/*
	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 { FieldErrors, Release } from "@spacebar/util";
import { Request, Response, Router } from "express";

const router = Router();

const PLATFORMS = ["linux", "windows", "darwin"];
const ARCHS = ["x86_64", "i686", "aarch64", "armv7"];

router.get(
	"/",
	route({
		responses: {
			200: {
				body: "UpdatesResponse",
			},
			400: {
				body: "APIErrorResponse",
			},
			404: {
				body: "APIErrorResponse",
			},
		},
		query: {
			platform: {
				type: "string",
				required: true,
				description: "The platform to get the manifest for",
			},
			arch: {
				type: "string",
				required: true,
				description: "The architecture to get the manifest for",
			},
			channel: {
				type: "string",
				required: true,
				description: "The release channel to get the manifest for",
			},
		},
	}),
	async (req: Request, res: Response) => {
		const { platform, arch, channel } = req.query as Record<string, string>;

		if (PLATFORMS.indexOf(platform) == -1)
			throw FieldErrors({
				platform: {
					message: `Value must be one of (${PLATFORMS.map(
						(x) => `'${x}'`,
					).join(", ")}).`,
					code: "BASE_TYPE_CHOICES",
				},
			});

		if (ARCHS.indexOf(arch) == -1)
			throw FieldErrors({
				arch: {
					message: `Value must be one of (${ARCHS.map(
						(x) => `'${x}'`,
					).join(", ")}).`,
					code: "BASE_TYPE_CHOICES",
				},
			});

		// no strict validation on channel so instance owners can use custom channels easily

		const release = await Release.findOneOrFail({
			where: {
				enabled: true,
				platform: platform,
				arch: arch,
				channel: channel,
			},
			order: { pub_date: "DESC" },
		});

		res.json({
			version: release.version,
			name: release.name,
			pub_date: release.pub_date,
			url: release.url,
			notes: release.notes,
			signature: release.signature,
		});
	},
);

export default router;