"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.AuthProxy = void 0;
const _1 = require(".");
const node_fetch_1 = require("node-fetch");
const cachedUsers = {};
const router = (req, res, next) => {
    const resolvable = new _1.Resolvable(() => __awaiter(void 0, void 0, void 0, function* () {
        if (!_1.DefaultConfig.USERINFO_HEADER) {
            return undefined;
        }
        const token = req.header(_1.DefaultConfig.USERINFO_HEADER);
        if (token && cachedUsers[token])
            return cachedUsers[token];
        const url = _1.DefaultConfig.AUTH_PROXY_USERINFO_URL;
        if (token === undefined || url === undefined) {
            return undefined;
        }
        try {
            const expireHeader = req.header(_1.DefaultConfig.EXPIRE_HEADER);
            const expireSecDate = expireHeader && parseInt(expireHeader, 10) || undefined;
            const expiresIn = expireSecDate && expireSecDate * 1000 > Date.now() && expireSecDate * 1000 - Date.now();
            const res = yield node_fetch_1.default(url, { headers: [[_1.DefaultConfig.USERINFO_HEADER, token]] });
            const userinfo = yield res.json();
            if (expiresIn) {
                cachedUsers[token] = userinfo;
                setTimeout(() => delete cachedUsers[token], expiresIn);
            }
            return userinfo;
        }
        catch (e) {
            _1.Logger.warn(e);
            return undefined;
        }
    }));
    req.getUserInfo = () => resolvable.resolve();
    res.initLogout = function () {
        const url = _1.DefaultConfig.AUTH_PROXY_INIT_LOGOUT_URL;
        if (url === undefined) {
            return false;
        }
        this.redirect(307, url);
        return true;
    };
    next();
};
exports.AuthProxy = {
    router,
};