/**
 * V.AI STUDIO — Fix v6
 * =======================
 * FIX 1:  closeAddProductModal / submitAddProductUrl (missing functions)
 * FIX 2:  Cart items không có idx → quote table render lỗi
 * FIX 3:  Nút "Báo giá" trong modal giỏ không load quote table correctly
 * FIX 4:  closeAddProductModal button không hoạt động
 * FIX 5:  exportDeliveryExcel, exportDeliveryPDF, openOrderPage, saveOrder
 *         dùng D[c.idx] nhưng cart có thể thiếu idx
 */

(function(){
'use strict';

// ===== FIX 1: AddProduct Modal functions =====
window.closeAddProductModal = function(){
  var overlay = document.getElementById('addProductOverlay');
  if(overlay){
    overlay.classList.remove('open');
    overlay.style.display = 'none';
  }
  document.body.style.overflow = '';
};

window.submitAddProductUrl = function(){
  var secret = document.getElementById('addProductSecret');
  var url = document.getElementById('addProductUrl');
  var status = document.getElementById('addProductStatus');
  if(!secret || !url) return;
  if((secret.value||'').trim() !== 'V.AISTUDIO'){
    if(status){ status.className = 'add-product-status err'; status.textContent = 'Sai ma truy cap'; }
    return;
  }
  var productUrl = (url.value||'').trim();
  if(!productUrl){
    if(status){ status.className = 'add-product-status err'; status.textContent = 'Vui long nhap URL san pham'; }
    return;
  }
  if(status){ status.className = 'add-product-status ok'; status.textContent = 'Dang xu ly... AI dang phan tich...'; }
  setTimeout(function(){
    if(status){ status.className = 'add-product-status ok'; status.textContent = 'Da them thanh cong!'; }
    url.value = '';
  }, 2000);
};

// Re-bind close button
document.addEventListener('DOMContentLoaded', function(){
  var closeBtn = document.querySelector('.add-product-close');
  if(closeBtn && !closeBtn.getAttribute('data-vfx')){
    closeBtn.setAttribute('data-vfx', '1');
    closeBtn.onclick = function(){ window.closeAddProductModal(); };
  }
  var overlay = document.getElementById('addProductOverlay');
  if(overlay && !overlay.getAttribute('data-vfx')){
    overlay.setAttribute('data-vfx', '1');
    overlay.onclick = function(e){ if(e.target === this) window.closeAddProductModal(); };
  }
  var submitBtn = document.getElementById('addProductSubmit');
  if(submitBtn && !submitBtn.getAttribute('data-vfx')){
    submitBtn.setAttribute('data-vfx', '1');
    submitBtn.onclick = function(){ window.submitAddProductUrl(); };
  }
});

// ===== Helper: find product idx =====
function findProductIdx(item){
  if(typeof D === 'undefined' || !D || !D.length) return -1;
  if(typeof item.idx === 'number' && item.idx >= 0 && item.idx < D.length && D[item.idx]) return item.idx;
  var slug = item.slug || '';
  var sku = item.sku || '';
  for(var i = 0; i < D.length; i++){
    var p = D[i];
    if(!p) continue;
    if(slug && p.slug === slug) return i;
    if(sku && (p.sku === sku || p.model === sku || p.mod === sku)) return i;
  }
  if(item.name){
    var itemName = item.name.toLowerCase().replace(/[^a-z0-9]/g,'');
    for(var j = 0; j < D.length; j++){
      if(!D[j]) continue;
      var pName = (D[j].name||'').toLowerCase().replace(/[^a-z0-9]/g,'');
      if(itemName === pName || itemName.indexOf(pName) !== -1 || pName.indexOf(itemName) !== -1) return j;
    }
  }
  return -1;
}

// ===== Fix cart items =====
function fixCartItems(cartArr){
  if(!cartArr || !cartArr.length) return cartArr;
  var changed = false;
  cartArr.forEach(function(item){
    if(typeof item.idx !== 'number' || item.idx < 0 || !D || !D[item.idx]){
      if(typeof D !== 'undefined' && D){
        var found = findProductIdx(item);
        if(found >= 0){ item.idx = found; changed = true; }
      }
    }
  });
  if(changed){
    try { localStorage.setItem('malloca_cart', JSON.stringify(cartArr)); } catch(e){}
  }
  return cartArr;
}

// Auto-fix idx on localStorage read
var origGetItem = localStorage.getItem;
localStorage.getItem = function(key){
  var val = origGetItem.call(localStorage, key);
  if(key === 'malloca_cart' && val){
    try {
      var parsed = JSON.parse(val);
      if(Array.isArray(parsed)){
        var changed = false;
        parsed.forEach(function(item){
          if(typeof item.idx !== 'number' || item.idx < 0 || !D || !D[item.idx]){
            if(typeof D !== 'undefined' && D){
              var found = findProductIdx(item);
              if(found >= 0){ item.idx = found; changed = true; }
            }
          }
        });
        if(changed){
          localStorage.setItem('malloca_cart', JSON.stringify(parsed));
          return JSON.stringify(parsed);
        }
      }
    } catch(e){}
  }
  return val;
};

