var itemsAddedToBasket = 0;
var products_in_basket = [];
var last_received_ajax_id = 0;
var last_ajax_id = 0;
var ajax_requests = new Array();
var order_basket_when_complete = false;

function add_to_basket(_product)
{
  log('add_to_basket');

  _product.server_id = 0;
  _product.count = 1;
  _product.basket_id = Math.round(Math.random() * 99999999);
		
  products_in_basket.push(_product);

  addProductToTable(_product);
  send_product_to_server(_product);
}

function server_add_to_basket(
  _server_id, 
  _data, 
  _description, 
  _product_type,
  _width,
  _height,
  _color, 
  _price, 
  _count, 
  _disable_edit)
{
  log('server_add_to_basket');

  try {
    var product = new Object;
		
    product.basket_id = Math.round(Math.random() * 99999999);
    product.server_id = _server_id;
    product.description = _description;
    product.sign_type = _product_type;
    product.get_sign_type = function () {
      return this.sign_type;
    }
    product.width = _width;
    product.height = _height;
    product.colors_as_text = function(){
      return _color
    };
    product.price = _price;
    product.count = _count;
    product.data = _data;
    product.to_string = function () {
      return this.data;
    };
    products_in_basket.push(product);
  	
    addProductToTable(product, _disable_edit);
    return product;
  } 
  catch (e) {
  }
}

function local_measurement(_mm)
{
  if (local_measurement_str() != "mm")
    return Math.round(_mm * 0.393700787) / 10;
	
  return _mm;
}

function inverted_measurement(_mm)
{
  if (local_measurement_str() != "mm")
    return Math.round(_mm / 0.0393700787);
	
  return _mm;
}

function local_measurement_str()
{
  return $$('money_type').getAttribute('measurement');
}

function local_measurement_string(_mm)
{
  if (local_measurement_str() != "mm")
    return local_measurement(_mm) + " " + local_measurement_str();
  else
    return local_measurement(_mm) + local_measurement_str();
}


function price_with_sign(_price)
{
  if ($$('money_type').getAttribute('money_first') == "true")
    return $$('money_type').getAttribute('money_name') + _price;
  else
    return _price + " " + $$('money_type').getAttribute('money_name');
}

function local_price(_price)
{
  var relative_value = $$('money_type').getAttribute('rel_value') * 1;
  var price = (_price / relative_value).toFixed($$('money_type').getAttribute('decimals'));

  return price_with_sign(price);
}

function local_price_sum(_price)
{
  var relative_value = $$('money_type').getAttribute('rel_value') * 1;
  var price = (_price / relative_value).toFixed($$('money_type').getAttribute('decimals'));

  return price;
}

function local_price_tax(_price)
{
  var relative_value = $$('money_type').getAttribute('rel_value') * 1;
  var tax = $$('money_type').getAttribute('tax') / 100;
  var price = (_price / relative_value * tax).toFixed($$('money_type').getAttribute('decimals'));
  return price_with_sign(price);
}

function local_price_with_tax(_price)
{
  var relative_value = $$('money_type').getAttribute('rel_value') * 1;
  var tax = $$('money_type').getAttribute('tax') / 100 + 1;
	
  var price = (_price / relative_value * tax).toFixed($$('money_type').getAttribute('decimals'));
  return price_with_sign(price);
}

var first_product = true;

function addProductToTable(_product, _disable_edit)
{
  log('addProductToTable');
	
  _disable_edit = _disable_edit || first_product;
  first_product = false;

  var tbl = $$('order_basket_table');
  var tbl_rows = tbl.rows.length;
	
  if ($$('basket_discount')) tbl_rows -= 1;
  if ($$('basket_total_price_row')) tbl_rows -= 1;
	
  var row = tbl.insertRow(tbl_rows);

  //row.onmouseover = function () { row.style.backgroundColor = "#ddd"; };
  //row.onmouseout = function () { row.style.backgroundColor = "#fff"; };
	
  var row_id = _product.basket_id;
	
