/*
	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 { emitEvent, getPermission, getRights, GuildMemberUpdateEvent, handleFile, Member, OrmUtils, Permissions } from "@spacebar/util";
import { Request, Response, Router } from "express";
import { MemberChangeProfileSchema } from "@spacebar/schemas";

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

router.patch(
    "/:member_id",
    route({
        requestBody: "MemberChangeProfileSchema",
        responses: {
            200: {
                body: "Member",
            },
            400: {
                body: "APIErrorResponse",
            },
            404: {
                body: "APIErrorResponse",
            },
        },
    }),
    async (req: Request, res: Response) => {
        const { guild_id } = req.params as { [key: string]: string };
        let { member_id } = req.params as { [key: string]: string };
        const body = req.body as MemberChangeProfileSchema;
        if (member_id === "@me") member_id = req.user_id;

        const permission = await getPermission(req.user_id, guild_id);

        if (req.user_id === member_id) {
            if (body.nick) {
                permission.hasThrow(Permissions.FLAGS.CHANGE_NICKNAME);
            }
        } else {
            if (Object.keys(body).length !== 1 || !body.nick) {
                const rights = await getRights(req.user_id);
                rights.hasThrow("MANAGE_USERS");
            } else {
                permission.hasThrow(Permissions.FLAGS.MANAGE_NICKNAMES);
            }
        }

        let member = await Member.findOneOrFail({
            where: { id: member_id, guild_id },
            relations: { roles: true, user: true },
        });

        if (body.banner) body.banner = await handleFile(`/guilds/${guild_id}/users/${member_id}/avatars`, body.banner as string);

        member = await OrmUtils.mergeDeep(member, body);

        await member.save();

        // do not use promise.all as we have to first write to db before emitting the event to catch errors
        await emitEvent({
            event: "GUILD_MEMBER_UPDATE",
            guild_id,
            data: { ...member, roles: member.roles.map((x) => x.id) },
        } as GuildMemberUpdateEvent);

        res.json(member);
    },
);

export default router;