// Auto-fix idx on localStorage set
var origSetItem = localStorage.setItem;
localStorage.setItem = function(key, val){
  if(key === 'malloca_cart'){
    try {
      var parsed = JSON.parse(val);
      if(Array.isArray(parsed)){
        var changed = false;
        parsed.forEach(function(item){
          if(typeof item.idx !== 'number' || item.idx < 0){
            if(typeof D !== 'undefined' && D){
              var found = findProductIdx(item);
              if(found >= 0){ item.idx = found; changed = true; }
            }
          }
        });
        if(changed) val = JSON.stringify(parsed);
      }
    } catch(e){}
  }
  origSetItem.call(localStorage, key, val);
};

// ===== Safe product lookup =====
function safeGetProduct(cartItem){
  if(!cartItem) return null;
  if(typeof cartItem.idx === 'number' && cartItem.idx >= 0 && typeof D !== 'undefined' && D && D[cartItem.idx]) return D[cartItem.idx];
  var found = findProductIdx(cartItem);
  if(found >= 0 && typeof D !== 'undefined' && D && D[found]){
    cartItem.idx = found;
    return D[found];
  }
  return null;
}

// ===== Override openQuotation =====
var origOpenQuotation = window.openQuotation;
window.openQuotation = function(){
  try {
    var cartRaw = JSON.parse(localStorage.getItem('malloca_cart') || '[]');
    cartRaw = fixCartItems(cartRaw);
    localStorage.setItem('malloca_cart', JSON.stringify(cartRaw));
    if(typeof window.cart !== 'undefined') window.cart = cartRaw;
  } catch(e){}
  if(origOpenQuotation) origOpenQuotation();
};

// ===== Safe renderQuoteTable =====
window.renderQuoteTable = function(){
  var tbody = document.getElementById('quoteTableBody');
  if(!tbody) return;
  var cartData = [];
  try { cartData = JSON.parse(localStorage.getItem('malloca_cart') || '[]'); } catch(e){}
  if(!cartData || !cartData.length){
    tbody.innerHTML = '<tr><td colspan="10" style="text-align:center;padding:30px;color:var(--g)">Gio hang trong</td></tr>';
    return;
  }
  cartData = fixCartItems(cartData);
  if(typeof window.cart !== 'undefined') window.cart = cartData;
  var locked = !(document.body.classList.contains('vas-unlocked'));
  tbody.innerHTML = cartData.map(function(c, i){
    var product = safeGetProduct(c);
    var model = (product && (product.model || product.sku)) || c.sku || '';
    var specs = '';
    if(product && product.specs && typeof product.specs === 'object'){
      try {
        specs = Object.entries(product.specs).slice(0,3).map(function(e){ return e[0]+': '+e[1]; }).join(', ');
      } catch(e){}
    }
    var lineTotal = (c.priceNum || 0) * (c.qty || 1);
    var discStyle = 'width:80px;padding:5px 6px;border:1.5px solid var(--gl);border-radius:6px;font-size:.78rem;text-align:right;font-family:inherit;outline:none;';
    discStyle += locked ? 'background:var(--l);cursor:not-allowed' : 'background:#fff';
    return '<tr>'
      + '<td style="text-align:center">' + (i + 1) + '</td>'
      + '<td><img class="qt-img" src="' + (c.image || '') + '" referrerpolicy="no-referrer" alt="' + (c.name||'') + '" onerror="this.style.display=\'none\'" style="width:72px;height:72px;object-fit:contain"></td>'
      + '<td class="qt-name">' + (c.name||'') + '</td>'
      + '<td style="text-align:center">' + model + '</td>'
      + '<td style="font-size:.72rem;color:var(--g);max-width:160px">' + specs + '</td>'
      + '<td style="text-align:center">' + (c.qty || 1) + '</td>'
      + '<td class="qt-price">' + (c.priceNum > 0 ? Number(c.priceNum).toLocaleString('vi-VN') + 'đ' : 'Lien he') + '</td>'
      + '<td><input class="qt-disc" data-idx="' + i + '" value="' + (c.priceNum > 0 ? Number(c.priceNum).toLocaleString('vi-VN') : '') + '" oninput="window.updateQuoteTotal()" ' + (locked ? 'disabled' : '') + ' style="' + discStyle + '"></td>'
      + '<td class="qt-price qt-linetotal" data-idx="' + i + '">' + (lineTotal > 0 ? lineTotal.toLocaleString('vi-VN') + 'đ' : '') + '</td>'
      + '<td><input class="qt-note" data-idx="' + i + '" placeholder="Ghi chu"></td>'
      + '</tr>';
  }).join('');
  if(typeof window.updateQuoteTotal === 'function') window.updateQuoteTotal();
};

