const jalanCfg = {
  Nasional: { color: '#dc2626', weight: 5 },
  Provinsi: { color: '#d97706', weight: 3.5 },
  Kabupaten: { color: '#2563eb', weight: 2.5 }
};

function renderJalanPanel(pb) {
  return callAPI('data_jalan.php').then(res => {
    const data = res.data || [];
    const cnt = k => data.filter(d => d.status_jalan === k).length;

    pb.innerHTML = `
      <div class="layer-section">
        <div class="layer-section-title">Filter Layer</div>
        ${['Nasional', 'Provinsi', 'Kabupaten'].map(s => `
          <div class="layer-item ${layerVisible['jalan' + s] ? 'checked' : ''}" onclick="toggleLayer('jalan${s}',this)">
            <div class="layer-check">${layerVisible['jalan' + s] ? '✓' : ''}</div>
            <div class="layer-dot" style="background:${jalanCfg[s].color};border-radius:2px;height:4px;width:18px;border-radius:2px"></div>
            <div class="layer-label">Jalan ${s}</div>
            <div class="layer-count">${cnt(s)}</div>
          </div>`).join('')}
      </div>
      <div class="layer-section">
        <div class="layer-section-title">Tambah Data</div>
        <button class="btn-add" onclick="startDrawJalan()">+ Tambah Jalan</button>
      </div>
      <div class="layer-section">
        <div class="layer-section-title">Data Jalan (${data.length})</div>
        <div class="data-list">
          ${data.length ? data.map(d => `
            <div class="data-item" onclick="focusGeom(${d.id},'jalan')">
              <div class="item-icon">🛣</div>
              <div class="item-info">
                <div class="item-name">${esc(d.nama_jalan)}</div>
                <div class="item-sub">${(d.panjang_meter / 1000).toFixed(3)} km</div>
              </div>
              <div style="display:flex;align-items:center;gap:5px">
                <div class="item-badge" style="background:${jalanCfg[d.status_jalan].color}18;color:${jalanCfg[d.status_jalan].color};border:1px solid ${jalanCfg[d.status_jalan].color}44">${d.status_jalan.toUpperCase()}</div>
                <button class="btn btn-ghost btn-sm" onclick="event.stopPropagation();editJalan(${d.id})">✏</button>
                <button class="btn btn-danger btn-sm" onclick="event.stopPropagation();deleteJalan(${d.id})">✕</button>
              </div>
            </div>`).join('') : '<div class="loading">Belum ada data jalan</div>'}
        </div>
      </div>`;
    loadJalanLayer(data);
    registerSearchEntries('jalan', data.map(d => ({
      key: `jalan:${d.id}`,
      label: d.nama_jalan,
      subtitle: `Jalan ${d.status_jalan} · ${(d.panjang_meter / 1000).toFixed(3)} km${d.keterangan ? ` · ${d.keterangan}` : ''}`,
      typeLabel: 'Jalan',
      icon: '🛣',
      searchText: normalizeSearchText(`${d.nama_jalan} ${d.status_jalan} jalan`),
      focus: () => focusGeom(d.id, 'jalan')
    })));
    updateStatusCount();
  });
}

function loadJalanLayer(data) {
  ['Nasional', 'Provinsi', 'Kabupaten'].forEach(k => layers['jalan' + k].clearLayers());
  data.forEach(d => {
    const cfg = jalanCfg[d.status_jalan], coords = d.geojson.coordinates.map(c => [c[1], c[0]]);
    const line = L.polyline(coords, { color: cfg.color, weight: cfg.weight, opacity: 0.9 })
      .bindPopup(`<h4>🛣 ${esc(d.nama_jalan)}</h4>
        <p><b>Status:</b> Jalan ${d.status_jalan}</p>
        <p><b>Panjang:</b> ${(d.panjang_meter / 1000).toFixed(3)} km</p>
        ${d.keterangan ? `<p>${esc(d.keterangan)}</p>` : ''}
        <div class="popup-actions"><button class="btn btn-ghost btn-sm" onclick="editJalan(${d.id})">✏ Edit</button><button class="btn btn-danger btn-sm" onclick="deleteJalan(${d.id})">✕ Hapus</button></div>`);
    line._dataId = d.id;
    line._groupKey = 'jalan' + d.status_jalan;
    layers['jalan' + d.status_jalan].addLayer(line);
  });
}

function openJalanForm() {
  openModal('Simpan Data Jalan', `
    <div class="form-calc">📏 Panjang: <b>${pendingLength.toFixed(1)} m</b> = ${(pendingLength / 1000).toFixed(3)} km </div>
    <div class="form-group"><label class="form-label">Nama Jalan *</label>
      <input class="form-input" id="jl-nama" placeholder="Jl. Ahmad Yani…"/></div>
    <div class="form-group"><label class="form-label">Status Jalan *</label>
      <select class="form-select" id="jl-status">
        <option value="Nasional">Jalan Nasional</option>
        <option value="Provinsi">Jalan Provinsi</option>
        <option value="Kabupaten">Jalan Kabupaten</option>
      </select></div>
    <div class="form-group"><label class="form-label">Keterangan</label>
      <input class="form-input" id="jl-ket" placeholder="Opsional…"/></div>`,
    `<button class="btn btn-ghost" onclick="closeModal();drawnItems.clearLayers()">Batal</button>
   <button class="btn btn-primary" onclick="saveJalan()">💾 Simpan</button>`);
}

