NaturalMath2LaTeX/index.html at main · PEXEL2002/NaturalMath2LaTeX · GitHub

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<!doctype html>
<html lang="pl">
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>NaturalMath2LaTeX</title>
  <script src="https://cdn.tailwindcss.com"></script>
  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/LaTeX@0.16.11/dist/LaTeX.min.css">
  <script defer src="https://cdn.jsdelivr.net/npm/LaTeX@0.16.11/dist/LaTeX.min.js"></script>
</head>
<body class="h-screen overflow-hidden bg-slate-100 text-slate-900">
  <main class="mx-auto flex h-full max-w-7xl flex-col p-4 sm:p-6 lg:p-8">
    <header class="mb-6">
        <a href="https://github.com/PEXEL2002/NaturalMath2LaTeX" target="_blank"><h1 class="text-3xl font-bold tracking-tight">NaturalMath2LaTeX</h1></a>
      <p class="mt-2 text-sm text-slate-600">Przekształć zapis matematyczny na kod LaTeX z wizualizacją wyniku.</p>
    </header>

    <section class="grid flex-1 min-h-0 gap-4 md:grid-cols-2">
      <div class="flex h-full min-h-0 flex-col rounded-2xl border border-slate-200 bg-white p-4 shadow-sm">
        <div class="mb-3 flex items-center justify-between gap-3">
          <h2 class="text-lg font-semibold">1. Wejście</h2>
        </div>

        <label for="input" class="mb-2 block text-sm font-medium text-slate-700">Treść do konwersji</label>
        <textarea id="input" rows="10" class="min-h-0 w-full flex-1 rounded-xl border border-slate-300 bg-slate-50 p-3 font-mono text-sm outline-none transition focus:border-indigo-500 focus:ring-2 focus:ring-indigo-200" placeholder="Np. f(x) = x dla x >=0; -x dla x <0">f(x) = x dla x &gt;=0; -x dla x &lt;0</textarea>

        <div class="mt-4 flex flex-wrap items-center gap-3">
          <button id="convertBtn" class="inline-flex items-center rounded-xl bg-indigo-600 px-4 py-2.5 text-sm font-semibold text-white transition hover:bg-indigo-700 disabled:cursor-not-allowed disabled:opacity-60">
            Konwertuj
          </button>
          <button id="exampleBtn" class="inline-flex items-center rounded-xl border border-slate-300 bg-white px-4 py-2.5 text-sm font-semibold text-slate-700 transition hover:bg-slate-50">
            Wstaw przykład
          </button>
          <span id="status" class="text-sm text-slate-500"></span>
        </div>

        <div id="errorBox" class="mt-4 hidden rounded-xl border border-red-200 bg-red-50 p-3 text-sm text-red-700"></div>
      </div>

      <div class="flex h-full min-h-0 flex-col rounded-2xl border border-slate-200 bg-white p-4 shadow-sm">
        <div class="mb-3 flex items-center justify-between gap-3">
          <h2 class="text-lg font-semibold">2. Surowy LaTeX</h2>
          <div class="flex items-center gap-2">
            <button id="copyBtn" class="inline-flex items-center rounded-xl border border-slate-300 bg-white px-3 py-2 text-xs font-semibold text-slate-700 transition hover:bg-slate-50 disabled:cursor-not-allowed disabled:opacity-60">
              Kopiuj LaTeX
            </button>

          </div>
        </div>
        <pre id="latexRaw" class="min-h-0 flex-1 overflow-auto rounded-xl bg-slate-950 p-4 font-mono text-sm whitespace-pre-wrap break-words text-slate-100">Tutaj pojawi się surowy tekst LaTeX...</pre>
      </div>
    </section>

    <section class="mt-4 flex min-h-0 flex-[0.9] flex-col rounded-2xl border border-slate-200 bg-white p-4 shadow-sm">
      <div class="mb-3 flex items-center justify-between gap-3">
        <h2 class="text-lg font-semibold">3. Podgląd LaTeX</h2>

