/*
	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 { getGifApiKey, parseGifResult } from "@spacebar/util";
import { Request, Response, Router } from "express";
import { TenorCategoriesResults, TenorTrendingResults } from "@spacebar/schemas";

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

router.get(
    "/",
    route({
        query: {
            locale: {
                type: "string",
                description: "Locale",
            },
        },
        responses: {
            200: {
                body: "TenorTrendingResponse",
            },
        },
    }),
    async (req: Request, res: Response) => {
        // TODO: Custom providers
        // TODO: return gifs as mp4
        // const { media_format, locale } = req.query;
        const { locale } = req.query;

        const apiKey = getGifApiKey();

        const [responseSource, trendGifSource] = await Promise.all([
            fetch(`https://g.tenor.com/v1/categories?locale=${locale}&key=${apiKey}`, {
                method: "get",
                headers: { "Content-Type": "application/json" },
            }),
            fetch(`https://g.tenor.com/v1/trending?locale=${locale}&key=${apiKey}`, {
                method: "get",
                headers: { "Content-Type": "application/json" },
            }),
        ]);

        const { tags } = (await responseSource.json()) as TenorCategoriesResults;
        const { results } = (await trendGifSource.json()) as TenorTrendingResults;

        res.json({
            categories: tags.map((x) => ({
                name: x.searchterm,
                src: x.image,
            })),
            gifs: [parseGifResult(results[0])],
        }).status(200);
    },
);

export default router;