/*
	Spacebar: A FOSS re-implementation and extension of the Discord.com backend.
	Copyright (C) 2023 Spacebar and Spacebar Contributors
	
	This program is free software: you can redistribute it and/or modify
	it under the terms of the GNU Affero General Public License as published
	by the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.
	
	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU Affero General Public License for more details.
	
	You should have received a copy of the GNU Affero General Public License
	along with this program.  If not, see <https://www.gnu.org/licenses/>.
*/

import { randomString, route } from "@spacebar/api";
import { Config, ValidRegistrationToken } from "@spacebar/util";
import { Request, Response, Router } from "express";

const router: Router = Router({ mergeParams: true });
export default router;

router.get(
    "/",
    route({
        query: {
            count: {
                type: "number",
                description: "The number of registration tokens to generate. Defaults to 1.",
            },
            length: {
                type: "number",
                description: "The length of each registration token. Defaults to 255.",
            },
        },
        right: "CREATE_REGISTRATION_TOKENS",
        responses: { 200: { body: "GenerateRegistrationTokensResponse" } },
    }),
    async (req: Request, res: Response) => {
        const count = req.query.count ? parseInt(req.query.count as string) : 1;
        const length = req.query.length ? parseInt(req.query.length as string) : 255;

        const tokens: ValidRegistrationToken[] = [];

        for (let i = 0; i < count; i++) {
            const token = ValidRegistrationToken.create({
                token: randomString(length),
                expires_at: new Date(Date.now() + Config.get().security.defaultRegistrationTokenExpiration),
            });
            tokens.push(token);
        }

        // Why are these options used, exactly?
        await ValidRegistrationToken.save(tokens, {
            chunk: 1000,
            reload: false,
            transaction: false,
        });

        const ret = req.query.include_url ? tokens.map((x) => `${Config.get().general.frontPage}/register?token=${x.token}`) : tokens.map((x) => x.token);

        if (req.query.plain) return res.send(ret.join("\n"));

        return res.json({ tokens: ret });
    },
);