const fs = require('fs');
const cp = require('child_process');
const yaml = require('yamljs');

var registry = {}; //registry of mods downloaded
var mods = fs.readFileSync("./mods.yaml", 'utf-8');

mods = yaml.parse(mods);

var oldRegistry = fs.readFileSync("/root/mcserver/modRegistry.yaml", 'utf-8');
oldRegistry = yaml.parse(oldRegistry);
var modList = mods.mod_list;
var modDownloads = mods.mod_downloads;

modList.forEach((ele, idx, arr) => {
    if (Object.keys(oldRegistry).includes(ele)) {
        return;
    }
    let link = modDownloads[ele];
    let modinfo = {
        modName: "",
        link: link

    }

    if (link == "client"){
        modinfo.modName = "*" + ele;
        return;
    }
    let output = cp.execSync("cd /root/mcserver/mods && wget --content-disposition -nc " + link).toString('utf-8'); //change dir and download mod
    console.log(output);
    try {
        modinfo.modName = output.match(/(["'])(?:(?=(\\?))\2.)*?\1/)[0];//kill myself?
        modinfo.modName = modinfo.modName.substring(1, modinfo.modName.length - 1);
    } catch{
        modinfo.modName = "*" + ele;
    }

    console.log("\n\n\n\n\n\n" + modinfo.modName + "\n\n\n\n\n\n");
    registry[ele] = modinfo;

});

fs.writeFileSync("/root/mcserver/modRegistry.yaml", yaml.stringify(registry));