feat(cli): react vite template (#5969)

Part of react-vite use case.
Based on react-vite-websockets wing workshop.
resolves: [#5928](#5928)

## Checklist

- [ ] Title matches [Winglang's style guide](https://www.winglang.io/contributing/start-here/pull_requests#how-are-pull-request-titles-formatted)
- [ ] Description explains motivation and solution
- [ ] Tests added (always)
- [ ] Docs updated (only required for features)
- [ ] Added `pr/e2e-full` label if this feature requires end-to-end testing

*By submitting this pull request, I confirm that my contribution is made under the terms of the [Wing Cloud Contribution License](https://github.com/winglang/wing/blob/main/CONTRIBUTION_LICENSE.md)*.

apps/wing/project-templates/wing/react-vite/backend/broadcaster.w

@@ -0,0 +1,37 @@
+bring cloud;
+bring websockets;
+bring ui;
+
+pub class Broadcaster {
+  pub url: str;
+  server: websockets.WebSocket;
+  clients: cloud.Bucket;
+
+  new() {
+    this.server = new websockets.WebSocket(name: "counter_updates") as "counter_updates";
+    this.url = this.server.url;
+    this.clients = new cloud.Bucket();
+
+    // upon connection, add the client to the list
+    this.server.onConnect(inflight(id: str): void => {
+      this.clients.put(id, "");
+    });
+
+    // upon disconnect, remove the client from the list
+    this.server.onDisconnect(inflight(id: str): void => {
+      this.clients.delete(id);
+    });
+
+    // Custom resource display in Console UI
+    // hide the websockets server and cloud bucket resources from the Console UI
+    nodeof(this.server).hidden = true;
+    nodeof(this.clients).hidden = true;
+  }
+
+  // send a message to all clients
+  pub inflight broadcast(messgae: str) {
+    for id in this.clients.list() {
+      this.server.sendMessage(id, messgae);
+    }
+  }
+}

apps/wing/project-templates/wing/react-vite/backend/main.w

@@ -0,0 +1,47 @@
+bring cloud;
+bring expect;
+bring vite;
+bring http;
+bring "./broadcaster.w" as broadcaster;
+
+// Winglang doesn't have a built-in support for __dirname yet, so we use a workaround to get the current directory.
+// @see tracking issue: https://github.com/winglang/wing/issues/3736
+class Utils {
+  extern "utils.js" pub static __dirname(): str;
+}
+
+let myBroadcaster = new broadcaster.Broadcaster() as "Broadcaster";
+let api = new cloud.Api(cors: true);
+let counter = new cloud.Counter();
+
+let website = new vite.Vite(
+  root: "{Utils.__dirname()}/../frontend",
+  publicEnv: {
+    TITLE: "Wing + Vite + React",
+    API_URL: api.url,
+    WS_URL: myBroadcaster.url
+  }
+) as "Vite Website"; 
+
+api.get("/counter", inflight () => {
+  return {
+    body: "{counter.peek()}"
+  };
+});
+
+api.post("/counter", inflight () => {
+  let prev = counter.inc();
+  myBroadcaster.broadcast("refresh");
+  return {
+    body: "{prev + 1}"
+  };
+});
+
+test "api counter increment and get" {
+  log("counter initial value: {counter.peek()}");
+  assert(counter.peek() == 0);
+  http.post(api.url + "/counter");
+  let res = http.get(api.url + "/counter");
+  log("counter value after increment: {res.body}");
+  assert(res.body == "1");
+}

apps/wing/project-templates/wing/react-vite/backend/package.json

@@ -0,0 +1,11 @@
+{
+  "name": "my-wing-app",
+  "version": "0.0.0",
+  "description": "A description of my Wing application",
+  "author": "Your Name",
+  "license": "MIT",
+  "wing": true,
+  "dependencies": {
+    "@winglibs/vite": "^0.1.2"
+  }
+}

