import Router from "@koa/router";
import config from "@/config/index.js";
import { fetchMeta } from "@/misc/fetch-meta.js";
import { Users, Notes } from "@/models/index.js";
import { IsNull, MoreThan } from "typeorm";
import { MAX_NOTE_TEXT_LENGTH, MAX_CAPTION_TEXT_LENGTH } from "@/const.js";
import { Cache } from "@/misc/cache.js";

const router = new Router();

const nodeinfo2_1path = "/nodeinfo/2.1";
const nodeinfo2_0path = "/nodeinfo/2.0";

// to cleo: leave this http or bonks
export const links = [
	{
		rel: "http://nodeinfo.diaspora.software/ns/schema/2.1",
		href: config.url + nodeinfo2_1path,
	},
	{
		rel: "http://nodeinfo.diaspora.software/ns/schema/2.0",
		href: config.url + nodeinfo2_0path,
	},
];

const nodeinfo2 = async () => {
	const now = Date.now();
	const [meta, total, activeHalfyear, activeMonth, localPosts] =
		await Promise.all([
			fetchMeta(true),
			Users.count({ where: { host: IsNull() } }),
			Users.count({
				where: {
					host: IsNull(),
					lastActiveDate: MoreThan(new Date(now - 15552000000)),
				},
			}),
			Users.count({
				where: {
					host: IsNull(),
					lastActiveDate: MoreThan(new Date(now - 2592000000)),
				},
			}),
			Notes.count({ where: { userHost: IsNull() } }),
		]);

	return {
		software: {
			name: "iceshrimp",
			version: config.version,
			repository: meta.repositoryUrl,
			homepage: "https://iceshrimp.dev/",
		},
		protocols: ["activitypub"],
		services: {
			inbound: [] as string[],
			outbound: ["atom1.0", "rss2.0"],
		},
		openRegistrations: !meta.disableRegistration,
		usage: {
			users: { total, activeHalfyear, activeMonth },
			localPosts,
			localComments: 0,
		},
		metadata: {
			nodeName: meta.name,
			nodeDescription: meta.description,
			maintainer: {
				name: meta.maintainerName,
				email: meta.maintainerEmail,
			},
			langs: meta.langs,
			tosUrl: meta.ToSUrl,
			repositoryUrl: meta.repositoryUrl,
			feedbackUrl: meta.feedbackUrl,
			disableRegistration: meta.disableRegistration,
			disableLocalTimeline: meta.disableLocalTimeline,
			disableRecommendedTimeline: meta.disableRecommendedTimeline,
			disableGlobalTimeline: meta.disableGlobalTimeline,
			emailRequiredForSignup: meta.emailRequiredForSignup,
			postEditing: true,
			postImports: meta.experimentalFeatures?.postImports || false,
			enableHcaptcha: meta.enableHcaptcha,
			enableRecaptcha: meta.enableRecaptcha,
			maxNoteTextLength: MAX_NOTE_TEXT_LENGTH,
			maxCaptionTextLength: MAX_CAPTION_TEXT_LENGTH,
			enableGithubIntegration: meta.enableGithubIntegration,
			enableDiscordIntegration: meta.enableDiscordIntegration,
			enableEmail: meta.enableEmail,
			themeColor: meta.themeColor || "#31748f",
		},
	};
};

const cache = new Cache<Awaited<ReturnType<typeof nodeinfo2>>>(
	"nodeinfo",
	60 * 10,
);

router.get(nodeinfo2_1path, async (ctx) => {
	const base = await cache.fetch(null, () => nodeinfo2());

	ctx.body = { version: "2.1", ...base };
	ctx.set("Cache-Control", "public, max-age=600");
});

router.get(nodeinfo2_0path, async (ctx) => {
	const base = await cache.fetch(null, () => nodeinfo2());

	// @ts-ignore
	base.software.repository = undefined;

	ctx.body = { version: "2.0", ...base };
	ctx.set("Cache-Control", "public, max-age=600");
});

export default router;
