{% extends "base.html" %}
{% block title %}{{ filename }}{% endblock %}

{% block content %}

<section class="card">
  <div class="preview-header">
    <a href="{{ url_for('browse', subpath=parent_path) if parent_path else url_for('browse') }}"
       class="back-link">← Retour</a>
    <h1>{{ filename }}</h1>
    {% include '_preview_nav.html' %}
  </div>
  <div class="preview-meta">
    <span>Taille : <strong>{{ filesize }}</strong></span>
    <span>Modifié : <strong>{{ mtime.strftime('%d/%m/%Y %H:%M') }}</strong></span>
    <a href="{{ raw_url }}" download="{{ filename }}" class="btn btn-primary" style="margin-left:auto">
      Télécharger
    </a>
  </div>
</section>

<div class="preview-image-wrap">
  <img src="{{ raw_url }}" alt="{{ filename }}">
</div>

<section class="card resize-card">
  <h2>Créer des copies redimensionnées</h2>
  <div class="resize-body">

    <div class="resize-group">
      <div class="resize-group-label">Tailles (px)</div>
      <div class="resize-chips">
        {% for size in [32, 64, 100, 128, 200, 300, 500, 600, 1024] %}
        <label class="chip">
          <input type="checkbox" class="resize-sz" value="{{ size }}">
          <span>{{ size }}×{{ size }}</span>
        </label>
        {% endfor %}
      </div>
    </div>

    <div class="resize-group">
      <div class="resize-group-label">Formats</div>
      <div class="resize-chips">
        {% for fmt in ['png', 'jpg', 'ico'] %}
        <label class="chip">
          <input type="checkbox" class="resize-fmt" value="{{ fmt }}">
          <span>.{{ fmt }}</span>
        </label>
        {% endfor %}
        <label class="chip {% if ext != '.svg' %}chip--disabled{% endif %}"
               title="{% if ext != '.svg' %}SVG uniquement disponible si la source est SVG{% endif %}">
          <input type="checkbox" class="resize-fmt" value="svg"
                 {% if ext != '.svg' %}disabled{% endif %}>
          <span>.svg</span>
        </label>
      </div>
    </div>

    <div class="resize-actions">
      <button id="resize-btn" class="btn btn-primary" disabled>Générer les copies</button>
      <span class="resize-hint">Les fichiers sont créés dans le même dossier</span>
    </div>

    <div id="resize-result" class="resize-result" style="display:none"></div>

  </div>
</section>

<script>
(function () {
  const szCbs  = document.querySelectorAll('.resize-sz');
  const fmtCbs = document.querySelectorAll('.resize-fmt');
  const btn    = document.getElementById('resize-btn');
  const result = document.getElementById('resize-result');
  const PATH   = {{ subpath | tojson }};
  const URL_RESIZE = {{ url_for('resize_image') | tojson }};

  function canSubmit() {
    return Array.from(szCbs).some(c => c.checked)
        && Array.from(fmtCbs).some(c => c.checked);
  }
  [...szCbs, ...fmtCbs].forEach(c => c.addEventListener('change', () => {
    btn.disabled = !canSubmit();
  }));

  btn.addEventListener('click', async () => {
    const fd = new FormData();
    fd.append('path', PATH);
    szCbs.forEach(c  => { if (c.checked) fd.append('sizes',   c.value); });
    fmtCbs.forEach(c => { if (c.checked) fd.append('formats', c.value); });

    btn.disabled = true;
    btn.textContent = 'Génération en cours…';
    result.style.display = 'none';

    try {
      const resp = await fetch(URL_RESIZE, { method: 'POST', body: fd });
      const data = await resp.json();
      let html = '';

      if (data.created && data.created.length) {
        html += '<p class="resize-ok-title">✓ ' + data.created.length + ' fichier(s) créé(s)</p>';
        html += '<ul class="resize-list">';
        data.created.forEach(f => {
          html += '<li><a href="/browse/' + f.path + '">' + f.name + '</a></li>';
        });
        html += '</ul>';
      }
      if (data.errors && data.errors.length) {
        html += '<p class="resize-err-title">⚠ ' + data.errors.length + ' erreur(s)</p>';
        html += '<ul class="resize-list resize-list--err">';
        data.errors.forEach(e => {
          html += '<li><code>' + (e.name || '') + '</code> : ' + e.reason + '</li>';
        });
        html += '</ul>';
      }
      if (!html) html = '<p class="resize-none">Aucun fichier généré.</p>';
      result.innerHTML = html;
    } catch (_) {
      result.innerHTML = '<p class="resize-err-title">Erreur réseau.</p>';
    }

    result.style.display = 'block';
    btn.textContent = 'Générer les copies';
    btn.disabled = !canSubmit();
  });
})();
</script>

{% endblock %}