async function saveJalan() {
  const body = {
    nama_jalan: document.getElementById('jl-nama').value.trim(),
    status_jalan: document.getElementById('jl-status').value,
    panjang_meter: pendingLength,
    keterangan: document.getElementById('jl-ket').value,
    geojson: pendingGeoJSON
  };
  if (!body.nama_jalan) return toast('Nama wajib diisi', 'error');
  const res = await callAPI('data_jalan.php', 'POST', body);
  if (res.status === 'success') {
    toast(res.message, 'success');
    closeModal();
    drawnItems.clearLayers();
    pendingGeoJSON = null;
    pendingLength = null;
    switchTab('jalan');
  } else {
    toast(res.message, 'error');
  }
}

async function editJalan(id) {
  map.closePopup();
  const res = await callAPI(`data_jalan.php?id=${id}`);
  const data = res.data;
  const sourceLayer = findGeomLayer('jalan', id);
  if (!data) return toast('Data jalan tidak ditemukan', 'error');

  const groupKey = getGeometryGroupKey('jalan', data);
  const editLayer = sourceLayer ? cloneEditableLayer('jalan', sourceLayer) : buildGeometryLayer('jalan', data);
  editLayer._dataId = id;
  editLayer._groupKey = groupKey;

  if (sourceLayer) layers[groupKey].removeLayer(sourceLayer);
  drawnItems.clearLayers();
  drawnItems.addLayer(editLayer);

  geometryEditState = { type: 'jalan', id, groupKey, sourceLayer, editLayer };
  if (editLayer.editing && editLayer.editing.enable) {
    editLayer.editing.enable();
  } else {
    const handler = getGeometryEditHandler();
    if (!handler) {
      drawnItems.clearLayers();
      if (sourceLayer) layers[groupKey].addLayer(sourceLayer);
      geometryEditState = null;
      return toast('Mode edit geometri belum siap', 'error');
    }
    handler.enable();
  }
  map.fitBounds(editLayer.getBounds(), { padding: [50, 50], duration: 1 });
  document.getElementById('panel-title').textContent = 'Edit Data Jalan';
  document.getElementById('panel-body').innerHTML = `
    <div class="layer-section">
      <div class="layer-section-title">Edit Jalan</div>
      <div style="font-size:11px;line-height:1.7;color:var(--text2);padding:10px 12px;background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:12px">
        Geser titik-titik garis di peta lalu simpan perubahan.
      </div>
      <div class="form-group">
        <label class="form-label">Nama Jalan *</label>
        <input class="form-input" id="jl-edit-nama" value="${esc(data.nama_jalan)}" />
      </div>
      <div class="form-row">
        <div class="form-group">
          <label class="form-label">Status Jalan *</label>
          <select class="form-select" id="jl-edit-status">
            ${['Nasional', 'Provinsi', 'Kabupaten'].map(s => `<option value="${s}"${data.status_jalan === s ? ' selected' : ''}>Jalan ${s}</option>`).join('')}
          </select>
        </div>
        <div class="form-group">
          <label class="form-label">Panjang Otomatis</label>
          <input class="form-input" id="jl-edit-panjang" value="${(data.panjang_meter / 1000).toFixed(3)} km" disabled />
        </div>
      </div>
      <div class="form-group">
        <label class="form-label">Keterangan</label>
        <input class="form-input" id="jl-edit-ket" value="${esc(data.keterangan || '')}" />
      </div>
    </div>`;
  document.getElementById('panel-body').insertAdjacentHTML('beforeend', `
    <div style="display:flex;gap:8px">
      <button class="btn btn-ghost" style="flex:1" onclick="cancelGeometryEdit()">Batal</button>
      <button class="btn btn-primary" style="flex:1" onclick="saveJalanEdit(${id})">Simpan Perubahan</button>
    </div>`);
}

async function saveJalanEdit(id) {
  const state = geometryEditState;
  if (!state || state.type !== 'jalan') return;
  const layer = state.editLayer;
  const coords = layer.getLatLngs().map(ll => [ll.lng, ll.lat]);
  const panjang_meter = turf.length(turf.lineString(coords), { units: 'meters' });
  const body = {
    nama_jalan: document.getElementById('jl-edit-nama').value.trim(),
    status_jalan: document.getElementById('jl-edit-status').value,
    panjang_meter,
    keterangan: document.getElementById('jl-edit-ket').value,
    geojson: { type: 'LineString', coordinates: coords }
  };
  if (!body.nama_jalan) return toast('Nama wajib diisi', 'error');
  const res = await callAPI(`data_jalan.php?id=${id}`, 'PUT', body);
  if (res.status === 'success') {
    toast(res.message, 'success');
    if (layer.editing && layer.editing.disable) layer.editing.disable();
    const handler = getGeometryEditHandler();
    if (handler) handler.disable();
    drawnItems.clearLayers();
    geometryEditState = null;
    switchTab('jalan');
  } else {
    toast(res.message, 'error');
  }
}

async function deleteJalan(id) {
  if (!confirm('Hapus?')) return;
  const r = await callAPI(`data_jalan.php?id=${id}`, 'DELETE');
  if (r.status === 'success') {
    toast('Dihapus', 'success');
    map.closePopup();
    switchTab('jalan');
  }
}