}

function formatDate(dateString) {
  const date = new Date(dateString);
  return date.toLocaleDateString('pt-BR');
}

/* -------------------- EXPORT / CLEAR -------------------- */
function downloadSales(){
  if(state.sales.length===0) return alert('Sem vendas para exportar');
  let csv = 'id,table,method,total,ts,items\n';
  state.sales.forEach(s=>{
    const items = s.items.map(i=>`${i.name} x${i.qty}`).join('; ');
    csv += `${s.id},"${s.tableName}",${s.method},${s.total},${s.ts},"${items}"\n`;
  });
  const blob=new Blob([csv],{type:'text/csv'}); const url=URL.createObjectURL(blob);
  const a=document.createElement('a'); a.href=url; a.download='vendas_espeto.csv'; a.click(); URL.revokeObjectURL(url);
}

function clearAllData(){
  if(!confirm('Apagar TODOS os dados (produtos, mesas, vendas e despesas)?')) return;
  state={products:[],tables:[],sales:[],expenses:[]};
  localStorage.removeItem(K_PRODUCTS); localStorage.removeItem(K_TABLES); localStorage.removeItem(K_SALES); localStorage.removeItem(K_EXPENSES);
  render(); closeModal();
}

/* -------------------- DESPESAS (mantidos) -------------------- */
function addExpense(){
  const name = document.getElementById('expenseName').value.trim();
  const value = parseFloat(document.getElementById('expenseValue').value);
  if(!name || isNaN(value)) return alert('Preencha nome e valor válidos');
  state.expenses.push({id: Date.now(), name, amount: Math.round(value*100)/100, ts: new Date().toISOString()});
  document.getElementById('expenseName').value=''; document.getElementById('expenseValue').value='';
  saveState(); renderExpenses();
}
function editExpense(id){
  const e = state.expenses.find(x=>x.id===id); if(!e) return;
  const n = prompt('Nome da despesa', e.name); if(n===null) return;
  const v = prompt('Valor (R$)', e.amount);
  const value = parseFloat(v);
  if(!n.trim() || isNaN(value)) return alert('Dados inválidos');
  e.name = n.trim(); e.amount = Math.round(value*100)/100; saveState(); renderExpenses();
}
function removeExpense(id){
  if(!confirm('Remover despesa?')) return;
  state.expenses = state.expenses.filter(x=>x.id!==id);
  saveState(); renderExpenses();
}
function renderExpenses(){
  const el = document.getElementById('expensesList'); el.innerHTML='';
  if(state.expenses.length===0){ el.innerHTML='<div class="small">Nenhuma despesa registrada.</div>'; document.getElementById('expensesTotalText').textContent = 'Total despesas: R$ 0.00'; return; }
  // mostrar as despesas mais recentes primeiro
  state.expenses.slice().reverse().forEach(e=>{
    const div = document.createElement('div'); div.className='expense';
    const date = new Date(e.ts).toLocaleString();
    div.innerHTML = `<div><div style='font-weight:700'>${escapeHtml(e.name)}</div><div class='small'>R$ ${Number(e.amount).toFixed(2)} • ${date}</div></div>
      <div class='flex'><button class='qty-btn' onclick='editExpense(${e.id})'>Editar</button><button class='qty-btn' onclick='removeExpense(${e.id})'>Apagar</button></div>`;
    el.appendChild(div);
  });
  const total = state.expenses.reduce((s,x)=>s + Number(x.amount||0),0);
  document.getElementById('expensesTotalText').textContent = `Total despesas: R$ ${total.toFixed(2)}`;
}
function loadExpenseSamples(){
  const samples = [
    {id:Date.now()+1, name:'Espetos', amount: 30.00, ts: new Date().toISOString()},
    {id:Date.now()+2, name:'Guarnições', amount: 20.00, ts: new Date().toISOString()},
    {id:Date.now()+3, name:'Descartáveis', amount: 10.00, ts: new Date().toISOString()},
    {id:Date.now()+4, name:'Refrigerantes', amount: 25.00, ts: new Date().toISOString()},
    {id:Date.now()+5, name:'Água', amount: 5.00, ts: new Date().toISOString()},
    {id:Date.now()+6, name:'Cerveja', amount: 40.00, ts: new Date().toISOString()},
    {id:Date.now()+7, name:'Carvão', amount: 35.00, ts: new Date().toISOString()},
    {id:Date.now()+8, name:'Gelo', amount: 12.00, ts: new Date().toISOString()},
    {id:Date.now()+9, name:'Verduras', amount: 18.00, ts: new Date().toISOString()},
  ];
  state.expenses = state.expenses.concat(samples);
  saveState(); renderExpenses();
}

/* -------------------- UTIL -------------------- */
fum