/*
	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 { User, UserSettings, emitEvent, Session, PresenceUpdateEvent } from "@spacebar/util";
import { Request, Response, Router } from "express";
import { UserSettingsUpdateSchema } from "@spacebar/schemas";

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

router.get(
    "/",
    route({
        responses: {
            200: {
                body: "UserSettings",
            },
            404: {
                body: "APIErrorResponse",
            },
        },
    }),
    async (req: Request, res: Response) => {
        const settings = await UserSettings.getOrDefault(req.user_id);
        return res.json(settings);
    },
);

router.patch(
    "/",
    route({
        requestBody: "UserSettingsUpdateSchema",
        responses: {
            200: {
                body: "UserSettings",
            },
            400: {
                body: "APIErrorResponse",
            },
            404: {
                body: "APIErrorResponse",
            },
        },
    }),
    async (req: Request, res: Response) => {
        const body = req.body as UserSettingsUpdateSchema;
        if (!body) return res.status(400).json({ code: 400, message: "Invalid request body" });
        if (body.locale === "en") body.locale = "en-US"; // fix discord client crash on unknown locale

        const user = await User.findOneOrFail({
            where: { id: req.user_id, bot: false },
            relations: { settings: true },
        });

        if (!user.settings) user.settings = UserSettings.create<UserSettings>(body);
        else user.settings.assign(body);

        if (body.guild_folders) user.settings.guild_folders = body.guild_folders;

        await user.settings.save();
        await user.save();
        if (body.status) {
            const [session] = (await Session.find({
                where: { user_id: user.id },
            })) as [Session | undefined];
            if (session) {
                session.status = body.status;

                await Promise.all([
                    emitEvent({
                        event: "PRESENCE_UPDATE",
                        user_id: user.id,
                        data: {
                            user: user.toPublicUser(),
                            activities: session.activities,
                            client_status: session?.client_status,
                            status: session.getPublicStatus(),
                        },
                    } satisfies PresenceUpdateEvent),
                    session.save(),
                ]);
            }
        }

        res.json({ ...user.settings, index: undefined });
    },
);

export default router;