  // left cell
  var cellLeft = row.insertCell(0);
  cellLeft.appendChild(document.createTextNode(tbl_rows));
  
  var description_cell = row.insertCell(1);
  description_cell.style.textAlign = 'left';
  description_cell.basket_id = row_id;

  /*	description_cell.onclick = function () { 
		var data = decodeURIComponent(find_product_from_basket_id(this.basket_id).to_string());
		
		if (data.length < 5) return;
		
		sign = new Sign( data ); 
		sign.save_to_cookie();
		document.location = document.location.href;
		return;
	}*/
	
  var description = document.createElement("div");
  description.className = "basket_description";
        
  if(_product && _product.data && (_product.data.indexOf("border-bottom") > 0)){
    description.innerHTML = "<u>" + _product.description + "</u>";
  }else{
    description.innerHTML = _product.description;
  }
        
  description_cell.appendChild(description);

  var cellColor = row.insertCell(2);
  cellColor.appendChild(document.createTextNode(_product.colors_as_text()));

  var cellPrice = row.insertCell(3);
  cellPrice.id = "basket_item_price_" + row_id;
  cellPrice.appendChild(document.createTextNode(local_price(_product.price)));

  if (!_disable_edit) {
    var count_input = document.createElement('input');
    count_input.type = 'text';
    count_input.name = "basket_item_count_" + row_id;
    count_input.id = "basket_item_count_" + row_id;
    count_input.size = 3;
    count_input.width = "40";
		
    count_input.value = _product.count;
  	  	
    count_input.onkeydown = function(event){
      return numericInput(event, function(){
        basket_item_count_changed(_product);
      });
    };
    count_input.onchange = function(){
      update_basket_item_count(_product);
    };
    row.insertCell(4).appendChild(count_input);
  }
  else
  {
    if (_product.count == null) _product.count = 1;
    row.insertCell(4).appendChild(document.createTextNode(_product.count));
  }
	
  var cellTotalPrice = row.insertCell(5);
  cellTotalPrice.id = "basket_item_total_price_" + row_id;
  cellTotalPrice.appendChild(document.createTextNode(local_price(0)));
	
  if (!_disable_edit) {
    var link = document.createElement('span');
    link.onclick = function(){
      remove_product(_product);
    }

    link.id = "basket_remove_button";

    link.innerHTML = $$('basket_remove').innerHTML;
    var link_cell = row.insertCell(6);
    link_cell.style.textAlign = 'center';
		
    link_cell.appendChild(link);
  }
  else
  {
    if (tbl.rows[0].childNodes.length == 13)
      row.insertCell(6).appendChild(document.createTextNode(""));
  }
	
  basket_item_count_changed(_product);
  log('addProductToTable done');
}	

function isIE()
{
  return /msie/i.test(navigator.userAgent) && !/opera/i.test(navigator.userAgent);
}

function update_total_price()
{
  log('update_total_price');
  var total_price = 0;
  var plastic_price = 0;
  var text_in_basket = '';
  var name_count = 0;
  var postage_price = 0; //$$('postage_price').innerHTML * 1;

  for (var i = 0; i < products_in_basket.length; i++)
  {
    var product = products_in_basket[i];

    total_price += product.price * product.count;

    if ((product.get_sign_type() == "plastic_sign") || (product.get_sign_type() == "name_sign"))
      plastic_price += product.price * product.count;
    /*		else
			plastic_price += product.price * product.count * 0.5;*/
		
    if (product.get_sign_type() == "name_sign")
      name_count += product.count;
			
    text_in_basket += "(" + products_in_basket[i].description + ")";
  /*
		if (product.get_sign_type() == "aluminium_sign") 
			if ((product.width + product.height) > 900)
				postage_price = $$('package_price').innerHTML * 1;
*/
  }
  /*
	var shipping_item = products_in_basket[0];
	shipping_item.price = postage_price;
	$$('basket_item_price_' + shipping_item.basket_id).innerHTML = local_price(postage_price);
	$$('basket_item_total_price_' + shipping_item.basket_id).innerHTML = local_price(postage_price);
*/