apps/wing/project-templates/wing/react-vite/backend/utils.js

@@ -0,0 +1 @@
+exports.__dirname = () => __dirname;

apps/wing/project-templates/wing/react-vite/frontend/.eslintrc.cjs

@@ -0,0 +1,18 @@
+module.exports = {
+  root: true,
+  env: { browser: true, es2020: true },
+  extends: [
+    'eslint:recommended',
+    'plugin:@typescript-eslint/recommended',
+    'plugin:react-hooks/recommended',
+  ],
+  ignorePatterns: ['dist', '.eslintrc.cjs'],
+  parser: '@typescript-eslint/parser',
+  plugins: ['react-refresh'],
+  rules: {
+    'react-refresh/only-export-components': [
+      'warn',
+      { allowConstantExport: true },
+    ],
+  },
+}

apps/wing/project-templates/wing/react-vite/frontend/.gitignore

@@ -0,0 +1,24 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+dist
+dist-ssr
+*.local
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+.DS_Store
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?

apps/wing/project-templates/wing/react-vite/frontend/README.md

@@ -0,0 +1,30 @@
+# React + TypeScript + Vite
+
+This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
+
+Currently, two official plugins are available:
+
+- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react/README.md) uses [Babel](https://babeljs.io/) for Fast Refresh
+- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react-swc) uses [SWC](https://swc.rs/) for Fast Refresh
+
+## Expanding the ESLint configuration
+
+If you are developing a production application, we recommend updating the configuration to enable type aware lint rules:
+
+- Configure the top-level `parserOptions` property like this:
+
+```js
+export default {
+  // other rules...
+  parserOptions: {
+    ecmaVersion: 'latest',
+    sourceType: 'module',
+    project: ['./tsconfig.json', './tsconfig.node.json'],
+    tsconfigRootDir: __dirname,
+  },
+}
+```
+
+- Replace `plugin:@typescript-eslint/recommended` to `plugin:@typescript-eslint/recommended-type-checked` or `plugin:@typescript-eslint/strict-type-checked`
+- Optionally add `plugin:@typescript-eslint/stylistic-type-checked`
+- Install [eslint-plugin-react](https://github.com/jsx-eslint/eslint-plugin-react) and add `plugin:react/recommended` & `plugin:react/jsx-runtime` to the `extends` list

apps/wing/project-templates/wing/react-vite/frontend/index.html

@@ -0,0 +1,13 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <link rel="icon" type="image/svg+xml" href="/vite.svg" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Vite + React + TS</title>
+  </head>
+  <body>
+    <div id="root"></div>
+    <script type="module" src="/src/main.tsx"></script>
+  </body>
+</html>

apps/wing/project-templates/wing/react-vite/frontend/package.json

@@ -0,0 +1,29 @@
+{
+  "name": "frontend",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc && vite build",
+    "lint": "eslint . --ext ts,tsx --report-unused-disable-directives --max-warnings 0",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0",
+    "react-use-websocket": "^4.7.0"
+  },
+  "devDependencies": {
+    "@types/react": "^18.2.56",
+    "@types/react-dom": "^18.2.19",
+    "@typescript-eslint/eslint-plugin": "^7.0.2",
+    "@typescript-eslint/parser": "^7.0.2",
+    "@vitejs/plugin-react": "^4.2.1",
+    "eslint": "^8.56.0",
+    "eslint-plugin-react-hooks": "^4.6.0",
+    "eslint-plugin-react-refresh": "^0.4.5",
+    "typescript": "^5.2.2",
+    "vite": "^5.1.4"
+  }
+}

