// nice-harness.js
// Copyright (C) 2022 Rob Colbert
// License: Apache-2.0

/*
 * This module provides the most basic runtime environment for testing your game
 * in an environment similar to what will be provided when hosted in the arcade.
 * 
 * You should not alter this script at all. None of your changes made will be
 * available in the final environment(s).
 */

'use strict';

import path, { dirname } from 'path';
import { fileURLToPath } from 'url';
const __dirname = dirname(fileURLToPath(import.meta.url)); // jshint ignore:line

import { createRequire } from 'module';
const require = createRequire(import.meta.url); // jshint ignore:line

import webpack from 'webpack';
import webpackDevMiddleware from 'webpack-dev-middleware';

import WEBPACK_CONFIG from './webpack.config.js';

import express from 'express';

const APP_CONFIG = {
  pkg: require('./package.json'),
  niceGameSdk: require('./node_modules/dtp-nice-game/package.json'),
};

async function getHomeView (req, res) {
  res.locals.gameModuleUrl = '/dist/game-app.bundle.js';
  res.render('game-view');
}

(async ( ) => {

  const harness = {
    app: express(),
  };

  harness.app.locals.config = APP_CONFIG;
  harness.app.locals.pkg = APP_CONFIG.pkg;
  harness.app.locals.niceGameSdk = APP_CONFIG.niceGameSdk;

  harness.app.set('view engine', 'pug');
  harness.app.set('views', path.join(__dirname, 'game', 'views'));

  /*
   * Nice Game SDK static asset routes are served directly from the
   * ./game/assets directory in dev mode.
   */

  harness.app.use('/dist/assets', express.static(path.join(__dirname, 'game', 'assets')));
  harness.app.use('/platform', express.static(path.join(__dirname, 'platform')));

  /*
   * Webpack integration
   */

  harness.compiler = webpack(WEBPACK_CONFIG);

  /*
   * Webpack dev server middleware
   */
  harness.webpackDevMiddleware = webpackDevMiddleware(harness.compiler, {
    publicPath: WEBPACK_CONFIG.output.publicPath,
  });
  harness.app.use(harness.webpackDevMiddleware);

  /*
   * This is not a complex web app, it's a dev harness that runs a packaged
   * application in the browser with live updates. The intent is to provide a
   * development harness in which Nice Game SDK games and other apps can be
   * built. All this "app" does is serve out the SDK app as if it is being
   * loaded in Nice Arcade.
   */
  harness.app.get('/', getHomeView);

  /*
   * Start the ExpressJS server
   */
  const port = parseInt(process.env.ARCADE_HTTP_PORT || '3000', 10);
  const host = process.env.ARCADE_HTTP_BIND || '127.0.0.1';
  console.log('Starting game server harness', { host, port });
  harness.app.listen(port, host, ( ) => {
    console.log('CyberEgg 2077 is alive');
  });

})();