set frontend development environment

+/node_modules/
+/public/build/
+
+.DS_Store

-var createError = require('http-errors');
-var express = require('express');
-var path = require('path');
-var cookieParser = require('cookie-parser');
-var logger = require('morgan');
-
-var indexRouter = require('./routes/index');
-var usersRouter = require('./routes/users');
-
-var app = express();
-
-// view engine setup
-app.set('views', path.join(__dirname, 'views'));
-app.set('view engine', 'ejs');
-
-app.use(logger('dev'));
-app.use(express.json());
-app.use(express.urlencoded({ extended: false }));
-app.use(cookieParser());
-app.use(express.static(path.join(__dirname, 'public')));
-
-app.use('/', indexRouter);
-app.use('/users', usersRouter);
-
-// catch 404 and forward to error handler
-app.use(function(req, res, next) {
-  next(createError(404));
-});
-
-// error handler
-app.use(function(err, req, res, next) {
-  // set locals, only providing error in development
-  res.locals.message = err.message;
-  res.locals.error = req.app.get('env') === 'development' ? err : {};
-
-  // render the error page
-  res.status(err.status || 500);
-  res.render('error');
-});
-
-module.exports = app;

-#!/usr/bin/env node
-
-/**
- * Module dependencies.
- */
-
-var app = require('../app');
-var debug = require('debug')('tft:server');
-var http = require('http');
-
-/**
- * Get port from environment and store in Express.
- */
-
-var port = normalizePort(process.env.PORT || '3000');
-app.set('port', port);
-
-/**
- * Create HTTP server.
- */
-
-var server = http.createServer(app);
-
-/**
- * Listen on provided port, on all network interfaces.
- */
-
-server.listen(port);
-server.on('error', onError);
-server.on('listening', onListening);
-
-/**
- * Normalize a port into a number, string, or false.
- */
-
-function normalizePort(val) {
-  var port = parseInt(val, 10);
-
-  if (isNaN(port)) {
-    // named pipe
-    return val;
-  }
-
-  if (port >= 0) {
-    // port number
-    return port;
-  }
-
-  return false;
-}
-
-/**
- * Event listener for HTTP server "error" event.
- */
-
-function onError(error) {
-  if (error.syscall !== 'listen') {
-    throw error;
-  }
-
-  var bind = typeof port === 'string'
-    ? 'Pipe ' + port
-    : 'Port ' + port;
-
-  // handle specific listen errors with friendly messages
-  switch (error.code) {
-    case 'EACCES':
-      console.error(bind + ' requires elevated privileges');
-      process.exit(1);
-      break;
-    case 'EADDRINUSE':
-      console.error(bind + ' is already in use');
-      process.exit(1);
-      break;
-    default:
-      throw error;
-  }
-}
-
-/**
- * Event listener for HTTP server "listening" event.
- */
-
-function onListening() {
-  var addr = server.address();
-  var bind = typeof addr === 'string'
-    ? 'pipe ' + addr
-    : 'port ' + addr.port;
-  debug('Listening on ' + bind);
-}

