import fs from "fs/promises";
import { Server, ServerOptions } from "lambert-server";
import { Authentication, GlobalRateLimit } from "./middlewares/";
import Config from "./util/Config";
import db from "./util/Database";
import i18next from "i18next";
import i18nextMiddleware from "i18next-http-middleware";
import { Request } from "express";

export interface DiscordServerOptions extends ServerOptions {}

declare global {
	namespace Express {
		interface Request {
			server: DiscordServer;
		}
	}
}

export class DiscordServer extends Server {
	public options: DiscordServerOptions;

	constructor(opts?: Partial<DiscordServerOptions>) {
		super({ ...opts, errorHandler: false });
	}

	async start() {
		await db.init();
		console.log("[DB] connected");
		await Promise.all([Config.init()]);

		this.app.use(GlobalRateLimit);
		this.app.use(Authentication);
		const namespaces = await fs.readdir(__dirname + "/locales/de/");
		const ns = namespaces.filter((x) => x.endsWith(".json")).map((x) => x.slice(0, x.length - 5));

		i18next.use(i18nextMiddleware.LanguageDetector).init({
			preload: ["en", "de"],
			fallbackLng: "en",
			ns,
			backend: {
				loadPath: "locales/{{lng}}/{{ns}}.json",
			},
		});
		this.app.use(i18nextMiddleware.handle(i18next, {}));

		this.routes = await this.registerRoutes(__dirname + "/routes/");
		const indexHTML = await fs.readFile(__dirname + "/../client_test/index.html");

		this.app.get("*", (req, res) => {
			res.set("Cache-Control", "public, max-age=" + 60 * 60 * 24);
			res.set("content-type", "text/html");
			res.send(indexHTML);
		});
		return super.start();
	}
}