{{template "head" .}}
{{template "topbar" .}}
<div class="deck">
  <div class="pane-l-col">
    <div class="float pane-l-head">
      <div class="editor-head">
        <input id="title" placeholder="Title (optional)">
        <select id="language">
          <option value="">auto</option>
          <option>go</option><option>python</option><option>javascript</option>
          <option>rust</option><option>c</option><option>cpp</option><option>java</option>
          <option>bash</option><option>sql</option><option>yaml</option><option>json</option>
          <option>markdown</option><option>text</option>
        </select>
        <button class="btn btn-icon" id="reguess" title="Re-detect language" type="button">⟳</button>
      </div>
    </div>
    <div class="float editor-wrap">
      <div class="gutter" id="gutter">1</div>
      <textarea class="editor" id="content" placeholder="Paste your code, text, or notes here…" spellcheck="false"></textarea>
    </div>
    <div class="created-banner" id="created"></div>
    <div class="actionbar">
      <span class="hint">Ctrl+Enter to create</span>
      <div class="spacer" style="flex:1"></div>
      <button class="btn" id="create">Create ⇧</button>
    </div>
  </div>

  <div class="pane-r">
    <div class="float side-section">
      <h3>Expiry</h3>
      <div class="seg">
        <label><input type="radio" name="exp" value=""> Never</label>
        <label><input type="radio" name="exp" value="1h"> 1 hour</label>
        <label><input type="radio" name="exp" value="24h"> 1 day</label>
        <label><input type="radio" name="exp" value="168h" checked> 1 week</label>
        <label><input type="radio" name="exp" value="720h"> 30 days</label>
      </div>
    </div>
    <div class="float side-section">
      <h3>Protection</h3>
      <label class="toggle"><input type="checkbox" id="haspw"> Password lock</label>
      <input type="password" id="password" class="pwinput" placeholder="Password" style="display:none; margin: 6px 8px 0; width: auto;">
      <label class="toggle"><input type="checkbox" id="burn"> Burn after read</label>
      <label class="toggle"><input type="checkbox" id="unlisted"> Unlisted</label>
    </div>
    <div class="float side-section">
      <h3>Custom URL</h3>
      <div class="row" style="justify-content:flex-start; gap:6px; align-items:center;"><span>/</span><input type="text" id="custom" placeholder="my-snippet" style="text-align:left; flex:1; min-width:0;"></div>
    </div>
    <div class="float side-section" id="result-card" style="display:none">
      <h3>Result</h3>
      <div class="hint" id="result" style="word-break:break-all">empty</div>
    </div>
  </div>
</div>
<script>
const $ = id => document.getElementById(id);
const content = $('content'), gutter = $('gutter');

function updateGutter() {
  const lines = content.value.split('\n').length;
  let s = '';
  for (let i = 1; i <= Math.max(lines, 1); i++) s += i + '\n';
  gutter.textContent = s;
}
content.addEventListener('input', updateGutter);
updateGutter();

$('haspw').addEventListener('change', e => { $('password').style.display = e.target.checked ? 'block' : 'none'; });

let guessed = ''; // last auto-detected language, '' = user override

function showResult(html, isError) {
  $('result').innerHTML = html;
  $('result').dataset.token = isError ? '' : ($('result').dataset.token || '');
  $('result-card').style.display = 'block';
}
function defaultFilename(lang) {
  const names = {
    python: 'Python.py', go: 'main.go', javascript: 'script.js', rust: 'main.rs',
    c: 'main.c', cpp: 'main.cpp', java: 'Main.java', bash: 'script.sh',
    sql: 'query.sql', yaml: 'config.yaml', json: 'data.json',
    markdown: 'notes.md', text: 'Text.txt',
  };
  return names[lang] || '';
}
// fill default filename when title is still blank
function maybeSetDefaultTitle(lang) {
  const title = $('title');
  if (lang && !title.value.trim()) {
    const fn = defaultFilename(lang);
    if (fn) title.value = fn;
  }
}

async function guessLang() {
  if (!content.value.trim()) return;
  try {
    const res = await fetch('/api/guess-language', {
      method: 'POST',
      headers: {'Content-Type': 'application/json'},
      body: JSON.stringify({content: content.value}),
    });
    const data = await res.json();
    if (res.ok && data.language) {
      guessed = data.language;
      $('language').value = data.language;
      maybeSetDefaultTitle(data.language);
    }
  } catch(e) {}
}

// refresh button: always re-detect, even if user picked something
$('reguess').addEventListener('click', guessLang);

// auto-guess when pasting into the editor
content.addEventListener('paste', () => setTimeout(guessLang, 0));

async function create() {
  const body = {
    content: content.value,
    title: $('title').value || null,
    language: $('language').value || null,
    custom_slug: $('custom').value || null,
    burn_after_read: $('burn').checked,
  };
  if ($('haspw').checked) body.password = $('password').value;
  const exp = document.querySelector('input[name="exp"]:checked').value;
  if (exp) body.expires_in = exp;

  const res = await fetch('/api/pastes', {
    method: 'POST',
    headers: {'Content-Type': 'application/json'},
    body: JSON.stringify(body),
  });
  const data = await res.json();
  if (!res.ok) {
    showResult('Error: ' + (data.error || res.status), true);
    return;
  }
  const url = location.origin + '/' + (data.custom_slug || data.id);
  showResult('<a href="' + url + '">' + url + '</a>', false);
  $('result').dataset.token = data.deletion_token || '';
  try { navigator.clipboard.writeText(url); } catch(e) {}
  // show the paste
  location.href = '/' + data.id + '?created=1&token=' + encodeURIComponent(data.deletion_token || '');
}
$('create').addEventListener('click', create);
document.addEventListener('keydown', e => {
  if ((e.ctrlKey || e.metaKey) && e.key === 'Enter') { e.preventDefault(); create(); }
});
</script>
{{template "foot" .}}