@numerals/roman/dist/src/index.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.convert = void 0;
const numerals_1 = require("./numerals");
function convert(source) {
    if (!Number.isFinite(source)) {
        throw new Error('Source is not a finite number');
    }
    if (source < 0) {
        throw new Error('Source is negative, only positive numbers are supported');
    }
    if (source == 0) {
        throw new Error('Source is zero, only positive numbers are supported');
    }
    if (source % 1 !== 0) {
        throw new Error('Source is not an integer, only integers are supported');
    }
    if (source > 1000000) {
        throw new Error('Source is too big, only numbers up to 1,000,000 are supported');
    }
    let result = '';
    let reminder = source;
    const anchorArr = [
        100000, 90000, 50000, 40000, 10000, 9000, 5000, 4000,
        1000, 900, 500, 400, 100, 90, 50, 40,
        10, 5, 1,
    ];
    const matchArr = [
        12, 11, 9, 8, 7, 6, 4, 3, 2,
    ];
    for (const n of anchorArr) {
        const match = matchArr.find((it) => it === reminder);
        if (match !== undefined) {
            result += numerals_1.Ro[match];
            break;
        }
        while (reminder >= n) {
            result += numerals_1.Ro[n];
            reminder -= n;
        }
    }
    return result;
}
exports.convert = convert;