import * as fs from "fs";
import * as path from "path";
import {Message} from "discord.js";
import {Command} from "../Command";
import {CustomClient} from "../index";

const {userDict} = require("../config.json");

const reloadcommand = new Command(
	'reloadcommand',
	async (message, args, client) => {
		if (args.length)
			await reloadSingleCommand(args[0].toLowerCase(), client, message);
		else
			await reloadCommands(client, message);
	}, {
		description: "Reloads either every, or a given command module.",
		aliases: ["reload"],
		usage: "[commandName]",
		permissions: {
			users: [userDict.misabiko],
			groups: []
		}
	}
);
export default reloadcommand;

async function reloadSingleCommand(commandName : string, client : CustomClient, message : Message) {
	const {commandCollection} = client;

	if (commandName === 'reloadcommand')
		return message.channel.send("You have to restart the bot to reload this command.");

	if (!commandCollection.has(commandName))
		return message.channel.send(`The ${commandName} command doesn't exist.`);

	if (await client.importCommand(`./${commandName}.js`, message))
		await message.channel.send(`Successfully reloaded the ${commandName} command.`);
	else
		await message.channel.send(`Failed to reload the ${commandName} command.`);
}

async function reloadCommands(client : CustomClient, message : Message) {
	const {commandCollection} = client;

	commandCollection.clear([
		commandCollection.get('reloadcommand')
	]);

	const commandFiles = fs.readdirSync(__dirname).filter(file => file.endsWith(".js"));

	let hadErrors = false;
	for (const file of commandFiles)
		if (file !== "reloadcommand.js")
			hadErrors = hadErrors || !(await client.importCommand(path.join(__dirname, file), message));

	if (hadErrors)
		await message.channel.send(`Failed to reload some commands.`);
	else
		await message.channel.send(`Successfully reloaded the commands.`);
}