let DATA = null;
let currentFilter = 'all';
let currentSearch = '';

async function load() {
  const res = await fetch('data.json?_=' + Date.now());
  DATA = await res.json();
  renderStats();
  render();
  document.getElementById('gen').textContent = '生成于 ' + DATA.generated_at;
}

function renderStats() {
  const t = DATA.templates;
  const fig = t.filter(x => x.has_fig).length;
  const sk = t.filter(x => x.has_sketch).length;
  const xd = t.filter(x => x.has_xd).length;
  const psd = t.filter(x => x.has_psd).length;
  const imp = t.filter(x => x.figma_key).length;
  const el = document.getElementById('stats');
  el.innerHTML = `
    <div class="stat"><b>${t.length}</b>套总量</div>
    <div class="stat"><b>${fig}</b>Figma 原生</div>
    <div class="stat"><b>${sk}</b>含 Sketch</div>
    <div class="stat"><b>${xd}</b>含 XD</div>
    <div class="stat"><b>${psd}</b>含 PSD</div>
    <div class="stat"><b>${imp}</b>已入 Figma Drafts</div>
  `;
  const banner = document.getElementById('banner');
  if (DATA.imported_summary) {
    banner.innerHTML = DATA.imported_summary;
    banner.classList.add('show');
  }
}

function matchFilter(t) {
  if (currentFilter === 'all') return true;
  if (currentFilter === 'fig') return t.has_fig;
  if (currentFilter === 'sketch') return t.has_sketch;
  if (currentFilter === 'xd') return t.has_xd;
  if (currentFilter === 'psd') return t.has_psd;
  if (currentFilter === 'imported') return !!t.figma_key;
  return true;
}

function matchSearch(t) {
  if (!currentSearch) return true;
  return t.name.toLowerCase().includes(currentSearch) ||
         t.id.toLowerCase().includes(currentSearch);
}

function render() {
  const grid = document.getElementById('grid');
  const empty = document.getElementById('empty');
  const list = DATA.templates.filter(t => matchFilter(t) && matchSearch(t));
  if (list.length === 0) {
    grid.innerHTML = '';
    empty.hidden = false;
    return;
  }
  empty.hidden = true;
  grid.innerHTML = list.map(t => `
    <article class="card" data-id="${t.id}">
      <div class="cover">
        ${t.cover ? `<img src="${t.cover}" alt="${escapeHtml(t.name)}" loading="lazy">` : ''}
        <span class="id">${t.id}</span>
        ${t.figma_key ? '<span class="imported">已入 Figma</span>' : ''}
      </div>
      <div class="body">
        <h3>${escapeHtml(t.name)}</h3>
        <div class="meta">
          <div class="badges">
            ${t.has_fig    ? `<span class="badge fig">FIG${t.fig_count>1?'×'+t.fig_count:''}</span>`    : ''}
            ${t.has_sketch ? `<span class="badge sketch">SKETCH${t.sketch_count>1?'×'+t.sketch_count:''}</span>` : ''}
            ${t.has_xd     ? `<span class="badge xd">XD${t.xd_count>1?'×'+t.xd_count:''}</span>`     : ''}
            ${t.has_psd    ? `<span class="badge psd">PSD</span>`    : ''}
          </div>
          <span>${t.archive_size_mb} MB</span>
        </div>
      </div>
    </article>
  `).join('');
  grid.querySelectorAll('.card').forEach(c => {
    c.addEventListener('click', () => openModal(c.dataset.id));
  });
}

function openModal(id) {
  const t = DATA.templates.find(x => x.id === id);
  if (!t) return;
  const body = document.getElementById('modalBody');
  const variants = t.figma_variants || (t.figma_key ? [{name: t.name, key: t.figma_key, url: t.figma_url}] : []);
  const hasMulti = variants.length > 1;

  const tabsHtml = hasMulti
    ? `<div class="variant-tabs" id="variantTabs">
        ${variants.map((v, i) => `<button class="vtab ${i===0?'active':''}" data-idx="${i}">${escapeHtml(v.name || v.matched || `变体 ${i+1}`)}</button>`).join('')}
      </div>`
    : '';

  const firstVariant = variants[0];
  const iframeHtml = firstVariant
    ? `<iframe class="figma-embed" id="variantFrame" src="https://embed.figma.com/design/${firstVariant.key}/?embed-host=kang&footer=false" allowfullscreen></iframe>`
    : '';

