/*
	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 { Config, Guild } from "@spacebar/util";

import { route } from "@spacebar/api";
import { Request, Response, Router } from "express";
import { ArrayContains } from "typeorm";

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

router.get(
    "/",
    route({
        responses: {
            200: {
                body: "GuildRecommendationsResponse",
            },
        },
        spacebarOnly: false, // Not part of public openapi schema
    }),
    async (req: Request, res: Response) => {
        // const { limit, personalization_disabled } = req.query;
        const { limit } = req.query;
        const showAllGuilds = Config.get().guild.discovery.showAllGuilds;

        const genLoadId = (size: number) => [...Array(size)].map(() => Math.floor(Math.random() * 16).toString(16)).join("");

        const guilds = showAllGuilds
            ? await Guild.find({ take: Math.abs(Number(limit || 24)) })
            : await Guild.find({
                  where: { features: ArrayContains(["DISCOVERABLE"]) },
                  take: Math.abs(Number(limit || 24)),
              });
        res.send({
            recommended_guilds: guilds,
            load_id: `server_recs/${genLoadId(32)}`,
        }).status(200);
    },
);

export default router;
