var amount_word = ['товар', 'товара', 'товаров'];

function plural(n) {
  return (n % 10 == 1 && n % 100 != 11 ? 0 : n % 10 >= 2 && n % 10 <= 4 && (n % 100 < 10 || n % 100 >= 20) ? 1 : 2);
}

function form_input_is_float(input){
  return !isNaN(input)&&parseFloat(input)==input;
}

function number_format (number, decimals, dec_point, thousands_sep) {
  // Formats a number with grouped thousands
  //
  // version: 1107.2516
  // discuss at: http://phpjs.org/functions/number_format    // +   original by: Jonas Raoni Soares Silva (http://www.jsfromhell.com)
  // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
  // +     bugfix by: Michael White (http://getsprink.com)
  // +     bugfix by: Benjamin Lupton
  // +     bugfix by: Allan Jensen (http://www.winternet.no)    // +    revised by: Jonas Raoni Soares Silva (http://www.jsfromhell.com)
  // +     bugfix by: Howard Yeend
  // +    revised by: Luke Smith (http://lucassmith.name)
  // +     bugfix by: Diogo Resende
  // +     bugfix by: Rival    // +      input by: Kheang Hok Chin (http://www.distantia.ca/)
  // +   improved by: davook
  // +   improved by: Brett Zamir (http://brett-zamir.me)
  // +      input by: Jay Klehr
  // +   improved by: Brett Zamir (http://brett-zamir.me)    // +      input by: Amir Habibi (http://www.residence-mixte.com/)
  // +     bugfix by: Brett Zamir (http://brett-zamir.me)
  // +   improved by: Theriault
  // +      input by: Amirouche
  // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)    // *     example 1: number_format(1234.56);
  // *     returns 1: '1,235'
  // *     example 2: number_format(1234.56, 2, ',', ' ');
  // *     returns 2: '1 234,56'
  // *     example 3: number_format(1234.5678, 2, '.', '');    // *     returns 3: '1234.57'
  // *     example 4: number_format(67, 2, ',', '.');
  // *     returns 4: '67,00'
  // *     example 5: number_format(1000);
  // *     returns 5: '1,000'    // *     example 6: number_format(67.311, 2);
  // *     returns 6: '67.31'
  // *     example 7: number_format(1000.55, 1);
  // *     returns 7: '1,000.6'
  // *     example 8: number_format(67000, 5, ',', '.');    // *     returns 8: '67.000,00000'
  // *     example 9: number_format(0.9, 0);
  // *     returns 9: '1'
  // *    example 10: number_format('1.20', 2);
  // *    returns 10: '1.20'    // *    example 11: number_format('1.20', 4);
  // *    returns 11: '1.2000'
  // *    example 12: number_format('1.2000', 3);
  // *    returns 12: '1.200'
  // *    example 13: number_format('1 000,50', 2, '.', ' ');    // *    returns 13: '100 050.00'
  // Strip all characters but numerical ones.
  number = (number + '').replace(/[^0-9+\-Ee.]/g, '');
  var n = !isFinite(+number) ? 0 : +number,
    prec = !isFinite(+decimals) ? 0 : Math.abs(decimals),        sep = (typeof thousands_sep === 'undefined') ? ',' : thousands_sep,
    dec = (typeof dec_point === 'undefined') ? '.' : dec_point,
    s = '',
    toFixedFix = function (n, prec) {
        var k = Math.pow(10, prec);return '' + Math.round(n * k) / k;
    };
  // Fix for IE parseFloat(0.55).toFixed(0) = 0;
  s = (prec ? toFixedFix(n, prec) : '' + Math.round(n)).split('.');
  if (s[0].length > 3) {s[0] = s[0].replace(/\B(?=(?:\d{3})+(?!\d))/g, sep);
  }
  if ((s[1] || '').length < prec) {
    s[1] = s[1] || '';
    s[1] += new Array(prec - s[1].length + 1).join('0');}
  return s.join(dec);
}

$(document).ready(function() {
  $(".add_product_form").submit(function() {
    ajax_cart($(".add_product_form").attr("action") + "?ajax=1&square=" + $('.forma .tema input').attr('value') + "&method=" + $('.forma .punkt select').attr('value') + "&pack_square=" + $('#pack_square').attr('value') + "&board=" + $('#board').attr('value'));
    return false;
  });
})

function ajax_cart(url, elem) {
  $.ajax({
    url: url,
    success: function(data){
      var dataJson = $.parseJSON(data);
      if (dataJson.success === 'true') {
        if (typeof elem === 'undefined') {
          add_to_cart();
        } else {
          add_to_cart(elem);
        }
        refresh_cart(dataJson);
      }
    }
  });
}

function ajax_cart_delete(url) {
  $.ajax({
    url: url,
    success: function(data){
      var dataJson = $.parseJSON(data);
      if (dataJson.success === 'true') {
        if (!dataJson.price) {
            window.location.href = "/cart/";
            dataJson.price = '0.00';
        } else {

          refresh_cart(dataJson);
        }
      }
    }
  })
}

function refresh_cart(dataJson) {
  $(".cart_block div").html('<table id="cart"></table><p>Итоговая сумма: <strong></strong></p>');
  $(".cart_block strong").html(number_format(dataJson.price, 0, '', ' ') + ' руб.');
  $("#cart").html('');
  var i = 0;
  for(var k in dataJson.item){
    var v = dataJson.item[k];
    if (v['reserve_value'] != undefined) {
      $("#cart").append("<tr><td>" + v['info']['name'] + " (" + v['reserve_value'] +"%)"  + "</td><td width='40'>" + v['square'] + " м<sup>2</sup></td></tr>");
    } else {
      $("#cart").append("<tr><td>" + v['info']['name'] + "</td><td width='40'>" + v['quantity'] + " " + v['measure'] + "</td></tr>");
    }
    i++;
  }

  $("#CartTitle").html("Товаров в корзине:");
  $('#CartAmount').html(i + " " + amount_word[plural(i)]);
  Cufon.refresh();
}