  const openBtn = firstVariant
    ? `<a class="btn" id="variantOpenBtn" href="${firstVariant.url}" target="_blank">在 Figma 打开 →</a>`
    : (t.has_fig
      ? `<a class="btn" href="https://www.figma.com/files/recent" target="_blank">在 Figma Drafts 搜 "${escapeAttr(t.name.split(/[\s\-–—]/)[0])}" →</a>`
      : '');

  body.innerHTML = `
    <h2>${escapeHtml(t.name)}${hasMulti ? ` <span class="vcount">${variants.length} 变体</span>` : ''}</h2>
    <div class="sub2">
      <code>${t.id}</code>
      <span>${t.archive_size_mb} MB</span>
      ${t.has_fig    ? `<span class="badge fig">FIG×${t.fig_count}</span>`    : ''}
      ${t.has_sketch ? `<span class="badge sketch">SKETCH×${t.sketch_count}</span>` : ''}
      ${t.has_xd     ? `<span class="badge xd">XD×${t.xd_count}</span>`     : ''}
      ${t.has_psd    ? `<span class="badge psd">PSD</span>`    : ''}
    </div>
    <div class="actions">
      ${openBtn}
      <a class="btn ghost" href="${t.source_rel}" onclick="revealSource('${t.id}');return false;">在 Finder 中显示源包</a>
      <a class="btn ghost" href="javascript:void(0)" onclick="copyPath('${t.id}');">复制源文件路径</a>
    </div>
    ${tabsHtml}
    ${iframeHtml}
    <div class="spec">
      <div class="k">源包</div><div class="v">source/${t.id}/${t.archive}</div>
      <div class="k">解压目录</div><div class="v">extracted/${t.id}/</div>
      ${firstVariant ? `<div class="k">Figma Key</div><div class="v" id="variantKey">${firstVariant.key}</div>` : ''}
    </div>
    <div class="gallery">
      ${(t.gallery||[]).map(g => `<img src="${g}" loading="lazy">`).join('')}
    </div>
  `;

  if (hasMulti) {
    document.getElementById('variantTabs').addEventListener('click', e => {
      const btn = e.target.closest('.vtab');
      if (!btn) return;
      const idx = +btn.dataset.idx;
      const v = variants[idx];
      document.querySelectorAll('.vtab').forEach(b => b.classList.toggle('active', b === btn));
      document.getElementById('variantFrame').src = `https://embed.figma.com/design/${v.key}/?embed-host=kang&footer=false`;
      document.getElementById('variantOpenBtn').href = v.url;
      document.getElementById('variantKey').textContent = v.key;
    });
  }

  document.getElementById('modal').hidden = false;
  document.body.style.overflow = 'hidden';
}

function closeModal() {
  document.getElementById('modal').hidden = true;
  document.body.style.overflow = '';
  document.getElementById('modalBody').innerHTML = '';
}

function revealSource(id) {
  // Dev-only helper: try opening local path in Finder via file://
  // Browsers block file:// from http:// — fall back to a helpful alert
  const path = `${location.pathname.replace(/\/[^/]*$/, '')}/../extracted/${id}`;
  alert(`本地路径：\n~/Projects/research/20260422-figma模板库/extracted/${id}/\n\n在终端跑：\nopen ~/Projects/research/20260422-figma模板库/extracted/${id}`);
}

function escapeHtml(s) {
  return String(s).replace(/[&<>"']/g, c => ({'&':'&amp;','<':'&lt;','>':'&gt;','"':'&quot;',"'":'&#39;'}[c]));
}
function escapeAttr(s) {
  return String(s).replace(/"/g, '&quot;');
}
function copyPath(id) {
  const t = DATA.templates.find(x => x.id === id);
  if (!t) return;
  const p = `~/Projects/research/20260422-figma模板库/extracted/${id}/`;
  navigator.clipboard.writeText(p).then(() => {
    alert('已复制：\n' + p);
  });
}

document.getElementById('filters').addEventListener('click', e => {
  const btn = e.target.closest('.pill');
  if (!btn) return;
  document.querySelectorAll('.pill').forEach(p => p.classList.toggle('active', p === btn));
  currentFilter = btn.dataset.filter;
  render();
});

document.getElementById('search').addEventListener('input', e => {
  currentSearch = e.target.value.trim().toLowerCase();
  render();
});

document.getElementById('modalClose').addEventListener('click', closeModal);
document.querySelector('.modal-bg').addEventListener('click', closeModal);
document.addEventListener('keydown', e => { if (e.key === 'Escape') closeModal(); });

load();