nulang/playground/index.html at next/cross-node-routing · ghzhost/nulang · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Nulang Playground</title>
<style>
  * { box-sizing: border-box; margin: 0; padding: 0; }
  body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: #1a1a2e; color: #e0e0e0; display: flex; flex-direction: column; height: 100vh; }
  header { background: #16213e; padding: 12px 20px; display: flex; align-items: center; gap: 12px; border-bottom: 1px solid #0f3460; flex-wrap: wrap; }
  header h1 { font-size: 20px; color: #e94560; margin-right: auto; }
  header select, header button { padding: 6px 12px; border-radius: 4px; border: 1px solid #0f3460; background: #0f3460; color: #e0e0e0; cursor: pointer; font-size: 13px; }
  header button:hover { background: #1a4a8a; }
  header button.run { background: #e94560; border-color: #e94560; font-weight: bold; }
  header button.run:hover { background: #ff6b81; }
  header button.compile { background: #0f3460; border-color: #0f3460; }
  header button.compile:hover { background: #1a4a8a; }
  header button.check { background: #0f3460; border-color: #0f3460; }
  header button.check:hover { background: #1a4a8a; }
  header button.secondary { background: #233554; border-color: #233554; }
  header button.secondary:hover { background: #2d4570; }
  main { display: flex; flex: 1; overflow: hidden; }
  #editor { flex: 1; height: 100%; min-width: 0; }
  #output { width: 380px; background: #0d1117; border-left: 1px solid #0f3460; padding: 16px; overflow-y: auto; font-family: 'Fira Code', 'Cascadia Code', monospace; font-size: 13px; white-space: pre-wrap; word-break: break-all; display: flex; flex-direction: column; }
  #output .out { color: #c9d1d9; }
  #output .err { color: #f85149; }
  #output .info { color: #58a6ff; }
  #output .empty { color: #484f58; font-style: italic; }
  #output-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; padding-bottom: 8px; border-bottom: 1px solid #0f3460; }
  #output-header h3 { font-size: 14px; font-weight: 600; color: #e0e0e0; }
  #output-toolbar { display: flex; gap: 6px; }
  #output-toolbar button { padding: 4px 8px; font-size: 11px; border-radius: 3px; border: 1px solid #0f3460; background: #16213e; color: #8b949e; cursor: pointer; }
  #output-toolbar button:hover { background: #233554; color: #e0e0e0; }
  #status { font-size: 12px; color: #58a6ff; padding: 0 8px; }
  .cm-editor { height: 100%; font-size: 14px; }
  .cm-focused { outline: none; }
  .cm-lineNumbers { min-width: 3rem; padding: 0 12px 0 8px; color: #484f58; }
  .cm-gutters { background: #16213e; border-right: 1px solid #0f3460; }
  @media (max-width: 768px) {
    main { flex-direction: column; }
    #output { width: 100%; height: 300px; border-left: none; border-top: 1px solid #0f3460; }
    header { flex-wrap: wrap; }
    header h1 { margin-right: 0; margin-bottom: 8px; width: 100%; }
  }
  .toast { position: fixed; bottom: 24px; right: 24px; background: #16213e; color: #e0e0e0; padding: 12px 20px; border-radius: 6px; border: 1px solid #0f3460; box-shadow: 0 4px 12px rgba(0,0,0,0.3); z-index: 1000; animation: slideIn 0.3s ease; }
  @keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
  .toast.success { border-color: #3fb950; }
  .toast.error { border-color: #f85149; }
</style>
<!-- CodeMirror 6 with Lezer -->
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@codemirror/theme-one-dark@6/themes/one-dark.css">
<script type="module">
import { EditorView, basicSetup, lineNumbers, highlightActiveLineGutter, updateListener } from "https://cdn.jsdelivr.net/npm/codemirror@6/view/+esm";
import { keymap } from "https://cdn.jsdelivr.net/npm/@codemirror/view@6/+esm";
import { indentWithTab } from "https://cdn.jsdelivr.net/npm/@codemirror/commands@6/+esm";
import { defaultKeymap, history, historyKeymap } from "https://cdn.jsdelivr.net/npm/@codemirror/commands@6/+esm";
import { bracketMatching } from "https://cdn.jsdelivr.net/npm/@codemirror/matchbrackets@6/+esm";
import { closeBrackets, closeBracketsKeymap } from "https://cdn.jsdelivr.net/npm/@codemirror/autocomplete@6/+esm";
import { syntaxHighlighting, defaultHighlightStyle, tags as t } from "https://cdn.jsdelivr.net/npm/@codemirror/language@6/+esm";
import { LRLanguage, LanguageSupport } from "https://cdn.jsdelivr.net/npm/@codemirror/language@6/+esm";
import { LezerHighlightStyle } from "https://cdn.jsdelivr.net/npm/@lezer/highlight@1/+esm";
import { parser } from "./nulang-grammar.js";