-div.svelte-hpuxjp{text-align:left;box-sizing:border-box;display:block}body{padding:0;margin:0}html{scroll-behavior:smooth}nav.svelte-pxoyop{background-color:rgb(225, 175, 85);font-family:"Helvetica Neue", "Helvetica", "Arial", sans-serif;height:70px;top:0}.inner.svelte-pxoyop{max-width:500px;padding-left:10px;padding-right:10px;margin:auto;box-sizing:border-box;display:flex;align-items:center;height:100%}.logo.svelte-pxoyop{display:flex;position:absolute;width:50px;left:40px;top:25px
-	}.navbar-list.svelte-pxoyop{display:flex;padding:0;width:100%;justify-content:space-between;margin:0}#backtotop.svelte-16na1oq{border-radius:100%;width:50px;height:50px;position:fixed;right:4%;bottom:10%}.article.svelte-90y9ti.svelte-90y9ti{font-family:맑은고딕, Malgun Gothic, dotum, gulim, sans-serif;font-size:24pt;padding:10vw;text-align:center;display:flex}.wbg.svelte-90y9ti.svelte-90y9ti{background-color:#ffffff}.gbg.svelte-90y9ti.svelte-90y9ti{background-color:#edeff2}.article.svelte-90y9ti img.svelte-90y9ti{display:inline-block;max-width:500px;width:20vw;margin-left:4vw;margin-right:4vw}.article.svelte-90y9ti .text.svelte-90y9ti{display:inline-block;width:50vw}.contents.svelte-90y9ti.svelte-90y9ti{display:flex;align-items:center}li.svelte-1c821dq{list-style-type:none;position:relative}li.svelte-1c821dq:before{content:"";position:absolute;bottom:0;left:0;width:100%;height:1px}a.svelte-1c821dq{color:#e5e6e5;text-decoration:none;display:inline-flex;height:45px;align-items:center;padding:0 10px;font-size:20px}@media only screen and (max-width: 767px){a.svelte-1c821dq{display:none}}.onmouse.svelte-1c821dq{color:#ffffff}#chat_bg.svelte-1177unw{box-sizing:border-box;display:flex;height:100vh;background-color:#edeff2}
\ No newline at end of file

-html, body {
-	position: relative;
-	width: 100%;
-	height: 100%;
-}
-
-body {
-	color: #333;
-	margin: 0;
-	padding: 8px;
-	box-sizing: border-box;
-	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
-}
-
-a {
-	color: rgb(0,100,200);
-	text-decoration: none;
-}
-
-a:hover {
-	text-decoration: underline;
-}
-
-a:visited {
-	color: rgb(0,80,160);
-}
-
-label {
-	display: block;
-}
-
-input, button, select, textarea {
-	font-family: inherit;
-	font-size: inherit;
-	-webkit-padding: 0.4em 0;
-	padding: 0.4em;
-	margin: 0 0 0.5em 0;
-	box-sizing: border-box;
-	border: 1px solid #ccc;
-	border-radius: 2px;
-}
-
-input:disabled {
-	color: #ccc;
-}
-
-button {
-	color: #333;
-	background-color: #f4f4f4;
-	outline: none;
-}
-
-button:disabled {
-	color: #999;
-}
-
-button:not(:disabled):active {
-	background-color: #ddd;
-}
-
-button:focus {
-	border-color: #666;
-}

-<!DOCTYPE html>
-<html lang="en">
-<head>
-	<meta charset='utf-8'>
-	<meta name='viewport' content='width=device-width,initial-scale=1'>
-
-	<title>Svelte app</title>
-
-	<link rel='icon' type='image/png' href='./favicon.png'>
-	<link rel='stylesheet' href='./global.css'>
-	<link rel='stylesheet' href='./build/bundle.css'>
-
-	<script defer src='./build/bundle.js'></script>
-</head>
-
-<body>
-</body>
-</html>

 {
 {
-  "name": "tft",
-  "version": "0.0.0",
+  "name": "svelte-app",
+  "version": "1.0.0",
   "private": true,
   "private": true,
   "scripts": {
   "scripts": {
-    "start": "node ./bin/www"
+    "build": "rollup -c",
+    "dev": "rollup -c -w",
+    "start": "sirv public --no-clear"
+  },
+  "devDependencies": {
+    "@rollup/plugin-commonjs": "^17.0.0",
+    "@rollup/plugin-node-resolve": "^11.0.0",
+    "rollup": "^2.3.4",
+    "rollup-plugin-css-only": "^3.1.0",
+    "rollup-plugin-livereload": "^2.0.0",
+    "rollup-plugin-svelte": "^7.0.0",
+    "rollup-plugin-terser": "^7.0.0",
+    "svelte": "^3.0.0"
   },
   },
   "dependencies": {
   "dependencies": {
-    "cookie-parser": "~1.4.4",
-    "debug": "~2.6.9",
-    "ejs": "~2.6.1",
-    "express": "~4.16.1",
-    "http-errors": "~1.6.3",
-    "morgan": "~1.9.1"
+    "engine.io-parser": "^5.0.1",
+    "sirv-cli": "^1.0.0"
   }
   }
 }
 }

