Doom 3 MAP text deparser (translation patch applier)

deparser.js

/* 
 * Doom 3 MAP text deparser (translation patch applier)
 *
 * Copyright (c) PROPHESSOR 10.12.2018
 * MIT License
 *
 */

const fs = require('fs');
const EXPORT_DIR = 'export';

function deparse(json, filename) {
    let map = fs.readFileSync(filename, 'utf8');

    for(const string of json) {
        // [0] - filename, [1] - input string, [2] - array { [0] - translation, [1] - translator, [2] - rating, [3] - comment}, [3] - checkers
        string[2].sort((a, b) => (b[2] || 0) - (a[2] || 0));

        const bestTranslation = string[2][0][0];

        map = map.replace(`"${string[1]}"`, `"${bestTranslation}"`);
    }

    fs.writeFileSync(`${EXPORT_DIR}/${filename}`, map.replace(/я/g, '`').replace(/ё/g, 'е').replace(/Ё/g, 'Е'), 'utf8');
}

const filelist = [
    "maps\\ep1\\e1m1.map"
// Put here pathes to .map files
// NOTE: Translated .map.json files must be in same folder
]

function main() {
    for(const filename of filelist) {
        deparse(require(`./${filename}.json`), filename);
        console.log(filename, 'OK');
    }
}

main();