import jwt, { VerifyOptions } from "jsonwebtoken";
import { User } from "../entities";

export const JWTOptions: VerifyOptions = { algorithms: ["HS256"] };

export function checkToken(token: string, jwtSecret: string): Promise<any> {
	return new Promise((res, rej) => {
		token = token.replace("Bot ", ""); // TODO: proper bot support
		jwt.verify(token, jwtSecret, JWTOptions, async (err, decoded: any) => {
			if (err || !decoded) return rej("Invalid Token");

			const user = await User.findOne({ id: decoded.id }, { select: ["data", "bot", "disabled", "deleted"] });
			if (!user) return rej("Invalid Token");
			// we need to round it to seconds as it saved as seconds in jwt iat and valid_tokens_since is stored in milliseconds
			if (decoded.iat * 1000 < new Date(user.data.valid_tokens_since).setSeconds(0, 0))
				return rej("Invalid Token");
			if (user.disabled) return rej("User disabled");
			if (user.deleted) return rej("User not found");

			return res({ decoded, user });
		});
	});
}