apps/wing/project-templates/wing/react-vite/frontend/src/App.css

@@ -0,0 +1,42 @@
+#root {
+  max-width: 1280px;
+  margin: 0 auto;
+  padding: 2rem;
+  text-align: center;
+}
+
+.logo {
+  height: 6em;
+  padding: 1.5em;
+  will-change: filter;
+  transition: filter 300ms;
+}
+.logo:hover {
+  filter: drop-shadow(0 0 2em #646cffaa);
+}
+.logo.react:hover {
+  filter: drop-shadow(0 0 2em #61dafbaa);
+}
+
+@keyframes logo-spin {
+  from {
+    transform: rotate(0deg);
+  }
+  to {
+    transform: rotate(360deg);
+  }
+}
+
+@media (prefers-reduced-motion: no-preference) {
+  a:nth-of-type(2) .logo {
+    animation: logo-spin infinite 20s linear;
+  }
+}
+
+.card {
+  padding: 2em;
+}
+
+.read-the-docs {
+  color: #888;
+}

apps/wing/project-templates/wing/react-vite/frontend/src/App.tsx

@@ -0,0 +1,59 @@
+import { useState, useEffect } from 'react'
+import reactLogo from './assets/react.svg'
+import viteLogo from '/vite.svg'
+import './App.css'
+import useWebSocket from 'react-use-websocket';
+
+const API_URL = window.wing.env.API_URL;
+const WS_URL = window.wing.env.WS_URL;
+
+function App() {
+  const [count, setCount] = useState("0");
+  const incrementCount = async () => {
+    const response = await fetch(`${API_URL}/counter`, {
+      method: "POST"
+    });
+    setCount(await response.text()); 
+  }
+  const updateCount = async () => {
+    const response = await fetch(`${API_URL}/counter`);
+    setCount(await response.text());
+  }
+
+  useWebSocket(WS_URL, {
+    onMessage: () => {
+      updateCount();
+    }
+  });
+
+  useEffect(() => {
+    updateCount();
+  }, []);
+
+  return (
+    <>
+      <div>
+        <a href="https://vitejs.dev" target="_blank">
+          <img src={viteLogo} className="logo" alt="Vite logo" />
+        </a>
+        <a href="https://react.dev" target="_blank">
+          <img src={reactLogo} className="logo react" alt="React logo"/>
+        </a>
+      </div>
+      <h1>{window.wing.env.TITLE}</h1>
+      <div className="card">
+        <button key={count} onClick={incrementCount}>
+          count is {count}
+        </button>
+        <p>
+          Edit <code>src/App.tsx</code> and save to test HMR
+        </p>
+      </div>
+      <p className="read-the-docs">
+        Click on the Vite and React logos to learn more
+      </p>
+    </>
+  )
+}
+
+export default App;

apps/wing/project-templates/wing/react-vite/frontend/src/index.css

@@ -0,0 +1,68 @@
+:root {
+  font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
+  line-height: 1.5;
+  font-weight: 400;
+
+  color-scheme: light dark;
+  color: rgba(255, 255, 255, 0.87);
+  background-color: #242424;
+
+  font-synthesis: none;
+  text-rendering: optimizeLegibility;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+a {
+  font-weight: 500;
+  color: #646cff;
+  text-decoration: inherit;
+}
+a:hover {
+  color: #535bf2;
+}
+
+body {
+  margin: 0;
+  display: flex;
+  place-items: center;
+  min-width: 320px;
+  min-height: 100vh;
+}
+
+h1 {
+  font-size: 3.2em;
+  line-height: 1.1;
+}
+
+button {
+  border-radius: 8px;
+  border: 1px solid transparent;
+  padding: 0.6em 1.2em;
+  font-size: 1em;
+  font-weight: 500;
+  font-family: inherit;
+  background-color: #1a1a1a;
+  cursor: pointer;
+  transition: border-color 0.25s;
+}
+button:hover {
+  border-color: #646cff;
+}
+button:focus,
+button:focus-visible {
+  outline: 4px auto -webkit-focus-ring-color;
+}
+
+@media (prefers-color-scheme: light) {
+  :root {
+    color: #213547;
+    background-color: #ffffff;
+  }
+  a:hover {
+    color: #747bff;
+  }
+  button {
+    background-color: #f9f9f9;
+  }
+}