  total_price += postage_price;

  if (typeof(debugmode) != 'undefined') {
    $$('items_in_basket').innerHTML = products_in_basket.length;
    $$('text_in_basket').innerHTML = text_in_basket;
  }


  if ($$('basket_discount')) {
    var discount_percent = 0;
		
    if (plastic_price > 700)
      discount_percent = 5;

    if (plastic_price > 1000)
      discount_percent = 10;
			
    if (plastic_price > 2000)
      discount_percent = 15;

    if (plastic_price > 5000)
      discount_percent = 20;

    if (plastic_price > 11000)
      discount_percent = 25;

    if (plastic_price > 18000)
      discount_percent = 30;
    /*
		if (plastic_price > 25000)
			discount_percent = 35;*/

    // Check if order has been updated with a discount
    if($$('coupon[order_discount]')){
      var order_discount = parseInt($$('coupon[order_discount]').value) || 0;
    }

    // If order is discount, subtract the discount
    if(order_discount > 0){
    //total_price = total_price - order_discount;
    }

    if (discount_percent >= 10 || (name_count > 4)) {
      var discount_count = Math.max(name_count - 4, 0) * 4.1;
      var discount = Math.floor(plastic_price * (discount_percent / 100) + discount_count);
  		
      discount_percent = Math.round((discount / total_price) * 100);

      if(!order_discount){
        total_price = total_price - discount;
      }

      var mass_discount = parseInt(local_price_sum(discount));

      if((mass_discount && order_discount == 0) || (mass_discount && !order_discount)) {
        $$('basket_discount_percent').innerHTML = discount_percent + " %";
        $$('basket_discount_price').innerHTML = $$('rabatt').innerHTML + ': ' + local_price(discount);

        if($$('coupon[mass_discount]')) {
          $$('coupon[mass_discount]').value = discount;
        }

        if($$('order_discount')) {
          $$('order_discount').value = discount;
        }

        if($$('order_discount_field')) {
          $$('order_discount_field').value = discount;
        }

        if($$('basket_total_discount_result')){
          $$('basket_total_discount_result').innerHTML = "-" + local_price(discount);
          $$("basket_discount_text").innerHTML = $$('rabatt_inraknat').innerHTML;
        }

        if(isIE()) {
          $$('basket_discount').style.display = "inline";
        } else {
          $$('basket_discount').style.display = "table-row";
        }
      } else {
        if(parseInt(mass_discount) > parseInt(local_price_sum($$('order_discount').value))){

          $$('order_discount').value = discount;
          $$('coupon[order_discount]').value = discount;
          $$('coupon[mass_discount]').value = discount;

          if($$('basket_total_discount_result')){
            $$('basket_total_discount_result').innerHTML = "-" + local_price(discount);
            $$("basket_discount_text").innerHTML = $$('rabatt_inraknat').innerHTML;
          }

          total_price = total_price - discount;
        }else{
          total_price = total_price - order_discount;
        }
      }
    }
    else {
      if($$('basket_total_discount_result') && order_discount > 0){
        $$('basket_total_discount_result').innerHTML = "-" + local_price(order_discount);
        $$("basket_discount_text").innerHTML = $$('rabatt_inraknat').innerHTML;
      }
      if($$('order_discount')) {
        total_price = total_price - order_discount;
      }
      $$('basket_discount').style.display = "none";
    }
  }

  $$('basket_total_price').innerHTML = local_price(total_price);

  if ($$('basket_total_price_2'))
    $$('basket_total_price_2').innerHTML = local_price(total_price);

  if ($$('basket_total_price_total'))
    $$('basket_total_price_total').innerHTML = local_price_with_tax(total_price);

  if ($$('basket_total_price_tax'))
    $$('basket_total_price_tax').innerHTML = local_price_tax(total_price);

  try
  {
    update_basket_buttons();
  }
  catch (e)
  {
  }
}

function basket_item_count_changed(_product)
{
  var id = _product.basket_id;

  try
  {	
    _product.count = $$('basket_item_count_' + id).value * 1;
  }
  catch (e)
  {
  }

