HUNDRED[1] = ONE;
const SUB_TEN = [EMPTY, ONE, TWO, ...THREE_TO_NINE];
function numberToWords(num) {
    let output = EMPTY;
    const length = num.length;
    for (let i = 0; i < length; i++) {
        const d = num[i];
        const di = length - i - 1;
        const diMod = di % 6;
        const isSib = diMod === 1;
        switch (d) {
            case '0':
                break;
            case '1':
                if (isSib) {
                    output += DIGIT[diMod];
                }
                else if (!diMod && i) {
                    output += ED;
                }
                else {
                    output += SUB_TEN[Number(d)] + DIGIT[diMod];
                }
                break;
            default:
                if (isSib && d === '2') {
                    output += YEE + DIGIT[diMod];
                }
                else {
                    output += SUB_TEN[Number(d)] + DIGIT[diMod];
                }
                break;
        }
        if (!diMod && di) {
            output += LAN;
        }
    }
    return output;
}
function bahtText(userInput) {
    let baht;
    let bahtStr;
    let satang;
    let isNegative = false;
    let input;
    if (typeof userInput === 'number') {
        if (userInput > Number.MAX_SAFE_INTEGER)
            return false;
        input = userInput;
    }
    else {
        input = Number(userInput);
        if (isNaN(input) || input > Number.MAX_SAFE_INTEGER) {
            return false;
        }
    }
    if (input < 0) {
        isNegative = true;
        input = -input;
    }
    satang = Number.isInteger(input) ? 0 : (Math.round(input % 1 * 100));
    baht = Number.isInteger(input) ? input : Math.floor(input);
    if (satang >= 100) {
        baht++;
        satang %= 100;
    }
    bahtStr = '' + baht;
    if (!baht && !satang) {
        return 'ศูนย์บาทถ้วน';
    }
    let output = isNegative ? 'ลบ' : EMPTY;
    // Baht
    output += numberToWords(bahtStr);
    // Satang
    if (satang) {
        if (baht)
            output += 'บาท';
        // Faster!
        output += SUB_HUNDRED[satang] + 'สตางค์';
        // output += SUB_HUNDRED_FUNC(satang) + 'สตางค์'
        // output += numberToWords(satang.toString()) + 'สตางค์';
    }
    else {
        output += 'บาทถ้วน';
    }
    return output;
}
exports.default = bahtText;