// Syntax highlighting style for Nulang
const nulangHighlightStyle = LezerHighlightStyle.define([
  { tag: t.comment, color: "#546e7a" },
  { tag: t.string, color: "#c3e88d" },
  { tag: t.keyword, color: "#c792ea" },
  { tag: t.builtin, color: "#82aaff" },
  { tag: t.number, color: "#f78c6c" },
  { tag: t.operator, color: "#89ddff" },
  { tag: t.variableName, color: "#e0e0e0" },
  { tag: t.function(t.variableName), color: "#82aaff" },
  { tag: t.typeName, color: "#ffcb6b" },
  { tag: t.modifier, color: "#c792ea" },
  { tag: t.propertyName, color: "#80cbc4" },
  { tag: t.definition(t.variableName), color: "#82aaff" },
  { tag: t.labelName, color: "#89ddff" },
]);

// Create the language support
const nulangLanguage = LRLanguage.define({
  name: "nulang",
  parser: parser.configure({
    props: [
      nulangLanguage.data.of({
        closeBrackets: { brackets: ["(", "[", "{", "'", '"'] },
        indentOnInput: /^\s*(?:case|default|else|catch|finally)\b/
      })
    ]
  })
});

const nulangSupport = new LanguageSupport(nulangLanguage, [
  syntaxHighlighting(nulangHighlightStyle)
]);

// Configure editor with line numbers and active line highlighting
const editor = new EditorView({
  state: EditorState.create({
    doc: 'perform IO.print("Hello, Nulang!")',
    extensions: [
      basicSetup,
      lineNumbers(),
      highlightActiveLineGutter(),
      keymap.of([...defaultKeymap, ...historyKeymap, ...closeBracketsKeymap, indentWithTab]),
      nulangSupport,
      EditorView.lineWrapping,
      EditorState.tabSize.of(4),
      updateListener.of(v => { if (v.docChanged) localStorage.setItem('nulang-playground-code', v.state.doc.toString()); })
    ]
  }),
  parent: document.getElementById('editor')
});

// Keyboard shortcut: Ctrl+Enter to run
editor.dispatch({
  effects: EditorView.addKeyMap.of([
    { key: "Ctrl-Enter", run: () => { run(); return true; } },
    { key: "Mod-Enter", run: () => { run(); return true; } } // macOS
  ])
});

// Example code samples
const examples = {
  "": "— Examples —",
  "hello": 'perform IO.print("Hello, Nulang!")',
  "fib": "let fib = fn(n) { if n <= 1 then n else fib(n - 1) + fib(n - 2) } in fib(10)",
  "option": "type Option[T] = Some(T) | None\nlet x = Some(42) in match x with { | Some(n) => n | None => 0 }",
  "pipe": "let add = fn(x, y) { x + y } in 5 |> add(3)",
  "strlen": 'perform String.length("hello")',
  "strcat": 'perform String.concat("Hello", " World")',
  "debug": 'perform Debug.inspect("x", 42 * 2)',
  "match": "match 42 { case 1 => 10 case 42 => 100 case _ => 0 }",
  "closure": "let inc = fn(n) { n + 1 } in inc(41)",
  "log": 'perform IO.log("info", "server started")',
  "actor": "actor Counter { state count = 0 behavior Inc { perform IO.print(count); count := count + 1 } }\nspawn Counter() as \"counter\"\nsend \"counter\" Inc()",
  "effect": "effect Log { fn info(msg: String) }\nlet logHandler = handler { | Log.info(msg) => perform IO.print(msg) }\nhandle { perform Log.info(\"Hello from effect!\") } with logHandler",
  "async": "perform LLM.ask({ model: \"llama3\", messages: [{ role: \"user\", content: \"Hello!\" }] })",
  "crdt": "let counter = CRDT.GCounter()\ncounter.increment()\ncounter.increment()\nperform IO.print(counter.value())"
};