-body {
-  padding: 50px;
-  font: 14px "Lucida Grande", Helvetica, Arial, sans-serif;
-}
-
-a {
-  color: #00B7FF;
-}

+import svelte from 'rollup-plugin-svelte';
+import commonjs from '@rollup/plugin-commonjs';
+import resolve from '@rollup/plugin-node-resolve';
+import livereload from 'rollup-plugin-livereload';
+import { terser } from 'rollup-plugin-terser';
+import css from 'rollup-plugin-css-only';
+
+const production = !process.env.ROLLUP_WATCH;
+
+function serve() {
+	let server;
+
+	function toExit() {
+		if (server) server.kill(0);
+	}
+
+	return {
+		writeBundle() {
+			if (server) return;
+			server = require('child_process').spawn('npm', ['run', 'start', '--', '--dev'], {
+				stdio: ['ignore', 'inherit', 'inherit'],
+				shell: true
+			});
+
+			process.on('SIGTERM', toExit);
+			process.on('exit', toExit);
+		}
+	};
+}
+
+export default {
+	input: 'src/main.js',
+	output: {
+		sourcemap: true,
+		format: 'iife',
+		name: 'app',
+		file: 'public/build/bundle.js'
+	},
+	plugins: [
+		svelte({
+			compilerOptions: {
+				// enable run-time checks when not in production
+				dev: !production
+			}
+		}),
+		// we'll extract any component CSS out into
+		// a separate file - better for performance
+		css({ output: 'bundle.css' }),
+
+		// If you have external dependencies installed from
+		// npm, you'll most likely need these plugins. In
+		// some cases you'll need additional configuration -
+		// consult the documentation for details:
+		// https://github.com/rollup/plugins/tree/master/packages/commonjs
+		resolve({
+			browser: true,
+			dedupe: ['svelte']
+		}),
+		commonjs(),
+
+		// In dev mode, call `npm run start` once
+		// the bundle has been generated
+		!production && serve(),
+
+		// Watch the `public` directory and refresh the
+		// browser on changes when not in production
+		!production && livereload('public'),
+
+		// If we're building for production (npm run build
+		// instead of npm run dev), minify
+		production && terser()
+	],
+	watch: {
+		clearScreen: false
+	}
+};

-var express = require('express');
-var router = express.Router();
-
-/* GET home page. */
-router.get('/', function(req, res, next) {
-  res.render('index', { title: 'Express' });
-});
-
-module.exports = router;

-var express = require('express');
-var router = express.Router();
-
-/* GET users listing. */
-router.get('/', function(req, res, next) {
-  res.send('respond with a resource');
-});
-
-module.exports = router;

