/**
 * @file SPA router
 * Routes all requests to index.html view. Index.html is a Vue.js single page application.
 * If in production, manifest.json is parsed and passed to index.html
 */

import express from "express";
import path from "path";
import fs from "fs/promises";

const router = express.Router();


const environment = process.env.NODE_ENV;

router.get(/.*/, async (req, res) => {
    const manifest = await parseManifest()

    const data = {
        environment, manifest
    }

    res.render("index.html.ejs", data)
})

const parseManifest = async () => {
    if (environment !== "production") return {}

    const manifestPath = path.join(path.resolve(), "dist", ".vite", "manifest.json");
    const manifestFile = await fs.readFile(manifestPath);

    return JSON.parse(manifestFile)
}


export default router;