// Populate dropdown
const select = document.getElementById('examples');
for (const [key, value] of Object.entries(examples)) {
  const option = document.createElement('option');
  option.value = key;
  option.textContent = key === "" ? "— Examples —" : key.charAt(0).toUpperCase() + key.slice(1);
  select.appendChild(option);
}

// Example dropdown change handler
select.addEventListener('change', function() {
  if (this.value && examples[this.value]) {
    editor.dispatch({ changes: { from: 0, to: editor.state.doc.length, insert: examples[this.value] } });
  }
});

// Load from localStorage or URL hash
function loadInitialCode() {
  if (location.hash) {
    try {
      const code = decodeURIComponent(location.hash.slice(1));
      if (code) return code;
    } catch(e) {}
  }
  const saved = localStorage.getItem('nulang-playground-code');
  if (saved) return saved;
  return null;
}

const initialCode = loadInitialCode();
if (initialCode) {
  editor.dispatch({ changes: { from: 0, to: editor.state.doc.length, insert: initialCode } });
}

// Save to localStorage on change
editor.state.doc.onChange = () => {
  localStorage.setItem('nulang-playground-code', editor.state.doc.toString());
};

// Run function
async function run() {
  const code = editor.state.doc.toString();
  const out = document.getElementById('output-content');
  const status = document.getElementById('status');
  out.innerHTML = '<span class="info">Running...</span>';
  status.textContent = 'running...';
  status.style.color = '#58a6ff';

  try {
    const resp = await fetch('/run', {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ code }),
    });
    const data = await resp.json();
    let html = '';
    if (data.stdout) html += '<span class="out">' + escapeHtml(data.stdout) + '</span>';
    if (data.stderr) html += '<span class="err">' + escapeHtml(data.stderr) + '</span>';
    if (!data.stdout && !data.stderr) html = '<span class="empty">(no output)</span>';
    out.innerHTML = html;
    status.textContent = data.ok ? 'ok' : 'error';
    status.style.color = data.ok ? '#3fb950' : '#f85149';
    showToast(data.ok ? 'Execution completed' : 'Execution failed', data.ok);
  } catch(e) {
    out.innerHTML = '<span class="err">Connection error: ' + escapeHtml(e.message) + '</span>';
    status.textContent = 'offline';
    status.style.color = '#f85149';
    showToast('Connection error: ' + e.message, false);
  }
}

// Compile function
async function compile() {
  const code = editor.state.doc.toString();
  const out = document.getElementById('output-content');
  const status = document.getElementById('status');
  out.innerHTML = '<span class="info">Compiling...</span>';
  status.textContent = 'compiling...';
  status.style.color = '#58a6ff';

  try {
    const target = document.getElementById('compile-target').value;
    const resp = await fetch('/compile', {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ code, target }),
    });
    const data = await resp.json();
    let html = '';
    if (data.stdout) html += '<span class="out">' + escapeHtml(data.stdout) + '</span>';
    if (data.stderr) html += '<span class="err">' + escapeHtml(data.stderr) + '</span>';
    if (!data.stdout && !data.stderr) html = '<span class="empty">(no output)</span>';
    out.innerHTML = html;
    status.textContent = data.ok ? 'ok' : 'error';
    status.style.color = data.ok ? '#3fb950' : '#f85149';
    showToast(data.ok ? 'Compilation completed' : 'Compilation failed', data.ok);
  } catch(e) {
    out.innerHTML = '<span class="err">Connection error: ' + escapeHtml(e.message) + '</span>';
    status.textContent = 'offline';
    status.style.color = '#f85149';
    showToast('Connection error: ' + e.message, false);
  }
}

