/**
 * Data module — privacy-first analytics dashboard.
 *
 * Lightweight module that shows analytics stats from the
 * self-hosted Umami instance. No database — proxies to Umami API.
 */

import { Hono } from "hono";
import { renderShell } from "../../server/shell";
import { getModuleInfoList } from "../../shared/module";
import type { RSpaceModule } from "../../shared/module";

const routes = new Hono();

const UMAMI_URL = process.env.UMAMI_URL || "https://analytics.rspace.online";
const UMAMI_WEBSITE_ID = process.env.UMAMI_WEBSITE_ID || "292f6ac6-79f8-497b-ba6a-7a51e3b87b9f";

const TRACKED_APPS = [
	"rSpace", "rNotes", "rVote", "rFunds", "rCart", "rWallet",
	"rPubs", "rChoices", "rCal", "rForum", "rInbox", "rFiles",
	"rTrips", "rTube", "rWork", "rNetwork", "rData",
];

// ── API routes ──

// GET /api/info — module info
routes.get("/api/info", (c) => {
	return c.json({
		module: "data",
		name: "rData",
		umamiUrl: UMAMI_URL,
		umamiConfigured: !!UMAMI_URL,
		features: ["privacy-first", "cookieless", "self-hosted"],
		trackedApps: TRACKED_APPS.length,
	});
});

// GET /api/health
routes.get("/api/health", (c) => c.json({ ok: true }));

// GET /api/stats — proxy to Umami stats API
routes.get("/api/stats", async (c) => {
	const startAt = c.req.query("startAt") || String(Date.now() - 24 * 3600_000);
	const endAt = c.req.query("endAt") || String(Date.now());

	try {
		const res = await fetch(
			`${UMAMI_URL}/api/websites/${UMAMI_WEBSITE_ID}/stats?startAt=${startAt}&endAt=${endAt}`,
			{ signal: AbortSignal.timeout(5000) }
		);
		if (res.ok) {
			const data = await res.json();
			return c.json({
				...data as Record<string, unknown>,
				trackedApps: TRACKED_APPS.length,
				apps: TRACKED_APPS,
				selfHosted: true,
				dashboardUrl: UMAMI_URL,
			});
		}
	} catch {}

	// Fallback when Umami unreachable
	return c.json({
		trackedApps: TRACKED_APPS.length,
		cookiesSet: 0,
		scriptSize: "~2KB",
		selfHosted: true,
		dashboardUrl: UMAMI_URL,
		apps: TRACKED_APPS,
	});
});

// GET /api/active — proxy to Umami active visitors
routes.get("/api/active", async (c) => {
	try {
		const res = await fetch(
			`${UMAMI_URL}/api/websites/${UMAMI_WEBSITE_ID}/active`,
			{ signal: AbortSignal.timeout(5000) }
		);
		if (res.ok) return c.json(await res.json());
	} catch {}
	return c.json({ x: 0 });
});

// GET /collect.js — proxy Umami tracker script
routes.get("/collect.js", async (c) => {
	try {
		const res = await fetch(`${UMAMI_URL}/script.js`, { signal: AbortSignal.timeout(5000) });
		if (res.ok) {
			const script = await res.text();
			return new Response(script, {
				headers: {
					"Content-Type": "application/javascript",
					"Cache-Control": "public, max-age=3600",
				},
			});
		}
	} catch {}
	return new Response("/* umami unavailable */", {
		headers: { "Content-Type": "application/javascript" },
	});
});

// POST /api/collect — proxy Umami event collection
routes.post("/api/collect", async (c) => {
	try {
		const body = await c.req.text();
		const res = await fetch(`${UMAMI_URL}/api/send`, {
			method: "POST",
			headers: { "Content-Type": "application/json" },
			body,
			signal: AbortSignal.timeout(5000),
		});
		if (res.ok) return c.json(await res.json());
	} catch {}
	return c.json({ ok: true });
});

// ── Page route ──
routes.get("/", (c) => {
	const space = c.req.param("space") || "demo";
	return c.html(renderShell({
		title: `${space} — Data | rSpace`,
		moduleId: "data",
		spaceSlug: space,
		modules: getModuleInfoList(),
		theme: "light",
		styles: `<link rel="stylesheet" href="/modules/data/data.css">`,
		body: `<folk-analytics-view space="${space}"></folk-analytics-view>`,
		scripts: `<script type="module" src="/modules/data/folk-analytics-view.js"></script>`,
	}));
});

export const dataModule: RSpaceModule = {
	id: "data",
	name: "rData",
	icon: "\u{1F4CA}",
	description: "Privacy-first analytics for the r* ecosystem",
	routes,
	standaloneDomain: "rdata.online",
};