+// @ts-check
+
+/** This script modifies the project to support TS code in .svelte files like:
+
+  <script lang="ts">
+  	export let name: string;
+  </script>
+ 
+  As well as validating the code for CI.
+  */
+
+/**  To work on this script:
+  rm -rf test-template template && git clone sveltejs/template test-template && node scripts/setupTypeScript.js test-template
+*/
+
+const fs = require("fs")
+const path = require("path")
+const { argv } = require("process")
+
+const projectRoot = argv[2] || path.join(__dirname, "..")
+
+// Add deps to pkg.json
+const packageJSON = JSON.parse(fs.readFileSync(path.join(projectRoot, "package.json"), "utf8"))
+packageJSON.devDependencies = Object.assign(packageJSON.devDependencies, {
+  "svelte-check": "^2.0.0",
+  "svelte-preprocess": "^4.0.0",
+  "@rollup/plugin-typescript": "^8.0.0",
+  "typescript": "^4.0.0",
+  "tslib": "^2.0.0",
+  "@tsconfig/svelte": "^2.0.0"
+})
+
+// Add script for checking
+packageJSON.scripts = Object.assign(packageJSON.scripts, {
+  "check": "svelte-check --tsconfig ./tsconfig.json"
+})
+
+// Write the package JSON
+fs.writeFileSync(path.join(projectRoot, "package.json"), JSON.stringify(packageJSON, null, "  "))
+
+// mv src/main.js to main.ts - note, we need to edit rollup.config.js for this too
+const beforeMainJSPath = path.join(projectRoot, "src", "main.js")
+const afterMainTSPath = path.join(projectRoot, "src", "main.ts")
+fs.renameSync(beforeMainJSPath, afterMainTSPath)
+
+// Switch the app.svelte file to use TS
+const appSveltePath = path.join(projectRoot, "src", "App.svelte")
+let appFile = fs.readFileSync(appSveltePath, "utf8")
+appFile = appFile.replace("<script>", '<script lang="ts">')
+appFile = appFile.replace("export let name;", 'export let name: string;')
+fs.writeFileSync(appSveltePath, appFile)
+
+// Edit rollup config
+const rollupConfigPath = path.join(projectRoot, "rollup.config.js")
+let rollupConfig = fs.readFileSync(rollupConfigPath, "utf8")
+
+// Edit imports
+rollupConfig = rollupConfig.replace(`'rollup-plugin-terser';`, `'rollup-plugin-terser';
+import sveltePreprocess from 'svelte-preprocess';
+import typescript from '@rollup/plugin-typescript';`)
+
+// Replace name of entry point
+rollupConfig = rollupConfig.replace(`'src/main.js'`, `'src/main.ts'`)
+
+// Add preprocessor
+rollupConfig = rollupConfig.replace(
+  'compilerOptions:',
+  'preprocess: sveltePreprocess({ sourceMap: !production }),\n\t\t\tcompilerOptions:'
+);
+
+// Add TypeScript
+rollupConfig = rollupConfig.replace(
+  'commonjs(),',
+  'commonjs(),\n\t\ttypescript({\n\t\t\tsourceMap: !production,\n\t\t\tinlineSources: !production\n\t\t}),'
+);
+fs.writeFileSync(rollupConfigPath, rollupConfig)
+
+// Add TSConfig
+const tsconfig = `{
+  "extends": "@tsconfig/svelte/tsconfig.json",
+
+  "include": ["src/**/*"],
+  "exclude": ["node_modules/*", "__sapper__/*", "public/*"]
+}`
+const tsconfigPath =  path.join(projectRoot, "tsconfig.json")
+fs.writeFileSync(tsconfigPath, tsconfig)
+
+// Add global.d.ts
+const dtsPath =  path.join(projectRoot, "src", "global.d.ts")
+fs.writeFileSync(dtsPath, `/// <reference types="svelte" />`)
+
+// Delete this script, but not during testing
+if (!argv[2]) {
+  // Remove the script
+  fs.unlinkSync(path.join(__filename))
+
+  // Check for Mac's DS_store file, and if it's the only one left remove it
+  const remainingFiles = fs.readdirSync(path.join(__dirname))
+  if (remainingFiles.length === 1 && remainingFiles[0] === '.DS_store') {
+    fs.unlinkSync(path.join(__dirname, '.DS_store'))
+  }
+
+  // Check if the scripts folder is empty
+  if (fs.readdirSync(path.join(__dirname)).length === 0) {
+    // Remove the scripts folder
+    fs.rmdirSync(path.join(__dirname))
+  }
+}
+
+// Adds the extension recommendation
+fs.mkdirSync(path.join(projectRoot, ".vscode"), { recursive: true })
+fs.writeFileSync(path.join(projectRoot, ".vscode", "extensions.json"), `{
+  "recommendations": ["svelte.svelte-vscode"]
+}
+`)
+
+console.log("Converted to TypeScript.")
+
+if (fs.existsSync(path.join(projectRoot, "node_modules"))) {
+  console.log("\nYou will need to re-run your dependency manager to get started.")
+}

-<h1><%= message %></h1>
-<h2><%= error.status %></h2>
-<pre><%= error.stack %></pre>

-<!DOCTYPE html>
-<html>
-  <head>
-    <title><%= title %></title>
-    <link rel='stylesheet' href='/stylesheets/style.css' />
-  </head>
-  <body>
-    <h1><%= title %></h1>
-    <p>Welcome to <%= title %></p>
-  </body>
-</html>