// Check function
async function check() {
  const code = editor.state.doc.toString();
  const out = document.getElementById('output-content');
  const status = document.getElementById('status');
  out.innerHTML = '<span class="info">Type checking...</span>';
  status.textContent = 'checking...';
  status.style.color = '#58a6ff';

  try {
    const resp = await fetch('/check', {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ code }),
    });
    const data = await resp.json();
    let html = '';
    if (data.stdout) html += '<span class="out">' + escapeHtml(data.stdout) + '</span>';
    if (data.stderr) html += '<span class="err">' + escapeHtml(data.stderr) + '</span>';
    if (!data.stdout && !data.stderr) html = '<span class="empty">(no output)</span>';
    out.innerHTML = html;
    status.textContent = data.ok ? 'ok' : 'error';
    status.style.color = data.ok ? '#3fb950' : '#f85149';
    showToast(data.ok ? 'Type check passed' : 'Type check failed', data.ok);
  } catch(e) {
    out.innerHTML = '<span class="err">Connection error: ' + escapeHtml(e.message) + '</span>';
    status.textContent = 'offline';
    status.style.color = '#f85149';
    showToast('Connection error: ' + e.message, false);
  }
}

// Share function
function share() {
  const code = editor.state.doc.toString();
  const url = location.origin + location.pathname + '#' + encodeURIComponent(code);
  navigator.clipboard.writeText(url).then(() => {
    showToast('Share URL copied to clipboard!', true);
  }).catch(() => {
    showToast('Failed to copy URL', false);
  });
}

// Clear output
function clearOutput() {
  const out = document.getElementById('output-content');
  out.innerHTML = '<span class="empty">Output appears here — click ▶ Run</span>';
  document.getElementById('status').textContent = '';
}

// Copy output
function copyOutput() {
  const out = document.getElementById('output-content');
  const text = out.innerText || out.textContent;
  if (text && text !== 'Output appears here — click ▶ Run') {
    navigator.clipboard.writeText(text).then(() => {
      showToast('Output copied!', true);
    });
  } else {
    showToast('Nothing to copy', false);
  }
}

// Toast notifications
function showToast(message, success) {
  const existing = document.querySelector('.toast');
  if (existing) existing.remove();
  const toast = document.createElement('div');
  toast.className = 'toast ' + (success ? 'success' : 'error');
  toast.textContent = message;
  document.body.appendChild(toast);
  setTimeout(() => {
    toast.style.animation = 'slideIn 0.3s ease reverse';
    setTimeout(() => toast.remove(), 300);
  }, 3000);
}

function escapeHtml(s) { return s.replace(/&/g,'&').replace(/</g,'<').replace(/>/g,'>'); }

// Wire up button clicks and select changes
document.getElementById('btn-run').addEventListener('click', run);
document.getElementById('btn-compile').addEventListener('click', compile);
document.getElementById('btn-check').addEventListener('click', check);
document.getElementById('btn-share').addEventListener('click', share);
document.getElementById('btn-clear').addEventListener('click', clearOutput);
document.getElementById('btn-copy').addEventListener('click', copyOutput);
document.getElementById('btn-clear-out').addEventListener('click', clearOutput);
document.getElementById('examples').addEventListener('change', function() {
  if (this.value && examples[this.value]) {
    editor.dispatch({ changes: { from: 0, to: editor.state.doc.length, insert: examples[this.value] } });
  }
});
</script>
</head>
<body>
<header>
  <h1>Nulang Playground</h1>
  <select id="examples"></select>
  <button class="run" id="btn-run">▶ Run (Ctrl+Enter)</button>
  <select id="compile-target" style="min-width: 120px;">
    <option value="native">native</option>
    <option value="riscv64">riscv64</option>
    <option value="ptx">ptx</option>
  </select>
  <button class="compile" id="btn-compile">⚙ Compile</button>
  <button class="check" id="btn-check">✓ Check</button>
  <button class="secondary" id="btn-share">🔗 Share</button>
  <button class="secondary" id="btn-clear">🗑 Clear</button>
  <span id="status"></span>
</header>
<main>
  <div id="editor"></div>
  <div id="output">
    <div id="output-header">
      <h3>Output</h3>
      <div id="output-toolbar">
        <button id="btn-copy">📋 Copy</button>
        <button id="btn-clear-out">🗑 Clear</button>
      </div>
    </div>
    <div id="output-content"><span class="empty">Output appears here — click ▶ Run</span></div>
  </div>
</main>
</body>