  $$('basket_item_total_price_' + id).innerHTML = local_price(_product.count * _product.price);
  update_total_price();
}

function update_basket_item_count(_product)
{
  basket_item_count_changed(_product);
  send_product_to_server(_product);
}

function find_product_from_basket_id(_basket_id)
{
  for (var i = 0; i < products_in_basket.length; i++)
    if (products_in_basket[i].basket_id == _basket_id)
      return products_in_basket[i];
	
  return null;
}

function send_product_to_server(_product)
{
  ajax_request('/order/add', 'product=' + encodeURIComponent($.toJSON(_product)));
}

function ajax_request(_func, _params)
{
  log('ajax_request');

  last_ajax_id++
  _func = $$('pre_language').innerHTML + _func + "?ajax_id=" + last_ajax_id;
  if (_params) _func = _func + "****&****" + _params;
	
  ajax_requests[last_ajax_id] = _func;

  if ($$('basket_status') && ($$('basket_status').innerHTML == ""))
    $$('basket_status').innerHTML = $$('uppdaterar_kundvagnen').innerHTML;

  if (last_ajax_id == (last_received_ajax_id+1))
    send_next_ajax_request();	
}

var ajax_updater_timer;
var ajax_error = false;

function send_next_ajax_request() 
{
  log('send_next_ajax_request');
  if (ajax_updater_timer) clearInterval(ajax_updater_timer);
  ajax_updater_timer = setInterval(function()
  {
    send_next_ajax_request();
  }, 10000);

  var ajax_request = ajax_requests[last_received_ajax_id + 1].split("****&****")
	
  $.ajax({
    url: ajax_request[0],
    data: ajax_request[1],
    type: "post",
    complete: function(request){
      log('ajax complete call');

      if (request.responseText == (last_received_ajax_id + 1)) 
      {
        last_received_ajax_id++;
        delete ajax_requests[request.responseText];
				
        if (last_received_ajax_id == last_ajax_id) {
          clearInterval(ajax_updater_timer);
          if ($$('basket_status')) $$('basket_status').innerHTML = '';
          ajax_error = false;
					
          if (order_basket_when_complete)
            order_basket();
          else
            update_basket_buttons();
        }
        else 
          send_next_ajax_request();
      }
      else{
        if ($$('basket_status')) $$('basket_status').innerHTML = '<span style="color:red">' +
          $$('vantar_pa_skyltmax').innerHTML + "</span>"
        ajax_error = true;
        order_basket_when_complete = false;
        update_basket_buttons();
      }
    }
  });
}

function update_basket_buttons()
{
  if (!$$("basket_order_button")) return;
	
  var no_items = products_in_basket.length == 1;
	
  if ((ajax_error) || no_items) {
    $$("basket_order_button").style.display = "none";
    $$("basket_view_button").style.display = "none";
  }
  else {
    $$("basket_order_button").style.display = "block";
    $$("basket_view_button").style.display = "block";
  }
}

function update_row_index()
{
  var tbl = $$('order_basket_table');		
	
  for (var i = 0; i < tbl.tBodies[0].rows.length-1; i++) {
    tbl.tBodies[0].rows[i].childNodes[0].innerHTML = i + 1;
  }
}

function remove_product(_product)
{
  log('remove_product');
  var index = products_in_basket.indexOf(_product);

  if (index != -1) {
    var tbl = $$('order_basket_table');		
    tbl.deleteRow(index + 1);
    products_in_basket.splice(index, 1);
    ajax_request('/order/remove', 'product=' + encodeURIComponent($.toJSON(_product)))
    update_total_price();
    update_row_index();
  }
}

function empty_basket()
{
  log('empty_basket');
  var tbl = $$('order_basket_table');		
  var rows = tbl.tBodies[0].rows.length - 1;
	
  for (var i = 0; i < rows; i++)
    tbl.tBodies[0].deleteRow(0);
	
  products_in_basket = [];
  update_total_price();
  ajax_request('/order/remove_all');
}