import { Hono } from "hono";
import { serveStatic } from "hono/bun";
import { cors } from "hono/cors";
import dashboardRoutes from "./api/dashboard";
import executeRoutes from "./api/execute";
import pathsRoutes from "./api/paths";
import reviewRoutes from "./api/review";
import scanRoutes from "./api/scan";
import settingsRoutes from "./api/settings";
import subtitlesRoutes from "./api/subtitles";
import { getDb } from "./db/index";
import { log, error as logError } from "./lib/log";
import { startMqttClient } from "./services/mqtt";

const app = new Hono();

// ─── CORS (dev: Vite on :5173 talks to Hono on :3000) ────────────────────────

app.use("/api/*", cors({ origin: ["http://localhost:5173", "http://localhost:3000"] }));

// ─── Request logging ──────────────────────────────────────────────────────────

app.use("/api/*", async (c, next) => {
	const start = Date.now();
	await next();
	const ms = Date.now() - start;
	// Skip noisy SSE/polling endpoints
	if (c.req.path.endsWith("/events")) return;
	log(`${c.req.method} ${c.req.path} → ${c.res.status} (${ms}ms)`);
});

// ─── API routes ───────────────────────────────────────────────────────────────

import pkg from "../package.json";

app.get("/api/version", (c) => c.json({ version: pkg.version }));
app.route("/api/dashboard", dashboardRoutes);
app.route("/api/settings", settingsRoutes);
app.route("/api/scan", scanRoutes);
app.route("/api/review", reviewRoutes);
app.route("/api/execute", executeRoutes);
app.route("/api/subtitles", subtitlesRoutes);
app.route("/api/paths", pathsRoutes);

// ─── Static assets (production: serve Vite build) ────────────────────────────

app.use("/assets/*", serveStatic({ root: "./dist" }));
app.use("/favicon.ico", serveStatic({ path: "./dist/favicon.ico" }));

// ─── SPA fallback ─────────────────────────────────────────────────────────────
// All non-API routes serve the React index.html so TanStack Router handles them.

app.get("*", async (c) => {
	if (c.req.path.startsWith("/api/")) return c.notFound();
	// In dev the Vite server handles the SPA. In production serve dist/index.html.
	try {
		const html = await Bun.file("./dist/index.html").text();
		return c.html(html);
	} catch {
		return c.text("Run `bun build` first to generate the frontend.", 503);
	}
});

// ─── Start ────────────────────────────────────────────────────────────────────

const port = Number(process.env.PORT ?? "3000");

log(`netfelix-audio-fix v${pkg.version} starting on http://localhost:${port}`);

getDb();

startMqttClient().catch((err) => logError("MQTT bootstrap failed:", err));

export default {
	port,
	fetch: app.fetch,
	idleTimeout: 0,
};