Minecraft_color_converter.js

/**
    Searches for all strings that contains a color code, eg "§cTest" and replaces §c with 
    ChatColor.RED so the string looks like ChatColor.RED + "Test".
*/

const fs = require('fs');
const glob = require('glob');
const regex = /"[^"\\]*(?:\\.[^"\\]*)*"/gim;
const imp = 'import me.deftware.client.framework.utils.ChatColor;';

function processFile(file) {
    console.log(`Processing file ${file}`);
    fs.readFile(file, 'utf8', (err, data) => {
        let transformedFile = data.toString(), matchArr = transformedFile.match(regex);
        if (!matchArr) { return; }
        matchArr.forEach((match) => {
            let array = match.split(""), transformed = "", flag = false;
            for (let charIndex in array) {
                charIndex = parseInt(charIndex), char = array[charIndex];
                if (char === "§" && array[charIndex + 1] !== " ") {
                    let colorCode = array[charIndex + 1], colorJavaCode = convertCodeToEnum(colorCode);
                    if (transformed === "\"") { transformed = ""; } else if (array[charIndex - 2] !== "§") {
                        transformed += "\" + ";
                    }
                    transformed += colorJavaCode + " + " + (array[charIndex + 2] === "§" ? "" : "\"");
                    flag = true;
                } else {
                    if (flag) { flag = false; continue; } transformed += char;
                }
            }
            transformedFile = transformedFile.replace(match, transformed);
        });
        if (!transformedFile.includes(imp) && transformedFile.includes("ChatColor.")) {
            const package = transformedFile.match(/package ([A-z].*.[A-z]);/i)[0];
            transformedFile = transformedFile.replace(package, package + "\n\n" + imp);
            console.log(`Transformed ${file}`);
        }
        fs.writeFile(file, transformedFile, 'utf8', (err) => {
           if (err) return console.log(err);
        });
    });
}

function convertCodeToEnum(code) {
    switch (code) {
        case "a":
            return "ChatColor.GREEN";
        case "c":
            return "ChatColor.RED";
        case "f":
            return "ChatColor.WHITE";
        case "n":
            return "ChatColor.UNDERLINE";
        case "8":
            return "ChatColor.DARK_GRAY";
        case "4":
            return "ChatColor.DARK_RED";
        case "e":
            return "ChatColor.YELLOW";
        case "6":
            return "ChatColor.GOLD";
        case "d":
            return "ChatColor.LIGHT_PURPLE";
        case "b":
            return "ChatColor.AQUA";
        case "7":
            return "ChatColor.GRAY";
        case "l":
            return "ChatColor.BOLD";
        case "r":
            return "ChatColor.RESET";
        default:
            throw new Error(`Unknown color code: ${code}`);
    }
}

glob('src/main' + '/**/*', (err, res) => res.forEach(file => processFile(file)));