if (Number(process.version.slice(1).split(".")[0]) < 8) throw new Error("Node 8.0.0 or higher is required. Update Node on your system.");

const Discord = require("discord.js");

const { promisify } = require("util");
const readdir = promisify(require("fs").readdir);
const Enmap = require("enmap");
const path = require("path");

const client = new Discord.Client();
client.config = require("./config.js");
client.logger = require("./modules/Logger");

require("./modules/functions.js")(client);
client.commands = new Enmap();
client.aliases = new Enmap();
client.settings = new Enmap({name: "settings"});

async function crawl(directory, filesArray) {
	const dirs = await readdir(directory, {
		withFileTypes: true 
	});

	for (let i = 0; i < dirs.length; i++) {
		const currentDir = dirs[i];
		const newPath = path.join(directory, currentDir.name);
		if (currentDir.isDirectory()) {
			await crawl(newPath, filesArray);
		}
		else {
			filesArray.push(newPath);
		}
	}
}

const init = async () => {
	let cmdFiles = []
	await crawl("commands",cmdFiles);
	client.logger.log(`Loading a total of ${cmdFiles.length} commands.`);
	cmdFiles.forEach(f => {
		if (!f.endsWith(".js")) return;
		const response = client.loadCommand(f);
		if (response) console.log(response);
	});

	const evtFiles = await readdir("./events/");
	client.logger.log(`Loading a total of ${evtFiles.length} events.`);
	evtFiles.forEach(file => {
		const eventName = file.split(".")[0];
		client.logger.log(`Loading Event: ${eventName}`);
		const event = require(`./events/${file}`);
		client.on(eventName, event.bind(null, client));
	});
	
	client.levelCache = {};
	for (let i = 0; i < client.config.permLevels.length; i++) {
		const thisLevel = client.config.permLevels[i];
		client.levelCache[thisLevel.name] = thisLevel.level;
	}
	
	client.login(client.config.token);
};

init();