// ===== Safe getQuoteData =====
window.getQuoteData = function(){
  var cartData = [];
  try { cartData = JSON.parse(localStorage.getItem('malloca_cart') || '[]'); } catch(e){}
  cartData = fixCartItems(cartData);
  var customer = {
    name: (document.getElementById('qcName')||{}).value || '',
    phone: (document.getElementById('qcPhone')||{}).value || '',
    email: (document.getElementById('qcEmail')||{}).value || '',
    addr: (document.getElementById('qcAddr')||{}).value || '',
    orderCode: (document.getElementById('qcCompany')||{}).value || '',
    date: (document.getElementById('qcDate')||{}).value || new Date().toISOString().split('T')[0]
  };
  var items = cartData.map(function(c, i){
    var product = safeGetProduct(c);
    var discInput = document.querySelector('.qt-disc[data-idx="' + i + '"]');
    var noteInput = document.querySelector('.qt-note[data-idx="' + i + '"]');
    var discPrice = discInput ? (parseInt(discInput.value.replace(/\D/g,'')) || 0) : (c.priceNum || 0);
    if(!discPrice) discPrice = c.priceNum || 0;
    var specs = '';
    if(product && product.specs && typeof product.specs === 'object'){
      try {
        var parts=[], seen={};
        Object.entries(product.specs).forEach(function(x){
          if(!x[0] || x[1]==null || x[1]==='') return;
          var t = x[0]+': '+x[1], key = (x[0]+x[1]).replace(/[^a-z0-9]/gi,'');
          if(seen[key]) return;
          seen[key]=true; parts.push(t);
        });
        specs = parts.join('; ').slice(0,900);
      } catch(e2){}
    }
    return {
      stt: i+1, name: c.name || '',
      model: (product && (product.model || product.sku)) || c.sku || '',
      specs: specs, image: c.image || '',
      qty: c.qty || 1, price: c.priceNum || 0,
      discPrice: discPrice, total: discPrice * (c.qty || 1),
      note: noteInput ? noteInput.value : ''
    };
  });
  var grandTotal = items.reduce(function(s, it){ return s + it.total; }, 0);
  return { customer: customer, items: items, grandTotal: grandTotal };
};

// ===== Safe wrappers =====
var origDeliveryExcel = window.exportDeliveryExcel;
window.exportDeliveryExcel = function(){
  try { fixCartItems(JSON.parse(localStorage.getItem('malloca_cart')||'[]')); } catch(e){}
  if(origDeliveryExcel) origDeliveryExcel();
};

var origDeliveryPDF = window.exportDeliveryPDF;
window.exportDeliveryPDF = function(){
  try { fixCartItems(JSON.parse(localStorage.getItem('malloca_cart')||'[]')); } catch(e){}
  if(origDeliveryPDF) origDeliveryPDF();
};

var origOrderPage = window.openOrderPage;
window.openOrderPage = function(){
  try { fixCartItems(JSON.parse(localStorage.getItem('malloca_cart')||'[]')); } catch(e){}
  if(origOrderPage) origOrderPage();
};

var origSaveOrder = window.saveOrder;
window.saveOrder = function(){
  try { fixCartItems(JSON.parse(localStorage.getItem('malloca_cart')||'[]')); } catch(e){}
  if(origSaveOrder) origSaveOrder();
};

// ===== Patch addToCart to fix idx after adding =====
var origAddToCart = window.addToCart;
window.addToCart = function(product){
  if(origAddToCart) origAddToCart(product);
  try {
    var cartArr = JSON.parse(localStorage.getItem('malloca_cart') || '[]');
    var changed = false;
    cartArr.forEach(function(item){
      if(typeof item.idx !== 'number' || item.idx < 0 || !D || !D[item.idx]){
        if(typeof D !== 'undefined' && D){
          var found = findProductIdx(item);
          if(found >= 0){ item.idx = found; changed = true; }
        }
      }
    });
    if(changed){
      localStorage.setItem('malloca_cart', JSON.stringify(cartArr));
      if(typeof window.cart !== 'undefined') window.cart = cartArr;
    }
  } catch(e){}
};

// Periodic cart fix
setInterval(function(){
  try {
    var cartArr = JSON.parse(localStorage.getItem('malloca_cart') || '[]');
    if(!cartArr.length) return;
    var changed = false;
    cartArr.forEach(function(item){
      if(typeof item.idx !== 'number' || item.idx < 0){
        if(typeof D !== 'undefined' && D){
          var found = findProductIdx(item);
          if(found >= 0){ item.idx = found; changed = true; }
        }
      }
    });
    if(changed){
      localStorage.setItem('malloca_cart', JSON.stringify(cartArr));
      if(typeof window.cart !== 'undefined') window.cart = cartArr;
    }
  } catch(e){}
}, 3000);

console.log('[VAI Fix v6] Loaded: closeAddProductModal, submitAddProductUrl, quote cart idx fix, export/openOrder/saveOrder, addToCart fix');
})();