import { Request, Response, Router } from "express";
import { emitEvent, getPermission, Guild, GuildUpdateEvent, Member } from "@fosscord/util";
import { HTTPError } from "lambert-server";
import { GuildUpdateSchema } from "../../../schema/Guild";

import { check } from "../../../util/instanceOf";
import { handleFile } from "../../../util/cdn";
import "missing-native-js-functions";

const router = Router();

router.get("/", async (req: Request, res: Response) => {
	const { guild_id } = req.params;

	const [guild, member_count, member] = await Promise.all([
		Guild.findOneOrFail({ id: guild_id }),
		Member.count({ guild_id: guild_id, id: req.user_id }),
		Member.findOneOrFail({ id: req.user_id })
	]);
	if (!member_count) throw new HTTPError("You are not a member of the guild you are trying to access", 401);

	// @ts-ignore
	guild.joined_at = member?.joined_at;

	return res.json(guild);
});

router.patch("/", check(GuildUpdateSchema), async (req: Request, res: Response) => {
	const body = req.body as GuildUpdateSchema;
	const { guild_id } = req.params;
	// TODO: guild update check image

	const perms = await getPermission(req.user_id, guild_id);
	perms.hasThrow("MANAGE_GUILD");

	if (body.icon) body.icon = await handleFile(`/icons/${guild_id}`, body.icon);
	if (body.banner) body.banner = await handleFile(`/banners/${guild_id}`, body.banner);
	if (body.splash) body.splash = await handleFile(`/splashes/${guild_id}`, body.splash);

	var guild = await Guild.findOneOrFail({
		where: { id: guild_id },
		relations: ["emojis", "roles", "stickers"]
	});
	// TODO: check if body ids are valid
	guild.assign(body);

	const data = guild.toJSON();
	// TODO: guild hashes
	// TODO: fix vanity_url_code, template_id
	delete data.vanity_url_code;
	delete data.template_id;

	await Promise.all([guild.save(), emitEvent({ event: "GUILD_UPDATE", data, guild_id } as GuildUpdateEvent)]);

	return res.json(data);
});

export default router;