cpd_client/client.js

/!\ Pour utiliser ce module il faut aussi utiliser le [CPD_SERVER](https://www.npmjs.com/package/cpd_server)

const fetch = require("node-fetch")
const fs = require('fs')
const downloader = require('./downloader')
const t = module.exports
var headers = new fetch.Headers()
var launcher_name = "IA Launcher"
var launcher_url = "http://infinity-alex.fun:8080/modpack/1.8.9"
var launcher_version = "IA Launcher"
var arrayFiles = {
    file: []
}

t.events = downloader.events

t.setLauncher = function setLauncher(name, url, version) {
    launcher_name = name;
    launcher_url = url;
    launcher_version = version;
};

t.getLauncher = function getLauncher() {
    return {
        name: launcher_name,
        url: launcher_url,
        version: launcher_version
    };
};

t.start = function start(redownload, p) {
    headers.set('User-Agent', `[CPD_CLIENT] Version: ${require('./package.json').version}, ${t.getLauncher().name} v${t.getLauncher().version} (launcher)`)
    downloader.events.emit("started", "[CPD] Fetching...")
    fetch(`${t.getLauncher().url}modpack/${t.getLauncher().version}`, { method: "GET", headers: headers })
        .then(res => res.json())
        .then((json) => {
            console.log(`${t.getLauncher().url}modpack/${t.getLauncher().version}`)


            try {
                for (var i = 0; i < json.file.length; i++) {
                    var obj = json.file[i];
                    arrayFiles.file.push(trim(obj));
                    if (redownload === false) {
                        if (fs.existsSync(`./${arrayFiles.file[i]}/${getFileName(json.file[i])}`)) {
                            t.events.emit("download", {  type: "file_err", error: "[CPD] File already exist !!" })
                        } else {
                            downloader.download(json.file[i], `${p}/${arrayFiles.file[i]}`)
                            console.log(p)
                        }
                    } else if (redownload === true) {
                        downloader.download(json.file[i], `${p}/${arrayFiles.file[i]}`)
                    } else {
                        return "[CPD] Error : 'redownload' is boolean paramter"
                    }
                }
            } catch (error) {
                t.events.emit("download", {  type: "url_err", error: "[CPD] This versions does not exist in cpd_server" })
            }
        });
}

function trim(str) {
    if (typeof str !== 'string') {
        throw new Error('only string parameter supported!');
    }
    var regex = new RegExp(`${t.getLauncher().url}update/`, "g");
    var a = str.replace(regex, '');
    if (str.includes("forge.jar")) {
        return `${a.toString().slice(0, a.lastIndexOf('/'))}/`
    } else {
        return `${a.toString().slice(0, a.lastIndexOf('/'))}`
    }
}

function getFileName(fileURL) {
    return fileURL.substring(fileURL.lastIndexOf('/') + 1)
}