      </div>
      <div id="LaTeXPreview" class="min-h-0 flex-1 overflow-x-auto rounded-xl bg-slate-50 p-4"></div>
    </section>
  </main>

  <script>
    const API_URL = window.location.protocol.startsWith('http')
      ? `${window.location.origin}/api/convert`
      : 'http://localhost:7070/api/convert';

    const inputEl = document.getElementById('input');
    const convertBtn = document.getElementById('convertBtn');
    const exampleBtn = document.getElementById('exampleBtn');
    const copyBtn = document.getElementById('copyBtn');
    const statusEl = document.getElementById('status');
    const errorBox = document.getElementById('errorBox');
    const latexRaw = document.getElementById('latexRaw');
    const LaTeXPreview = document.getElementById('LaTeXPreview');

    const exampleText = 'f(x) = x dla x >=0; -x dla x <0';

    function setStatus(message) {
      statusEl.textContent = message || '';
    }

    function showError(message) {
      if (!message) {
        errorBox.classList.add('hidden');
        errorBox.textContent = '';
        return;
      }
      errorBox.textContent = message;
      errorBox.classList.remove('hidden');
    }

    function renderLaTeX(latex) {
      LaTeXPreview.innerHTML = '';
      if (!latex) {
        LaTeXPreview.innerHTML = '<p class="text-sm text-slate-500">Podgląd pojawi się tutaj po konwersji.</p>';
        return;
      }

      try {
        LaTeX.render(latex, LaTeXPreview, {
          throwOnError: false,
          displayMode: true
        });
      } catch (err) {
        LaTeXPreview.innerHTML = '<p class="text-sm text-red-600">Nie udało się wyrenderować LaTeX.</p>';
      }
    }

    async function copyLatex() {
      const latex = latexRaw.textContent || '';
      if (!latex || latex === 'Tutaj pojawi się surowy tekst LaTeX...' || latex === 'Brak danych.') {
        showError('Brak LaTeX do skopiowania. Najpierw wykonaj konwersję.');
        return;
      }

      try {
        await navigator.clipboard.writeText(latex);
        setStatus('Skopiowano LaTeX');
        showError('');
      } catch (err) {
        showError('Nie udało się skopiować do schowka.');
      }
    }

    async function convert() {
      const expression = inputEl.value.trim();
      if (!expression) {
        showError('Wpisz treść do konwersji.');
        return;
      }

      convertBtn.disabled = true;
      setStatus('Konwertowanie...');
      showError('');

      try {
        const response = await fetch(API_URL, {
          method: 'POST',
          headers: {
            'Content-Type': 'application/json'
          },
          body: JSON.stringify({ expression })
        });

        const data = await response.json().catch(() => ({}));

        if (!response.ok) {
          throw new Error(data.error || 'Błąd konwersji.');
        }

        latexRaw.textContent = data.latex || '';
        renderLaTeX(data.latex || '');
        setStatus('Gotowe');
      } catch (err) {
        showError(err.message || 'Nie udało się połączyć z API.');
        latexRaw.textContent = 'Brak danych.';
        LaTeXPreview.innerHTML = '<p class="text-sm text-slate-500">Brak podglądu z powodu błędu.</p>';
        setStatus('Błąd');
      } finally {
        convertBtn.disabled = false;
      }
    }

    convertBtn.addEventListener('click', convert);
    copyBtn.addEventListener('click', copyLatex);
    exampleBtn.addEventListener('click', () => {
      inputEl.value = exampleText;
      showError('');
      setStatus('Wstawiono przykład');
    });

    inputEl.addEventListener('keydown', (event) => {
      if ((event.ctrlKey || event.metaKey) && event.key === 'Enter') {
        convert();
      }
    });

    renderLaTeX('');
  </script>
</body>
</html>