/*
	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 { route } from "@spacebar/api";
import { Config, Guild, GuildDeleteEvent, GuildMemberRemoveEvent, Member, User, emitEvent } from "@spacebar/util";
import { Request, Response, Router } from "express";
import { HTTPError } from "lambert-server";

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

router.get(
    "/",
    route({
        responses: {
            200: {
                body: "APIGuildArray",
            },
        },
    }),
    async (req: Request, res: Response) => {
        const members = await Member.find({
            relations: ["guild"],
            where: { id: req.user_id },
        });

        let guild = members.map((x) => x.guild);

        if ("with_counts" in req.query && req.query.with_counts == "true") {
            guild = []; // TODO: Load guilds with user role permissions number
        }

        res.json(guild);
    },
);

// user send to leave a certain guild
router.delete(
    "/:guild_id",
    route({
        responses: {
            204: {},
            400: {
                body: "APIErrorResponse",
            },
            404: {
                body: "APIErrorResponse",
            },
        },
    }),
    async (req: Request, res: Response) => {
        const { autoJoin } = Config.get().guild;
        const { guild_id } = req.params;
        const guild = await Guild.findOneOrFail({
            where: { id: guild_id },
            select: ["owner_id"],
        });

        if (!guild) throw new HTTPError("Guild doesn't exist", 404);
        if (guild.owner_id === req.user_id) throw new HTTPError("You can't leave your own guild", 400);
        if (autoJoin.enabled && autoJoin.guilds.includes(guild_id) && !autoJoin.canLeave) {
            throw new HTTPError("You can't leave instance auto join guilds", 400);
        }

        await Member.removeFromGuild(req.user_id, guild_id);

        return res.sendStatus(204);
    },
);

export default router;