import { Router, Request, Response } from "express";
import { route } from "@fosscord/api";
import { BackupCode, FieldErrors, generateToken, User } from "@fosscord/util";
import { verifyToken } from "node-2fa";
import { HTTPError } from "lambert-server";
const router = Router();

export interface TotpSchema {
	code: string,
	ticket: string,
	gift_code_sku_id?: string | null,
	login_source?: string | null,
}

router.post("/", route({ body: "TotpSchema" }), async (req: Request, res: Response) => {
	const { code, ticket, gift_code_sku_id, login_source } = req.body as TotpSchema;

	const user = await User.findOneOrFail({
		where: {
			totp_last_ticket: ticket,
		},
		select: [
			"id",
			"totp_secret",
			"settings",
		],
	});

	const backup = await BackupCode.findOne({ where: { code: code, expired: false, consumed: false, user: { id: user.id } } });

	if (!backup) {
		const ret = verifyToken(user.totp_secret!, code);
		if (!ret || ret.delta != 0)
			throw new HTTPError(req.t("auth:login.INVALID_TOTP_CODE"), 60008);
	}
	else {
		backup.consumed = true;
		await backup.save();
	}

	await User.update({ id: user.id }, { totp_last_ticket: "" });

	return res.json({
		token: await generateToken(user.id),
		user_settings: user.settings,
	});
});

export default router;